./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0670.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0670.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb50b7c19c9d21598c287653a966a53d9b3d656b ......................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0670.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb50b7c19c9d21598c287653a966a53d9b3d656b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:57:03,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:57:03,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:57:03,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:57:03,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:57:03,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:57:03,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:57:03,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:57:03,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:57:03,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:57:03,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:57:03,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:57:03,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:57:03,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:57:03,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:57:03,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:57:03,491 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:57:03,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:57:03,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:57:03,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:57:03,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:57:03,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:57:03,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:57:03,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:57:03,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:57:03,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:57:03,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:57:03,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:57:03,533 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:57:03,539 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:57:03,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:57:03,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:57:03,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:57:03,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:57:03,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:57:03,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:57:03,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:57:03,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:57:03,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:57:03,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:57:03,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:57:03,553 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:57:03,608 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:57:03,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:57:03,614 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:57:03,616 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:57:03,616 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:57:03,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:57:03,617 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:57:03,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:57:03,617 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:57:03,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:57:03,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:57:03,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:57:03,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:57:03,620 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:57:03,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:57:03,621 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:57:03,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:57:03,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:57:03,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:57:03,622 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:57:03,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:57:03,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:57:03,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:57:03,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:57:03,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:57:03,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:57:03,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:57:03,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:57:03,624 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:57:03,625 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb50b7c19c9d21598c287653a966a53d9b3d656b [2020-11-30 00:57:04,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:57:04,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:57:04,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:57:04,094 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:57:04,095 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:57:04,097 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0670.c [2020-11-30 00:57:04,211 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/data/7e5310a92/898b94371e29499294a94e6c1e83106c/FLAGdc2b2dc8e [2020-11-30 00:57:04,786 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:57:04,787 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/sv-benchmarks/c/float-newlib/double_req_bl_0670.c [2020-11-30 00:57:04,797 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/data/7e5310a92/898b94371e29499294a94e6c1e83106c/FLAGdc2b2dc8e [2020-11-30 00:57:05,121 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/data/7e5310a92/898b94371e29499294a94e6c1e83106c [2020-11-30 00:57:05,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:57:05,125 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:57:05,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:57:05,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:57:05,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:57:05,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:57:05" (1/1) ... [2020-11-30 00:57:05,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@482ab695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:05, skipping insertion in model container [2020-11-30 00:57:05,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:57:05" (1/1) ... [2020-11-30 00:57:05,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:57:05,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:57:05,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:57:05,491 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:57:05,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:57:05,583 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:57:05,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:05 WrapperNode [2020-11-30 00:57:05,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:57:05,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:57:05,585 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:57:05,585 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:57:05,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:05" (1/1) ... [2020-11-30 00:57:05,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:05" (1/1) ... [2020-11-30 00:57:05,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:57:05,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:57:05,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:57:05,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:57:05,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:05" (1/1) ... [2020-11-30 00:57:05,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:05" (1/1) ... [2020-11-30 00:57:05,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:05" (1/1) ... [2020-11-30 00:57:05,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:05" (1/1) ... [2020-11-30 00:57:05,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:05" (1/1) ... [2020-11-30 00:57:05,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:05" (1/1) ... [2020-11-30 00:57:05,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:05" (1/1) ... [2020-11-30 00:57:05,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:57:05,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:57:05,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:57:05,816 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:57:05,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:57:05,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:57:05,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:57:05,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 