./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0960b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 096883e9 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0960b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 411418f84906bedc11fcfc3b7bde3a728b9fa839 ............................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0960b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 411418f84906bedc11fcfc3b7bde3a728b9fa839 ............................................................................................................................................................................................................................................................................................................................................ 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 0.2.0-096883e [2020-12-01 23:19:24,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 23:19:24,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 23:19:24,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 23:19:24,462 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 23:19:24,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 23:19:24,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 23:19:24,468 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 23:19:24,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 23:19:24,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 23:19:24,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 23:19:24,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 23:19:24,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 23:19:24,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 23:19:24,479 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 23:19:24,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 23:19:24,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 23:19:24,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 23:19:24,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 23:19:24,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 23:19:24,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 23:19:24,494 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 23:19:24,495 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 23:19:24,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 23:19:24,500 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 23:19:24,500 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 23:19:24,501 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 23:19:24,502 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 23:19:24,503 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 23:19:24,504 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 23:19:24,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 23:19:24,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 23:19:24,507 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 23:19:24,508 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 23:19:24,509 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 23:19:24,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 23:19:24,522 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 23:19:24,523 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 23:19:24,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 23:19:24,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 23:19:24,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 23:19:24,530 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 23:19:24,589 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 23:19:24,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 23:19:24,593 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 23:19:24,593 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 23:19:24,594 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 23:19:24,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 23:19:24,595 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 23:19:24,595 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 23:19:24,595 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 23:19:24,596 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 23:19:24,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 23:19:24,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 23:19:24,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 23:19:24,598 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 23:19:24,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 23:19:24,599 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 23:19:24,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 23:19:24,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 23:19:24,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 23:19:24,600 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 23:19:24,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 23:19:24,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:19:24,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 23:19:24,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 23:19:24,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 23:19:24,602 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 23:19:24,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 23:19:24,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 23:19:24,603 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 23:19:24,603 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 411418f84906bedc11fcfc3b7bde3a728b9fa839 [2020-12-01 23:19:25,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 23:19:25,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 23:19:25,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 23:19:25,072 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 23:19:25,074 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 23:19:25,075 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0960b.c [2020-12-01 23:19:25,171 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4657d4f9/2e8e24db59864211801cc4099e6793bf/FLAG9c6e40d5d [2020-12-01 23:19:25,785 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 23:19:25,786 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0960b.c [2020-12-01 23:19:25,794 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4657d4f9/2e8e24db59864211801cc4099e6793bf/FLAG9c6e40d5d [2020-12-01 23:19:26,132 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4657d4f9/2e8e24db59864211801cc4099e6793bf [2020-12-01 23:19:26,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 23:19:26,138 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 23:19:26,144 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 23:19:26,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 23:19:26,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 23:19:26,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:19:26" (1/1) ... [2020-12-01 23:19:26,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fb94d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:26, skipping insertion in model container [2020-12-01 23:19:26,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:19:26" (1/1) ... [2020-12-01 23:19:26,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 23:19:26,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 23:19:26,419 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0960b.c[4845,4858] [2020-12-01 23:19:26,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:19:26,434 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 23:19:26,491 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0960b.c[4845,4858] [2020-12-01 23:19:26,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:19:26,528 INFO L208 MainTranslator]: Completed translation [2020-12-01 23:19:26,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:26 WrapperNode [2020-12-01 23:19:26,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 23:19:26,533 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 23:19:26,534 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 23:19:26,534 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 23:19:26,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:26" (1/1) ... [2020-12-01 23:19:26,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:26" (1/1) ... [2020-12-01 23:19:26,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 