./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0685b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c1f4b5c4 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_0685b.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 201a5d6458c151e9fb4933ccfe2d7ea552ed2537 ......................................................................................................................................................................................................................................................................................................................... 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_0685b.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 201a5d6458c151e9fb4933ccfe2d7ea552ed2537 ........................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-c1f4b5c [2019-12-08 15:49:05,559 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-08 15:49:05,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-08 15:49:05,580 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-08 15:49:05,580 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-08 15:49:05,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-08 15:49:05,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-08 15:49:05,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-08 15:49:05,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-08 15:49:05,601 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-08 15:49:05,602 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-08 15:49:05,604 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-08 15:49:05,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-08 15:49:05,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-08 15:49:05,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-08 15:49:05,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-08 15:49:05,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-08 15:49:05,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-08 15:49:05,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-08 15:49:05,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-08 15:49:05,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-08 15:49:05,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-08 15:49:05,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-08 15:49:05,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-08 15:49:05,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-08 15:49:05,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-08 15:49:05,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-08 15:49:05,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-08 15:49:05,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-08 15:49:05,636 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-08 15:49:05,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-08 15:49:05,637 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-08 15:49:05,638 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-08 15:49:05,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-08 15:49:05,640 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-08 15:49:05,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-08 15:49:05,642 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-08 15:49:05,642 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-08 15:49:05,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-08 15:49:05,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-08 15:49:05,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-08 15:49:05,645 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-08 15:49:05,669 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-08 15:49:05,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-08 15:49:05,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-08 15:49:05,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-08 15:49:05,673 INFO L138 SettingsManager]: * Use SBE=true [2019-12-08 15:49:05,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-08 15:49:05,673 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-08 15:49:05,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-08 15:49:05,673 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-08 15:49:05,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-08 15:49:05,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-08 15:49:05,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-08 15:49:05,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-08 15:49:05,674 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-08 15:49:05,675 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-08 15:49:05,675 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-08 15:49:05,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-08 15:49:05,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-08 15:49:05,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-08 15:49:05,676 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-08 15:49:05,676 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-08 15:49:05,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-08 15:49:05,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-08 15:49:05,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-08 15:49:05,677 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-08 15:49:05,677 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-08 15:49:05,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-08 15:49:05,678 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-08 15:49:05,678 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-08 15:49:05,678 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 -> 201a5d6458c151e9fb4933ccfe2d7ea552ed2537 [2019-12-08 15:49:05,977 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-08 15:49:05,997 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-08 15:49:06,001 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-08 15:49:06,003 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-08 15:49:06,003 INFO L275 PluginConnector]: CDTParser initialized [2019-12-08 15:49:06,004 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0685b.c [2019-12-08 15:49:06,077 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca9695618/33910c6171c54e208c4e82ba9cdc9841/FLAGbc873b3eb [2019-12-08 15:49:06,613 INFO L306 CDTParser]: Found 1 translation units. [2019-12-08 15:49:06,614 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0685b.c [2019-12-08 15:49:06,627 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca9695618/33910c6171c54e208c4e82ba9cdc9841/FLAGbc873b3eb [2019-12-08 15:49:06,951 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca9695618/33910c6171c54e208c4e82ba9cdc9841 [2019-12-08 15:49:06,954 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-08 15:49:06,956 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-08 15:49:06,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-08 15:49:06,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-08 15:49:06,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-08 15:49:06,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:49:06" (1/1) ... [2019-12-08 15:49:06,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c4b9fb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:06, skipping insertion in model container [2019-12-08 15:49:06,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:49:06" (1/1) ... [2019-12-08 15:49:06,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-08 15:49:07,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-08 