./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1012b.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_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1012b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/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 56df0817616f6c5016a1ac832f32db0c87e1c370 ........................................................................................................................................................................................................................................................................................ 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_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1012b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/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 56df0817616f6c5016a1ac832f32db0c87e1c370 ...................................................................................................................................................................................................................................................................................................... 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 13:19:58,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:19:58,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:19:58,698 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:19:58,699 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:19:58,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:19:58,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:19:58,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:19:58,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:19:58,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:19:58,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:19:58,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:19:58,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:19:58,706 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:19:58,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:19:58,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:19:58,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:19:58,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:19:58,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:19:58,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:19:58,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:19:58,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:19:58,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:19:58,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:19:58,716 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:19:58,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:19:58,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:19:58,716 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:19:58,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:19:58,717 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:19:58,717 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:19:58,718 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:19:58,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:19:58,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:19:58,719 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:19:58,719 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:19:58,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:19:58,720 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:19:58,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:19:58,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:19:58,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:19:58,722 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 13:19:58,730 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:19:58,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:19:58,731 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 13:19:58,731 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 13:19:58,731 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 13:19:58,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:19:58,732 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:19:58,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:19:58,732 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:19:58,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:19:58,732 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:19:58,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:19:58,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:19:58,732 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:19:58,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:19:58,733 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:19:58,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:19:58,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:19:58,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:19:58,733 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:19:58,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:19:58,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:19:58,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:19:58,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:19:58,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:19:58,734 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 13:19:58,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 13:19:58,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:19:58,734 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:19:58,734 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_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/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 -> 56df0817616f6c5016a1ac832f32db0c87e1c370 [2019-12-07 13:19:58,833 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:19:58,842 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:19:58,844 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:19:58,845 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:19:58,845 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:19:58,846 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1012b.c [2019-12-07 13:19:58,884 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/bin/uautomizer/data/7f2f65dda/88ce8be72d7b4902930da33fb504955a/FLAG4705030d2 [2019-12-07 13:19:59,225 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:19:59,225 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/sv-benchmarks/c/float-newlib/double_req_bl_1012b.c [2019-12-07 13:19:59,229 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/bin/uautomizer/data/7f2f65dda/88ce8be72d7b4902930da33fb504955a/FLAG4705030d2 [2019-12-07 13:19:59,238 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/bin/uautomizer/data/7f2f65dda/88ce8be72d7b4902930da33fb504955a [2019-12-07 13:19:59,240 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:19:59,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:19:59,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:19:59,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:19:59,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:19:59,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:19:59" (1/1) ... [2019-12-07 13:19:59,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39474158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:19:59, skipping insertion in model container [2019-12-07 13:19:59,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:19:59" (1/1) ... [2019-12-07 13:19:59,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:19:59,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:19:59,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:19:59,414 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:19:59,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:19:59,445 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:19:59,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:19:59 WrapperNode [2019-12-07 13:19:59,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:19:59,446 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:19:59,446 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:19:59,446 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:19:59,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:19:59" (1/1) ... [2019-12-07 13:19:59,458 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:19:59" (1/1) ... [2019-12-07 13:19:59,472 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:19:59,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:19:59,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:19:59,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:19:59,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:19:59" (1/1) ... [2019-12-07 13:19:59,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:19:59" (1/1) ... [2019-12-07 13:19:59,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:19:59" (1/1) ... [2019-12-07 13:19:59,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:19:59" (1/1) ... [2019-12-07 13:19:59,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:19:59" (1/1) ... [2019-12-07 13:19:59,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:19:59" (1/1) ... [2019-12-07 13:19:59,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:19:59" (1/1) ... [2019-12-07 13:19:59,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:19:59,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:19:59,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:19:59,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:19:59,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:19:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/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 