./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1210.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1210.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 4632d05eeeec8083fb0c38c2d70eb822a2624ecb .......................................................................................................................................................................................................................................................................................................................................... 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_1210.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 4632d05eeeec8083fb0c38c2d70eb822a2624ecb ................................................................................................................................................................................................................................................................................................................................................................................................................... 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-f470102 [2019-11-28 16:49:53,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:49:53,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:49:53,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:49:53,305 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:49:53,307 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:49:53,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:49:53,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:49:53,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:49:53,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:49:53,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:49:53,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:49:53,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:49:53,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:49:53,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:49:53,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:49:53,339 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:49:53,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:49:53,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:49:53,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:49:53,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:49:53,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:49:53,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:49:53,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:49:53,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:49:53,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:49:53,364 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:49:53,365 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:49:53,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:49:53,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:49:53,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:49:53,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:49:53,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:49:53,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:49:53,370 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:49:53,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:49:53,371 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:49:53,371 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:49:53,371 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:49:53,372 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:49:53,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:49:53,374 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 16:49:53,388 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:49:53,388 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:49:53,391 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:49:53,391 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:49:53,391 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:49:53,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:49:53,392 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:49:53,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 16:49:53,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:49:53,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:49:53,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:49:53,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:49:53,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:49:53,393 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:49:53,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:49:53,394 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:49:53,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:49:53,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:49:53,395 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:49:53,395 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:49:53,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:49:53,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:49:53,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:49:53,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:49:53,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:49:53,396 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 16:49:53,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 16:49:53,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:49:53,397 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:49:53,397 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 -> 4632d05eeeec8083fb0c38c2d70eb822a2624ecb [2019-11-28 16:49:53,716 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:49:53,729 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:49:53,733 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:49:53,735 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:49:53,735 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:49:53,736 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2019-11-28 16:49:53,798 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1845a4fa3/9d1244885d384654ab1dbf58c63063b2/FLAG3c8df0c35 [2019-11-28 16:49:54,244 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:49:54,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2019-11-28 16:49:54,253 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1845a4fa3/9d1244885d384654ab1dbf58c63063b2/FLAG3c8df0c35 [2019-11-28 16:49:54,637 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1845a4fa3/9d1244885d384654ab1dbf58c63063b2 [2019-11-28 16:49:54,641 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:49:54,642 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:49:54,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:49:54,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:49:54,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:49:54,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:49:54" (1/1) ... [2019-11-28 16:49:54,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69e4995b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:54, skipping insertion in model container [2019-11-28 16:49:54,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:49:54" (1/1) ... [2019-11-28 16:49:54,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:49:54,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:49:55,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:49:55,051 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:49:55,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:49:55,223 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:49:55,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:55 WrapperNode [2019-11-28 16:49:55,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:49:55,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:49:55,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:49:55,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:49:55,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:55" (1/1) ... [2019-11-28 16:49:55,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:55" (1/1) ... [2019-11-28 16:49:55,297 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:49:55,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:49:55,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:49:55,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:49:55,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:55" (1/1) ... [2019-11-28 16:49:55,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:55" (1/1) ... [2019-11-28 16:49:55,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:55" (1/1) ... [2019-11-28 16:49:55,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:55" (1/1) ... [2019-11-28 16:49:55,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:55" (1/1) ... [2019-11-28 16:49:55,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:55" (1/1) ... [2019-11-28 16:49:55,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:55" (1/1) ... [2019-11-28 16:49:55,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:49:55,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:49:55,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:49:55,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:49:55,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:49:55,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-28 