./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0684a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c1f4b5c4 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0684a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6f0e5ff08d8d375b1c12be7373d81b68e548344f ....................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0684a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6f0e5ff08d8d375b1c12be7373d81b68e548344f .............................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-c1f4b5c [2019-12-08 15:48:57,107 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-08 15:48:57,109 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-08 15:48:57,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-08 15:48:57,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-08 15:48:57,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-08 15:48:57,122 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-08 15:48:57,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-08 15:48:57,126 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-08 15:48:57,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-08 15:48:57,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-08 15:48:57,129 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-08 15:48:57,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-08 15:48:57,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-08 15:48:57,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-08 15:48:57,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-08 15:48:57,134 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-08 15:48:57,135 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-08 15:48:57,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-08 15:48:57,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-08 15:48:57,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-08 15:48:57,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-08 15:48:57,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-08 15:48:57,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-08 15:48:57,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-08 15:48:57,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-08 15:48:57,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-08 15:48:57,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-08 15:48:57,153 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-08 15:48:57,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-08 15:48:57,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-08 15:48:57,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-08 15:48:57,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-08 15:48:57,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-08 15:48:57,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-08 15:48:57,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-08 15:48:57,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-08 15:48:57,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-08 15:48:57,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-08 15:48:57,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-08 15:48:57,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-08 15:48:57,169 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-08 15:48:57,195 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-08 15:48:57,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-08 15:48:57,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-08 15:48:57,197 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-08 15:48:57,198 INFO L138 SettingsManager]: * Use SBE=true [2019-12-08 15:48:57,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-08 15:48:57,198 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-08 15:48:57,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-08 15:48:57,199 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-08 15:48:57,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-08 15:48:57,200 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-08 15:48:57,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-08 15:48:57,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-08 15:48:57,201 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-08 15:48:57,201 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-08 15:48:57,201 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-08 15:48:57,201 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-08 15:48:57,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-08 15:48:57,202 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-08 15:48:57,202 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-08 15:48:57,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-08 15:48:57,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-08 15:48:57,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-08 15:48:57,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-08 15:48:57,203 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-08 15:48:57,204 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-08 15:48:57,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-08 15:48:57,204 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-08 15:48:57,204 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-08 15:48:57,204 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f0e5ff08d8d375b1c12be7373d81b68e548344f [2019-12-08 15:48:57,505 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-08 15:48:57,519 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-08 15:48:57,522 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-08 15:48:57,524 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-08 15:48:57,524 INFO L275 PluginConnector]: CDTParser initialized [2019-12-08 15:48:57,525 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0684a.c [2019-12-08 15:48:57,594 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac6a1e3d2/3d7cd25ddb3c4f028cabdab75f9176f7/FLAGf63fe9f33 [2019-12-08 15:48:58,061 INFO L306 CDTParser]: Found 1 translation units. [2019-12-08 15:48:58,062 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0684a.c [2019-12-08 15:48:58,071 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac6a1e3d2/3d7cd25ddb3c4f028cabdab75f9176f7/FLAGf63fe9f33 [2019-12-08 15:48:58,417 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac6a1e3d2/3d7cd25ddb3c4f028cabdab75f9176f7 [2019-12-08 15:48:58,420 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-08 15:48:58,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-08 15:48:58,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-08 15:48:58,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-08 15:48:58,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-08 15:48:58,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:48:58" (1/1) ... [2019-12-08 15:48:58,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1404cc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:48:58, skipping insertion in model container [2019-12-08 15:48:58,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:48:58" (1/1) ... [2019-12-08 15:48:58,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-08 15:48:58,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-08 15:48:58,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:48:58,815 INFO L203 MainTranslator]: Completed pre-run [2019-12-08 15:48:58,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:48:58,929 INFO L208 MainTranslator]: Completed translation [2019-12-08 15:48:58,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:48:58 WrapperNode [2019-12-08 15:48:58,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-08 15:48:58,931 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-08 15:48:58,931 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-08 15:48:58,931 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-08 15:48:58,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:48:58" (1/1) ... [2019-12-08 