23:19:26,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 23:19:26,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 23:19:26,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 23:19:26,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:26" (1/1) ... [2020-12-01 23:19:26,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:26" (1/1) ... [2020-12-01 23:19:26,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:26" (1/1) ... [2020-12-01 23:19:26,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:26" (1/1) ... [2020-12-01 23:19:26,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:26" (1/1) ... [2020-12-01 23:19:26,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:26" (1/1) ... [2020-12-01 23:19:26,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:26" (1/1) ... [2020-12-01 23:19:26,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 23:19:26,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 23:19:26,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 23:19:26,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 23:19:26,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:19:26,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 23:19:26,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 23:19:26,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-01 23:19:26,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 23:19:26,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-01 23:19:26,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 23:19:26,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 23:19:26,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 23:19:26,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 23:19:27,672 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 23:19:27,672 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-12-01 23:19:27,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:19:27 BoogieIcfgContainer [2020-12-01 23:19:27,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 23:19:27,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 23:19:27,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 23:19:27,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 23:19:27,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:19:26" (1/3) ... [2020-12-01 23:19:27,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c5e8ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:19:27, skipping insertion in model container [2020-12-01 23:19:27,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:26" (2/3) ... [2020-12-01 23:19:27,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c5e8ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:19:27, skipping insertion in model container [2020-12-01 23:19:27,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:19:27" (3/3) ... [2020-12-01 23:19:27,685 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0960b.c [2020-12-01 23:19:27,698 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 23:19:27,703 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 23:19:27,714 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 23:19:27,742 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 23:19:27,743 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 23:19:27,743 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 23:19:27,743 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 23:19:27,743 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 23:19:27,743 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 23:19:27,744 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 23:19:27,744 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 23:19:27,759 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-12-01 23:19:27,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 23:19:27,765 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:19:27,766 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:19:27,767 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:19:27,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:19:27,773 INFO L82 PathProgramCache]: Analyzing trace with hash -306140874, now seen corresponding path program 1 times [2020-12-01 23:19:27,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 23:19:27,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546745648] [2020-12-01 23:19:27,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 23:19:27,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:19:27,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:19:27,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546745648] [2020-12-01 23:19:27,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:19:27,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 23:19:27,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230667520] [2020-12-01 23:19:27,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 23:19:27,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 23:19:27,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 23:19:28,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:19:28,002 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2020-12-01 23:19:28,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:19:28,028 INFO L93 Difference]: Finished difference Result 88 states and 146 transitions. [2020-12-01 23:19:28,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 23:19:28,030 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-12-01 23:19:28,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:19:28,042 INFO L225 Difference]: With dead ends: 88 [2020-12-01 23:19:28,043 INFO L226 Difference]: Without dead ends: 42 [2020-12-01 23:19:28,046 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:19:28,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-12-01 23:19:28,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-12-01 23:19:28,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-12-01 23:19:28,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2020-12-01 23:19:28,089 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 12 [2020-12-01 23:19:28,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:19:28,090 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2020-12-01 23:19:28,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 23:19:28,090 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2020-12-01 23:19:28,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 23:19:28,091 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:19:28,092 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:19:28,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 23:19:28,092 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:19:28,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:19:28,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1933005595, now seen corresponding path program 1 times [2020-12-01 23:19:28,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 23:19:28,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047610238] [2020-12-01 23:19:28,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 23:19:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:19:28,260 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:19:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:19:28,320 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:19:28,355 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 23:19:28,356 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 23:19:28,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 23:19:28,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:19:28 BoogieIcfgContainer [2020-12-01 23:19:28,411 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 23:19:28,411 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 23:19:28,412 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 23:19:28,412 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 23:19:28,413 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:19:27" (3/4) ... [2020-12-01 23:19:28,417 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 23:19:28,417 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 23:19:28,419 INFO L168 Benchmark]: Toolchain (without parser) took 2281.00 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 23.6 MB in the beginning and 36.4 MB in the end (delta: -12.