16:49:55,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 16:49:55,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-28 16:49:55,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:49:55,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:49:55,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 16:49:55,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 16:49:55,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 16:49:55,946 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:49:55,947 INFO L287 CfgBuilder]: Removed 30 assume(true) statements. [2019-11-28 16:49:55,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:55 BoogieIcfgContainer [2019-11-28 16:49:55,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:49:55,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:49:55,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:49:55,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:49:55,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:49:54" (1/3) ... [2019-11-28 16:49:55,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ea6dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:49:55, skipping insertion in model container [2019-11-28 16:49:55,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:49:55" (2/3) ... [2019-11-28 16:49:55,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ea6dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:49:55, skipping insertion in model container [2019-11-28 16:49:55,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:55" (3/3) ... [2019-11-28 16:49:55,957 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2019-11-28 16:49:55,967 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:49:55,975 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 16:49:55,989 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 16:49:56,019 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:49:56,020 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:49:56,020 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:49:56,020 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:49:56,021 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:49:56,021 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:49:56,021 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:49:56,022 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:49:56,044 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2019-11-28 16:49:56,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-28 16:49:56,055 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:49:56,056 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:49:56,056 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:49:56,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:49:56,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1560975081, now seen corresponding path program 1 times [2019-11-28 16:49:56,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:49:56,075 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337036085] [2019-11-28 16:49:56,075 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:49:56,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:49:56,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:49:56,199 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337036085] [2019-11-28 16:49:56,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:49:56,200 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 16:49:56,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315596469] [2019-11-28 16:49:56,208 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 16:49:56,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 16:49:56,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 16:49:56,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 16:49:56,222 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2019-11-28 16:49:56,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:49:56,244 INFO L93 Difference]: Finished difference Result 86 states and 138 transitions. [2019-11-28 16:49:56,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 16:49:56,246 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-11-28 16:49:56,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:49:56,256 INFO L225 Difference]: With dead ends: 86 [2019-11-28 16:49:56,257 INFO L226 Difference]: Without dead ends: 41 [2019-11-28 16:49:56,260 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 16:49:56,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-28 16:49:56,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-11-28 16:49:56,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-11-28 16:49:56,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2019-11-28 16:49:56,298 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 13 [2019-11-28 16:49:56,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:49:56,298 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2019-11-28 16:49:56,298 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 16:49:56,299 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2019-11-28 16:49:56,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 16:49:56,300 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:49:56,300 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:49:56,300 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:49:56,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:49:56,301 INFO L82 PathProgramCache]: Analyzing trace with hash -11965906, now seen corresponding path program 1 times [2019-11-28 16:49:56,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:49:56,301 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703854329] [2019-11-28 16:49:56,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:49:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:49:56,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:49:56,413 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703854329] [2019-11-28 16:49:56,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:49:56,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 16:49:56,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563492606] [2019-11-28 16:49:56,417 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 16:49:56,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 16:49:56,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 16:49:56,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 16:49:56,420 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 3 states. [2019-11-28 16:49:56,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:49:56,458 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2019-11-28 16:49:56,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 16:49:56,459 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-11-28 16:49:56,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:49:56,460 INFO L225 Difference]: With dead ends: 44 [2019-11-28 16:49:56,460 INFO L226 Difference]: Without dead ends: 41 [2019-11-28 16:49:56,463 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 16:49:56,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-28 16:49:56,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-11-28 16:49:56,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-11-28 16:49:56,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2019-11-28 16:49:56,470 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 15 [2019-11-28 16:49:56,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:49:56,470 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2019-11-28 16:49:56,471 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 16:49:56,471 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2019-11-28 16:49:56,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-28 16:49:56,472 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:49:56,472 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:49:56,473 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:49:56,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:49:56,473 INFO L82 PathProgramCache]: Analyzing trace with hash -371067880, now seen corresponding path program 1 times [2019-11-28 16:49:56,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:49:56,474 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931510605] [2019-11-28 16:49:56,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:49:56,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:49:56,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:49:56,662 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 16:49:56,662 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 16:49:56,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:49:56 BoogieIcfgContainer [2019-11-28 16:49:56,702 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:49:56,703 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:49:56,703 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:49:56,704 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:49:56,704 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:55" (3/4) ... [2019-11-28 16:49:56,709 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 16:49:56,709 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:49:56,712 INFO L168 Benchmark]: Toolchain (without parser) took 2068.