15:49:07,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:49:07,315 INFO L203 MainTranslator]: Completed pre-run [2019-12-08 15:49:07,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:49:07,402 INFO L208 MainTranslator]: Completed translation [2019-12-08 15:49:07,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:07 WrapperNode [2019-12-08 15:49:07,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-08 15:49:07,404 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-08 15:49:07,404 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-08 15:49:07,404 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-08 15:49:07,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:07" (1/1) ... [2019-12-08 15:49:07,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:07" (1/1) ... [2019-12-08 15:49:07,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-08 15:49:07,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-08 15:49:07,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-08 15:49:07,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-08 15:49:07,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:07" (1/1) ... [2019-12-08 15:49:07,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:07" (1/1) ... [2019-12-08 15:49:07,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:07" (1/1) ... [2019-12-08 15:49:07,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:07" (1/1) ... [2019-12-08 15:49:07,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:07" (1/1) ... [2019-12-08 15:49:07,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:07" (1/1) ... [2019-12-08 15:49:07,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:07" (1/1) ... [2019-12-08 15:49:07,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-08 15:49:07,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-08 15:49:07,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-08 15:49:07,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-08 15:49:07,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:07" (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 [2019-12-08 15:49:07,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-08 15:49:07,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-08 15:49:07,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-08 15:49:07,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-08 15:49:07,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-08 15:49:07,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-08 15:49:07,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-08 15:49:07,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-12-08 15:49:07,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-08 15:49:08,472 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-08 15:49:08,472 INFO L287 CfgBuilder]: Removed 44 assume(true) statements. [2019-12-08 15:49:08,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:49:08 BoogieIcfgContainer [2019-12-08 15:49:08,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-08 15:49:08,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-08 15:49:08,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-08 15:49:08,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-08 15:49:08,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 03:49:06" (1/3) ... [2019-12-08 15:49:08,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a11aa27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:49:08, skipping insertion in model container [2019-12-08 15:49:08,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:07" (2/3) ... [2019-12-08 15:49:08,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a11aa27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:49:08, skipping insertion in model container [2019-12-08 15:49:08,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:49:08" (3/3) ... [2019-12-08 15:49:08,486 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0685b.c [2019-12-08 15:49:08,494 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-08 15:49:08,502 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-08 15:49:08,512 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-08 15:49:08,534 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-08 15:49:08,534 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-08 15:49:08,534 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-08 15:49:08,534 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-08 15:49:08,534 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-08 15:49:08,535 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-08 15:49:08,535 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-08 15:49:08,535 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-08 15:49:08,552 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-12-08 15:49:08,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-08 15:49:08,559 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:49:08,560 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:49:08,560 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:49:08,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:49:08,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1264059097, now seen corresponding path program 1 times [2019-12-08 15:49:08,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-08 15:49:08,577 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848909570] [2019-12-08 15:49:08,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-08 15:49:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-08 15:49:08,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:49:08,749 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848909570] [2019-12-08 15:49:08,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-08 15:49:08,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-08 15:49:08,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212531401] [2019-12-08 15:49:08,757 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-08 15:49:08,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-08 15:49:08,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-08 15:49:08,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-08 15:49:08,774 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2019-12-08 15:49:08,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-08 15:49:08,813 INFO L93 Difference]: Finished difference Result 224 states and 378 transitions. [2019-12-08 15:49:08,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-08 15:49:08,815 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-08 15:49:08,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-08 15:49:08,826 INFO L225 Difference]: With dead ends: 224 [2019-12-08 15:49:08,826 INFO L226 Difference]: Without dead ends: 110 [2019-12-08 15:49:08,830 INFO L631 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 [2019-12-08 15:49:08,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-12-08 15:49:08,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-12-08 15:49:08,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-12-08 15:49:08,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2019-12-08 15:49:08,873 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 10 [2019-12-08 15:49:08,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-08 15:49:08,873 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2019-12-08 15:49:08,874 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-08 15:49:08,874 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2019-12-08 15:49:08,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-08 