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:19:28,420 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 37.7 MB. Free memory was 19.9 MB in the beginning and 19.9 MB in the end (delta: 42.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:19:28,421 INFO L168 Benchmark]: CACSL2BoogieTranslator took 387.49 ms. Allocated memory is still 46.1 MB. Free memory was 23.3 MB in the beginning and 21.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-12-01 23:19:28,422 INFO L168 Benchmark]: Boogie Procedure Inliner took 131.48 ms. Allocated memory is still 46.1 MB. Free memory was 21.1 MB in the beginning and 29.8 MB in the end (delta: -8.7 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. [2020-12-01 23:19:28,423 INFO L168 Benchmark]: Boogie Preprocessor took 102.21 ms. Allocated memory is still 46.1 MB. Free memory was 29.6 MB in the beginning and 27.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:19:28,424 INFO L168 Benchmark]: RCFGBuilder took 904.13 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 27.5 MB in the beginning and 30.8 MB in the end (delta: -3.2 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. [2020-12-01 23:19:28,425 INFO L168 Benchmark]: TraceAbstraction took 734.13 ms. Allocated memory is still 56.6 MB. Free memory was 30.3 MB in the beginning and 36.7 MB in the end (delta: -6.4 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2020-12-01 23:19:28,428 INFO L168 Benchmark]: Witness Printer took 5.55 ms. Allocated memory is still 56.6 MB. Free memory was 36.7 MB in the beginning and 36.4 MB in the end (delta: 338.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:19:28,435 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 37.7 MB. Free memory was 19.9 MB in the beginning and 19.9 MB in the end (delta: 42.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 387.49 ms. Allocated memory is still 46.1 MB. Free memory was 23.3 MB in the beginning and 21.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 131.48 ms. Allocated memory is still 46.1 MB. Free memory was 21.1 MB in the beginning and 29.8 MB in the end (delta: -8.7 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 102.21 ms. Allocated memory is still 46.1 MB. Free memory was 29.6 MB in the beginning and 27.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 904.13 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 27.5 MB in the beginning and 30.8 MB in the end (delta: -3.2 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 734.13 ms. Allocated memory is still 56.6 MB. Free memory was 30.3 MB in the beginning and 36.7 MB in the end (delta: -6.4 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. * Witness Printer took 5.55 ms. Allocated memory is still 56.6 MB. Free memory was 36.7 MB in the beginning and 36.4 MB in the end (delta: 338.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 188]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 29, overapproximation of someUnaryDOUBLEoperation at line 183, overapproximation of someBinaryArithmeticDOUBLEoperation at line 150, overapproximation of bitwiseAnd at line 28. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; [L128-L131] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L133] static const double zero_log10 = 0.0; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L183] double x = -0.0; [L136] double y, z; [L137] __int32_t i, k, hx; [L138] __uint32_t lx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L141] ieee_double_shape_type ew_u; [L142] ew_u.value = (x) [L143] EXPR ew_u.parts.msw [L143] (hx) = ew_u.parts.msw [L144] EXPR ew_u.parts.lsw [L144] (lx) = ew_u.parts.lsw [L147] k = 0 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L148] COND TRUE hx < 0x00100000 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L149] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L150] return -two54_log10 / zero_log10; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L184] double res = __ieee754_log10(x); [L21] __int32_t hx, lx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (hx) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lx) = ew_u.parts.lsw [L28] hx &= 0x7fffffff [L29] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L30] hx = 0x7ff00000 - hx [L31] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L187] COND TRUE !isinf_double(res) [L188] reach_error() VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 59 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=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 121 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 0.2.0-096883e [2020-12-01 23:19:30,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 23:19:30,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 23:19:31,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 23:19:31,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 23:19:31,020 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 23:19:31,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 23:19:31,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 23:19:31,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 23:19:31,039 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 23:19:31,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 23:19:31,046 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 23:19:31,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 23:19:31,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 23:19:31,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 23:19:31,053 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 23:19:31,054 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 23:19:31,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 23:19:31,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 23:19:31,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 23:19:31,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 23:19:31,074 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 23:19:31,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 23:19:31,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 23:19:31,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 23:19:31,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 23:19:31,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 23:19:31,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 23:19:31,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 23:19:31,090 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 23:19:31,091 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 23:19:31,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 23:19:31,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 23:19:31,096 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 23:19:31,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 23:19:31,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 23:19:31,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 23:19:31,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 23:19:31,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 23:19:31,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 23:19:31,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 23:19:31,112 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 23:19:31,168 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 23:19:31,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 23:19:31,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 23:19:31,172 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 23:19:31,172 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 23:19:31,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 23:19:31,173 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 23:19:31,173 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 23:19:31,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 23:19:31,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 23:19:31,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 23:19:31,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 23:19:31,175 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 23:19:31,175 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 23:19:31,176 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 23:19:31,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 23:19:31,176 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 23:19:31,176 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 