15:48:58,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:48:58" (1/1) ... [2019-12-08 15:48:59,023 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-08 15:48:59,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-08 15:48:59,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-08 15:48:59,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-08 15:48:59,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:48:58" (1/1) ... [2019-12-08 15:48:59,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:48:58" (1/1) ... [2019-12-08 15:48:59,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:48:58" (1/1) ... [2019-12-08 15:48:59,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:48:58" (1/1) ... [2019-12-08 15:48:59,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:48:58" (1/1) ... [2019-12-08 15:48:59,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:48:58" (1/1) ... [2019-12-08 15:48:59,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:48:58" (1/1) ... [2019-12-08 15:48:59,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-08 15:48:59,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-08 15:48:59,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-08 15:48:59,109 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-08 15:48:59,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:48:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-08 15:48:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-08 15:48:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-08 15:48:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-08 15:48:59,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-08 15:48:59,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-08 15:48:59,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-08 15:48:59,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-08 15:48:59,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-12-08 15:48:59,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-08 15:49:00,192 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-08 15:49:00,192 INFO L287 CfgBuilder]: Removed 52 assume(true) statements. [2019-12-08 15:49:00,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:49:00 BoogieIcfgContainer [2019-12-08 15:49:00,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-08 15:49:00,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-08 15:49:00,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-08 15:49:00,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-08 15:49:00,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 03:48:58" (1/3) ... [2019-12-08 15:49:00,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5e74aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:49:00, skipping insertion in model container [2019-12-08 15:49:00,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:48:58" (2/3) ... [2019-12-08 15:49:00,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5e74aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:49:00, skipping insertion in model container [2019-12-08 15:49:00,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:49:00" (3/3) ... [2019-12-08 15:49:00,202 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0684a.c [2019-12-08 15:49:00,212 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-08 15:49:00,219 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-08 15:49:00,232 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-08 15:49:00,255 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-08 15:49:00,255 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-08 15:49:00,255 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-08 15:49:00,256 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-08 15:49:00,256 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-08 15:49:00,256 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-08 15:49:00,256 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-08 15:49:00,257 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-08 15:49:00,276 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states. [2019-12-08 15:49:00,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-08 15:49:00,284 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:49:00,285 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:49:00,285 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:49:00,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:49:00,290 INFO L82 PathProgramCache]: Analyzing trace with hash -617567418, now seen corresponding path program 1 times [2019-12-08 15:49:00,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-08 15:49:00,298 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692068622] [2019-12-08 15:49:00,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-08 15:49:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-08 15:49:00,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:49:00,454 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692068622] [2019-12-08 15:49:00,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-08 15:49:00,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-08 15:49:00,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243969356] [2019-12-08 15:49:00,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-08 15:49:00,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-08 15:49:00,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-08 15:49:00,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-08 15:49:00,475 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 2 states. [2019-12-08 15:49:00,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-08 15:49:00,509 INFO L93 Difference]: Finished difference Result 246 states and 412 transitions. [2019-12-08 15:49:00,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-08 15:49:00,510 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-12-08 15:49:00,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-08 15:49:00,522 INFO L225 Difference]: With dead ends: 246 [2019-12-08 15:49:00,522 INFO L226 Difference]: Without dead ends: 120 [2019-12-08 15:49:00,529 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-08 15:49:00,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-12-08 15:49:00,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2019-12-08 15:49:00,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-12-08 15:49:00,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 169 transitions. [2019-12-08 15:49:00,585 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 169 transitions. Word has length 15 [2019-12-08 15:49:00,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-08 15:49:00,585 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 169 transitions. [2019-12-08 15:49:00,585 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-08 15:49:00,585 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 169 transitions. [2019-12-08 15:49:00,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-08 15:49:00,586 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:49:00,587 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:49:00,587 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:49:00,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:49:00,587 INFO L82 PathProgramCache]: Analyzing trace with hash -397782484, now seen corresponding path program 1 times [2019-12-08 15:49:00,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-08 15:49:00,588 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3869722] [2019-12-08 15:49:00,588 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-08 15:49:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-08 15:49:00,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:49:00,735 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3869722] [2019-12-08 15:49:00,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-08 15:49:00,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-08 