15:49:08,874 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:49:08,875 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:49:08,875 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:49:08,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:49:08,875 INFO L82 PathProgramCache]: Analyzing trace with hash -925329470, now seen corresponding path program 1 times [2019-12-08 15:49:08,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-08 15:49:08,876 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095650303] [2019-12-08 15:49:08,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-08 15:49:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-08 15:49:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-08 15:49:09,062 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-08 15:49:09,062 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-08 15:49:09,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 03:49:09 BoogieIcfgContainer [2019-12-08 15:49:09,125 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-08 15:49:09,126 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-08 15:49:09,126 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-08 15:49:09,126 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-08 15:49:09,127 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:49:08" (3/4) ... [2019-12-08 15:49:09,130 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-08 15:49:09,130 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-08 15:49:09,133 INFO L168 Benchmark]: Toolchain (without parser) took 2176.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 959.0 MB in the beginning and 1.0 GB in the end (delta: -53.2 MB). Peak memory consumption was 74.3 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:09,133 INFO L168 Benchmark]: CDTParser took 0.81 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. [2019-12-08 15:49:09,134 INFO L168 Benchmark]: CACSL2BoogieTranslator took 446.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -151.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:09,135 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.28 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. [2019-12-08 15:49:09,136 INFO L168 Benchmark]: Boogie Preprocessor took 83.21 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. [2019-12-08 15:49:09,137 INFO L168 Benchmark]: RCFGBuilder took 909.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:09,138 INFO L168 Benchmark]: TraceAbstraction took 649.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:09,139 INFO L168 Benchmark]: Witness Printer took 4.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-08 15:49:09,144 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 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 446.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -151.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.28 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 83.21 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. * RCFGBuilder took 909.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.9 MB). Peak memory consumption was 51.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 649.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 258]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 162, overapproximation of someUnaryDOUBLEoperation at line 52, overapproximation of someBinaryArithmeticDOUBLEoperation at line 163, overapproximation of bitwiseAnd at line 160, overapproximation of someBinaryDOUBLEComparisonOperation at line 257. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L251] double x = -1.0 / 0.0; [L252] double y = -1.0 / 0.0; [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L254] double res = __ieee754_atan2(y, x); [L257] COND TRUE res != -3 * pi_o_4 VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L258] __VERIFIER_error() VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 161 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=113occurred 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, 0.1s 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 0.1.25-c1f4b5c [2019-12-08 15:49:11,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-08 15:49:11,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-08 15:49:11,131 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-12-08 15:49:11,157 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-08 15:49:11,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-08 15:49:11,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-08 15:49:11,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-08 15:49:11,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-08 15:49:11,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-08 15:49:11,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-08 15:49:11,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-08 15:49:11,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-08 15:49:11,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-08 15:49:11,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-08 15:49:11,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-08 15:49:11,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-08 15:49:11,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-08 15:49:11,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-08 15:49:11,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-08 15:49:11,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-08 15:49:11,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-08 15:49:11,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-08 15:49:11,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-08 15:49:11,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-08 15:49:11,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-08 15:49:11,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-08 15:49:11,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-08 15:49:11,201 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-08 15:49:11,238 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-08 15:49:11,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-08 15:49:11,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-08 15:49:11,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-08 15:49:11,240 INFO L138 SettingsManager]: * Use SBE=true [2019-12-08 15:49:11,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-08 15:49:11,240 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-08 15:49:11,240 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-08 15:49:11,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-08 15:49:11,241 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-08 15:49:11,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-08 15:49:11,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-08 15:49:11,242 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-08 15:49:11,242 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-08 15:49:11,242 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-08 15:49:11,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-08 15:49:11,242 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-08 15:49:11,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-08 15:49:11,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-08 15:49:11,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-08 15:49:11,243 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-08 15:49:11,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-08 