./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1210.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2880296f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1210.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 85e5b86abce931d95696fba33e25199d528f9f0e ....................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1210.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 85e5b86abce931d95696fba33e25199d528f9f0e ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-2880296 [2020-12-02 15:34:18,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 15:34:18,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 15:34:18,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 15:34:18,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 15:34:18,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 15:34:18,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 15:34:18,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 15:34:18,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 15:34:18,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 15:34:18,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 15:34:18,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 15:34:18,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 15:34:18,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 15:34:18,162 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 15:34:18,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 15:34:18,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 15:34:18,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 15:34:18,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 15:34:18,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 15:34:18,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 15:34:18,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 15:34:18,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 15:34:18,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 15:34:18,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 15:34:18,179 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 15:34:18,180 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 15:34:18,181 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 15:34:18,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 15:34:18,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 15:34:18,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 15:34:18,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 15:34:18,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 15:34:18,185 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 15:34:18,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 15:34:18,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 15:34:18,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 15:34:18,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 15:34:18,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 15:34:18,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 15:34:18,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 15:34:18,193 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 15:34:18,220 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 15:34:18,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 15:34:18,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 15:34:18,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 15:34:18,223 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 15:34:18,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 15:34:18,224 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 15:34:18,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 15:34:18,224 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 15:34:18,224 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 15:34:18,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 15:34:18,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 15:34:18,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 15:34:18,225 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 15:34:18,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 15:34:18,225 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 15:34:18,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 15:34:18,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 15:34:18,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 15:34:18,226 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 15:34:18,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 15:34:18,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:34:18,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 15:34:18,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 15:34:18,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 15:34:18,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 15:34:18,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 15:34:18,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 15:34:18,228 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 15:34:18,228 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85e5b86abce931d95696fba33e25199d528f9f0e [2020-12-02 15:34:18,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 15:34:18,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 15:34:18,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 15:34:18,767 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 15:34:18,768 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 15:34:18,769 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1210.c [2020-12-02 15:34:18,871 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/245ca78cf/33e41379e4254b3eadce2dd10ca3b376/FLAG3c6700d45 [2020-12-02 15:34:19,620 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 15:34:19,621 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1210.c [2020-12-02 15:34:19,632 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/245ca78cf/33e41379e4254b3eadce2dd10ca3b376/FLAG3c6700d45 [2020-12-02 15:34:19,928 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/245ca78cf/33e41379e4254b3eadce2dd10ca3b376 [2020-12-02 15:34:19,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 15:34:19,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 15:34:19,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 15:34:19,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 15:34:19,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 15:34:19,942 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:34:19" (1/1) ... [2020-12-02 15:34:19,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ddce779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:19, skipping insertion in model container [2020-12-02 15:34:19,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:34:19" (1/1) ... [2020-12-02 15:34:19,956 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 15:34:19,979 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 15:34:20,241 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1210.c[3091,3104] [2020-12-02 15:34:20,245 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:34:20,257 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 15:34:20,303 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1210.c[3091,3104] [2020-12-02 15:34:20,304 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:34:20,332 INFO L217 MainTranslator]: Completed translation [2020-12-02 15:34:20,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:20 WrapperNode [2020-12-02 