15:49:00,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352817295] [2019-12-08 15:49:00,739 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-08 15:49:00,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-08 15:49:00,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-08 15:49:00,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-08 15:49:00,742 INFO L87 Difference]: Start difference. First operand 120 states and 169 transitions. Second operand 3 states. [2019-12-08 15:49:00,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-08 15:49:00,797 INFO L93 Difference]: Finished difference Result 229 states and 326 transitions. [2019-12-08 15:49:00,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-08 15:49:00,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-12-08 15:49:00,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-08 15:49:00,799 INFO L225 Difference]: With dead ends: 229 [2019-12-08 15:49:00,800 INFO L226 Difference]: Without dead ends: 120 [2019-12-08 15:49:00,804 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-08 15:49:00,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-12-08 15:49:00,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2019-12-08 15:49:00,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-12-08 15:49:00,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 168 transitions. [2019-12-08 15:49:00,819 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 168 transitions. Word has length 18 [2019-12-08 15:49:00,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-08 15:49:00,820 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 168 transitions. [2019-12-08 15:49:00,820 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-08 15:49:00,820 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 168 transitions. [2019-12-08 15:49:00,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-08 15:49:00,821 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:49:00,821 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:49:00,821 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:49:00,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:49:00,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1006577033, now seen corresponding path program 1 times [2019-12-08 15:49:00,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-08 15:49:00,822 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188514303] [2019-12-08 15:49:00,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-08 15:49:01,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-08 15:49:01,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-08 15:49:01,263 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-08 15:49:01,264 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-08 15:49:01,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 03:49:01 BoogieIcfgContainer [2019-12-08 15:49:01,362 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-08 15:49:01,363 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-08 15:49:01,364 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-08 15:49:01,367 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-08 15:49:01,368 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:49:00" (3/4) ... [2019-12-08 15:49:01,372 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-08 15:49:01,372 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-08 15:49:01,376 INFO L168 Benchmark]: Toolchain (without parser) took 2952.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 963.0 MB in the beginning and 998.5 MB in the end (delta: -35.4 MB). Peak memory consumption was 110.8 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:01,378 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-08 15:49:01,380 INFO L168 Benchmark]: CACSL2BoogieTranslator took 507.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 963.0 MB in the beginning and 1.1 GB in the end (delta: -167.1 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:01,381 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:01,382 INFO L168 Benchmark]: Boogie Preprocessor took 84.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:01,383 INFO L168 Benchmark]: RCFGBuilder took 1085.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:01,385 INFO L168 Benchmark]: TraceAbstraction took 1167.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 998.5 MB in the end (delta: 59.1 MB). Peak memory consumption was 59.1 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:01,390 INFO L168 Benchmark]: Witness Printer took 9.98 ms. Allocated memory is still 1.2 GB. Free memory is still 998.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-08 15:49:01,406 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 507.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 963.0 MB in the beginning and 1.1 GB in the end (delta: -167.1 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 92.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 84.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1085.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1167.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 998.5 MB in the end (delta: 59.1 MB). Peak memory consumption was 59.1 MB. Max. memory is 11.5 GB. * Witness Printer took 9.98 ms. Allocated memory is still 1.2 GB. Free memory is still 998.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 286]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 162, overapproximation of someUnaryDOUBLEoperation at line 52, overapproximation of someBinaryArithmeticDOUBLEoperation at line 163, overapproximation of bitwiseAnd at line 160, overapproximation of someBinaryDOUBLEComparisonOperation at line 285. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L276] double x = __VERIFIER_nondet_double(); [L277] double y = 1.0 / 0.0; [L260] __int32_t hx; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L262] ieee_double_shape_type gh_u; [L263] gh_u.value = (x) [L264] EXPR gh_u.parts.msw [L264] (hx) = gh_u.parts.msw [L266] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L280] isfinite_double(x) && isinf_double(y) [L246] __int32_t hx, lx; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L248] ieee_double_shape_type ew_u; [L249] ew_u.value = (x) [L250] EXPR ew_u.parts.msw [L250] (hx) = ew_u.parts.msw [L251] EXPR ew_u.parts.lsw [L251] (lx) = ew_u.parts.lsw [L253] hx &= 0x7fffffff [L254] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L255] hx = 0x7ff00000 - hx [L256] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L280] isfinite_double(x) && isinf_double(y) VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L280] COND TRUE isfinite_double(x) && isinf_double(y) [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L282] double res = __ieee754_atan2(y, x); [L285] COND TRUE res != pi_o_2 VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L286] __VERIFIER_error() VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 124 locations, 1 error locations. Result: UNSAFE, OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 343 SDtfs, 0 SDslu, 163 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=124occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 502 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-c1f4b5c [2019-12-08 15:49:03,451 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-08 15:49:03,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-08 15:49:03,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-08 15:49:03,469 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-08 15:49:03,470 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-08 15:49:03,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-08 15:49:03,473 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-08 15:49:03,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-08 15:49:03,476 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-08 