15:49:11,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-08 15:49:11,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-08 15:49:11,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-08 15:49:11,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-08 15:49:11,245 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-08 15:49:11,245 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-08 15:49:11,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-08 15:49:11,245 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-08 15:49:11,246 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-08 15:49:11,246 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 -> 201a5d6458c151e9fb4933ccfe2d7ea552ed2537 [2019-12-08 15:49:11,583 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-08 15:49:11,596 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-08 15:49:11,599 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-08 15:49:11,601 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-08 15:49:11,602 INFO L275 PluginConnector]: CDTParser initialized [2019-12-08 15:49:11,602 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0685b.c [2019-12-08 15:49:11,661 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/021aed940/94afecb6ce224f83a448cb509733da4e/FLAG096f7d689 [2019-12-08 15:49:12,127 INFO L306 CDTParser]: Found 1 translation units. [2019-12-08 15:49:12,128 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0685b.c [2019-12-08 15:49:12,139 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/021aed940/94afecb6ce224f83a448cb509733da4e/FLAG096f7d689 [2019-12-08 15:49:12,493 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/021aed940/94afecb6ce224f83a448cb509733da4e [2019-12-08 15:49:12,496 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-08 15:49:12,497 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-08 15:49:12,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-08 15:49:12,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-08 15:49:12,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-08 15:49:12,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:49:12" (1/1) ... [2019-12-08 15:49:12,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13cd0a35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:12, skipping insertion in model container [2019-12-08 15:49:12,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:49:12" (1/1) ... [2019-12-08 15:49:12,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-08 15:49:12,544 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-08 15:49:12,854 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:49:12,869 INFO L203 MainTranslator]: Completed pre-run [2019-12-08 15:49:12,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:49:13,026 INFO L208 MainTranslator]: Completed translation [2019-12-08 15:49:13,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:13 WrapperNode [2019-12-08 15:49:13,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-08 15:49:13,029 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-08 15:49:13,030 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-08 15:49:13,031 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-08 15:49:13,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:13" (1/1) ... [2019-12-08 15:49:13,067 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:13" (1/1) ... [2019-12-08 15:49:13,113 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-08 15:49:13,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-08 15:49:13,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-08 15:49:13,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-08 15:49:13,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:13" (1/1) ... [2019-12-08 15:49:13,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:13" (1/1) ... [2019-12-08 15:49:13,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:13" (1/1) ... [2019-12-08 15:49:13,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:13" (1/1) ... [2019-12-08 15:49:13,180 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:13" (1/1) ... [2019-12-08 15:49:13,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:13" (1/1) ... [2019-12-08 15:49:13,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:13" (1/1) ... [2019-12-08 15:49:13,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-08 15:49:13,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-08 15:49:13,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-08 15:49:13,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-08 15:49:13,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:13" (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 [2019-12-08 15:49:13,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-08 15:49:13,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-08 15:49:13,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-08 15:49:13,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-12-08 15:49:13,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-08 15:49:13,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-08 15:49:13,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-08 15:49:13,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-08 15:49:13,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-08 15:49:51,708 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-08 15:49:51,709 INFO L287 CfgBuilder]: Removed 44 assume(true) statements. [2019-12-08 15:49:51,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:49:51 BoogieIcfgContainer [2019-12-08 15:49:51,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-08 15:49:51,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-08 15:49:51,711 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-08 15:49:51,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-08 15:49:51,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 03:49:12" (1/3) ... [2019-12-08 15:49:51,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d74907e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:49:51, skipping insertion in model container [2019-12-08 15:49:51,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:13" (2/3) ... [2019-12-08 15:49:51,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d74907e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:49:51, skipping insertion in model container [2019-12-08 15:49:51,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:49:51" (3/3) ... [2019-12-08 15:49:51,718 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0685b.c [2019-12-08 15:49:51,727 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-08 15:49:51,734 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-08 15:49:51,744 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-08 15:49:51,768 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-08 15:49:51,768 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-08 15:49:51,768 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-08 15:49:51,768 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-08 15:49:51,769 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-08 15:49:51,769 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-08 15:49:51,769 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-08 15:49:51,769 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-08 15:49:51,798 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-12-08 15:49:51,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-08 15:49:51,804 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:49:51,805 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:49:51,805 