15:34:20,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 15:34:20,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 15:34:20,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 15:34:20,340 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 15:34:20,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:20" (1/1) ... [2020-12-02 15:34:20,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:20" (1/1) ... [2020-12-02 15:34:20,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 15:34:20,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 15:34:20,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 15:34:20,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 15:34:20,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:20" (1/1) ... [2020-12-02 15:34:20,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:20" (1/1) ... [2020-12-02 15:34:20,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:20" (1/1) ... [2020-12-02 15:34:20,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:20" (1/1) ... [2020-12-02 15:34:20,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:20" (1/1) ... [2020-12-02 15:34:20,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:20" (1/1) ... [2020-12-02 15:34:20,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:20" (1/1) ... [2020-12-02 15:34:20,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 15:34:20,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 15:34:20,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 15:34:20,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 15:34:20,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:34:20,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 15:34:20,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 15:34:20,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-02 15:34:20,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-02 15:34:20,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-02 15:34:20,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 15:34:20,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 15:34:20,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-02 15:34:20,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 15:34:21,519 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 15:34:21,520 INFO L298 CfgBuilder]: Removed 30 assume(true) statements. [2020-12-02 15:34:21,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:34:21 BoogieIcfgContainer [2020-12-02 15:34:21,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 15:34:21,524 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 15:34:21,524 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 15:34:21,528 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 15:34:21,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:34:19" (1/3) ... [2020-12-02 15:34:21,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8422572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:34:21, skipping insertion in model container [2020-12-02 15:34:21,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:20" (2/3) ... [2020-12-02 15:34:21,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8422572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:34:21, skipping insertion in model container [2020-12-02 15:34:21,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:34:21" (3/3) ... [2020-12-02 15:34:21,532 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2020-12-02 15:34:21,550 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 15:34:21,555 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 15:34:21,569 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 15:34:21,599 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 15:34:21,599 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 15:34:21,599 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 15:34:21,599 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 15:34:21,599 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 15:34:21,600 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 15:34:21,600 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 15:34:21,600 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 15:34:21,617 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-12-02 15:34:21,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-02 15:34:21,624 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:34:21,625 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:34:21,626 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:34:21,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:34:21,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1560975081, now seen corresponding path program 1 times [2020-12-02 15:34:21,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 15:34:21,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474102859] [2020-12-02 15:34:21,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 15:34:21,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:34:21,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:34:21,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474102859] [2020-12-02 15:34:21,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:34:21,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 15:34:21,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44449038] [2020-12-02 15:34:21,838 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 15:34:21,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 15:34:21,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 15:34:21,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:34:21,862 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2020-12-02 15:34:21,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:34:21,907 INFO L93 Difference]: Finished difference Result 86 states and 138 transitions. [2020-12-02 15:34:21,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 15:34:21,909 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-12-02 15:34:21,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:34:21,925 INFO L225 Difference]: With dead ends: 86 [2020-12-02 15:34:21,925 INFO L226 Difference]: Without dead ends: 41 [2020-12-02 15:34:21,932 INFO L677 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 [2020-12-02 15:34:21,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-12-02 15:34:21,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-12-02 15:34:21,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-12-02 15:34:21,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2020-12-02 15:34:21,970 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 13 [2020-12-02 15:34:21,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:34:21,971 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2020-12-02 15:34:21,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 15:34:21,971 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2020-12-02 15:34:21,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-02 15:34:21,973 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:34:21,973 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:34:21,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 15:34:21,974 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:34:21,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:34:21,975 INFO L82 PathProgramCache]: Analyzing trace with hash -11965906, now seen corresponding path program 1 times [2020-12-02 15:34:21,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 