15:49:03,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-08 15:49:03,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-08 15:49:03,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-08 15:49:03,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-08 15:49:03,481 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-08 15:49:03,482 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-08 15:49:03,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-08 15:49:03,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-08 15:49:03,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-08 15:49:03,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-08 15:49:03,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-08 15:49:03,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-08 15:49:03,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-08 15:49:03,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-08 15:49:03,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-08 15:49:03,496 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-08 15:49:03,496 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-08 15:49:03,497 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-08 15:49:03,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-08 15:49:03,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-08 15:49:03,499 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-08 15:49:03,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-08 15:49:03,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-08 15:49:03,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-08 15:49:03,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-08 15:49:03,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-08 15:49:03,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-08 15:49:03,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-08 15:49:03,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-08 15:49:03,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-08 15:49:03,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-08 15:49:03,507 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-08 15:49:03,532 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-08 15:49:03,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-08 15:49:03,534 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-08 15:49:03,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-08 15:49:03,534 INFO L138 SettingsManager]: * Use SBE=true [2019-12-08 15:49:03,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-08 15:49:03,535 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-08 15:49:03,535 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-08 15:49:03,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-08 15:49:03,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-08 15:49:03,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-08 15:49:03,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-08 15:49:03,536 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-08 15:49:03,536 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-08 15:49:03,537 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-08 15:49:03,537 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-08 15:49:03,537 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-08 15:49:03,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-08 15:49:03,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-08 15:49:03,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-08 15:49:03,538 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-08 15:49:03,538 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-08 15:49:03,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-08 15:49:03,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-08 15:49:03,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-08 15:49:03,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-08 15:49:03,540 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-08 15:49:03,540 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-08 15:49:03,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-08 15:49:03,540 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-08 15:49:03,540 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-08 15:49:03,541 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f0e5ff08d8d375b1c12be7373d81b68e548344f [2019-12-08 15:49:03,864 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-08 15:49:03,877 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-08 15:49:03,881 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-08 15:49:03,882 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-08 15:49:03,883 INFO L275 PluginConnector]: CDTParser initialized [2019-12-08 15:49:03,884 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0684a.c [2019-12-08 15:49:03,945 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51de34c07/42ee2f4a89e84020a3323374fcfeaaae/FLAGe01d3a233 [2019-12-08 15:49:04,446 INFO L306 CDTParser]: Found 1 translation units. [2019-12-08 15:49:04,447 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0684a.c [2019-12-08 15:49:04,456 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51de34c07/42ee2f4a89e84020a3323374fcfeaaae/FLAGe01d3a233 [2019-12-08 15:49:04,786 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51de34c07/42ee2f4a89e84020a3323374fcfeaaae [2019-12-08 15:49:04,790 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-08 15:49:04,792 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-08 15:49:04,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-08 15:49:04,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-08 15:49:04,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-08 15:49:04,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:49:04" (1/1) ... [2019-12-08 15:49:04,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32baf121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:04, skipping insertion in model container [2019-12-08 15:49:04,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:49:04" (1/1) ... [2019-12-08 15:49:04,810 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-08 15:49:04,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-08 15:49:05,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:49:05,207 INFO L203 MainTranslator]: Completed pre-run [2019-12-08 15:49:05,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:49:05,336 INFO L208 MainTranslator]: Completed translation [2019-12-08 15:49:05,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:05 WrapperNode [2019-12-08 15:49:05,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-08 15:49:05,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-08 15:49:05,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-08 15:49:05,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-08 15:49:05,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:05" (1/1) ... [2019-12-08 15:49:05,365 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:05" (1/1) ... [2019-12-08 15:49:05,428 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-08 15:49:05,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-08 15:49:05,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-08 15:49:05,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-08 15:49:05,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:05" (1/1) ... [2019-12-08 15:49:05,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:05" (1/1) ... [2019-12-08 15:49:05,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:05" (1/1) ... [2019-12-08 15:49:05,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:05" (1/1) ... [2019-12-08 15:49:05,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:05" (1/1) ... [2019-12-08 15:49:05,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:05" (1/1) ... [2019-12-08 15:49:05,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:05" (1/1) ... [2019-12-08 