./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1031.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c 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_1031.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 b9e27277237c869a286fcb7699394ad2f7d80117 .................................................................................................................................................................................................................................................................................. 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_1031.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 b9e27277237c869a286fcb7699394ad2f7d80117 .......................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 16:49:11,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:49:11,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:49:11,390 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:49:11,391 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:49:11,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:49:11,393 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:49:11,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:49:11,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:49:11,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:49:11,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:49:11,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:49:11,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:49:11,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:49:11,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:49:11,404 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:49:11,405 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:49:11,406 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:49:11,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:49:11,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:49:11,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:49:11,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:49:11,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:49:11,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:49:11,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:49:11,418 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:49:11,418 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:49:11,419 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:49:11,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:49:11,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:49:11,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:49:11,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:49:11,423 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:49:11,424 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:49:11,425 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:49:11,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:49:11,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:49:11,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:49:11,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:49:11,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:49:11,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:49:11,429 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 16:49:11,451 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:49:11,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:49:11,453 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:49:11,453 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:49:11,454 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:49:11,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:49:11,454 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:49:11,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 16:49:11,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:49:11,455 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:49:11,456 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:49:11,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:49:11,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:49:11,458 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:49:11,458 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:49:11,458 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:49:11,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:49:11,459 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:49:11,459 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:49:11,459 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:49:11,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:49:11,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:49:11,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:49:11,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:49:11,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:49:11,461 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 16:49:11,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 16:49:11,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:49:11,462 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:49:11,463 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 -> b9e27277237c869a286fcb7699394ad2f7d80117 [2019-11-28 16:49:11,793 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:49:11,809 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:49:11,813 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:49:11,815 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:49:11,815 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:49:11,816 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1031.c [2019-11-28 16:49:11,898 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87e81e8be/33a93a9194d446dd9bf626e61edcf82d/FLAG5f78d7e2e [2019-11-28 16:49:12,380 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:49:12,381 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1031.c [2019-11-28 16:49:12,389 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87e81e8be/33a93a9194d446dd9bf626e61edcf82d/FLAG5f78d7e2e [2019-11-28 16:49:12,748 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87e81e8be/33a93a9194d446dd9bf626e61edcf82d [2019-11-28 16:49:12,751 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:49:12,753 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:49:12,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:49:12,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:49:12,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:49:12,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:49:12" (1/1) ... [2019-11-28 16:49:12,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@461fcea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:12, skipping insertion in model container [2019-11-28 16:49:12,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:49:12" (1/1) ... [2019-11-28 16:49:12,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:49:12,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:49:13,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:49:13,013 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:49:13,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:49:13,127 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:49:13,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:13 WrapperNode [2019-11-28 16:49:13,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:49:13,129 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:49:13,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:49:13,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:49:13,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:13" (1/1) ... [2019-11-28 16:49:13,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:13" (1/1) ... [2019-11-28 16:49:13,170 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:49:13,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:49:13,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:49:13,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:49:13,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:13" (1/1) ... [2019-11-28 16:49:13,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:13" (1/1) ... [2019-11-28 16:49:13,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:13" (1/1) ... [2019-11-28 16:49:13,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:13" (1/1) ... [2019-11-28 16:49:13,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:13" (1/1) ... [2019-11-28 16:49:13,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:13" (1/1) ... [2019-11-28 16:49:13,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:13" (1/1) ... [2019-11-28 16:49:13,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:49:13,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:49:13,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:49:13,204 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:49:13,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:13" (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 [2019-11-28 16:49:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-28 16:49:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 16:49:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-28 16:49:13,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:49:13,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:49:13,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 