15:34:21,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172700309] [2020-12-02 15:34:21,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 15:34:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:34:22,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:34:22,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172700309] [2020-12-02 15:34:22,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:34:22,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 15:34:22,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416922932] [2020-12-02 15:34:22,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-02 15:34:22,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 15:34:22,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-02 15:34:22,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 15:34:22,125 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 3 states. [2020-12-02 15:34:22,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:34:22,146 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2020-12-02 15:34:22,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-02 15:34:22,147 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-12-02 15:34:22,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:34:22,148 INFO L225 Difference]: With dead ends: 44 [2020-12-02 15:34:22,148 INFO L226 Difference]: Without dead ends: 41 [2020-12-02 15:34:22,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 15:34:22,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-12-02 15:34:22,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-12-02 15:34:22,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-12-02 15:34:22,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2020-12-02 15:34:22,157 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 15 [2020-12-02 15:34:22,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:34:22,157 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2020-12-02 15:34:22,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-02 15:34:22,158 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2020-12-02 15:34:22,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-02 15:34:22,159 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:34:22,159 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:34:22,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-02 15:34:22,160 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:34:22,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:34:22,161 INFO L82 PathProgramCache]: Analyzing trace with hash -371067880, now seen corresponding path program 1 times [2020-12-02 15:34:22,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 15:34:22,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812722502] [2020-12-02 15:34:22,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 15:34:22,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 15:34:22,216 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 15:34:22,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 15:34:22,286 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 15:34:22,327 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-02 15:34:22,328 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 15:34:22,328 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-02 15:34:22,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:34:22 BoogieIcfgContainer [2020-12-02 15:34:22,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 15:34:22,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 15:34:22,384 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 15:34:22,384 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 15:34:22,385 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:34:21" (3/4) ... [2020-12-02 15:34:22,389 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-02 15:34:22,389 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 15:34:22,392 INFO L168 Benchmark]: Toolchain (without parser) took 2457.56 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 25.0 MB in the beginning and 41.6 MB in the end (delta: -16.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:34:22,393 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 39.8 MB. Free memory was 17.8 MB in the beginning and 17.7 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:34:22,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 400.49 ms. Allocated memory is still 48.2 MB. Free memory was 24.8 MB in the beginning and 24.1 MB in the end (delta: 668.5 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-12-02 15:34:22,395 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.50 ms. Allocated memory is still 48.2 MB. Free memory was 24.1 MB in the beginning and 21.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:34:22,396 INFO L168 Benchmark]: Boogie Preprocessor took 112.25 ms. Allocated memory is still 48.2 MB. Free memory was 21.9 MB in the beginning and 31.5 MB in the end (delta: -9.5 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-12-02 15:34:22,397 INFO L168 Benchmark]: RCFGBuilder took 956.68 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 31.3 MB in the beginning and 37.5 MB in the end (delta: -6.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2020-12-02 15:34:22,398 INFO L168 Benchmark]: TraceAbstraction took 858.51 ms. Allocated memory is still 60.8 MB. Free memory was 37.2 MB in the beginning and 42.0 MB in the end (delta: -4.8 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. [2020-12-02 15:34:22,399 INFO L168 Benchmark]: Witness Printer took 6.14 ms. Allocated memory is still 60.8 MB. Free memory is still 41.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:34:22,404 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 39.8 MB. Free memory was 17.8 MB in the beginning and 17.7 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 400.49 ms. Allocated memory is still 48.2 MB. Free memory was 24.8 MB in the beginning and 24.1 MB in the end (delta: 668.5 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 112.50 ms. Allocated memory is still 48.2 MB. Free memory was 24.1 MB in the beginning and 21.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 112.25 ms. Allocated memory is still 48.2 MB. Free memory was 21.9 MB in the beginning and 31.5 MB in the end (delta: -9.5 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 956.68 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 31.3 MB in the beginning and 37.5 MB in the end (delta: -6.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 858.51 ms. Allocated memory is still 60.8 MB. Free memory was 37.2 MB in the beginning and 42.0 MB in the end (delta: -4.8 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. * Witness Printer took 6.14 ms. Allocated memory is still 60.8 MB. Free memory is still 41.