./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer --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 0d806ca1b262345211037ccd3e4a22cabffa047b ......................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer --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 0d806ca1b262345211037ccd3e4a22cabffa047b ............................................................................................................................................................................................................................................................................................................................................................................................................. 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 [2019-12-07 13:45:28,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:45:28,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:45:28,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:45:28,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:45:28,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:45:28,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:45:28,525 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:45:28,527 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:45:28,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:45:28,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:45:28,528 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:45:28,529 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:45:28,529 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:45:28,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:45:28,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:45:28,531 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:45:28,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:45:28,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:45:28,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:45:28,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:45:28,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:45:28,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:45:28,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:45:28,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:45:28,539 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:45:28,540 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:45:28,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:45:28,540 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:45:28,541 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:45:28,541 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:45:28,541 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:45:28,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:45:28,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:45:28,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:45:28,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:45:28,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:45:28,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:45:28,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:45:28,544 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:45:28,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:45:28,545 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 13:45:28,554 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:45:28,555 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:45:28,555 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 13:45:28,556 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 13:45:28,556 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 13:45:28,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:45:28,556 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:45:28,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:45:28,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:45:28,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:45:28,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:45:28,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:45:28,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:45:28,557 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:45:28,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:45:28,557 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:45:28,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:45:28,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:45:28,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:45:28,558 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:45:28,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:45:28,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:45:28,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:45:28,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:45:28,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:45:28,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 13:45:28,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 13:45:28,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:45:28,559 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:45:28,559 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer 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 -> 0d806ca1b262345211037ccd3e4a22cabffa047b [2019-12-07 13:45:28,665 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:45:28,672 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:45:28,674 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:45:28,675 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:45:28,676 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:45:28,676 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2019-12-07 13:45:28,713 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/data/95d635943/6e9ef3eb42b448cda97fae3ffd45b2b1/FLAGb22fce74a [2019-12-07 13:45:29,166 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:45:29,167 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2019-12-07 13:45:29,171 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/data/95d635943/6e9ef3eb42b448cda97fae3ffd45b2b1/FLAGb22fce74a [2019-12-07 13:45:29,180 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/data/95d635943/6e9ef3eb42b448cda97fae3ffd45b2b1 [2019-12-07 13:45:29,182 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:45:29,183 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:45:29,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:45:29,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:45:29,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:45:29,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:45:29" (1/1) ... [2019-12-07 13:45:29,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21a99e56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:45:29, skipping insertion in model container [2019-12-07 13:45:29,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:45:29" (1/1) ... [2019-12-07 13:45:29,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:45:29,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:45:29,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:45:29,360 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:45:29,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:45:29,398 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:45:29,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:45:29 WrapperNode [2019-12-07 13:45:29,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:45:29,399 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:45:29,399 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:45:29,399 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:45:29,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:45:29" (1/1) ... [2019-12-07 13:45:29,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:45:29" (1/1) ... [2019-12-07 13:45:29,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:45:29,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:45:29,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:45:29,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:45:29,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:45:29" (1/1) ... [2019-12-07 13:45:29,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:45:29" (1/1) ... [2019-12-07 13:45:29,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:45:29" (1/1) ... [2019-12-07 13:45:29,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:45:29" (1/1) ... [2019-12-07 13:45:29,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:45:29" (1/1) ... [2019-12-07 13:45:29,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:45:29" (1/1) ... [2019-12-07 13:45:29,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:45:29" (1/1) ... [2019-12-07 