16:49:13,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 16:49:13,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 16:49:13,581 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:49:13,581 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-28 16:49:13,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:13 BoogieIcfgContainer [2019-11-28 16:49:13,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:49:13,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:49:13,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:49:13,589 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:49:13,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:49:12" (1/3) ... [2019-11-28 16:49:13,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa0f876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:49:13, skipping insertion in model container [2019-11-28 16:49:13,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:13" (2/3) ... [2019-11-28 16:49:13,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa0f876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:49:13, skipping insertion in model container [2019-11-28 16:49:13,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:13" (3/3) ... [2019-11-28 16:49:13,595 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1031.c [2019-11-28 16:49:13,607 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:49:13,615 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 16:49:13,628 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 16:49:13,656 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:49:13,656 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:49:13,656 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:49:13,657 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:49:13,657 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:49:13,657 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:49:13,657 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:49:13,657 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:49:13,676 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-28 16:49:13,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 16:49:13,684 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:49:13,685 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:49:13,685 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:49:13,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:49:13,691 INFO L82 PathProgramCache]: Analyzing trace with hash 2068161395, now seen corresponding path program 1 times [2019-11-28 16:49:13,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:49:13,700 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970336071] [2019-11-28 16:49:13,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:49:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:49:13,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:49:13,809 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970336071] [2019-11-28 16:49:13,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:49:13,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 16:49:13,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588300683] [2019-11-28 16:49:13,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 16:49:13,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 16:49:13,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 16:49:13,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 16:49:13,833 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-11-28 16:49:13,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:49:13,851 INFO L93 Difference]: Finished difference Result 50 states and 74 transitions. [2019-11-28 16:49:13,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 16:49:13,852 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-28 16:49:13,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:49:13,863 INFO L225 Difference]: With dead ends: 50 [2019-11-28 16:49:13,863 INFO L226 Difference]: Without dead ends: 23 [2019-11-28 16:49:13,867 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 [2019-11-28 16:49:13,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-28 16:49:13,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-28 16:49:13,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-28 16:49:13,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2019-11-28 16:49:13,899 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 11 [2019-11-28 16:49:13,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:49:13,899 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-28 16:49:13,899 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 16:49:13,899 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2019-11-28 16:49:13,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 16:49:13,900 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:49:13,900 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:49:13,901 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:49:13,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:49:13,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1606884976, now seen corresponding path program 1 times [2019-11-28 16:49:13,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:49:13,902 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38391150] [2019-11-28 16:49:13,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:49:13,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:49:13,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:49:14,011 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 16:49:14,012 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 16:49:14,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:49:14 BoogieIcfgContainer [2019-11-28 16:49:14,039 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:49:14,040 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:49:14,040 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:49:14,040 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:49:14,041 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:13" (3/4) ... [2019-11-28 16:49:14,045 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 16:49:14,046 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:49:14,048 INFO L168 Benchmark]: Toolchain (without parser) took 1294.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -111.2 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:14,049 INFO L168 Benchmark]: CDTParser took 0.89 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. [2019-11-28 16:49:14,050 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -164.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:14,051 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.05 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:14,052 INFO L168 Benchmark]: Boogie Preprocessor took 32.40 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. [2019-11-28 16:49:14,053 INFO L168 Benchmark]: RCFGBuilder took 380.59 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: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:14,054 INFO L168 Benchmark]: TraceAbstraction took 454.38 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: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:14,054 INFO L168 Benchmark]: Witness Printer took 5.85 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. [2019-11-28 16:49:14,059 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89 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 374.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -164.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.05 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.40 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 380.59 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: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 454.38 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: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.85 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: 79]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 34, overapproximation of someBinaryArithmeticDOUBLEoperation at line 74, overapproximation of bitwiseAnd at line 35, overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L74] double x = 0.0 / 0.0; [L18] __int32_t msw, exponent_less_1023; [L19] __uint32_t lsw; [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (msw) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lsw) = ew_u.parts.lsw [L26] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L27] COND TRUE exponent_less_1023 < 20 [L28] COND FALSE !