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -94.0 MB). Peak memory consumption was 46.0 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:56,713 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:49:56,714 INFO L168 Benchmark]: CACSL2BoogieTranslator took 580.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -168.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:56,715 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.29 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:56,716 INFO L168 Benchmark]: Boogie Preprocessor took 40.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:56,717 INFO L168 Benchmark]: RCFGBuilder took 610.68 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:56,718 INFO L168 Benchmark]: TraceAbstraction took 753.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:56,718 INFO L168 Benchmark]: Witness Printer took 6.29 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:49:56,723 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 580.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -168.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 72.29 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.12 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 610.68 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 753.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. * Witness Printer took 6.29 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 116, overapproximation of bitwiseAnd at line 33. Possible FailurePath: [L17] static const double one_modf = 1.0; VAL [one_modf=1] [L116] double x = 0.0 / 0.0; [L117] double iptr; [L20] __int32_t i0, i1, j0; [L21] __uint32_t i; VAL [one_modf=1] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [one_modf=1] [L29] COND TRUE j0 < 20 VAL [one_modf=1] [L30] COND TRUE j0 < 0 VAL [one_modf=1] [L32] ieee_double_shape_type iw_u; [L33] iw_u.parts.msw = (i0 & 0x80000000) [L34] iw_u.parts.lsw = (0) [L35] EXPR iw_u.value [L35] (*iptr) = iw_u.value [L37] return x; VAL [one_modf=1] [L118] double res = modf_double(x, &iptr); [L121] EXPR \read(iptr) [L15] return x != x; VAL [one_modf=1] [L121] isnan_double(iptr) && !isnan_double(res) [L15] return x != x; VAL [one_modf=1] [L121] isnan_double(iptr) && !isnan_double(res) VAL [one_modf=1] [L121] COND TRUE isnan_double(iptr) && !isnan_double(res) [L122] __VERIFIER_error() VAL [one_modf=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 95 SDtfs, 0 SDslu, 40 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 354 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-11-28 16:49:58,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:49:58,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:49:58,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:49:58,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:49:58,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:49:58,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:49:58,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:49:58,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:49:58,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:49:58,823 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:49:58,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:49:58,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:49:58,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:49:58,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:49:58,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:49:58,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:49:58,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:49:58,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:49:58,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:49:58,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:49:58,841 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:49:58,844 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:49:58,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:49:58,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:49:58,852 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:49:58,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:49:58,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:49:58,854 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:49:58,856 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:49:58,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:49:58,858 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:49:58,859 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:49:58,860 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:49:58,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:49:58,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:49:58,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:49:58,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:49:58,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:49:58,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:49:58,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:49:58,874 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-28 16:49:58,899 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:49:58,899 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:49:58,901 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:49:58,902 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:49:58,902 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:49:58,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:49:58,903 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:49:58,903 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:49:58,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:49:58,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:49:58,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:49:58,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:49:58,905 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 16:49:58,906 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 16:49:58,906 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:49:58,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:49:58,906 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:49:58,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:49:58,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:49:58,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:49:58,907 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:49:58,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:49:58,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:49:58,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:49:58,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:49:58,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:49:58,909 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 16:49:58,909 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 16:49:58,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:49:58,909 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:49:58,910 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 16:49:58,910 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 -> 4632d05eeeec8083fb0c38c2d70eb822a2624ecb [2019-11-28 16:49:59,237 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:49:59,255 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:49:59,260 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:49:59,262 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:49:59,263 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:49:59,264 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2019-11-28 16:49:59,339 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d45eee984/e8f07e300a4040bc89dcacf10e40d516/FLAG9b262086a [2019-11-28 16:49:59,804 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:49:59,805 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2019-11-28 16:49:59,813 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d45eee984/e8f07e300a4040bc89dcacf10e40d516/FLAG9b262086a [2019-11-28 16:50:00,189 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d45eee984/e8f07e300a4040bc89dcacf10e40d516 [2019-11-28 16:50:00,192 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:50:00,194 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:50:00,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:50:00,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:50:00,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:50:00,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:50:00" (1/1) ... [2019-11-28 16:50:00,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ea531d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:00, skipping insertion in model container [2019-11-28 16:50:00,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:50:00" (1/1) ... [2019-11-28 16:50:00,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:50:00,245 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:50:00,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:50:00,468 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:50:00,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:50:00,605 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:50:00,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:00 