00:57:05,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:57:05,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 00:57:05,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:57:05,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:57:05,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:57:05,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-30 00:57:05,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:57:07,554 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:57:07,558 INFO L298 CfgBuilder]: Removed 52 assume(true) statements. [2020-11-30 00:57:07,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:57:07 BoogieIcfgContainer [2020-11-30 00:57:07,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:57:07,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:57:07,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:57:07,565 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:57:07,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:57:05" (1/3) ... [2020-11-30 00:57:07,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15102f02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:57:07, skipping insertion in model container [2020-11-30 00:57:07,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:05" (2/3) ... [2020-11-30 00:57:07,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15102f02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:57:07, skipping insertion in model container [2020-11-30 00:57:07,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:57:07" (3/3) ... [2020-11-30 00:57:07,569 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0670.c [2020-11-30 00:57:07,579 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:57:07,585 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:57:07,601 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:57:07,636 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:57:07,637 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:57:07,637 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:57:07,637 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:57:07,637 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:57:07,638 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:57:07,638 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:57:07,638 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:57:07,657 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states. [2020-11-30 00:57:07,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:57:07,664 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:57:07,664 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:57:07,665 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:57:07,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:57:07,672 INFO L82 PathProgramCache]: Analyzing trace with hash 2082511170, now seen corresponding path program 1 times [2020-11-30 00:57:07,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:57:07,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718608050] [2020-11-30 00:57:07,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:57:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:57:07,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:57:07,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718608050] [2020-11-30 00:57:07,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:57:07,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:57:07,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771775285] [2020-11-30 00:57:07,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:57:07,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:57:07,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:57:07,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:57:07,971 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 2 states. [2020-11-30 00:57:08,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:57:08,006 INFO L93 Difference]: Finished difference Result 233 states and 389 transitions. [2020-11-30 00:57:08,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:57:08,008 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2020-11-30 00:57:08,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:57:08,023 INFO L225 Difference]: With dead ends: 233 [2020-11-30 00:57:08,023 INFO L226 Difference]: Without dead ends: 115 [2020-11-30 00:57:08,027 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:57:08,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-11-30 00:57:08,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-11-30 00:57:08,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-30 00:57:08,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 164 transitions. [2020-11-30 00:57:08,083 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 164 transitions. Word has length 14 [2020-11-30 00:57:08,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:57:08,084 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 164 transitions. [2020-11-30 00:57:08,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:57:08,085 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 164 transitions. [2020-11-30 00:57:08,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 00:57:08,086 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:57:08,086 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:57:08,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:57:08,087 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:57:08,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:57:08,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1907166553, now seen corresponding path program 1 times [2020-11-30 00:57:08,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:57:08,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060472879] [2020-11-30 00:57:08,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:57:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:57:08,283 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:57:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:57:08,397 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:57:08,467 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:57:08,469 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:57:08,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:57:08,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:57:08 BoogieIcfgContainer [2020-11-30 00:57:08,562 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:57:08,564 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:57:08,565 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:57:08,565 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:57:08,566 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:57:07" (3/4) ... [2020-11-30 00:57:08,571 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:57:08,571 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:57:08,577 INFO L168 Benchmark]: Toolchain (without parser) took 3446.69 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 40.8 MB in the beginning and 36.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:57:08,578 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 77.6 MB. Free memory was 57.4 MB in the beginning and 57.4 MB in the end (delta: 35.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:57:08,581 INFO L168 Benchmark]: CACSL2BoogieTranslator took 444.99 ms. Allocated memory is still 77.6 MB. Free memory was 40.6 MB in the beginning and 49.7 MB in the end (delta: -9.0 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:57:08,582 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.63 ms. Allocated memory is still 77.6 MB. Free memory was 49.7 MB in the beginning and 46.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:57:08,583 INFO L168 Benchmark]: Boogie Preprocessor took 130.03 ms. Allocated memory is still 77.6 MB. Free memory was 45.9 MB in the beginning and 42.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:57:08,585 INFO L168 Benchmark]: RCFGBuilder took 1745.25 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 42.4 MB in the beginning and 47.3 MB in the end (delta: -4.9 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:57:08,587 INFO L168 Benchmark]: TraceAbstraction took 1000.91 ms. Allocated memory is still 94.4 MB. Free memory was 46.8 MB in the beginning and 37.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:57:08,590 INFO L168 Benchmark]: Witness Printer took 7.63 ms. Allocated memory is still 94.4 MB. Free memory was 37.4 MB in the beginning and 36.8 MB in the end (delta: 576.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:57:08,599 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 77.6 MB. Free memory was 57.4 MB in the beginning and 57.4 MB in the end (delta: 35.