13:45:29,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:45:29,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:45:29,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:45:29,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:45:29,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:45:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/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 [2019-12-07 13:45:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 13:45:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 13:45:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 13:45:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:45:29,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:45:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 13:45:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:45:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 13:45:29,669 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:45:29,669 INFO L287 CfgBuilder]: Removed 10 assume(true) statements. [2019-12-07 13:45:29,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:45:29 BoogieIcfgContainer [2019-12-07 13:45:29,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:45:29,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:45:29,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:45:29,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:45:29,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:45:29" (1/3) ... [2019-12-07 13:45:29,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@769f187c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:45:29, skipping insertion in model container [2019-12-07 13:45:29,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:45:29" (2/3) ... [2019-12-07 13:45:29,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@769f187c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:45:29, skipping insertion in model container [2019-12-07 13:45:29,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:45:29" (3/3) ... [2019-12-07 13:45:29,674 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b.c [2019-12-07 13:45:29,680 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:45:29,684 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 13:45:29,691 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 13:45:29,705 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:45:29,705 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:45:29,705 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:45:29,705 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:45:29,706 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:45:29,706 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:45:29,706 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:45:29,706 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:45:29,715 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-12-07 13:45:29,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 13:45:29,719 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:45:29,720 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:45:29,720 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:45:29,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:45:29,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2019-12-07 13:45:29,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:45:29,731 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282473349] [2019-12-07 13:45:29,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:45:29,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:45:29,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:45:29,805 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282473349] [2019-12-07 13:45:29,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:45:29,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:45:29,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303666571] [2019-12-07 13:45:29,809 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 13:45:29,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:45:29,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 13:45:29,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:45:29,819 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2019-12-07 13:45:29,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:45:29,831 INFO L93 Difference]: Finished difference Result 64 states and 102 transitions. [2019-12-07 13:45:29,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 13:45:29,832 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 13:45:29,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:45:29,839 INFO L225 Difference]: With dead ends: 64 [2019-12-07 13:45:29,839 INFO L226 Difference]: Without dead ends: 30 [2019-12-07 13:45:29,841 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 [2019-12-07 13:45:29,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-07 13:45:29,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-12-07 13:45:29,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-07 13:45:29,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2019-12-07 13:45:29,864 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2019-12-07 13:45:29,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:45:29,864 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2019-12-07 13:45:29,864 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 13:45:29,864 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2019-12-07 13:45:29,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 13:45:29,865 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:45:29,865 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:45:29,865 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:45:29,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:45:29,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2019-12-07 13:45:29,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:45:29,866 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596366145] [2019-12-07 13:45:29,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:45:29,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:45:29,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:45:29,923 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:45:29,923 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 13:45:29,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:45:29 BoogieIcfgContainer [2019-12-07 13:45:29,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:45:29,942 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:45:29,942 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:45:29,942 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:45:29,942 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:45:29" (3/4) ... [2019-12-07 13:45:29,945 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 13:45:29,945 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:45:29,946 INFO L168 Benchmark]: Toolchain (without parser) took 763.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 946.2 MB in the beginning and 1.0 GB in the end (delta: -77.6 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 13:45:29,947 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:45:29,947 INFO L168 Benchmark]: CACSL2BoogieTranslator took 215.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -133.2 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-12-07 13:45:29,948 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.19 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 13:45:29,948 INFO L168 Benchmark]: Boogie Preprocessor took 19.76 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. [2019-12-07 13:45:29,948 INFO L168 Benchmark]: RCFGBuilder took 222.14 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-12-07 13:45:29,949 INFO L168 Benchmark]: TraceAbstraction took 271.42 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: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2019-12-07 13:45:29,949 INFO L168 Benchmark]: Witness Printer took 2.92 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. [2019-12-07 13:45:29,952 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 215.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -133.2 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.19 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.76 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. * RCFGBuilder took 222.14 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 271.42 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: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * Witness Printer took 2.92 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: 96]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 41, overapproximation of bitwiseOr at line 42, overapproximation of bitwiseAnd at line 28, overapproximation of someBinaryDOUBLEComparisonOperation at line 95. Possible FailurePath: [L17] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L91] double x = 0.0; [L20] __int32_t i0, i1, j0; [L21] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [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 [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L29] COND TRUE j0 < 20 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L30] COND FALSE !