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 124]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticDOUBLE_SMToperation at line 118, overapproximation of someBinaryDOUBLE_SMTComparisonOperation at line 17, overapproximation of bitwiseAnd at line 35. Possible FailurePath: [L19] static const double one_modf = 1.0; VAL [one_modf=1] [L118] double x = 0.0 / 0.0; [L119] double iptr; [L22] __int32_t i0, i1, j0; [L23] __uint32_t i; VAL [one_modf=1] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [one_modf=1] [L31] COND TRUE j0 < 20 VAL [one_modf=1] [L32] COND TRUE j0 < 0 VAL [one_modf=1] [L34] ieee_double_shape_type iw_u; [L35] iw_u.parts.msw = (i0 & 0x80000000) [L36] iw_u.parts.lsw = (0) [L37] EXPR iw_u.value [L37] (*iptr) = iw_u.value [L39] return x; VAL [one_modf=1] [L120] double res = modf_double(x, &iptr); [L123] EXPR \read(iptr) [L17] return x != x; VAL [one_modf=1] [L123] isnan_double(iptr) && !isnan_double(res) [L17] return x != x; VAL [one_modf=1] [L123] isnan_double(iptr) && !isnan_double(res) VAL [one_modf=1] [L123] COND TRUE isnan_double(iptr) && !isnan_double(res) [L124] reach_error() VAL [one_modf=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 95 SDtfs, 0 SDslu, 40 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 354 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: 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 0.2.0-2880296 [2020-12-02 15:34:25,168 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-12-02 15:34:25,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 15:34:25,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 15:34:25,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 15:34:25,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 15:34:25,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 15:34:25,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 15:34:25,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 15:34:25,330 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 15:34:25,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 15:34:25,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 15:34:25,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 15:34:25,341 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 15:34:25,368 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 15:34:25,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 15:34:25,370 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 15:34:25,370 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 15:34:25,371 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 15:34:25,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 15:34:25,371 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 15:34:25,372 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 15:34:25,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 15:34:25,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 15:34:25,373 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 15:34:25,373 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 15:34:25,373 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 15:34:25,373 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 15:34:25,374 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 15:34:25,374 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 15:34:25,374 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 15:34:25,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 15:34:25,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 15:34:25,375 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 15:34:25,375 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 15:34:25,376 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 15:34:25,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:34:25,376 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 15:34:25,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 15:34:25,377 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 15:34:25,377 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 15:34:25,377 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 15:34:25,378 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 15:34:25,378 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 15:34:25,378 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 15:34:25,378 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85e5b86abce931d95696fba33e25199d528f9f0e [2020-12-02 15:34:25,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 15:34:25,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 15:34:25,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 15:34:25,841 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 15:34:25,841 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 15:34:25,843 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1210.c [2020-12-02 15:34:25,943 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b3a2db0a/555eac4ca20c4f41bd5518f91a8091cc/FLAG8c8b059bb [2020-12-02 15:34:26,740 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 15:34:26,741 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1210.c [2020-12-02 15:34:26,753 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b3a2db0a/555eac4ca20c4f41bd5518f91a8091cc/FLAG8c8b059bb [2020-12-02 15:34:27,041 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b3a2db0a/555eac4ca20c4f41bd5518f91a8091cc [2020-12-02 15:34:27,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 15:34:27,047 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 15:34:27,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 15:34:27,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 15:34:27,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 15:34:27,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:34:27" (1/1) ... [2020-12-02 15:34:27,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b9770e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:27, skipping insertion in model container [2020-12-02 15:34:27,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:34:27" (1/1) ... [2020-12-02 15:34:27,081 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 15:34:27,125 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 15:34:27,365 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1210.c[3091,3104] [2020-12-02 15:34:27,369 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:34:27,409 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 15:34:27,525 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1210.c[3091,3104] [2020-12-02 15:34:27,527 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:34:27,550 INFO L217 MainTranslator]: Completed translation [2020-12-02 15:34:27,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:27 WrapperNode [2020-12-02 15:34:27,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 15:34:27,553 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 15:34:27,554 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 15:34:27,554 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 15:34:27,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:27" (1/1) ... [2020-12-02 15:34:27,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:27" (1/1) ... [2020-12-02 15:34:27,655 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 15:34:27,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 15:34:27,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 15:34:27,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 15:34:27,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:27" (1/1) ... [2020-12-02 15:34:27,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:27" (1/1) ... [2020-12-02 15:34:27,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:27" (1/1) ... [2020-12-02 15:34:27,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:27" (1/1) ... [2020-12-02 15:34:27,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:27" (1/1) ... [2020-12-02 15:34:27,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:27" (1/1) ... [2020-12-02 15:34:27,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:27" (1/1) ... [2020-12-02 15:34:27,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 15:34:27,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 