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 444.99 ms. Allocated memory is still 77.6 MB. Free memory was 40.6 MB in the beginning and 49.7 MB in the end (delta: -9.0 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 98.63 ms. Allocated memory is still 77.6 MB. Free memory was 49.7 MB in the beginning and 46.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 130.03 ms. Allocated memory is still 77.6 MB. Free memory was 45.9 MB in the beginning and 42.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1745.25 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 42.4 MB in the beginning and 47.3 MB in the end (delta: -4.9 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1000.91 ms. Allocated memory is still 94.4 MB. Free memory was 46.8 MB in the beginning and 37.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. * Witness Printer took 7.63 ms. Allocated memory is still 94.4 MB. Free memory was 37.4 MB in the beginning and 36.8 MB in the end (delta: 576.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 247. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] 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, }; [L62-L64] 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; [L141-L142] 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={11:0}, atanlo_atan={10:0}, 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] [L255] double x = __VERIFIER_nondet_double(); [L256] double y = __VERIFIER_nondet_double(); [L247] return x != x; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, 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] [L258] isnan_double(x) || isnan_double(y) VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, 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] [L258] COND TRUE isnan_double(x) || isnan_double(y) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, 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] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, 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] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, 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] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, 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] [L260] double res = __ieee754_atan2(y, x); [L247] return x != x; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, 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] [L263] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_0670.c", 3, "reach_error") VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, 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, 120 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 169 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 169 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:57:11,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:57:11,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:57:11,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-30 00:57:11,759 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:57:11,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:57:11,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:57:11,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:57:11,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:57:11,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:57:11,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:57:11,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:57:11,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:57:11,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:57:11,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:57:11,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:57:11,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:57:11,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:57:11,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:57:11,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:57:11,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:57:11,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:57:11,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:57:11,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:57:11,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:57:11,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:57:11,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:57:11,818 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:57:11,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:57:11,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:57:11,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:57:11,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:57:11,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:57:11,827 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-30 00:57:11,865 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:57:11,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:57:11,867 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:57:11,867 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:57:11,867 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:57:11,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:57:11,868 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:57:11,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:57:11,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:57:11,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:57:11,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:57:11,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:57:11,870 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 00:57:11,870 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 00:57:11,871 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:57:11,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:57:11,871 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:57:11,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:57:11,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:57:11,872 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:57:11,873 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:57:11,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:57:11,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:57:11,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:57:11,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:57:11,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:57:11,875 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 00:57:11,875 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 00:57:11,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:57:11,875 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:57:11,876 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 00:57:11,876 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb50b7c19c9d21598c287653a966a53d9b3d656b [2020-11-30 00:57:12,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:57:12,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:57:12,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:57:12,379 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:57:12,380 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:57:12,381 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0670.c [2020-11-30 00:57:12,471 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/data/be16c3f83/10ee9c9fe1114fd0bb349f1efb1fa2c0/FLAG8522f8bd0 [2020-11-30 00:57:13,147 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:57:13,148 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/sv-benchmarks/c/float-newlib/double_req_bl_0670.c [2020-11-30 00:57:13,158 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/data/be16c3f83/10ee9c9fe1114fd0bb349f1efb1fa2c0/FLAG8522f8bd0 [2020-11-30 00:57:13,457 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/data/be16c3f83/10ee9c9fe1114fd0bb349f1efb1fa2c0 [2020-11-30 00:57:13,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:57:13,463 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:57:13,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:57:13,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:57:13,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:57:13,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:57:13" (1/1) ... [2020-11-30 00:57:13,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41d81335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:13, skipping insertion in model container [2020-11-30 00:57:13,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:57:13" (1/1) ... [2020-11-30 00:57:13,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:57:13,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:57:13,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:57:14,010 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:57:14,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:57:14,146 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:57:14,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:14 