(exponent_less_1023 < 0) [L34] __uint32_t exponent_mask = 0x000fffff >> exponent_less_1023; [L35] COND TRUE (msw & exponent_mask) == 0 && lsw == 0 [L36] return x; [L75] double res = round_double(x); [L15] return x != x; [L78] COND TRUE !isnan_double(res) [L79] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 33 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=26occurred 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, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 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 0.1.25-f470102 [2019-11-28 16:49:15,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:49:15,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:49:15,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:49:15,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:49:15,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:49:15,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:49:15,993 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:49:15,995 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:49:15,996 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:49:15,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:49:15,998 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:49:15,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:49:15,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:49:16,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:49:16,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:49:16,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:49:16,004 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:49:16,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:49:16,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:49:16,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:49:16,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:49:16,012 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:49:16,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:49:16,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:49:16,016 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:49:16,017 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:49:16,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:49:16,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:49:16,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:49:16,020 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:49:16,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:49:16,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:49:16,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:49:16,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:49:16,024 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:49:16,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:49:16,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:49:16,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:49:16,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:49:16,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:49:16,029 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-28 16:49:16,046 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:49:16,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:49:16,049 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:49:16,050 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:49:16,050 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:49:16,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:49:16,051 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:49:16,051 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:49:16,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:49:16,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:49:16,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:49:16,054 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:49:16,054 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 16:49:16,054 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 16:49:16,055 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:49:16,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:49:16,055 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:49:16,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:49:16,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:49:16,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:49:16,057 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:49:16,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:49:16,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:49:16,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:49:16,058 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:49:16,058 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:49:16,058 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 16:49:16,059 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 16:49:16,059 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:49:16,059 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:49:16,060 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 16:49:16,060 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 -> b9e27277237c869a286fcb7699394ad2f7d80117 [2019-11-28 16:49:16,383 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:49:16,398 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:49:16,406 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:49:16,408 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:49:16,409 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:49:16,410 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1031.c [2019-11-28 16:49:16,484 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a639f8a04/69529c1c563d43fe84841aceb7cf0601/FLAG22d312740 [2019-11-28 16:49:16,982 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:49:16,983 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1031.c [2019-11-28 16:49:16,990 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a639f8a04/69529c1c563d43fe84841aceb7cf0601/FLAG22d312740 [2019-11-28 16:49:17,354 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a639f8a04/69529c1c563d43fe84841aceb7cf0601 [2019-11-28 16:49:17,358 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:49:17,360 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:49:17,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:49:17,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:49:17,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:49:17,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:49:17" (1/1) ... [2019-11-28 16:49:17,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b39a8f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:17, skipping insertion in model container [2019-11-28 16:49:17,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:49:17" (1/1) ... [2019-11-28 16:49:17,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:49:17,403 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:49:17,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:49:17,686 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:49:17,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:49:17,816 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:49:17,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:17 WrapperNode [2019-11-28 16:49:17,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:49:17,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:49:17,819 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:49:17,819 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:49:17,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:17" (1/1) ... [2019-11-28 16:49:17,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:17" (1/1) ... [2019-11-28 16:49:17,877 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:49:17,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:49:17,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:49:17,878 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:49:17,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:17" (1/1) ... [2019-11-28 16:49:17,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:17" (1/1) ... [2019-11-28 16:49:17,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:17" (1/1) ... [2019-11-28 16:49:17,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:17" (1/1) ... [2019-11-28 16:49:17,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:17" (1/1) ... [2019-11-28 16:49:17,909 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:17" (1/1) ... [2019-11-28 16:49:17,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:17" (1/1) ... [2019-11-28 16:49:17,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:49:17,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:49:17,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:49:17,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:49:17,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:17" (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 [2019-11-28 16:49:18,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-28 16:49:18,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-28 16:49:18,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 16:49:18,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-28 16:49:18,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:49:18,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:49:18,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-28 16:49:18,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 16:49:18,549 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:49:18,549 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-28 16:49:18,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:18 BoogieIcfgContainer [2019-11-28 16:49:18,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:49:18,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:49:18,554 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:49:18,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:49:18,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:49:17" (1/3) ... [2019-11-28 16:49:18,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@830ed60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:49:18, skipping insertion in model container [2019-11-28 16:49:18,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:17" (2/3) ... [2019-11-28 16:49:18,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@830ed60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:49:18, skipping insertion in model container [2019-11-28 16:49:18,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:18" (3/3) ... [2019-11-28 16:49:18,561 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1031.c [2019-11-28 16:49:18,579 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:49:18,586 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 16:49:18,598 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 16:49:18,621 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:49:18,621 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:49:18,621 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:49:18,622 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:49:18,622 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:49:18,622 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:49:18,622 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:49:18,622 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:49:18,635 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-28 16:49:18,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 16:49:18,641 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:49:18,642 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:49:18,643 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:49:18,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:49:18,650 INFO L82 PathProgramCache]: Analyzing trace with hash 2068161395, now seen corresponding path program 1 times [2019-11-28 16:49:18,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:49:18,662 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1911138986] [2019-11-28 16:49:18,662 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 [2019-11-28 16:49:18,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:49:18,760 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-28 16:49:18,765 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:49:18,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:49:18,779 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:49:18,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:49:18,785 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1911138986] [2019-11-28 16:49:18,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:49:18,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-28 16:49:18,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316472663] [2019-11-28 16:49:18,794 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 16:49:18,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:49:18,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 16:49:18,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 16:49:18,810 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-11-28 16:49:18,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:49:18,827 INFO L93 Difference]: Finished difference Result 50 states and 74 transitions. [2019-11-28 16:49:18,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 16:49:18,829 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-28 16:49:18,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:49:18,840 INFO L225 Difference]: With dead ends: 50 [2019-11-28 16:49:18,841 INFO L226 Difference]: Without dead ends: 23 [2019-11-28 16:49:18,845 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 16:49:18,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-28 16:49:18,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-28 16:49:18,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-28 16:49:18,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2019-11-28 16:49:18,899 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 11 [2019-11-28 16:49:18,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:49:18,900 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-28 16:49:18,900 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 16:49:18,900 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2019-11-28 16:49:18,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 16:49:18,900 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:49:18,901 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:49:19,101 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 16:49:19,102 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:49:19,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:49:19,103 INFO L82 PathProgramCache]: Analyzing trace with hash -1606884976, now seen corresponding path program 1 times [2019-11-28 16:49:19,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:49:19,105 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1777960213] [2019-11-28 16:49:19,106 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 [2019-11-28 16:49:19,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:49:19,205 INFO L264 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 16:49:19,207 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:49:19,297 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 16:49:19,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:49:19,360 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:49:19,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:49:19,498 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1777960213] [2019-11-28 16:49:19,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:49:19,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-28 16:49:19,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75346157] [2019-11-28 16:49:19,501 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-28 16:49:19,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:49:19,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-28 16:49:19,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-28 16:49:19,504 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. Second operand 10 states. [2019-11-28 16:49:20,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:49:20,277 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2019-11-28 16:49:20,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 16:49:20,278 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-11-28 16:49:20,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:49:20,280 INFO L225 Difference]: With dead ends: 28 [2019-11-28 16:49:20,280 INFO L226 Difference]: Without dead ends: 22 [2019-11-28 16:49:20,282 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2019-11-28 16:49:20,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-28 16:49:20,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-11-28 16:49:20,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-28 16:49:20,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2019-11-28 16:49:20,286 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 12 [2019-11-28 16:49:20,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:49:20,287 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2019-11-28 16:49:20,287 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-28 16:49:20,287 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2019-11-28 16:49:20,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 16:49:20,288 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:49:20,288 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:49:20,501 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 16:49:20,501 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:49:20,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:49:20,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1251020519, now seen corresponding path program 1 times [2019-11-28 16:49:20,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:49:20,504 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1392938117] [2019-11-28 16:49:20,504 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 [2019-11-28 16:49:20,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:49:20,607 INFO L264 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 16:49:20,610 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:49:20,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:49:20,761 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:49:20,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:49:20,960 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1392938117] [2019-11-28 16:49:20,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:49:20,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-28 16:49:20,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709381483] [2019-11-28 16:49:20,961 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 16:49:20,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:49:20,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 16:49:20,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-28 16:49:20,963 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 8 states. [2019-11-28 16:49:21,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:49:21,253 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2019-11-28 16:49:21,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 16:49:21,255 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-11-28 16:49:21,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:49:21,256 INFO L225 Difference]: With dead ends: 22 [2019-11-28 