(j0 < 0) [L41] i = (0x000fffff) >> j0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L42] COND TRUE ((i0 & i) | i1) == 0 [L43] return x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L92] double res = ceil_double(x); [L95] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L96] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 47 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=33occurred 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, 21 NumberOfCodeBlocks, 21 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-f470102 [2019-12-07 13:45:31,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:45:31,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:45:31,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:45:31,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:45:31,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:45:31,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:45:31,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:45:31,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:45:31,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:45:31,321 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:45:31,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:45:31,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:45:31,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:45:31,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:45:31,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:45:31,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:45:31,325 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:45:31,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:45:31,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:45:31,330 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:45:31,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:45:31,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:45:31,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:45:31,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:45:31,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:45:31,334 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:45:31,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:45:31,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:45:31,335 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:45:31,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:45:31,336 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:45:31,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:45:31,337 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:45:31,338 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:45:31,338 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:45:31,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:45:31,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:45:31,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:45:31,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:45:31,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:45:31,340 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 13:45:31,350 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:45:31,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:45:31,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 13:45:31,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 13:45:31,352 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 13:45:31,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:45:31,352 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:45:31,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:45:31,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:45:31,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:45:31,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:45:31,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:45:31,353 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 13:45:31,353 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 13:45:31,353 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:45:31,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:45:31,353 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:45:31,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:45:31,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:45:31,353 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:45:31,354 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:45:31,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:45:31,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:45:31,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:45:31,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:45:31,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:45:31,354 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 13:45:31,354 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 13:45:31,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:45:31,355 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:45:31,355 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 13:45:31,355 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer 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 -> 0d806ca1b262345211037ccd3e4a22cabffa047b [2019-12-07 13:45:31,517 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:45:31,527 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:45:31,530 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:45:31,531 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:45:31,532 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:45:31,532 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2019-12-07 13:45:31,580 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/data/4af92c7b7/4d7baf8b86bf49b3b9fa994788864d69/FLAG9797b5802 [2019-12-07 13:45:32,004 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:45:32,004 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2019-12-07 13:45:32,008 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/data/4af92c7b7/4d7baf8b86bf49b3b9fa994788864d69/FLAG9797b5802 [2019-12-07 13:45:32,358 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/data/4af92c7b7/4d7baf8b86bf49b3b9fa994788864d69 [2019-12-07 13:45:32,361 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:45:32,361 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:45:32,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:45:32,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:45:32,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:45:32,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:45:32" (1/1) ... [2019-12-07 13:45:32,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@440b73fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:45:32, skipping insertion in model container [2019-12-07 13:45:32,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:45:32" (1/1) ... [2019-12-07 13:45:32,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:45:32,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:45:32,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:45:32,494 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:45:32,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:45:32,531 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:45:32,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:45:32 WrapperNode [2019-12-07 13:45:32,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:45:32,532 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:45:32,532 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:45:32,532 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:45:32,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:45:32" (1/1) ... [2019-12-07 13:45:32,545 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:45:32" (1/1) ... [2019-12-07 13:45:32,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:45:32,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:45:32,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:45:32,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:45:32,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:45:32" (1/1) ... [2019-12-07 13:45:32,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:45:32" (1/1) ... [2019-12-07 13:45:32,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:45:32" (1/1) ... [2019-12-07 