WrapperNode [2020-11-30 00:57:14,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:57:14,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:57:14,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:57:14,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:57:14,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:14" (1/1) ... [2020-11-30 00:57:14,180 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:14" (1/1) ... [2020-11-30 00:57:14,233 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:57:14,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:57:14,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:57:14,235 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:57:14,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:14" (1/1) ... [2020-11-30 00:57:14,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:14" (1/1) ... [2020-11-30 00:57:14,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:14" (1/1) ... [2020-11-30 00:57:14,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:14" (1/1) ... [2020-11-30 00:57:14,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:14" (1/1) ... [2020-11-30 00:57:14,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:14" (1/1) ... [2020-11-30 00:57:14,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:14" (1/1) ... [2020-11-30 00:57:14,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:57:14,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:57:14,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:57:14,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:57:14,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:57:14,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-30 00:57:14,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-30 00:57:14,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 00:57:14,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:57:14,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-11-30 00:57:14,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 00:57:14,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:57:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:57:14,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 00:57:14,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:57:56,902 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:57:56,902 INFO L298 CfgBuilder]: Removed 52 assume(true) statements. [2020-11-30 00:57:56,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:57:56 BoogieIcfgContainer [2020-11-30 00:57:56,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:57:56,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:57:56,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:57:56,911 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:57:56,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:57:13" (1/3) ... [2020-11-30 00:57:56,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b0418cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:57:56, skipping insertion in model container [2020-11-30 00:57:56,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:57:14" (2/3) ... [2020-11-30 00:57:56,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b0418cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:57:56, skipping insertion in model container [2020-11-30 00:57:56,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:57:56" (3/3) ... [2020-11-30 00:57:56,915 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0670.c [2020-11-30 00:57:56,928 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:57:56,938 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:57:56,952 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:57:56,998 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:57:57,000 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:57:57,000 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:57:57,000 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:57:57,000 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:57:57,001 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:57:57,001 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:57:57,001 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:57:57,024 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states. [2020-11-30 00:57:57,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:57:57,031 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:57:57,032 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:57:57,032 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:57:57,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:57:57,039 INFO L82 PathProgramCache]: Analyzing trace with hash 2082511170, now seen corresponding path program 1 times [2020-11-30 00:57:57,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:57:57,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [754807007] [2020-11-30 00:57:57,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 00:57:57,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:57:57,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 00:57:57,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:57:57,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:57:57,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:57:57,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:57:57,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [754807007] [2020-11-30 00:57:57,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:57:57,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 00:57:57,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74499270] [2020-11-30 00:57:57,599 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:57:57,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:57:57,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:57:57,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:57:57,617 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 2 states. [2020-11-30 00:57:57,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:57:57,654 INFO L93 Difference]: Finished difference Result 233 states and 389 transitions. [2020-11-30 00:57:57,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:57:57,656 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2020-11-30 00:57:57,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:57:57,669 INFO L225 Difference]: With dead ends: 233 [2020-11-30 00:57:57,670 INFO L226 Difference]: Without dead ends: 115 [2020-11-30 00:57:57,673 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:57:57,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-11-30 00:57:57,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-11-30 00:57:57,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-30 00:57:57,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 164 transitions. [2020-11-30 00:57:57,725 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 164 transitions. Word has length 14 [2020-11-30 00:57:57,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:57:57,726 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 164 transitions. [2020-11-30 00:57:57,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:57:57,726 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 164 transitions. [2020-11-30 00:57:57,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 00:57:57,727 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:57:57,728 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:57:57,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 00:57:57,943 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:57:57,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:57:57,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1907166553, now seen corresponding path program 1 times [2020-11-30 00:57:57,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:57:57,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1043920164] [2020-11-30 00:57:57,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 00:57:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:57:58,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-30 00:57:58,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:57:58,598 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:57:59,130 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-11-30 00:57:59,142 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:57:59,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:57:59,624 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:58:02,626 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-11-30 00:58:04,642 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-11-30 00:58:07,529 WARN L193 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-11-30 00:58:10,405 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-11-30 