./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0686a.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_0686a.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 6325aa1d97dea13f4033dc32ee324acae8808fcc ......................................................................................................................................................................................................................................................................................................................... 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_0686a.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 6325aa1d97dea13f4033dc32ee324acae8808fcc ........................................................................................................................................................................................................................................................................................................................................ 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 15:49:06,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-08 15:49:06,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-08 15:49:06,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-08 15:49:06,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-08 15:49:06,301 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-08 15:49:06,303 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-08 15:49:06,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-08 15:49:06,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-08 15:49:06,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-08 15:49:06,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-08 15:49:06,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-08 15:49:06,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-08 15:49:06,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-08 15:49:06,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-08 15:49:06,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-08 15:49:06,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-08 15:49:06,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-08 15:49:06,317 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-08 15:49:06,319 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-08 15:49:06,321 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-08 15:49:06,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-08 15:49:06,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-08 15:49:06,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-08 15:49:06,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-08 15:49:06,327 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-08 15:49:06,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-08 15:49:06,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-08 15:49:06,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-08 15:49:06,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-08 15:49:06,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-08 15:49:06,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-08 15:49:06,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-08 15:49:06,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-08 15:49:06,336 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-08 15:49:06,338 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-08 15:49:06,339 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-08 15:49:06,340 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-08 15:49:06,341 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-08 15:49:06,342 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-08 15:49:06,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-08 15:49:06,347 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-08 15:49:06,367 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-08 15:49:06,367 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-08 15:49:06,369 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-08 15:49:06,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-08 15:49:06,370 INFO L138 SettingsManager]: * Use SBE=true [2019-12-08 15:49:06,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-08 15:49:06,370 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-08 15:49:06,371 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-08 15:49:06,371 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-08 15:49:06,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-08 15:49:06,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-08 15:49:06,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-08 15:49:06,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-08 15:49:06,372 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-08 15:49:06,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-08 15:49:06,373 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-08 15:49:06,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-08 15:49:06,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-08 15:49:06,374 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-08 15:49:06,374 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-08 15:49:06,374 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-08 15:49:06,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-08 15:49:06,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-08 15:49:06,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-08 15:49:06,376 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-08 15:49:06,376 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-08 15:49:06,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-08 15:49:06,377 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-08 15:49:06,377 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-08 15:49:06,377 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 -> 6325aa1d97dea13f4033dc32ee324acae8808fcc [2019-12-08 15:49:06,718 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-08 15:49:06,731 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-08 15:49:06,735 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-08 15:49:06,737 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-08 15:49:06,737 INFO L275 PluginConnector]: CDTParser initialized [2019-12-08 15:49:06,738 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0686a.c [2019-12-08 15:49:06,800 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8869371cd/f98e2a3651624b678ac46dbcc85763d0/FLAG4fb0cb8ca [2019-12-08 15:49:07,281 INFO L306 CDTParser]: Found 1 translation units. [2019-12-08 15:49:07,281 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0686a.c [2019-12-08 15:49:07,292 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8869371cd/f98e2a3651624b678ac46dbcc85763d0/FLAG4fb0cb8ca [2019-12-08 15:49:07,621 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8869371cd/f98e2a3651624b678ac46dbcc85763d0 [2019-12-08 15:49:07,625 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-08 15:49:07,626 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-08 15:49:07,628 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-08 15:49:07,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-08 15:49:07,631 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-08 15:49:07,632 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:49:07" (1/1) ... [2019-12-08 15:49:07,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45e7c391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:07, skipping insertion in model container [2019-12-08 15:49:07,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:49:07" (1/1) ... [2019-12-08 15:49:07,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-08 15:49:07,696 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-08 15:49:08,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:49:08,046 INFO L203 MainTranslator]: Completed pre-run [2019-12-08 15:49:08,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:49:08,132 INFO L208 MainTranslator]: Completed translation [2019-12-08 15:49:08,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:08 WrapperNode [2019-12-08 15:49:08,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-08 15:49:08,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-08 15:49:08,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-08 15:49:08,134 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-08 15:49:08,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:08" (1/1) ... [2019-12-08 15:49:08,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:08" (1/1) ... [2019-12-08 15:49:08,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-08 15:49:08,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-08 15:49:08,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-08 15:49:08,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-08 15:49:08,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:08" (1/1) ... [2019-12-08 15:49:08,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:08" (1/1) ... [2019-12-08 15:49:08,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:08" (1/1) ... [2019-12-08 15:49:08,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:08" (1/1) ... [2019-12-08 