15:34:27,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 15:34:27,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 15:34:27,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:34:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-02 15:34:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-02 15:34:27,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-02 15:34:27,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 15:34:27,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 15:34:27,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-02 15:34:27,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 15:34:27,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 15:34:27,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-02 15:34:27,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 15:34:31,385 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 15:34:31,386 INFO L298 CfgBuilder]: Removed 30 assume(true) statements. [2020-12-02 15:34:31,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:34:31 BoogieIcfgContainer [2020-12-02 15:34:31,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 15:34:31,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 15:34:31,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 15:34:31,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 15:34:31,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:34:27" (1/3) ... [2020-12-02 15:34:31,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3386688e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:34:31, skipping insertion in model container [2020-12-02 15:34:31,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:34:27" (2/3) ... [2020-12-02 15:34:31,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3386688e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:34:31, skipping insertion in model container [2020-12-02 15:34:31,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:34:31" (3/3) ... [2020-12-02 15:34:31,399 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2020-12-02 15:34:31,416 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 15:34:31,420 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 15:34:31,434 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 15:34:31,464 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 15:34:31,464 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 15:34:31,465 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 15:34:31,465 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 15:34:31,465 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 15:34:31,465 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 15:34:31,466 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 15:34:31,466 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 15:34:31,482 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-12-02 15:34:31,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-02 15:34:31,489 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:34:31,490 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:34:31,491 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:34:31,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:34:31,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1560975081, now seen corresponding path program 1 times [2020-12-02 15:34:31,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:34:31,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1247877736] [2020-12-02 15:34:31,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-02 15:34:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:34:32,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-02 15:34:32,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:34:32,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:34:32,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:34:32,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:34:32,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1247877736] [2020-12-02 15:34:32,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:34:32,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-02 15:34:32,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132369915] [2020-12-02 15:34:32,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 15:34:32,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:34:32,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 15:34:32,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:34:32,688 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2020-12-02 15:34:32,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:34:32,712 INFO L93 Difference]: Finished difference Result 86 states and 138 transitions. [2020-12-02 15:34:32,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 15:34:32,714 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-12-02 15:34:32,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:34:32,725 INFO L225 Difference]: With dead ends: 86 [2020-12-02 15:34:32,726 INFO L226 Difference]: Without dead ends: 41 [2020-12-02 15:34:32,729 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:34:32,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-12-02 15:34:32,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-12-02 15:34:32,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-12-02 15:34:32,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2020-12-02 15:34:32,771 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 13 [2020-12-02 15:34:32,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:34:32,772 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2020-12-02 15:34:32,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 15:34:32,772 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2020-12-02 15:34:32,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-02 15:34:32,774 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:34:32,774 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:34:32,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 15:34:32,989 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:34:32,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:34:32,991 INFO L82 PathProgramCache]: Analyzing trace with hash -11965906, now seen corresponding path program 1 times [2020-12-02 15:34:32,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:34:32,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1743659052] [2020-12-02 15:34:32,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-02 15:34:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:34:33,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-02 15:34:33,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:34:39,860 WARN L197 SmtUtils]: Spent 2.13 s on a formula simplification that was a NOOP. DAG size: 23 [2020-12-02 15:34:52,769 WARN L197 SmtUtils]: Spent 1.98 s on a formula simplification that was a NOOP. DAG size: 26 [2020-12-02 15:35:11,084 WARN L197 SmtUtils]: Spent 2.16 s on a formula simplification that was a NOOP. DAG size: 32 [2020-12-02 15:35:11,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:35:11,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:35:27,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:35:27,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1743659052] [2020-12-02 15:35:27,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:35:27,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-12-02 15:35:27,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165415161] [2020-12-02 