00:58:10,414 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:58:10,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:10,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1043920164] [2020-11-30 00:58:10,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:10,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17 [2020-11-30 00:58:10,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076233308] [2020-11-30 00:58:10,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-30 00:58:10,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:58:10,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-30 00:58:10,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2020-11-30 00:58:10,502 INFO L87 Difference]: Start difference. First operand 115 states and 164 transitions. Second operand 17 states. [2020-11-30 00:58:16,946 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 26 DAG size of output: 19 [2020-11-30 00:58:20,541 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 28 DAG size of output: 21 [2020-11-30 01:00:53,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:00:53,774 INFO L93 Difference]: Finished difference Result 244 states and 339 transitions. [2020-11-30 01:00:53,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-30 01:00:53,797 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 16 [2020-11-30 01:00:53,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:00:53,803 INFO L225 Difference]: With dead ends: 244 [2020-11-30 01:00:53,803 INFO L226 Difference]: Without dead ends: 239 [2020-11-30 01:00:53,805 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2020-11-30 01:00:53,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-11-30 01:00:53,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 123. [2020-11-30 01:00:53,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-11-30 01:00:53,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 172 transitions. [2020-11-30 01:00:53,828 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 172 transitions. Word has length 16 [2020-11-30 01:00:53,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:00:53,829 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 172 transitions. [2020-11-30 01:00:53,829 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-30 01:00:53,829 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 172 transitions. [2020-11-30 01:00:53,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 01:00:53,830 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:00:53,831 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:00:54,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 01:00:54,047 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:00:54,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:54,047 INFO L82 PathProgramCache]: Analyzing trace with hash 2144381910, now seen corresponding path program 1 times [2020-11-30 01:00:54,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:00:54,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1988915153] [2020-11-30 01:00:54,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 01:00:54,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:00:54,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-30 01:00:54,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:00:54,721 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:00:55,254 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-11-30 01:00:55,265 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:00:55,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:00:55,641 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:00:57,967 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-11-30 01:01:00,944 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-11-30 01:01:03,790 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-11-30 01:01:03,798 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 01:01:03,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:01:03,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1988915153] [2020-11-30 01:01:03,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:01:03,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2020-11-30 01:01:03,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557716993] [2020-11-30 01:01:03,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-30 01:01:03,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:01:03,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-30 01:01:03,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-11-30 01:01:03,882 INFO L87 Difference]: Start difference. First operand 123 states and 172 transitions. Second operand 15 states. [2020-11-30 01:01:07,933 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 23 [2020-11-30 01:01:09,891 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 13 [2020-11-30 01:01:12,017 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 33 DAG size of output: 16 [2020-11-30 01:01:13,669 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 35 DAG size of output: 18 [2020-11-30 01:01:50,180 WARN L193 SmtUtils]: Spent 2.16 s on a formula simplification that was a NOOP. DAG size: 20 [2020-11-30 01:02:06,563 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 26 [2020-11-30 01:03:18,828 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 16 [2020-11-30 01:03:51,817 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 16 [2020-11-30 01:04:07,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:07,154 INFO L93 Difference]: Finished difference Result 261 states and 358 transitions. [2020-11-30 01:04:07,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-30 01:04:07,173 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 17 [2020-11-30 01:04:07,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:07,176 INFO L225 Difference]: With dead ends: 261 [2020-11-30 01:04:07,176 INFO L226 Difference]: Without dead ends: 256 [2020-11-30 01:04:07,177 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 24.4s TimeCoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2020-11-30 01:04:07,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-11-30 01:04:07,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 128. [2020-11-30 01:04:07,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-11-30 01:04:07,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 179 transitions. [2020-11-30 01:04:07,210 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 179 transitions. Word has length 17 [2020-11-30 01:04:07,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:07,210 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 179 transitions. [2020-11-30 01:04:07,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-30 01:04:07,210 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 179 transitions. [2020-11-30 01:04:07,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 01:04:07,212 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:07,212 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:07,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 01:04:07,421 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:07,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:07,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1759093575, now seen corresponding path program 1 times [2020-11-30 01:04:07,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:04:07,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [26914506] [2020-11-30 01:04:07,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-30 01:04:07,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:04:07,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-30 01:04:07,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:04:07,919 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:04:08,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:08,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:04:08,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:04:08,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [26914506] [2020-11-30 01:04:08,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:04:08,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2020-11-30 01:04:08,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086143695] [2020-11-30 01:04:08,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-30 01:04:08,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:04:08,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-30 01:04:08,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-11-30 01:04:08,544 INFO L87 Difference]: Start difference. First operand 128 states and 179 transitions. Second operand 14 states. [2020-11-30 01:04:21,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:04:21,965 INFO L93 Difference]: Finished difference Result 288 states and 398 