23:19:31,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 23:19:31,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 23:19:31,177 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 23:19:31,178 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 23:19:31,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:19:31,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 23:19:31,179 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 23:19:31,179 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 23:19:31,179 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 23:19:31,179 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 23:19:31,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 23:19:31,180 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 23:19:31,180 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 23:19:31,180 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 411418f84906bedc11fcfc3b7bde3a728b9fa839 [2020-12-01 23:19:31,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 23:19:31,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 23:19:31,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 23:19:31,659 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 23:19:31,660 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 23:19:31,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0960b.c [2020-12-01 23:19:31,747 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ba34b280/1b737ca5faf7447c8772c7993ce5c3e3/FLAGcd8346e5b [2020-12-01 23:19:32,342 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 23:19:32,348 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0960b.c [2020-12-01 23:19:32,361 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ba34b280/1b737ca5faf7447c8772c7993ce5c3e3/FLAGcd8346e5b [2020-12-01 23:19:32,686 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ba34b280/1b737ca5faf7447c8772c7993ce5c3e3 [2020-12-01 23:19:32,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 23:19:32,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 23:19:32,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 23:19:32,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 23:19:32,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 23:19:32,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:19:32" (1/1) ... [2020-12-01 23:19:32,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f5debfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:32, skipping insertion in model container [2020-12-01 23:19:32,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:19:32" (1/1) ... [2020-12-01 23:19:32,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 23:19:32,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 23:19:33,031 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0960b.c[4845,4858] [2020-12-01 23:19:33,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:19:33,050 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 23:19:33,120 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0960b.c[4845,4858] [2020-12-01 23:19:33,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:19:33,146 INFO L208 MainTranslator]: Completed translation [2020-12-01 23:19:33,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:33 WrapperNode [2020-12-01 23:19:33,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 23:19:33,148 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 23:19:33,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 23:19:33,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 23:19:33,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:33" (1/1) ... [2020-12-01 23:19:33,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:33" (1/1) ... [2020-12-01 23:19:33,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 23:19:33,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 23:19:33,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 23:19:33,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 23:19:33,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:33" (1/1) ... [2020-12-01 23:19:33,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:33" (1/1) ... [2020-12-01 23:19:33,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:33" (1/1) ... [2020-12-01 23:19:33,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:33" (1/1) ... [2020-12-01 23:19:33,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:33" (1/1) ... [2020-12-01 23:19:33,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:33" (1/1) ... [2020-12-01 23:19:33,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:33" (1/1) ... [2020-12-01 23:19:33,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 23:19:33,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 23:19:33,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 23:19:33,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 23:19:33,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:19:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-01 23:19:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-01 23:19:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 23:19:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 23:19:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-01 23:19:33,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 23:19:33,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 23:19:33,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-01 23:19:33,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 23:20:10,268 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 23:20:10,268 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-12-01 23:20:10,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:20:10 BoogieIcfgContainer [2020-12-01 23:20:10,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 23:20:10,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 23:20:10,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 23:20:10,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 23:20:10,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:19:32" (1/3) ... [2020-12-01 23:20:10,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4abaed0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:20:10, skipping insertion in model container [2020-12-01 23:20:10,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:33" (2/3) ... [2020-12-01 23:20:10,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4abaed0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:20:10, skipping insertion in model container [2020-12-01 23:20:10,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:20:10" (3/3) ... [2020-12-01 23:20:10,289 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0960b.c [2020-12-01 23:20:10,305 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 23:20:10,309 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 23:20:10,322 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 23:20:10,349 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 23:20:10,349 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 23:20:10,349 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 23:20:10,350 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 23:20:10,350 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 23:20:10,350 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 23:20:10,350 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 23:20:10,350 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 23:20:10,365 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-12-01 23:20:10,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 23:20:10,371 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:20:10,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:20:10,373 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:20:10,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:20:10,379 INFO L82 PathProgramCache]: Analyzing trace with hash -306140874, now seen corresponding path program 1 times [2020-12-01 23:20:10,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:20:10,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2134574415] [2020-12-01 23:20:10,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-01 23:20:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:20:11,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-01 23:20:11,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 