13:45:32,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:45:32" (1/1) ... [2019-12-07 13:45:32,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:45:32" (1/1) ... [2019-12-07 13:45:32,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:45:32" (1/1) ... [2019-12-07 13:45:32,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:45:32" (1/1) ... [2019-12-07 13:45:32,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:45:32,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:45:32,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:45:32,614 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:45:32,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:45:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/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 [2019-12-07 13:45:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 13:45:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 13:45:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:45:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 13:45:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:45:32,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:45:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 13:45:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 13:45:33,683 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:45:33,683 INFO L287 CfgBuilder]: Removed 10 assume(true) statements. [2019-12-07 13:45:33,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:45:33 BoogieIcfgContainer [2019-12-07 13:45:33,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:45:33,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:45:33,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:45:33,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:45:33,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:45:32" (1/3) ... [2019-12-07 13:45:33,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@282a6ffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:45:33, skipping insertion in model container [2019-12-07 13:45:33,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:45:32" (2/3) ... [2019-12-07 13:45:33,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@282a6ffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:45:33, skipping insertion in model container [2019-12-07 13:45:33,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:45:33" (3/3) ... [2019-12-07 13:45:33,688 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b.c [2019-12-07 13:45:33,694 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:45:33,699 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 13:45:33,706 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 13:45:33,721 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:45:33,721 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:45:33,721 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:45:33,721 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:45:33,721 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:45:33,721 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:45:33,721 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:45:33,722 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:45:33,734 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-12-07 13:45:33,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 13:45:33,738 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:45:33,738 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:45:33,738 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:45:33,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:45:33,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2019-12-07 13:45:33,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 13:45:33,750 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625282044] [2019-12-07 13:45:33,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/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 [2019-12-07 13:45:33,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:45:33,799 INFO L264 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 13:45:33,802 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:45:33,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:45:33,811 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:45:33,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:45:33,814 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [625282044] [2019-12-07 13:45:33,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:45:33,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 13:45:33,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365805084] [2019-12-07 13:45:33,818 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 13:45:33,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 13:45:33,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 13:45:33,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:45:33,832 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2019-12-07 13:45:33,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:45:33,845 INFO L93 Difference]: Finished difference Result 64 states and 102 transitions. [2019-12-07 13:45:33,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 13:45:33,846 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 13:45:33,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:45:33,853 INFO L225 Difference]: With dead ends: 64 [2019-12-07 13:45:33,853 INFO L226 Difference]: Without dead ends: 30 [2019-12-07 13:45:33,855 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:45:33,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-07 13:45:33,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-12-07 13:45:33,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-07 13:45:33,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2019-12-07 13:45:33,886 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2019-12-07 13:45:33,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:45:33,887 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2019-12-07 13:45:33,887 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 13:45:33,887 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2019-12-07 13:45:33,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 13:45:33,888 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:45:33,888 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:45:34,089 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 13:45:34,089 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:45:34,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:45:34,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2019-12-07 13:45:34,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 13:45:34,093 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1500516323] [2019-12-07 13:45:34,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/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 [2019-12-07 13:45:34,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:45:34,193 INFO L264 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 13:45:34,195 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:45:34,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:45:34,257 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:45:34,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:45:34,308 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1500516323] [2019-12-07 13:45:34,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:45:34,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 13:45:34,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570283235] [2019-12-07 13:45:34,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 13:45:34,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 13:45:34,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 13:45:34,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 13:45:34,309 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 8 states. [2019-12-07 13:45:34,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:45:34,635 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2019-12-07 13:45:34,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 13:45:34,636 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-12-07 13:45:34,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:45:34,636 INFO L225 Difference]: With dead ends: 44 [2019-12-07 13:45:34,636 INFO L226 Difference]: Without dead ends: 24 [2019-12-07 13:45:34,637 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-12-07 13:45:34,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-12-07 13:45:34,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 17. [2019-12-07 13:45:34,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-07 13:45:34,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-12-07 13:45:34,640 