transitions. [2020-11-30 01:04:22,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-30 01:04:22,350 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 21 [2020-11-30 01:04:22,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:04:22,352 INFO L225 Difference]: With dead ends: 288 [2020-11-30 01:04:22,352 INFO L226 Difference]: Without dead ends: 255 [2020-11-30 01:04:22,353 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-11-30 01:04:22,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-11-30 01:04:22,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 132. [2020-11-30 01:04:22,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-11-30 01:04:22,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 184 transitions. [2020-11-30 01:04:22,370 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 184 transitions. Word has length 21 [2020-11-30 01:04:22,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:04:22,371 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 184 transitions. [2020-11-30 01:04:22,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-30 01:04:22,371 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 184 transitions. [2020-11-30 01:04:22,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 01:04:22,373 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:04:22,373 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:04:22,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 01:04:22,595 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:04:22,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:04:22,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1210389367, now seen corresponding path program 1 times [2020-11-30 01:04:22,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:04:22,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [634414072] [2020-11-30 01:04:22,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-30 01:04:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:04:23,483 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:04:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:04:24,243 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:04:24,369 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-30 01:04:24,369 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:04:24,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-30 01:04:24,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:04:24 BoogieIcfgContainer [2020-11-30 01:04:24,662 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:04:24,663 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:04:24,663 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:04:24,664 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:04:24,670 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:57:56" (3/4) ... [2020-11-30 01:04:24,672 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 01:04:24,826 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6ded040a-2173-42af-8ba9-7995fafcee17/bin/uautomizer/witness.graphml [2020-11-30 01:04:24,827 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:04:24,828 INFO L168 Benchmark]: Toolchain (without parser) took 431364.58 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 33.4 MB in the beginning and 38.6 MB in the end (delta: -5.2 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:24,828 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 54.5 MB. Free memory is still 36.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:04:24,829 INFO L168 Benchmark]: CACSL2BoogieTranslator took 681.88 ms. Allocated memory is still 54.5 MB. Free memory was 33.2 MB in the beginning and 32.7 MB in the end (delta: 472.6 kB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:24,829 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.74 ms. Allocated memory is still 54.5 MB. Free memory was 32.6 MB in the beginning and 28.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:24,831 INFO L168 Benchmark]: Boogie Preprocessor took 150.97 ms. Allocated memory is still 54.5 MB. Free memory was 28.9 MB in the beginning and 25.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:24,832 INFO L168 Benchmark]: RCFGBuilder took 42513.79 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 25.0 MB in the beginning and 43.6 MB in the end (delta: -18.6 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:24,832 INFO L168 Benchmark]: TraceAbstraction took 387755.70 ms. Allocated memory is still 71.3 MB. Free memory was 43.2 MB in the beginning and 44.9 MB in the end (delta: -1.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:24,833 INFO L168 Benchmark]: Witness Printer took 163.65 ms. Allocated memory is still 71.3 MB. Free memory was 44.9 MB in the beginning and 38.6 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:04:24,836 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 54.5 MB. Free memory is still 36.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 681.88 ms. Allocated memory is still 54.5 MB. Free memory was 33.2 MB in the beginning and 32.7 MB in the end (delta: 472.6 kB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.74 ms. Allocated memory is still 54.5 MB. Free memory was 32.6 MB in the beginning and 28.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 150.97 ms. Allocated memory is still 54.5 MB. Free memory was 28.9 MB in the beginning and 25.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 42513.79 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 25.0 MB in the beginning and 43.6 MB in the end (delta: -18.6 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 387755.70 ms. Allocated memory is still 71.3 MB. Free memory was 43.2 MB in the beginning and 44.9 MB in the end (delta: -1.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. * Witness Printer took 163.65 ms. Allocated memory is still 71.3 MB. Free memory was 44.9 MB in the beginning and 38.6 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] 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, }; [L62-L64] 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; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, 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] [L255] double x = __VERIFIER_nondet_double(); [L256] double y = __VERIFIER_nondet_double(); [L247] return x != x; VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, 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] [L258] isnan_double(x) || isnan_double(y) VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, 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] [L258] COND TRUE isnan_double(x) || isnan_double(y) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, 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] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, 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] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, 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] [L163-L164] COND FALSE !(((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000)) VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, 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] [L166] COND FALSE !(((hx - 0x3ff00000) | lx) == 0) [L168] m = ((hy >> 31) & 1) | ((hx >> 30) & 2) VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, 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] [L170] COND TRUE (iy | ly) == 0 [L172] case 0: VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, 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] [L173] case 1: [L174] return y; VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, 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] [L260] double res = __ieee754_atan2(y, x); [L247] return x != x; VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, 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] [L263] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_0670.c", 3, "reach_error") VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={3:0}, 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, 120 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 387.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 360.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 669 SDtfs, 3601 SDslu, 3645 SDs, 0 SdLazy, 815 SolverSat, 49 SolverUnsat, 63 SolverUnknown, 0 SolverNotchecked, 321.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 149 GetRequests, 86 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 41.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 367 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 22.0s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 128 ConstructedInterpolants, 43 QuantifiedInterpolants, 16456 SizeOfPredicates, 45 NumberOfNonLiveVariables, 590 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...