15:35:27,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-02 15:35:27,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:35:27,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-02 15:35:27,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=45, Unknown=9, NotChecked=0, Total=72 [2020-12-02 15:35:27,820 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 9 states. [2020-12-02 15:35:46,518 WARN L197 SmtUtils]: Spent 5.23 s on a formula simplification that was a NOOP. DAG size: 26 [2020-12-02 15:35:50,209 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet33_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_6| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet33_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet33_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet33_6|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_6|)))) (and (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_modf_double_~x) ((_ extract 62 52) c_ULTIMATE.start_modf_double_~x) ((_ extract 51 0) c_ULTIMATE.start_modf_double_~x))) (= (_ +zero 11 53) .cse1) (= (_ +zero 11 53) .cse0)))) (exists ((|v_ULTIMATE.start_main_#t~nondet33_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_6| (_ BitVec 64)) (ULTIMATE.start_modf_double_~x (_ BitVec 64))) (let ((.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet33_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet33_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet33_6|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_6|)))) (and (= (fp.div roundNearestTiesToEven .cse2 .cse3) (fp ((_ extract 63 63) ULTIMATE.start_modf_double_~x) ((_ extract 62 52) ULTIMATE.start_modf_double_~x) ((_ extract 51 0) ULTIMATE.start_modf_double_~x))) (= c_ULTIMATE.start_modf_double_~i0~0 ((_ extract 63 32) ULTIMATE.start_modf_double_~x)) (= (_ +zero 11 53) .cse3) (= (_ +zero 11 53) .cse2))))) is different from false [2020-12-02 15:35:54,275 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet33_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_6| (_ BitVec 64)) (ULTIMATE.start_modf_double_~x (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet33_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet33_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet33_6|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_6|)))) (and (= (bvadd (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) ULTIMATE.start_modf_double_~x) (_ bv20 32))) (_ bv4294966273 32)) c_ULTIMATE.start_modf_double_~j0~0) (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) ULTIMATE.start_modf_double_~x) ((_ extract 62 52) ULTIMATE.start_modf_double_~x) ((_ extract 51 0) ULTIMATE.start_modf_double_~x))) (= (_ +zero 11 53) .cse1) (= (_ +zero 11 53) .cse0)))) (exists ((|v_ULTIMATE.start_main_#t~nondet33_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_6| (_ BitVec 64)) (ULTIMATE.start_modf_double_~x (_ BitVec 64))) (let ((.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet33_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet33_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet33_6|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_6|)))) (and (= (fp.div roundNearestTiesToEven .cse2 .cse3) (fp ((_ extract 63 63) ULTIMATE.start_modf_double_~x) ((_ extract 62 52) ULTIMATE.start_modf_double_~x) ((_ extract 51 0) ULTIMATE.start_modf_double_~x))) (= c_ULTIMATE.start_modf_double_~i0~0 ((_ extract 63 32) ULTIMATE.start_modf_double_~x)) (= (_ +zero 11 53) .cse3) (= (_ +zero 11 53) .cse2))))) is different from false [2020-12-02 15:36:03,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:36:03,482 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2020-12-02 15:36:03,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-02 15:36:03,483 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-12-02 15:36:03,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:36:03,484 INFO L225 Difference]: With dead ends: 55 [2020-12-02 15:36:03,484 INFO L226 Difference]: Without dead ends: 35 [2020-12-02 15:36:03,486 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 77.4s TimeCoverageRelationStatistics Valid=27, Invalid=60, Unknown=11, NotChecked=34, Total=132 [2020-12-02 15:36:03,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-12-02 15:36:03,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 28. [2020-12-02 15:36:03,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-12-02 15:36:03,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2020-12-02 15:36:03,492 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 15 [2020-12-02 15:36:03,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:36:03,493 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2020-12-02 15:36:03,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-02 15:36:03,493 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2020-12-02 15:36:03,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-02 15:36:03,494 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:36:03,494 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:36:03,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 15:36:03,704 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:36:03,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:36:03,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1615898099, now seen corresponding path program 1 times [2020-12-02 15:36:03,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:36:03,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1390419532] [2020-12-02 15:36:03,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-02 15:36:04,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:36:04,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-02 15:36:04,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:36:04,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:36:04,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:36:04,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:36:04,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1390419532] [2020-12-02 15:36:04,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:36:04,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-12-02 15:36:04,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675127850] [2020-12-02 15:36:04,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-02 15:36:04,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:36:04,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-02 15:36:04,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 15:36:04,903 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand 3 states. [2020-12-02 15:36:05,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:36:05,053 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-12-02 15:36:05,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-02 15:36:05,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-12-02 15:36:05,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:36:05,055 INFO L225 Difference]: With dead ends: 31 [2020-12-02 15:36:05,055 INFO L226 Difference]: Without dead ends: 28 [2020-12-02 15:36:05,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 15:36:05,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-12-02 15:36:05,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-12-02 15:36:05,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-12-02 15:36:05,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2020-12-02 15:36:05,061 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 16 [2020-12-02 