15:49:05,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-08 15:49:05,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-08 15:49:05,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-08 15:49:05,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-08 15:49:05,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-08 15:49:05,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-08 15:49:05,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-08 15:49:05,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-08 15:49:05,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-12-08 15:49:05,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-08 15:49:05,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-08 15:49:05,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-08 15:49:05,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-08 15:49:05,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-08 15:49:42,041 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-08 15:49:42,041 INFO L287 CfgBuilder]: Removed 52 assume(true) statements. [2019-12-08 15:49:42,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:49:42 BoogieIcfgContainer [2019-12-08 15:49:42,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-08 15:49:42,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-08 15:49:42,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-08 15:49:42,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-08 15:49:42,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 03:49:04" (1/3) ... [2019-12-08 15:49:42,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ee67ae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:49:42, skipping insertion in model container [2019-12-08 15:49:42,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:05" (2/3) ... [2019-12-08 15:49:42,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ee67ae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:49:42, skipping insertion in model container [2019-12-08 15:49:42,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:49:42" (3/3) ... [2019-12-08 15:49:42,051 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0684a.c [2019-12-08 15:49:42,058 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-08 15:49:42,065 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-08 15:49:42,074 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-08 15:49:42,097 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-08 15:49:42,097 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-08 15:49:42,097 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-08 15:49:42,097 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-08 15:49:42,098 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-08 15:49:42,098 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-08 15:49:42,098 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-08 15:49:42,098 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-08 15:49:42,115 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states. [2019-12-08 15:49:42,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-08 15:49:42,121 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:49:42,122 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:49:42,122 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:49:42,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:49:42,127 INFO L82 PathProgramCache]: Analyzing trace with hash -617567418, now seen corresponding path program 1 times [2019-12-08 15:49:42,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-08 15:49:42,140 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [64397742] [2019-12-08 15:49:42,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-08 15:49:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-08 15:49:42,567 INFO L264 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-08 15:49:42,572 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-08 15:49:42,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:49:42,585 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-08 15:49:42,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:49:42,594 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [64397742] [2019-12-08 15:49:42,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-08 15:49:42,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-08 15:49:42,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522475035] [2019-12-08 15:49:42,601 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-08 15:49:42,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-08 15:49:42,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-08 15:49:42,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-08 15:49:42,619 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 2 states. [2019-12-08 15:49:42,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-08 15:49:42,655 INFO L93 Difference]: Finished difference Result 246 states and 412 transitions. [2019-12-08 15:49:42,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-08 15:49:42,657 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2019-12-08 15:49:42,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-08 15:49:42,671 INFO L225 Difference]: With dead ends: 246 [2019-12-08 15:49:42,672 INFO L226 Difference]: Without dead ends: 120 [2019-12-08 15:49:42,676 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-08 15:49:42,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-12-08 15:49:42,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2019-12-08 15:49:42,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-12-08 15:49:42,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 169 transitions. [2019-12-08 15:49:42,727 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 169 transitions. Word has length 15 [2019-12-08 15:49:42,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-08 15:49:42,728 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 169 transitions. [2019-12-08 15:49:42,728 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-08 15:49:42,728 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 169 transitions. [2019-12-08 15:49:42,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-08 15:49:42,729 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:49:42,730 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:49:42,943 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-08 15:49:42,943 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:49:42,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:49:42,944 INFO L82 PathProgramCache]: Analyzing trace with hash -397782484, now seen corresponding path program 1 times [2019-12-08 15:49:42,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-08 15:49:42,946 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [846094948] [2019-12-08 15:49:42,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-08 15:49:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-08 15:49:43,409 INFO L264 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-08 15:49:43,411 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-08 15:49:43,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:49:43,427 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-08 15:49:43,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:49:43,431 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [846094948] [2019-12-08 15:49:43,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-08 15:49:43,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-08 15:49:43,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034644856] [2019-12-08 15:49:43,433 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-08 15:49:43,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-08 15:49:43,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-08 15:49:43,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-08 15:49:43,434 INFO L87 Difference]: Start difference. First operand 120 states and 169 transitions. Second