15:49:08,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:08" (1/1) ... [2019-12-08 15:49:08,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:08" (1/1) ... [2019-12-08 15:49:08,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:08" (1/1) ... [2019-12-08 15:49:08,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-08 15:49:08,311 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-08 15:49:08,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-08 15:49:08,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-08 15:49:08,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-08 15:49:08,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-08 15:49:08,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-08 15:49:08,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-08 15:49:08,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-08 15:49:08,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-08 15:49:08,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-08 15:49:08,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-08 15:49:08,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-12-08 15:49:08,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-08 15:49:09,401 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-08 15:49:09,401 INFO L287 CfgBuilder]: Removed 44 assume(true) statements. [2019-12-08 15:49:09,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:49:09 BoogieIcfgContainer [2019-12-08 15:49:09,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-08 15:49:09,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-08 15:49:09,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-08 15:49:09,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-08 15:49:09,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 03:49:07" (1/3) ... [2019-12-08 15:49:09,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1705fbe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:49:09, skipping insertion in model container [2019-12-08 15:49:09,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:08" (2/3) ... [2019-12-08 15:49:09,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1705fbe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:49:09, skipping insertion in model container [2019-12-08 15:49:09,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:49:09" (3/3) ... [2019-12-08 15:49:09,411 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0686a.c [2019-12-08 15:49:09,419 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-08 15:49:09,426 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-08 15:49:09,437 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-08 15:49:09,457 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-08 15:49:09,457 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-08 15:49:09,457 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-08 15:49:09,457 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-08 15:49:09,457 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-08 15:49:09,458 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-08 15:49:09,458 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-08 15:49:09,458 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-08 15:49:09,473 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-12-08 15:49:09,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-08 15:49:09,480 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:49:09,480 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:49:09,481 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:49:09,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:49:09,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1264059097, now seen corresponding path program 1 times [2019-12-08 15:49:09,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-08 15:49:09,493 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973102418] [2019-12-08 15:49:09,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-08 15:49:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-08 15:49:09,627 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 15:49:09,628 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973102418] [2019-12-08 15:49:09,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-08 15:49:09,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-08 15:49:09,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938114916] [2019-12-08 15:49:09,635 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-08 15:49:09,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-08 15:49:09,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-08 15:49:09,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-08 15:49:09,653 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2019-12-08 15:49:09,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-08 15:49:09,687 INFO L93 Difference]: Finished difference Result 224 states and 378 transitions. [2019-12-08 15:49:09,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-08 15:49:09,689 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-08 15:49:09,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-08 15:49:09,702 INFO L225 Difference]: With dead ends: 224 [2019-12-08 15:49:09,702 INFO L226 Difference]: Without dead ends: 110 [2019-12-08 15:49:09,706 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 15:49:09,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-12-08 15:49:09,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-12-08 15:49:09,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-12-08 15:49:09,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2019-12-08 15:49:09,752 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 10 [2019-12-08 15:49:09,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-08 15:49:09,753 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2019-12-08 15:49:09,753 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-08 15:49:09,753 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2019-12-08 15:49:09,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-08 15:49:09,754 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:49:09,754 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:49:09,754 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:49:09,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:49:09,755 INFO L82 PathProgramCache]: Analyzing trace with hash -925329470, now seen corresponding path program 1 times [2019-12-08 15:49:09,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-08 15:49:09,756 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942318977] [2019-12-08 15:49:09,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-08 15:49:09,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-08 15:49:09,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-08 15:49:09,945 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-08 15:49:09,945 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-08 15:49:09,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 03:49:09 BoogieIcfgContainer [2019-12-08 15:49:09,999 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-08 15:49:10,000 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-08 15:49:10,000 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-08 15:49:10,000 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-08 15:49:10,001 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:49:09" (3/4) ... [2019-12-08 15:49:10,004 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-08 15:49:10,004 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-08 15:49:10,006 INFO L168 Benchmark]: Toolchain (without parser) took 2379.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 956.3 MB in the beginning and 1.0 GB in the end (delta: -49.0 MB). Peak memory consumption was 66.9 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:10,007 INFO L168 Benchmark]: CDTParser took 0.28 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. [2019-12-08 15:49:10,008 INFO L168 Benchmark]: CACSL2BoogieTranslator took 505.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -149.3 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:10,009 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:10,010 INFO L168 Benchmark]: Boogie Preprocessor took 98.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:10,010 INFO L168 Benchmark]: RCFGBuilder took 1091.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 58.3 MB). Peak memory consumption was 58.3 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:10,011 INFO L168 Benchmark]: TraceAbstraction took 595.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:10,012 INFO L168 Benchmark]: Witness Printer took 4.28 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-08 15:49:10,016 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 505.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -149.3 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 98.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1091.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 58.3 MB). Peak memory consumption was 58.