15:36:05,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:36:05,062 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2020-12-02 15:36:05,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-02 15:36:05,062 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-12-02 15:36:05,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-02 15:36:05,063 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:36:05,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:36:05,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-02 15:36:05,277 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:36:05,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:36:05,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1446891277, now seen corresponding path program 1 times [2020-12-02 15:36:05,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:36:05,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1526468281] [2020-12-02 15:36:05,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-02 15:36:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:36:06,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-02 15:36:06,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:36:08,631 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_#t~nondet33_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_8| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet33_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet33_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet33_8|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_8|)))) (and (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_modf_double_~x) ((_ extract 62 52) c_ULTIMATE.start_modf_double_~x) ((_ extract 51 0) c_ULTIMATE.start_modf_double_~x))) (= .cse1 (_ +zero 11 53)) (= .cse0 (_ +zero 11 53))))) is different from false [2020-12-02 15:36:10,840 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_#t~nondet33_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_8| (_ BitVec 64)) (ULTIMATE.start_modf_double_~x (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet33_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet33_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet33_8|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_8|)))) (and (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) ULTIMATE.start_modf_double_~x) ((_ extract 62 52) ULTIMATE.start_modf_double_~x) ((_ extract 51 0) ULTIMATE.start_modf_double_~x))) (= .cse1 (_ +zero 11 53)) (= c_ULTIMATE.start_modf_double_~i0~0 ((_ extract 63 32) ULTIMATE.start_modf_double_~x)) (= .cse0 (_ +zero 11 53))))) is different from false [2020-12-02 15:36:13,025 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_#t~nondet33_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_8| (_ BitVec 64)) (ULTIMATE.start_modf_double_~x (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet33_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet33_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet33_8|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_8|)))) (and (= (bvadd (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) ULTIMATE.start_modf_double_~x) (_ bv20 32))) (_ bv4294966273 32)) c_ULTIMATE.start_modf_double_~j0~0) (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) ULTIMATE.start_modf_double_~x) ((_ extract 62 52) ULTIMATE.start_modf_double_~x) ((_ extract 51 0) ULTIMATE.start_modf_double_~x))) (= .cse1 (_ +zero 11 53)) (= .cse0 (_ +zero 11 53))))) is different from false [2020-12-02 15:36:24,660 WARN L197 SmtUtils]: Spent 8.53 s on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2020-12-02 15:36:24,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:36:24,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:36:27,742 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-12-02 15:36:30,198 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-12-02 15:36:32,583 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-02 15:36:33,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:36:33,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1526468281] [2020-12-02 15:36:33,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:36:33,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-12-02 15:36:33,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244052545] [2020-12-02 15:36:33,831 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-02 15:36:33,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:36:33,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-02 15:36:33,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=42, Unknown=4, NotChecked=42, Total=110 [2020-12-02 15:36:33,833 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 11 states. [2020-12-02 15:36:36,128 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (let ((.cse0 (bvadd (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) c_ULTIMATE.start_modf_double_~x) (_ bv20 32))) (_ bv4294966273 32)))) (or (bvslt .cse0 (_ bv20 32)) (bvsgt .cse0 (_ bv51 32)))) (exists ((|v_ULTIMATE.start_main_#t~nondet33_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_8| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet33_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet33_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet33_8|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_8|)))) (and (= (fp.div roundNearestTiesToEven .cse1 .cse2) (fp ((_ extract 63 63) c_ULTIMATE.start_modf_double_~x) ((_ extract 62 52) c_ULTIMATE.start_modf_double_~x) ((_ extract 51 0) c_ULTIMATE.start_modf_double_~x))) (= .cse2 (_ +zero 11 53)) (= .cse1 (_ +zero 11 53)))))) is different from false [2020-12-02 15:36:54,936 WARN L197 SmtUtils]: Spent 6.62 s on a formula simplification. DAG size of input: 37 DAG size of output: 26 [2020-12-02 15:37:00,005 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet33_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_8| (_ BitVec 64)) (ULTIMATE.start_modf_double_~x (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet33_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet33_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet33_8|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_8|)))) (and (= (bvadd (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) ULTIMATE.start_modf_double_~x) (_ bv20 32))) (_ bv4294966273 32)) c_ULTIMATE.start_modf_double_~j0~0) (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) ULTIMATE.start_modf_double_~x) ((_ extract 62 52) ULTIMATE.start_modf_double_~x) ((_ extract 51 0) ULTIMATE.start_modf_double_~x))) (= .cse1 (_ +zero 11 53)) (= .cse0 (_ +zero 11 53))))) (let ((.cse2 (bvadd (bvand (_ bv2047 32) (bvashr c_ULTIMATE.start_modf_double_~i0~0 (_ bv20 32))) (_ bv4294966273 32)))) (or (bvslt .cse2 (_ bv20 32)) (bvsgt .cse2 (_ bv51 32))))) is different from false [2020-12-02 15:37:03,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:37:03,348 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2020-12-02 15:37:03,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-02 15:37:03,349 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 17 [2020-12-02 15:37:03,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:37:03,349 INFO L225 Difference]: With dead ends: 35 [2020-12-02 15:37:03,349 INFO L226 Difference]: Without dead ends: 19 [2020-12-02 15:37:03,350 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 50.5s TimeCoverageRelationStatistics Valid=29, Invalid=56, Unknown=7, NotChecked=90, Total=182 [2020-12-02 