23:20:11,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:20:11,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 23:20:11,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:20:11,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2134574415] [2020-12-01 23:20:11,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:20:11,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-01 23:20:11,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096742478] [2020-12-01 23:20:11,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 23:20:11,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 23:20:11,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 23:20:11,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:20:11,441 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2020-12-01 23:20:11,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:20:11,465 INFO L93 Difference]: Finished difference Result 88 states and 146 transitions. [2020-12-01 23:20:11,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 23:20:11,467 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-12-01 23:20:11,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:20:11,483 INFO L225 Difference]: With dead ends: 88 [2020-12-01 23:20:11,483 INFO L226 Difference]: Without dead ends: 42 [2020-12-01 23:20:11,486 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:20:11,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-12-01 23:20:11,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-12-01 23:20:11,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-12-01 23:20:11,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2020-12-01 23:20:11,524 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 12 [2020-12-01 23:20:11,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:20:11,524 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2020-12-01 23:20:11,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 23:20:11,525 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2020-12-01 23:20:11,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 23:20:11,525 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:20:11,526 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:20:11,731 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 23:20:11,732 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:20:11,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:20:11,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1933005595, now seen corresponding path program 1 times [2020-12-01 23:20:11,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:20:11,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [116499140] [2020-12-01 23:20:11,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-01 23:20:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:20:12,848 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:20:13,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:20:13,924 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:20:14,057 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-12-01 23:20:14,058 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 23:20:14,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 23:20:14,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:20:14 BoogieIcfgContainer [2020-12-01 23:20:14,331 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 23:20:14,332 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 23:20:14,332 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 23:20:14,332 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 23:20:14,333 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:20:10" (3/4) ... [2020-12-01 23:20:14,335 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 23:20:14,421 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-01 23:20:14,421 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 23:20:14,424 INFO L168 Benchmark]: Toolchain (without parser) took 41731.94 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 19.4 MB in the beginning and 26.0 MB in the end (delta: -6.6 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:14,425 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 41.9 MB. Free memory was 22.4 MB in the beginning and 22.4 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:20:14,426 INFO L168 Benchmark]: CACSL2BoogieTranslator took 451.72 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 19.1 MB in the beginning and 33.3 MB in the end (delta: -14.1 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:14,426 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.14 ms. Allocated memory is still 50.3 MB. Free memory was 33.3 MB in the beginning and 30.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:14,427 INFO L168 Benchmark]: Boogie Preprocessor took 103.02 ms. Allocated memory is still 50.3 MB. Free memory was 30.8 MB in the beginning and 28.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:14,428 INFO L168 Benchmark]: RCFGBuilder took 36914.39 ms. Allocated memory is still 50.3 MB. Free memory was 28.4 MB in the beginning and 30.0 MB in the end (delta: -1.7 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:14,428 INFO L168 Benchmark]: TraceAbstraction took 4056.07 ms. Allocated memory is still 50.3 MB. Free memory was 29.6 MB in the beginning and 30.2 MB in the end (delta: -594.8 kB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:14,429 INFO L168 Benchmark]: Witness Printer took 89.73 ms. Allocated memory is still 50.3 MB. Free memory was 30.2 MB in the beginning and 26.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:14,433 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 41.9 MB. Free memory was 22.4 MB in the beginning and 22.4 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 451.72 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 19.1 MB in the beginning and 33.3 MB in the end (delta: -14.1 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 103.14 ms. Allocated memory is still 50.3 MB. Free memory was 33.3 MB in the beginning and 30.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 103.02 ms. Allocated memory is still 50.3 MB. Free memory was 30.8 MB in the beginning and 28.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 36914.39 ms. Allocated memory is still 50.3 MB. Free memory was 28.4 MB in the beginning and 30.0 MB in the end (delta: -1.7 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4056.07 ms. Allocated memory is still 50.3 MB. Free memory was 29.6 MB in the beginning and 30.2 MB in the end (delta: -594.8 kB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. * Witness Printer took 89.73 ms. Allocated memory is still 50.3 MB. Free memory was 30.2 MB in the beginning and 26.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 188]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; [L128-L131] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L133] static const double zero_log10 = 0.0; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L183] double x = -0.0; [L136] double y, z; [L137] __int32_t i, k, hx; [L138] __uint32_t lx; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L141] ieee_double_shape_type ew_u; [L142] ew_u.value = (x) [L143] EXPR ew_u.parts.msw [L143] (hx) = ew_u.parts.msw [L144] EXPR ew_u.parts.lsw [L144] (lx) = ew_u.parts.lsw [L147] k = 0 VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L148] COND TRUE hx < 0x00100000 VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L149] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L150] return -two54_log10 / zero_log10; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L184] double res = __ieee754_log10(x); [L21] __int32_t hx, lx; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (hx) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lx) = ew_u.parts.lsw [L28] hx &= 0x7fffffff [L29] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L30] hx = 0x7ff00000 - hx [L31] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L187] COND TRUE !isinf_double(res) [L188] reach_error() VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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, 1.8s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 242 SizeOfPredicates, 0 NumberOfNonLiveVariables, 55 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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...