operand 3 states. [2019-12-08 15:49:43,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-08 15:49:43,487 INFO L93 Difference]: Finished difference Result 229 states and 326 transitions. [2019-12-08 15:49:43,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-08 15:49:43,494 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-12-08 15:49:43,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-08 15:49:43,496 INFO L225 Difference]: With dead ends: 229 [2019-12-08 15:49:43,497 INFO L226 Difference]: Without dead ends: 120 [2019-12-08 15:49:43,498 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-08 15:49:43,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-12-08 15:49:43,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2019-12-08 15:49:43,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-12-08 15:49:43,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 168 transitions. [2019-12-08 15:49:43,511 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 168 transitions. Word has length 18 [2019-12-08 15:49:43,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-08 15:49:43,511 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 168 transitions. [2019-12-08 15:49:43,511 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-08 15:49:43,511 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 168 transitions. [2019-12-08 15:49:43,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-08 15:49:43,512 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:49:43,513 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:49:43,727 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-08 15:49:43,728 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:49:43,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:49:43,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1006577033, now seen corresponding path program 1 times [2019-12-08 15:49:43,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-08 15:49:43,729 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1075677637] [2019-12-08 15:49:43,730 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-08 15:49:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-08 15:49:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-08 15:49:45,515 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-08 15:49:45,516 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-08 15:49:45,724 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-08 15:49:45,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 03:49:45 BoogieIcfgContainer [2019-12-08 15:49:45,806 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-08 15:49:45,807 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-08 15:49:45,807 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-08 15:49:45,810 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-08 15:49:45,811 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:49:42" (3/4) ... [2019-12-08 15:49:45,817 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-08 15:49:45,980 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-12-08 15:49:45,980 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-08 15:49:45,983 INFO L168 Benchmark]: Toolchain (without parser) took 41190.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 953.6 MB in the beginning and 921.8 MB in the end (delta: 31.8 MB). Peak memory consumption was 179.2 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:45,983 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-08 15:49:45,985 INFO L168 Benchmark]: CACSL2BoogieTranslator took 543.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 953.6 MB in the beginning and 1.1 GB in the end (delta: -177.6 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:45,985 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:45,985 INFO L168 Benchmark]: Boogie Preprocessor took 78.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-08 15:49:45,986 INFO L168 Benchmark]: RCFGBuilder took 36535.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 84.3 MB). Peak memory consumption was 84.3 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:45,987 INFO L168 Benchmark]: TraceAbstraction took 3762.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 928.3 MB in the end (delta: 105.6 MB). Peak memory consumption was 105.6 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:45,987 INFO L168 Benchmark]: Witness Printer took 172.96 ms. Allocated memory is still 1.2 GB. Free memory was 928.3 MB in the beginning and 921.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-12-08 15:49:45,989 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 543.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 953.6 MB in the beginning and 1.1 GB in the end (delta: -177.6 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 91.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 78.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 36535.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 84.3 MB). Peak memory consumption was 84.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3762.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 928.3 MB in the end (delta: 105.6 MB). Peak memory consumption was 105.6 MB. Max. memory is 11.5 GB. * Witness Printer took 172.96 ms. Allocated memory is still 1.2 GB. Free memory was 928.3 MB in the beginning and 921.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 286]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={7:0}, atanhi_atan={-2147483645:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L276] double x = __VERIFIER_nondet_double(); [L277] double y = 1.0 / 0.0; [L260] __int32_t hx; VAL [aT_atan={7:0}, atanhi_atan={-2147483645:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L262] ieee_double_shape_type gh_u; [L263] gh_u.value = (x) [L264] EXPR gh_u.parts.msw [L264] (hx) = gh_u.parts.msw [L266] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [aT_atan={7:0}, atanhi_atan={-2147483645:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L280] isfinite_double(x) && isinf_double(y) [L246] __int32_t hx, lx; VAL [aT_atan={7:0}, atanhi_atan={-2147483645:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L248] ieee_double_shape_type ew_u; [L249] ew_u.value = (x) [L250] EXPR ew_u.parts.msw [L250] (hx) = ew_u.parts.msw [L251] EXPR ew_u.parts.lsw [L251] (lx) = ew_u.parts.lsw [L253] hx &= 0x7fffffff [L254] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L255] hx = 0x7ff00000 - hx [L256] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [aT_atan={7:0}, atanhi_atan={-2147483645:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L280] isfinite_double(x) && isinf_double(y) VAL [aT_atan={7:0}, atanhi_atan={-2147483645:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L280] COND TRUE isfinite_double(x) && isinf_double(y) [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; VAL [aT_atan={7:0}, atanhi_atan={-2147483645:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={-2147483645:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={-2147483645:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; VAL [aT_atan={7:0}, atanhi_atan={-2147483645:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L282] double res = __ieee754_atan2(y, x); [L285] COND TRUE res != pi_o_2 VAL [aT_atan={7:0}, atanhi_atan={-2147483645:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L286] __VERIFIER_error() VAL [aT_atan={7:0}, atanhi_atan={-2147483645:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 124 locations, 1 error locations. Result: UNSAFE, OverallTime: 3.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 343 SDtfs, 0 SDslu, 163 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred 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, 1.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 1004 SizeOfPredicates, 0 NumberOfNonLiveVariables, 252 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...