15:37:03,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-02 15:37:03,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-12-02 15:37:03,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-02 15:37:03,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2020-12-02 15:37:03,354 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 17 [2020-12-02 15:37:03,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:37:03,354 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2020-12-02 15:37:03,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-02 15:37:03,354 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2020-12-02 15:37:03,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-02 15:37:03,355 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:37:03,355 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:37:03,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-02 15:37:03,556 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:37:03,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:37:03,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1046870301, now seen corresponding path program 1 times [2020-12-02 15:37:03,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:37:03,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [22002650] [2020-12-02 15:37:03,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-02 15:37:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 15:37:05,112 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 15:37:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 15:37:06,774 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 15:37:07,000 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-12-02 15:37:07,001 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 15:37:07,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-02 15:37:07,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:37:07 BoogieIcfgContainer [2020-12-02 15:37:07,275 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 15:37:07,276 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 15:37:07,276 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 15:37:07,277 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 15:37:07,278 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:34:31" (3/4) ... [2020-12-02 15:37:07,281 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-02 15:37:07,398 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-02 15:37:07,402 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 15:37:07,405 INFO L168 Benchmark]: Toolchain (without parser) took 160357.20 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 25.2 MB in the beginning and 23.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2020-12-02 15:37:07,406 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 37.7 MB. Free memory was 20.1 MB in the beginning and 20.1 MB in the end (delta: 46.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:37:07,411 INFO L168 Benchmark]: CACSL2BoogieTranslator took 503.12 ms. Allocated memory is still 48.2 MB. Free memory was 25.0 MB in the beginning and 22.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-12-02 15:37:07,412 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.97 ms. Allocated memory is still 48.2 MB. Free memory was 22.9 MB in the beginning and 32.1 MB in the end (delta: -9.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2020-12-02 15:37:07,413 INFO L168 Benchmark]: Boogie Preprocessor took 90.27 ms. Allocated memory is still 48.2 MB. Free memory was 32.1 MB in the beginning and 29.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:37:07,415 INFO L168 Benchmark]: RCFGBuilder took 3637.48 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 29.9 MB in the beginning and 38.1 MB in the end (delta: -8.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2020-12-02 15:37:07,418 INFO L168 Benchmark]: TraceAbstraction took 155885.02 ms. Allocated memory is still 58.7 MB. Free memory was 37.8 MB in the beginning and 26.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2020-12-02 15:37:07,418 INFO L168 Benchmark]: Witness Printer took 127.29 ms. Allocated memory is still 58.7 MB. Free memory was 26.7 MB in the beginning and 23.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:37:07,422 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 37.7 MB. Free memory was 20.1 MB in the beginning and 20.1 MB in the end (delta: 46.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 503.12 ms. Allocated memory is still 48.2 MB. Free memory was 25.0 MB in the beginning and 22.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 104.97 ms. Allocated memory is still 48.2 MB. Free memory was 22.9 MB in the beginning and 32.1 MB in the end (delta: -9.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 90.27 ms. Allocated memory is still 48.2 MB. Free memory was 32.1 MB in the beginning and 29.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3637.48 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 29.9 MB in the beginning and 38.1 MB in the end (delta: -8.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 155885.02 ms. Allocated memory is still 58.7 MB. Free memory was 37.8 MB in the beginning and 26.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. * Witness Printer took 127.29 ms. Allocated memory is still 58.7 MB. Free memory was 26.7 MB in the beginning and 23.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 124]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] EXPR 1.0 [L19] static const double one_modf = 1.0; [L19] 1.0 VAL [one_modf=4607182418800017408] [L118] EXPR 0.0 [L118] EXPR 0.0 [L118] EXPR 0.0 / 0.0 [L118] double x = 0.0 / 0.0; [L119] double iptr; [L22] __int32_t i0, i1, j0; [L23] __uint32_t i; VAL [one_modf=4607182418800017408] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [one_modf=4607182418800017408] [L31] COND FALSE !(j0 < 20) VAL [one_modf=4607182418800017408] [L67] COND TRUE j0 > 51 [L68] __uint32_t high; [L69] EXPR x * one_modf [L69] *iptr = x * one_modf [L71] ieee_double_shape_type gh_u; [L72] gh_u.value = (x) [L73] EXPR gh_u.parts.msw [L73] (high) = gh_u.parts.msw [L76] ieee_double_shape_type iw_u; [L77] iw_u.parts.msw = (high & 0x80000000) [L78] iw_u.parts.lsw = (0) [L79] EXPR iw_u.value [L79] (x) = iw_u.value [L81] return x; VAL [one_modf=4607182418800017408] [L120] double res = modf_double(x, &iptr); [L123] EXPR \read(iptr) [L17] return x != x; VAL [one_modf=4607182418800017408] [L123] isnan_double(iptr) && !isnan_double(res) [L17] return x != x; VAL [one_modf=4607182418800017408] [L123] isnan_double(iptr) && !isnan_double(res) VAL [one_modf=4607182418800017408] [L123] COND TRUE isnan_double(iptr) && !isnan_double(res) [L124] reach_error() VAL [one_modf=4607182418800017408] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 155.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 65.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 123 SDtfs, 26 SDslu, 261 SDs, 0 SdLazy, 51 SolverSat, 3 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 17.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 95 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 128.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 5.1s SatisfiabilityAnalysisTime, 81.7s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 114 ConstructedInterpolants, 9 QuantifiedInterpolants, 9738 SizeOfPredicates, 12 NumberOfNonLiveVariables, 267 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...