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 595.82 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.28 ms. Allocated memory is still 1.1 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: 256]: 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 255. 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] [L250] double x = 1.0 / 0.0; [L251] 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] [L253] double res = __ieee754_atan2(y, x); [L255] COND TRUE res != 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] [L256] __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: 0.4s, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-c1f4b5c [2019-12-08 15:49:11,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-08 15:49:11,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-08 15:49:11,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-12-08 15:49:11,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-08 15:49:11,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-08 15:49:11,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-08 15:49:11,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-08 15:49:11,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-08 15:49:11,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-08 15:49:11,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-08 15:49:11,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-08 15:49:11,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-08 15:49:11,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-08 15:49:11,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-08 15:49:11,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-08 15:49:11,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-08 15:49:11,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-08 15:49:11,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-08 15:49:11,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-08 15:49:11,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-08 15:49:11,907 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-08 15:49:11,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-08 15:49:11,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-08 15:49:11,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-08 15:49:11,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-08 15:49:11,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-08 15:49:11,915 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-08 15:49:11,916 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-08 15:49:11,941 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-08 15:49:11,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-08 15:49:11,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-08 15:49:11,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-08 15:49:11,944 INFO L138 SettingsManager]: * Use SBE=true [2019-12-08 15:49:11,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-08 15:49:11,944 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-08 15:49:11,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-08 15:49:11,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-08 15:49:11,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-08 15:49:11,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-08 15:49:11,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-08 15:49:11,946 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-08 15:49:11,947 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-08 15:49:11,947 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-08 15:49:11,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-08 15:49:11,947 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-08 15:49:11,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-08 15:49:11,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-08 15:49:11,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-08 15:49:11,948 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-08 15:49:11,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-08 15:49:11,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-08 15:49:11,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-08 15:49:11,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-08 15:49:11,949 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-08 15:49:11,949 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-08 15:49:11,950 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-08 15:49:11,950 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-08 15:49:11,950 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-08 15:49:11,950 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-08 15:49:11,950 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 -> 6325aa1d97dea13f4033dc32ee324acae8808fcc [2019-12-08 15:49:12,324 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-08 15:49:12,338 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-08 15:49:12,343 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-08 15:49:12,345 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-08 15:49:12,346 INFO L275 PluginConnector]: CDTParser initialized [2019-12-08 15:49:12,347 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0686a.c [2019-12-08 15:49:12,408 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/295a5cb03/117ff2e3ae60483c8850f96452ed18c1/FLAGd4ceb17af [2019-12-08 15:49:12,910 INFO L306 CDTParser]: Found 1 translation units. [2019-12-08 15:49:12,914 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0686a.c [2019-12-08 15:49:12,929 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/295a5cb03/117ff2e3ae60483c8850f96452ed18c1/FLAGd4ceb17af [2019-12-08 15:49:13,278 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/295a5cb03/117ff2e3ae60483c8850f96452ed18c1 [2019-12-08 15:49:13,282 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-08 15:49:13,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-08 15:49:13,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-08 15:49:13,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-08 15:49:13,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-08 15:49:13,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:49:13" (1/1) ... [2019-12-08 15:49:13,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dc73143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:13, skipping insertion in model container [2019-12-08 15:49:13,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:49:13" (1/1) ... [2019-12-08 15:49:13,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-08 15:49:13,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-08 15:49:13,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:49:13,684 INFO L203 MainTranslator]: Completed pre-run [2019-12-08 15:49:13,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:49:13,822 INFO L208 MainTranslator]: Completed translation [2019-12-08 15:49:13,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:13 WrapperNode [2019-12-08 15:49:13,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-08 15:49:13,824 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-08 15:49:13,824 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-08 15:49:13,824 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-08 15:49:13,833 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 15:49:13,852 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 15:49:13,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-08 15:49:13,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-08 15:49:13,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-08 15:49:13,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-08 15:49:13,936 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 15:49:13,936 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 15:49:13,959 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 15:49:13,960 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 15:49:14,015 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 15:49:14,039 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 15:49:14,043 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 15:49:14,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-08 15:49:14,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-08 15:49:14,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-08 15:49:14,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-08 15:49:14,053 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 15:49:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-08 15:49:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-08 15:49:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-08 15:49:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-12-08 15:49:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-08 15:49:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-08 15:49:14,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-08 15:49:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-08 15:49:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-08 15:49:52,559 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-08 15:49:52,559 INFO L287 CfgBuilder]: Removed 44 assume(true) statements. [2019-12-08 15:49:52,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:49:52 BoogieIcfgContainer [2019-12-08 15:49:52,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-08 