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 11 [2019-12-07 13:45:34,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:45:34,641 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-12-07 13:45:34,641 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 13:45:34,641 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-12-07 13:45:34,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 13:45:34,641 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:45:34,641 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:45:34,842 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 13:45:34,843 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:45:34,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:45:34,844 INFO L82 PathProgramCache]: Analyzing trace with hash -713684991, now seen corresponding path program 1 times [2019-12-07 13:45:34,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 13:45:34,847 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1634755791] [2019-12-07 13:45:34,847 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/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 [2019-12-07 13:45:34,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:45:34,987 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 13:45:34,988 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:45:35,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:45:35,034 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:45:35,683 WARN L192 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2019-12-07 13:45:35,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:45:35,842 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1634755791] [2019-12-07 13:45:35,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:45:35,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-12-07 13:45:35,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033584677] [2019-12-07 13:45:35,843 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 13:45:35,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 13:45:35,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 13:45:35,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 13:45:35,843 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 6 states. [2019-12-07 13:45:36,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:45:36,212 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2019-12-07 13:45:36,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 13:45:36,219 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-12-07 13:45:36,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:45:36,219 INFO L225 Difference]: With dead ends: 24 [2019-12-07 13:45:36,219 INFO L226 Difference]: Without dead ends: 17 [2019-12-07 13:45:36,220 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 13:45:36,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-07 13:45:36,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-07 13:45:36,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-07 13:45:36,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2019-12-07 13:45:36,222 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 14 [2019-12-07 13:45:36,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:45:36,222 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2019-12-07 13:45:36,223 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 13:45:36,223 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2019-12-07 13:45:36,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 13:45:36,223 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:45:36,223 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:45:36,424 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 13:45:36,425 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:45:36,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:45:36,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1786240041, now seen corresponding path program 1 times [2019-12-07 13:45:36,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 13:45:36,428 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727980102] [2019-12-07 13:45:36,429 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/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 [2019-12-07 13:45:36,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:45:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:45:36,715 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 13:45:36,715 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 13:45:36,916 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 13:45:36,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:45:36 BoogieIcfgContainer [2019-12-07 13:45:36,973 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:45:36,973 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:45:36,973 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:45:36,973 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:45:36,974 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:45:33" (3/4) ... [2019-12-07 13:45:36,975 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 13:45:37,016 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_10a17403-5532-47bb-8128-29a58d8e8666/bin/uautomizer/witness.graphml [2019-12-07 13:45:37,016 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:45:37,017 INFO L168 Benchmark]: Toolchain (without parser) took 4655.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 952.4 MB in the beginning and 980.2 MB in the end (delta: -27.8 MB). Peak memory consumption was 95.9 MB. Max. memory is 11.5 GB. [2019-12-07 13:45:37,018 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:45:37,018 INFO L168 Benchmark]: CACSL2BoogieTranslator took 169.59 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 936.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-12-07 13:45:37,019 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -176.8 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. [2019-12-07 13:45:37,019 INFO L168 Benchmark]: Boogie Preprocessor took 22.82 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. [2019-12-07 13:45:37,020 INFO L168 Benchmark]: RCFGBuilder took 1070.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2019-12-07 13:45:37,020 INFO L168 Benchmark]: TraceAbstraction took 3288.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 987.0 MB in the end (delta: 99.8 MB). Peak memory consumption was 99.8 MB. Max. memory is 11.5 GB. [2019-12-07 13:45:37,020 INFO L168 Benchmark]: Witness Printer took 43.40 ms. Allocated memory is still 1.2 GB. Free memory was 987.0 MB in the beginning and 980.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 13:45:37,023 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 169.59 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 936.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -176.8 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.82 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1070.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3288.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 987.0 MB in the end (delta: 99.8 MB). Peak memory consumption was 99.8 MB. Max. memory is 11.5 GB. * Witness Printer took 43.40 ms. Allocated memory is still 1.2 GB. Free memory was 987.0 MB in the beginning and 980.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 96]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L91] double x = 0.0; [L20] __int32_t i0, i1, j0; [L21] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [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 [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L29] COND TRUE j0 < 20 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L30] COND TRUE j0 < 0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L31] COND TRUE huge_ceil + x > 0.0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L32] COND FALSE !(i0 < 0) VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L35] COND TRUE (i0 | i1) != 0 [L36] i0 = 0x3ff00000 [L37] i1 = 0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L75] ieee_double_shape_type iw_u; [L76] iw_u.parts.msw = (i0) [L77] iw_u.parts.lsw = (i1) [L78] EXPR iw_u.value [L78] (x) = iw_u.value [L80] return x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L92] double res = ceil_double(x); [L95] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L96] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Result: UNSAFE, OverallTime: 3.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 69 SDtfs, 119 SDslu, 21 SDs, 0 SdLazy, 25 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 64 ConstructedInterpolants, 5 QuantifiedInterpolants, 3227 SizeOfPredicates, 11 NumberOfNonLiveVariables, 96 ConjunctsInSsa, 15 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...