WrapperNode [2019-11-28 16:50:00,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:50:00,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:50:00,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:50:00,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:50:00,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:00" (1/1) ... [2019-11-28 16:50:00,632 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:00" (1/1) ... [2019-11-28 16:50:00,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:50:00,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:50:00,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:50:00,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:50:00,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:00" (1/1) ... [2019-11-28 16:50:00,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:00" (1/1) ... [2019-11-28 16:50:00,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:00" (1/1) ... [2019-11-28 16:50:00,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:00" (1/1) ... [2019-11-28 16:50:00,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:00" (1/1) ... [2019-11-28 16:50:00,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:00" (1/1) ... [2019-11-28 16:50:00,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:00" (1/1) ... [2019-11-28 16:50:00,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:50:00,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:50:00,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:50:00,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:50:00,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:50:00,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-28 16:50:00,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-28 16:50:00,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 16:50:00,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-28 16:50:00,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:50:00,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:50:00,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-28 16:50:00,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 16:50:02,031 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:50:02,032 INFO L287 CfgBuilder]: Removed 30 assume(true) statements. [2019-11-28 16:50:02,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:50:02 BoogieIcfgContainer [2019-11-28 16:50:02,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:50:02,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:50:02,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:50:02,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:50:02,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:50:00" (1/3) ... [2019-11-28 16:50:02,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@171375b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:50:02, skipping insertion in model container [2019-11-28 16:50:02,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:50:00" (2/3) ... [2019-11-28 16:50:02,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@171375b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:50:02, skipping insertion in model container [2019-11-28 16:50:02,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:50:02" (3/3) ... [2019-11-28 16:50:02,042 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2019-11-28 16:50:02,053 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:50:02,061 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 16:50:02,073 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 16:50:02,099 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:50:02,099 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:50:02,100 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:50:02,100 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:50:02,100 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:50:02,101 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:50:02,101 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:50:02,101 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:50:02,117 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2019-11-28 16:50:02,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-28 16:50:02,123 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:50:02,124 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:50:02,124 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:50:02,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:50:02,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1560975081, now seen corresponding path program 1 times [2019-11-28 16:50:02,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:50:02,139 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [110711475] [2019-11-28 16:50:02,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-28 16:50:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:50:02,273 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-28 16:50:02,279 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:50:02,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:50:02,295 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:50:02,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:50:02,302 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [110711475] [2019-11-28 16:50:02,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:50:02,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-28 16:50:02,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745160716] [2019-11-28 16:50:02,311 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 16:50:02,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:50:02,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 16:50:02,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 16:50:02,329 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2019-11-28 16:50:02,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:50:02,368 INFO L93 Difference]: Finished difference Result 86 states and 138 transitions. [2019-11-28 16:50:02,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 16:50:02,370 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-11-28 16:50:02,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:50:02,388 INFO L225 Difference]: With dead ends: 86 [2019-11-28 16:50:02,389 INFO L226 Difference]: Without dead ends: 41 [2019-11-28 16:50:02,393 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 16:50:02,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-28 16:50:02,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-11-28 16:50:02,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-11-28 16:50:02,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2019-11-28 16:50:02,446 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 13 [2019-11-28 16:50:02,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:50:02,446 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2019-11-28 16:50:02,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 16:50:02,447 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2019-11-28 16:50:02,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-28 16:50:02,449 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:50:02,450 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:50:02,664 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 16:50:02,665 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:50:02,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:50:02,665 INFO L82 PathProgramCache]: Analyzing trace with hash -11965906, now seen corresponding path program 1 times [2019-11-28 16:50:02,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:50:02,667 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [277047081] [2019-11-28 16:50:02,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-28 16:50:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:50:02,809 INFO L264 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 16:50:02,813 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:50:02,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:50:02,973 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:50:03,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:50:03,142 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [277047081] [2019-11-28 16:50:03,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:50:03,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-28 16:50:03,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829404315] [2019-11-28 16:50:03,145 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 16:50:03,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:50:03,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 16:50:03,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-28 16:50:03,146 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 8 states. [2019-11-28 16:50:03,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:50:03,984 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2019-11-28 16:50:03,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 16:50:03,995 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-11-28 16:50:03,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:50:03,996 INFO L225 Difference]: With dead ends: 48 [2019-11-28 16:50:03,996 