15:49:52,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-08 15:49:52,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-08 15:49:52,565 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-08 15:49:52,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 03:49:13" (1/3) ... [2019-12-08 15:49:52,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf3c10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:49:52, skipping insertion in model container [2019-12-08 15:49:52,566 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 15:49:52,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf3c10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:49:52, skipping insertion in model container [2019-12-08 15:49:52,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:49:52" (3/3) ... [2019-12-08 15:49:52,569 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0686a.c [2019-12-08 15:49:52,578 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-08 15:49:52,587 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-08 15:49:52,598 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-08 15:49:52,619 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-08 15:49:52,619 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-08 15:49:52,619 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-08 15:49:52,620 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-08 15:49:52,620 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-08 15:49:52,620 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-08 15:49:52,620 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-08 15:49:52,620 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-08 15:49:52,636 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-12-08 15:49:52,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-08 15:49:52,642 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:49:52,643 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:49:52,643 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:49:52,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:49:52,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1264059097, now seen corresponding path program 1 times [2019-12-08 15:49:52,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-08 15:49:52,659 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1414910497] [2019-12-08 15:49:52,659 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 15:49:53,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-08 15:49:53,069 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-08 15:49:53,073 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-08 15:49:53,086 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 15:49:53,086 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-08 15:49:53,089 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 15:49:53,090 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1414910497] [2019-12-08 15:49:53,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-08 15:49:53,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-08 15:49:53,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860659387] [2019-12-08 15:49:53,096 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-08 15:49:53,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-08 15:49:53,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-08 15:49:53,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-08 15:49:53,109 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2019-12-08 15:49:53,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-08 15:49:53,139 INFO L93 Difference]: Finished difference Result 224 states and 378 transitions. [2019-12-08 15:49:53,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-08 15:49:53,141 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-08 15:49:53,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-08 15:49:53,155 INFO L225 Difference]: With dead ends: 224 [2019-12-08 15:49:53,155 INFO L226 Difference]: Without dead ends: 110 [2019-12-08 15:49:53,159 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 15:49:53,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-12-08 15:49:53,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-12-08 15:49:53,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-12-08 15:49:53,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2019-12-08 15:49:53,209 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 10 [2019-12-08 15:49:53,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-08 15:49:53,209 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2019-12-08 15:49:53,210 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-08 15:49:53,210 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2019-12-08 15:49:53,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-08 15:49:53,211 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:49:53,211 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:49:53,425 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-08 15:49:53,426 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:49:53,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:49:53,427 INFO L82 PathProgramCache]: Analyzing trace with hash -925329470, now seen corresponding path program 1 times [2019-12-08 15:49:53,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-08 15:49:53,429 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [758162756] [2019-12-08 15:49:53,429 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 15:49:54,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-08 15:49:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-08 15:49:55,077 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-08 15:49:55,078 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-08 15:49:55,280 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-08 15:49:55,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 03:49:55 BoogieIcfgContainer [2019-12-08 15:49:55,341 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-08 15:49:55,342 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-08 15:49:55,342 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-08 15:49:55,342 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-08 15:49:55,343 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:49:52" (3/4) ... [2019-12-08 15:49:55,345 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-08 15:49:55,437 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-12-08 15:49:55,437 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-08 15:49:55,440 INFO L168 Benchmark]: Toolchain (without parser) took 42156.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 957.7 MB in the beginning and 979.4 MB in the end (delta: -21.7 MB). Peak memory consumption was 129.8 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:55,440 INFO L168 Benchmark]: CDTParser took 0.26 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 15:49:55,446 INFO L168 Benchmark]: CACSL2BoogieTranslator took 538.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -176.7 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:55,448 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.74 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. [2019-12-08 15:49:55,449 INFO L168 Benchmark]: Boogie Preprocessor took 129.29 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:55,449 INFO L168 Benchmark]: RCFGBuilder took 38509.60 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: 74.8 MB). Peak memory consumption was 74.8 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:55,450 INFO L168 Benchmark]: TraceAbstraction took 2779.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 985.8 MB in the end (delta: 67.3 MB). Peak memory consumption was 67.3 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:55,450 INFO L168 Benchmark]: Witness Printer took 95.38 ms. Allocated memory is still 1.2 GB. Free memory was 985.8 MB in the beginning and 979.4 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:55,457 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 538.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -176.7 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 97.74 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. * Boogie Preprocessor took 129.29 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 38509.60 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: 74.8 MB). Peak memory consumption was 74.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2779.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 985.8 MB in the end (delta: 67.3 MB). Peak memory consumption was 67.3 MB. Max. memory is 11.5 GB. * Witness Printer took 95.38 ms. Allocated memory is still 1.2 GB. Free memory was 985.8 MB in the beginning and 979.4 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 256]: 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] [L250] double x = 1.0 / 0.0; [L251] 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] [L253] double res = __ieee754_atan2(y, x); [L255] COND TRUE res != 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] [L256] __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: 2.6s, 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...