13:19:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:19:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 13:19:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 13:19:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 13:19:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:19:59,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:19:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 13:19:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 13:19:59,681 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:19:59,682 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-12-07 13:19:59,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:19:59 BoogieIcfgContainer [2019-12-07 13:19:59,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:19:59,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:19:59,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:19:59,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:19:59,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:19:59" (1/3) ... [2019-12-07 13:19:59,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a5d8cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:19:59, skipping insertion in model container [2019-12-07 13:19:59,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:19:59" (2/3) ... [2019-12-07 13:19:59,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a5d8cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:19:59, skipping insertion in model container [2019-12-07 13:19:59,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:19:59" (3/3) ... [2019-12-07 13:19:59,689 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1012b.c [2019-12-07 13:19:59,696 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:19:59,700 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 13:19:59,707 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 13:19:59,722 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:19:59,722 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:19:59,723 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:19:59,723 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:19:59,723 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:19:59,723 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:19:59,723 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:19:59,723 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:19:59,732 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-12-07 13:19:59,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 13:19:59,736 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:19:59,736 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:19:59,737 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:19:59,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:19:59,740 INFO L82 PathProgramCache]: Analyzing trace with hash -969083750, now seen corresponding path program 1 times [2019-12-07 13:19:59,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:19:59,746 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423862242] [2019-12-07 13:19:59,746 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:19:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:19:59,820 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 13:19:59,821 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423862242] [2019-12-07 13:19:59,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:19:59,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:19:59,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669743125] [2019-12-07 13:19:59,825 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 13:19:59,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:19:59,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 13:19:59,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:19:59,835 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2019-12-07 13:19:59,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:19:59,846 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2019-12-07 13:19:59,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 13:19:59,847 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 13:19:59,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:19:59,852 INFO L225 Difference]: With dead ends: 34 [2019-12-07 13:19:59,852 INFO L226 Difference]: Without dead ends: 15 [2019-12-07 13:19:59,854 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 13:19:59,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-07 13:19:59,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-07 13:19:59,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 13:19:59,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2019-12-07 13:19:59,879 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 11 [2019-12-07 13:19:59,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:19:59,879 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2019-12-07 13:19:59,879 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 13:19:59,879 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2019-12-07 13:19:59,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 13:19:59,880 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:19:59,880 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:19:59,880 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:19:59,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:19:59,880 INFO L82 PathProgramCache]: Analyzing trace with hash 657368916, now seen corresponding path program 1 times [2019-12-07 13:19:59,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:19:59,881 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75873100] [2019-12-07 13:19:59,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:19:59,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:19:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:20:00,001 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:20:00,001 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 13:20:00,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:20:00 BoogieIcfgContainer [2019-12-07 13:20:00,020 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:20:00,020 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:20:00,020 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:20:00,020 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:20:00,021 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:19:59" (3/4) ... [2019-12-07 13:20:00,023 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 13:20:00,023 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:20:00,025 INFO L168 Benchmark]: Toolchain (without parser) took 783.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 945.1 MB in the beginning and 1.0 GB in the end (delta: -102.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 11.5 GB. [2019-12-07 13:20:00,025 INFO L168 Benchmark]: CDTParser took 0.17 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 13:20:00,026 INFO L168 Benchmark]: CACSL2BoogieTranslator took 203.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 945.1 MB in the beginning and 1.1 GB in the end (delta: -157.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-12-07 13:20:00,026 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.06 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 13:20:00,027 INFO L168 Benchmark]: Boogie Preprocessor took 18.98 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 13:20:00,027 INFO L168 Benchmark]: RCFGBuilder took 191.15 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: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-12-07 13:20:00,028 INFO L168 Benchmark]: TraceAbstraction took 336.64 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 13:20:00,028 INFO L168 Benchmark]: Witness Printer took 3.42 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 13:20:00,030 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 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 203.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 945.1 MB in the beginning and 1.1 GB in the end (delta: -157.