INFO L226 Difference]: Without dead ends: 19 [2019-11-28 16:50:03,997 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-11-28 16:50:03,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-28 16:50:04,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-28 16:50:04,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-28 16:50:04,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-11-28 16:50:04,003 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 15 [2019-11-28 16:50:04,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:50:04,003 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-11-28 16:50:04,004 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 16:50:04,004 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-11-28 16:50:04,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 16:50:04,004 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:50:04,005 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:50:04,218 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 16:50:04,219 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:50:04,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:50:04,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1834889353, now seen corresponding path program 1 times [2019-11-28 16:50:04,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:50:04,222 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1845875163] [2019-11-28 16:50:04,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-28 16:50:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:50:04,619 INFO L264 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 16:50:04,621 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:50:04,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:50:04,627 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:50:04,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:50:04,629 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1845875163] [2019-11-28 16:50:04,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:50:04,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-28 16:50:04,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477574061] [2019-11-28 16:50:04,631 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 16:50:04,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:50:04,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 16:50:04,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 16:50:04,632 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 3 states. [2019-11-28 16:50:04,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:50:04,667 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2019-11-28 16:50:04,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 16:50:04,668 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-28 16:50:04,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:50:04,669 INFO L225 Difference]: With dead ends: 22 [2019-11-28 16:50:04,669 INFO L226 Difference]: Without dead ends: 19 [2019-11-28 16:50:04,670 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 16:50:04,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-28 16:50:04,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-28 16:50:04,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-28 16:50:04,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2019-11-28 16:50:04,675 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 17 [2019-11-28 16:50:04,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:50:04,675 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2019-11-28 16:50:04,675 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 16:50:04,676 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2019-11-28 16:50:04,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-28 16:50:04,676 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:50:04,677 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:50:04,880 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-28 16:50:04,880 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:50:04,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:50:04,881 INFO L82 PathProgramCache]: Analyzing trace with hash 1046870301, now seen corresponding path program 1 times [2019-11-28 16:50:04,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:50:04,884 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015012151] [2019-11-28 16:50:04,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-28 16:50:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:50:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:50:05,907 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-28 16:50:05,907 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 16:50:06,108 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-28 16:50:06,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:50:06 BoogieIcfgContainer [2019-11-28 16:50:06,166 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:50:06,167 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:50:06,167 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:50:06,167 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:50:06,168 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:50:02" (3/4) ... [2019-11-28 16:50:06,170 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 16:50:06,230 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 16:50:06,231 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:50:06,233 INFO L168 Benchmark]: Toolchain (without parser) took 6038.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 76.0 MB). Free memory was 957.7 MB in the beginning and 906.5 MB in the end (delta: 51.2 MB). Peak memory consumption was 127.2 MB. Max. memory is 11.5 GB. [2019-11-28 16:50:06,234 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:50:06,235 INFO L168 Benchmark]: CACSL2BoogieTranslator took 411.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 76.0 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -106.9 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:50:06,235 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.91 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:50:06,236 INFO L168 Benchmark]: Boogie Preprocessor took 78.19 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-28 16:50:06,237 INFO L168 Benchmark]: RCFGBuilder took 1287.48 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: 35.6 MB). Peak memory consumption was 35.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:50:06,237 INFO L168 Benchmark]: TraceAbstraction took 4131.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 906.5 MB in the end (delta: 115.5 MB). Peak memory consumption was 115.5 MB. Max. memory is 11.5 GB. [2019-11-28 16:50:06,238 INFO L168 Benchmark]: Witness Printer took 64.29 ms. Allocated memory is still 1.1 GB. Free memory is still 906.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:50:06,242 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 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 411.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 76.0 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -106.9 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.91 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 78.19 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1287.48 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: 35.6 MB). Peak memory consumption was 35.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4131.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 906.5 MB in the end (delta: 115.5 MB). Peak memory consumption was 115.5 MB. Max. memory is 11.5 GB. * Witness Printer took 64.29 ms. Allocated memory is still 1.1 GB. Free memory is still 906.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 122]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] static const double one_modf = 1.0; VAL [one_modf=1.0] [L116] double x = 0.0 / 0.0; [L117] double iptr; [L20] __int32_t i0, i1, j0; [L21] __uint32_t i; VAL [one_modf=1.0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [one_modf=1.0] [L29] COND FALSE !(j0 < 20) VAL [one_modf=1.0] [L65] COND TRUE j0 > 51 [L66] __uint32_t high; [L67] *iptr = x * one_modf VAL [one_modf=1.0] [L69] ieee_double_shape_type gh_u; [L70] gh_u.value = (x) [L71] EXPR gh_u.parts.msw [L71] (high) = gh_u.parts.msw [L74] ieee_double_shape_type iw_u; [L75] iw_u.parts.msw = (high & 0x80000000) [L76] iw_u.parts.lsw = (0) [L77] EXPR iw_u.value [L77] (x) = iw_u.value [L79] return x; VAL [one_modf=1.0] [L118] double res = modf_double(x, &iptr); [L121] EXPR \read(iptr) [L15] return x != x; VAL [one_modf=1.0] [L121] isnan_double(iptr) && !isnan_double(res) [L15] return x != x; VAL [one_modf=1.0] [L121] isnan_double(iptr) && !isnan_double(res) VAL [one_modf=1.0] [L121] COND TRUE isnan_double(iptr) && !isnan_double(res) [L122] __VERIFIER_error() VAL [one_modf=1.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Result: UNSAFE, OverallTime: 4.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 82 SDtfs, 50 SDslu, 35 SDs, 0 SdLazy, 18 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 84 ConstructedInterpolants, 5 QuantifiedInterpolants, 2708 SizeOfPredicates, 8 NumberOfNonLiveVariables, 164 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...