16:49:21,256 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 16:49:21,258 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-28 16:49:21,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 16:49:21,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 16:49:21,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 16:49:21,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 16:49:21,259 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-28 16:49:21,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:49:21,259 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 16:49:21,259 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 16:49:21,260 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 16:49:21,260 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 16:49:21,464 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-28 16:49:21,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 16:49:21,612 INFO L246 CegarLoopResult]: For program point L27(lines 27 56) no Hoare annotation was computed. [2019-11-28 16:49:21,612 INFO L246 CegarLoopResult]: For program point L52(lines 52 53) no Hoare annotation was computed. [2019-11-28 16:49:21,613 INFO L246 CegarLoopResult]: For program point L52-2(lines 52 53) no Hoare annotation was computed. [2019-11-28 16:49:21,613 INFO L242 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (not (fp.eq |ULTIMATE.start_round_double_#res| |ULTIMATE.start_round_double_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_round_double_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))))) [2019-11-28 16:49:21,613 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-28 16:49:21,613 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 16:49:21,613 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 16:49:21,613 INFO L246 CegarLoopResult]: For program point L28(lines 28 40) no Hoare annotation was computed. [2019-11-28 16:49:21,614 INFO L246 CegarLoopResult]: For program point L57(lines 57 62) no Hoare annotation was computed. [2019-11-28 16:49:21,614 INFO L246 CegarLoopResult]: For program point L57-1(lines 17 64) no Hoare annotation was computed. [2019-11-28 16:49:21,614 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 79) no Hoare annotation was computed. [2019-11-28 16:49:21,615 INFO L246 CegarLoopResult]: For program point L57-2(lines 57 62) no Hoare annotation was computed. [2019-11-28 16:49:21,615 INFO L246 CegarLoopResult]: For program point L20-1(lines 20 25) no Hoare annotation was computed. [2019-11-28 16:49:21,615 INFO L242 CegarLoopResult]: At program point L20-2(lines 20 25) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_round_double_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)))) [2019-11-28 16:49:21,615 INFO L246 CegarLoopResult]: For program point L20-3(lines 20 25) no Hoare annotation was computed. [2019-11-28 16:49:21,615 INFO L246 CegarLoopResult]: For program point L49(lines 49 50) no Hoare annotation was computed. [2019-11-28 16:49:21,615 INFO L246 CegarLoopResult]: For program point L78(lines 78 81) no Hoare annotation was computed. [2019-11-28 16:49:21,616 INFO L246 CegarLoopResult]: For program point L41(lines 41 56) no Hoare annotation was computed. [2019-11-28 16:49:21,616 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 16:49:21,616 INFO L249 CegarLoopResult]: At program point L83(lines 66 84) the Hoare annotation is: true [2019-11-28 16:49:21,616 INFO L246 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2019-11-28 16:49:21,616 INFO L246 CegarLoopResult]: For program point L42(lines 42 45) no Hoare annotation was computed. [2019-11-28 16:49:21,616 INFO L242 CegarLoopResult]: At program point L63(lines 17 64) the Hoare annotation is: (and (not (fp.eq |ULTIMATE.start_round_double_#res| |ULTIMATE.start_round_double_#res|)) (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_round_double_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))))) [2019-11-28 16:49:21,616 INFO L246 CegarLoopResult]: For program point L30(lines 30 31) no Hoare annotation was computed. [2019-11-28 16:49:21,617 INFO L246 CegarLoopResult]: For program point L30-2(lines 30 31) no Hoare annotation was computed. [2019-11-28 16:49:21,618 INFO L246 CegarLoopResult]: For program point L35(lines 35 36) no Hoare annotation was computed. [2019-11-28 16:49:21,625 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-28 16:49:21,634 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-28 16:49:21,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-28 16:49:21,637 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-28 16:49:21,638 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-28 16:49:21,638 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-28 16:49:21,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:49:21 BoogieIcfgContainer [2019-11-28 16:49:21,641 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:49:21,642 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:49:21,642 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:49:21,642 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:49:21,643 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:18" (3/4) ... [2019-11-28 16:49:21,647 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 16:49:21,661 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-28 16:49:21,661 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-28 16:49:21,662 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 16:49:21,694 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2019-11-28 16:49:21,695 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !~fp.eq~DOUBLE(\result, \result) && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2019-11-28 16:49:21,695 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!~fp.eq~DOUBLE(\result, \result) && 1bv32 == \result) && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2019-11-28 16:49:21,739 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 16:49:21,743 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:49:21,746 INFO L168 Benchmark]: Toolchain (without parser) took 4385.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 955.0 MB in the beginning and 997.4 MB in the end (delta: -42.4 MB). Peak memory consumption was 90.2 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:21,747 INFO L168 Benchmark]: CDTParser took 0.29 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. [2019-11-28 16:49:21,748 INFO L168 Benchmark]: CACSL2BoogieTranslator took 456.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -174.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:21,748 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.51 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:21,749 INFO L168 Benchmark]: Boogie Preprocessor took 42.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:49:21,749 INFO L168 Benchmark]: RCFGBuilder took 631.00 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: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:21,755 INFO L168 Benchmark]: TraceAbstraction took 3088.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 997.4 MB in the end (delta: 99.5 MB). Peak memory consumption was 99.5 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:21,755 INFO L168 Benchmark]: Witness Printer took 101.84 ms. Allocated memory is still 1.2 GB. Free memory is still 997.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:49:21,761 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 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 456.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -174.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.51 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 631.00 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: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3088.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 997.4 MB in the end (delta: 99.5 MB). Peak memory consumption was 99.5 MB. Max. memory is 11.5 GB. * Witness Printer took 101.84 ms. Allocated memory is still 1.2 GB. Free memory is still 997.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 79]: 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: 17]: Loop Invariant [2019-11-28 16:49:21,774 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-28 16:49:21,781 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: !~fp.eq~DOUBLE(\result, \result) && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 15]: Loop Invariant [2019-11-28 16:49:21,783 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-28 16:49:21,784 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (!~fp.eq~DOUBLE(\result, \result) && 1bv32 == \result) && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 20]: Loop Invariant [2019-11-28 16:49:21,785 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-28 16:49:21,785 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Result: SAFE, OverallTime: 2.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 59 SDtfs, 30 SDslu, 99 SDs, 0 SdLazy, 45 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 35 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 5 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 12 QuantifiedInterpolants, 3143 SizeOfPredicates, 18 NumberOfNonLiveVariables, 110 ConjunctsInSsa, 19 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! Received shutdown request...