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.06 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 18.98 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 191.15 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: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 336.64 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 3.42 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: 73]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 39, overapproximation of someBinaryArithmeticDOUBLEoperation at line 68, overapproximation of bitwiseAnd at line 38. Possible FailurePath: [L68] double x = -1.0 / 0.0; [L45] __uint32_t high; [L47] ieee_double_shape_type gh_u; [L48] gh_u.value = (x) [L49] EXPR gh_u.parts.msw [L49] (high) = gh_u.parts.msw [L52] ieee_double_shape_type sh_u; [L53] sh_u.value = (x) [L54] sh_u.parts.msw = (high & 0x7fffffff) [L55] EXPR sh_u.value [L55] (x) = sh_u.value [L57] return x; [L69] double res = fabs_double(x); [L31] __int32_t hx, lx; [L33] ieee_double_shape_type ew_u; [L34] ew_u.value = (x) [L35] EXPR ew_u.parts.msw [L35] (hx) = ew_u.parts.msw [L36] EXPR ew_u.parts.lsw [L36] (lx) = ew_u.parts.lsw [L38] hx &= 0x7fffffff [L39] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L40] hx = 0x7ff00000 - hx [L41] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L72] COND TRUE !isinf_double(res) [L73] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 17 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=18occurred 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, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 13:20:01,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:20:01,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:20:01,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:20:01,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:20:01,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:20:01,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:20:01,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:20:01,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:20:01,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:20:01,356 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:20:01,357 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:20:01,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:20:01,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:20:01,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:20:01,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:20:01,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:20:01,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:20:01,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:20:01,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:20:01,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:20:01,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:20:01,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:20:01,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:20:01,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:20:01,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:20:01,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:20:01,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:20:01,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:20:01,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:20:01,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:20:01,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:20:01,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:20:01,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:20:01,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:20:01,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:20:01,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:20:01,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:20:01,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:20:01,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:20:01,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:20:01,376 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 13:20:01,386 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:20:01,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:20:01,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 13:20:01,387 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 13:20:01,387 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 13:20:01,387 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:20:01,387 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:20:01,387 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:20:01,388 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:20:01,388 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:20:01,388 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:20:01,388 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:20:01,388 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 13:20:01,388 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 13:20:01,388 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:20:01,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:20:01,389 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:20:01,389 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:20:01,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:20:01,389 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:20:01,389 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:20:01,389 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:20:01,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:20:01,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:20:01,390 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:20:01,390 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:20:01,390 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 13:20:01,390 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 13:20:01,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:20:01,390 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:20:01,390 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 13:20:01,390 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_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/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 -> 56df0817616f6c5016a1ac832f32db0c87e1c370 [2019-12-07 13:20:01,568 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:20:01,579 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:20:01,582 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:20:01,583 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:20:01,584 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:20:01,584 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1012b.c [2019-12-07 13:20:01,627 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/bin/uautomizer/data/bf7163560/2b46a9c2559e4a8fb8e99f42fa624305/FLAG08039855f [2019-12-07 13:20:01,992 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:20:01,993 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/sv-benchmarks/c/float-newlib/double_req_bl_1012b.c [2019-12-07 13:20:01,997 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/bin/uautomizer/data/bf7163560/2b46a9c2559e4a8fb8e99f42fa624305/FLAG08039855f [2019-12-07 13:20:02,006 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/bin/uautomizer/data/bf7163560/2b46a9c2559e4a8fb8e99f42fa624305 [2019-12-07 13:20:02,007 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:20:02,008 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:20:02,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:20:02,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:20:02,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:20:02,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:20:02" (1/1) ... [2019-12-07 13:20:02,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc928b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:02, skipping insertion in model container [2019-12-07 13:20:02,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:20:02" (1/1) ... [2019-12-07 13:20:02,018 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:20:02,030 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:20:02,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:20:02,139 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:20:02,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:20:02,177 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:20:02,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:02 WrapperNode [2019-12-07 13:20:02,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:20:02,178 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:20:02,178 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:20:02,178 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:20:02,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:02" (1/1) ... [2019-12-07 13:20:02,224 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:02" (1/1) ... [2019-12-07 13:20:02,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:20:02,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:20:02,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:20:02,240 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:20:02,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:02" (1/1) ... [2019-12-07 13:20:02,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:02" (1/1) ... [2019-12-07 13:20:02,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:02" (1/1) ... [2019-12-07 13:20:02,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:02" (1/1) ... [2019-12-07 13:20:02,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:02" (1/1) ... [2019-12-07 13:20:02,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:02" (1/1) ... [2019-12-07 13:20:02,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:02" (1/1) ... [2019-12-07 13:20:02,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:20:02,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:20:02,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:20:02,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:20:02,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/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 13:20:02,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 13:20:02,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 13:20:02,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:20:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 13:20:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:20:02,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:20:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 13:20:02,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 13:20:02,477 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:20:02,477 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-12-07 