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:49:51,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:49:51,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1264059097, now seen corresponding path program 1 times [2019-12-08 15:49:51,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-08 15:49:51,822 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [903137727] [2019-12-08 15:49:51,822 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 [2019-12-08 15:49:52,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-08 15:49:52,324 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-08 15:49:52,328 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-08 15:49:52,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:49:52,342 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-08 15:49:52,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:49:52,346 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [903137727] [2019-12-08 15:49:52,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-08 15:49:52,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-08 15:49:52,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141881644] [2019-12-08 15:49:52,357 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-08 15:49:52,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-08 15:49:52,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-08 15:49:52,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-08 15:49:52,370 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2019-12-08 15:49:52,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-08 15:49:52,401 INFO L93 Difference]: Finished difference Result 224 states and 378 transitions. [2019-12-08 15:49:52,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-08 15:49:52,403 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-08 15:49:52,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-08 15:49:52,416 INFO L225 Difference]: With dead ends: 224 [2019-12-08 15:49:52,416 INFO L226 Difference]: Without dead ends: 110 [2019-12-08 15:49:52,420 INFO L631 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 [2019-12-08 15:49:52,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-12-08 15:49:52,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-12-08 15:49:52,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-12-08 15:49:52,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2019-12-08 15:49:52,468 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 10 [2019-12-08 15:49:52,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-08 15:49:52,469 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2019-12-08 15:49:52,469 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-08 15:49:52,469 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2019-12-08 15:49:52,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-08 15:49:52,470 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:49:52,470 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:49:52,677 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-08 15:49:52,677 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:49:52,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:49:52,678 INFO L82 PathProgramCache]: Analyzing trace with hash -925329470, now seen corresponding path program 1 times [2019-12-08 15:49:52,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-08 15:49:52,680 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [676201642] [2019-12-08 15:49:52,680 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 [2019-12-08 15:49:53,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-08 15:49:54,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-08 15:49:54,391 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-08 15:49:54,391 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-08 15:49:54,593 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-08 15:49:54,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 03:49:54 BoogieIcfgContainer [2019-12-08 15:49:54,661 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-08 15:49:54,661 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-08 15:49:54,662 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-08 15:49:54,662 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-08 15:49:54,663 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:49:51" (3/4) ... [2019-12-08 15:49:54,665 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-08 15:49:54,752 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-12-08 15:49:54,752 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-08 15:49:54,755 INFO L168 Benchmark]: Toolchain (without parser) took 42257.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 959.0 MB in the beginning and 967.2 MB in the end (delta: -8.1 MB). Peak memory consumption was 125.6 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:54,755 INFO L168 Benchmark]: CDTParser took 0.27 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. [2019-12-08 15:49:54,757 INFO L168 Benchmark]: CACSL2BoogieTranslator took 530.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -164.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:54,757 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.62 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. [2019-12-08 15:49:54,758 INFO L168 Benchmark]: Boogie Preprocessor took 100.87 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: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:54,759 INFO L168 Benchmark]: RCFGBuilder took 38495.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:54,759 INFO L168 Benchmark]: TraceAbstraction took 2949.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 973.8 MB in the end (delta: 69.4 MB). Peak memory consumption was 69.4 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:54,760 INFO L168 Benchmark]: Witness Printer took 91.05 ms. Allocated memory is still 1.2 GB. Free memory was 973.8 MB in the beginning and 967.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:54,765 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 530.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -164.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 83.62 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 100.87 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: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 38495.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2949.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 973.8 MB in the end (delta: 69.4 MB). Peak memory consumption was 69.4 MB. Max. memory is 11.5 GB. * Witness Printer took 91.05 ms. Allocated memory is still 1.2 GB. Free memory was 973.8 MB in the beginning and 967.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 258]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L251] double x = -1.0 / 0.0; [L252] double y = -1.0 / 0.0; [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L254] double res = __ieee754_atan2(y, x); [L257] COND TRUE res != -3 * pi_o_4 VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L258] __VERIFIER_error() VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 1 error locations. Result: UNSAFE, OverallTime: 2.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 161 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred 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, 1.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 162 SizeOfPredicates, 0 NumberOfNonLiveVariables, 100 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...