13:20:02,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:20:02 BoogieIcfgContainer [2019-12-07 13:20:02,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:20:02,479 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:20:02,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:20:02,481 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:20:02,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:20:02" (1/3) ... [2019-12-07 13:20:02,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c986268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:20:02, skipping insertion in model container [2019-12-07 13:20:02,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:20:02" (2/3) ... [2019-12-07 13:20:02,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c986268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:20:02, skipping insertion in model container [2019-12-07 13:20:02,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:20:02" (3/3) ... [2019-12-07 13:20:02,483 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1012b.c [2019-12-07 13:20:02,490 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:20:02,494 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 13:20:02,501 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 13:20:02,515 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:20:02,515 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:20:02,515 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:20:02,515 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:20:02,515 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:20:02,515 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:20:02,515 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:20:02,515 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:20:02,524 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-12-07 13:20:02,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 13:20:02,528 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:20:02,528 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:20:02,528 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:20:02,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:20:02,532 INFO L82 PathProgramCache]: Analyzing trace with hash -969083750, now seen corresponding path program 1 times [2019-12-07 13:20:02,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 13:20:02,540 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1826333509] [2019-12-07 13:20:02,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/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 13:20:02,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:20:02,606 INFO L264 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 13:20:02,609 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:20:02,618 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 13:20:02,619 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:20:02,621 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 13:20:02,622 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1826333509] [2019-12-07 13:20:02,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:20:02,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 13:20:02,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123837250] [2019-12-07 13:20:02,625 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 13:20:02,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 13:20:02,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 13:20:02,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:20:02,636 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2019-12-07 13:20:02,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:20:02,647 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2019-12-07 13:20:02,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 13:20:02,648 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 13:20:02,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:20:02,656 INFO L225 Difference]: With dead ends: 34 [2019-12-07 13:20:02,656 INFO L226 Difference]: Without dead ends: 15 [2019-12-07 13:20:02,659 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:20:02,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-07 13:20:02,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-07 13:20:02,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 13:20:02,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2019-12-07 13:20:02,686 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 11 [2019-12-07 13:20:02,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:20:02,686 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2019-12-07 13:20:02,686 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 13:20:02,687 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2019-12-07 13:20:02,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 13:20:02,687 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:20:02,687 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:20:02,888 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 13:20:02,889 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:20:02,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:20:02,890 INFO L82 PathProgramCache]: Analyzing trace with hash 657368916, now seen corresponding path program 1 times [2019-12-07 13:20:02,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 13:20:02,894 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974250951] [2019-12-07 13:20:02,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/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 13:20:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:20:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:20:03,170 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 13:20:03,170 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 13:20:03,371 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 13:20:03,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:20:03 BoogieIcfgContainer [2019-12-07 13:20:03,402 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:20:03,403 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:20:03,403 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:20:03,403 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:20:03,404 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:20:02" (3/4) ... [2019-12-07 13:20:03,407 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 13:20:03,442 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_33ea00ff-dfe7-4c51-b088-b61b58bb2dbc/bin/uautomizer/witness.graphml [2019-12-07 13:20:03,442 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:20:03,443 INFO L168 Benchmark]: Toolchain (without parser) took 1434.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 952.4 MB in the beginning and 1.0 GB in the end (delta: -95.4 MB). Peak memory consumption was 47.2 MB. Max. memory is 11.5 GB. [2019-12-07 13:20:03,444 INFO L168 Benchmark]: CDTParser took 0.18 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 13:20:03,444 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.58 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 13:20:03,444 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -195.5 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. [2019-12-07 13:20:03,445 INFO L168 Benchmark]: Boogie Preprocessor took 22.13 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 13:20:03,445 INFO L168 Benchmark]: RCFGBuilder took 216.39 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: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-07 13:20:03,445 INFO L168 Benchmark]: TraceAbstraction took 923.30 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: 59.2 MB). Peak memory consumption was 59.2 MB. Max. memory is 11.5 GB. [2019-12-07 13:20:03,445 INFO L168 Benchmark]: Witness Printer took 39.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 13:20:03,447 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 168.58 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 62.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -195.5 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.13 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 216.39 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: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 923.30 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: 59.2 MB). Peak memory consumption was 59.2 MB. Max. memory is 11.5 GB. * Witness Printer took 39.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 73]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L68] double x = -1.0 / 0.0; [L45] __uint32_t high; [L47] ieee_double_shape_type gh_u; [L48] gh_u.value = (x) [L49] EXPR gh_u.parts.msw [L49] (high) = gh_u.parts.msw [L52] ieee_double_shape_type sh_u; [L53] sh_u.value = (x) [L54] sh_u.parts.msw = (high & 0x7fffffff) [L55] EXPR sh_u.value [L55] (x) = sh_u.value [L57] return x; [L69] double res = fabs_double(x); [L31] __int32_t hx, lx; [L33] ieee_double_shape_type ew_u; [L34] ew_u.value = (x) [L35] EXPR ew_u.parts.msw [L35] (hx) = ew_u.parts.msw [L36] EXPR ew_u.parts.lsw [L36] (lx) = ew_u.parts.lsw [L38] hx &= 0x7fffffff [L39] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L40] hx = 0x7ff00000 - hx [L41] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L72] COND TRUE !isinf_double(res) [L73] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 17 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 200 SizeOfPredicates, 0 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...