./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0681b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc 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_0681b.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 32006fa7bcdab8b1b0ff5a3280bfd2629f2a7e36 .................................................................................................................................................................................................................................................................................................................................... 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_0681b.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 32006fa7bcdab8b1b0ff5a3280bfd2629f2a7e36 .......................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-10-24 23:10:19,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:10:19,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:10:19,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:10:19,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:10:19,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:10:19,672 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:10:19,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:10:19,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:10:19,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:10:19,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:10:19,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:10:19,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:10:19,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:10:19,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:10:19,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:10:19,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:10:19,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:10:19,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:10:19,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:10:19,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:10:19,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:10:19,735 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:10:19,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:10:19,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:10:19,749 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:10:19,749 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:10:19,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:10:19,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:10:19,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:10:19,755 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:10:19,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:10:19,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:10:19,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:10:19,761 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:10:19,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:10:19,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:10:19,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:10:19,764 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:10:19,767 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:10:19,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:10:19,770 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 23:10:19,832 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:10:19,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:10:19,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:10:19,839 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:10:19,839 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:10:19,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:10:19,840 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:10:19,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 23:10:19,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:10:19,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:10:19,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:10:19,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:10:19,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:10:19,844 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:10:19,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:10:19,845 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:10:19,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:10:19,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:10:19,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:10:19,846 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:10:19,847 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:10:19,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:10:19,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:10:19,848 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:10:19,848 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:10:19,848 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 23:10:19,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 23:10:19,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:10:19,849 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:10:19,850 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32006fa7bcdab8b1b0ff5a3280bfd2629f2a7e36 [2020-10-24 23:10:20,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:10:20,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:10:20,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:10:20,319 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:10:20,321 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:10:20,322 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0681b.c [2020-10-24 23:10:20,422 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69381bb96/f9cfd75c59fe4872b0dcf1f82f1addb2/FLAG83c922e86 [2020-10-24 23:10:21,052 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:10:21,053 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0681b.c [2020-10-24 23:10:21,064 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69381bb96/f9cfd75c59fe4872b0dcf1f82f1addb2/FLAG83c922e86 [2020-10-24 23:10:21,396 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69381bb96/f9cfd75c59fe4872b0dcf1f82f1addb2 [2020-10-24 23:10:21,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:10:21,410 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:10:21,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:10:21,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:10:21,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:10:21,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:10:21" (1/1) ... [2020-10-24 23:10:21,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d8a271e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:10:21, skipping insertion in model container [2020-10-24 23:10:21,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:10:21" (1/1) ... [2020-10-24 23:10:21,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:10:21,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:10:21,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:10:21,776 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:10:21,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:10:21,907 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:10:21,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:10:21 WrapperNode [2020-10-24 23:10:21,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:10:21,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:10:21,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:10:21,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:10:21,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:10:21" (1/1) ... [2020-10-24 23:10:21,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:10:21" (1/1) ... [2020-10-24 23:10:22,001 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:10:22,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:10:22,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:10:22,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:10:22,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:10:21" (1/1) ... [2020-10-24 23:10:22,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:10:21" (1/1) ... [2020-10-24 23:10:22,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:10:21" (1/1) ... [2020-10-24 23:10:22,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:10:21" (1/1) ... [2020-10-24 23:10:22,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:10:21" (1/1) ... [2020-10-24 23:10:22,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:10:21" (1/1) ... [2020-10-24 23:10:22,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:10:21" (1/1) ... [2020-10-24 23:10:22,088 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:10:22,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:10:22,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:10:22,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:10:22,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:10:21" (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 [2020-10-24 23:10:22,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 23:10:22,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:10:22,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 23:10:22,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 23:10:22,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 23:10:22,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:10:22,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:10:22,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 23:10:22,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-24 23:10:22,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:10:23,316 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:10:23,316 INFO L298 CfgBuilder]: Removed 50 assume(true) statements. [2020-10-24 23:10:23,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:10:23 BoogieIcfgContainer [2020-10-24 23:10:23,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:10:23,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:10:23,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:10:23,325 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:10:23,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:10:21" (1/3) ... [2020-10-24 23:10:23,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a403593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:10:23, skipping insertion in model container [2020-10-24 23:10:23,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:10:21" (2/3) ... [2020-10-24 23:10:23,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a403593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:10:23, skipping insertion in model container [2020-10-24 23:10:23,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:10:23" (3/3) ... [2020-10-24 23:10:23,329 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0681b.c [2020-10-24 23:10:23,342 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:10:23,348 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:10:23,361 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:10:23,389 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:10:23,390 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:10:23,390 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:10:23,390 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:10:23,390 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:10:23,391 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:10:23,391 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:10:23,391 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:10:23,410 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2020-10-24 23:10:23,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 23:10:23,418 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:10:23,419 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:10:23,419 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:10:23,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:10:23,426 INFO L82 PathProgramCache]: Analyzing trace with hash 531143789, now seen corresponding path program 1 times [2020-10-24 23:10:23,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:10:23,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034346609] [2020-10-24 23:10:23,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:10:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:10:23,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:10:23,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034346609] [2020-10-24 23:10:23,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:10:23,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 23:10:23,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227943221] [2020-10-24 23:10:23,623 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:10:23,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:10:23,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:10:23,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:10:23,643 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2020-10-24 23:10:23,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:10:23,691 INFO L93 Difference]: Finished difference Result 235 states and 395 transitions. [2020-10-24 23:10:23,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:10:23,693 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-10-24 23:10:23,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:10:23,706 INFO L225 Difference]: With dead ends: 235 [2020-10-24 23:10:23,707 INFO L226 Difference]: Without dead ends: 115 [2020-10-24 23:10:23,711 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 [2020-10-24 23:10:23,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-24 23:10:23,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-10-24 23:10:23,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-24 23:10:23,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 164 transitions. [2020-10-24 23:10:23,763 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 164 transitions. Word has length 11 [2020-10-24 23:10:23,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:10:23,763 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 164 transitions. [2020-10-24 23:10:23,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:10:23,764 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 164 transitions. [2020-10-24 23:10:23,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-24 23:10:23,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:10:23,766 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:10:23,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 23:10:23,767 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:10:23,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:10:23,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1379574948, now seen corresponding path program 1 times [2020-10-24 23:10:23,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:10:23,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312613007] [2020-10-24 23:10:23,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:10:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:10:23,884 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:10:23,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:10:23,980 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:10:24,031 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 23:10:24,031 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:10:24,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 23:10:24,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:10:24 BoogieIcfgContainer [2020-10-24 23:10:24,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:10:24,087 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:10:24,087 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:10:24,088 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:10:24,088 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:10:23" (3/4) ... [2020-10-24 23:10:24,093 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 23:10:24,093 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:10:24,096 INFO L168 Benchmark]: Toolchain (without parser) took 2689.92 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 33.1 MB in the beginning and 26.8 MB in the end (delta: 6.2 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:10:24,097 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 44.0 MB. Free memory was 21.8 MB in the beginning and 21.8 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:10:24,099 INFO L168 Benchmark]: CACSL2BoogieTranslator took 496.90 ms. Allocated memory is still 56.6 MB. Free memory was 32.4 MB in the beginning and 30.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2020-10-24 23:10:24,100 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.74 ms. Allocated memory is still 56.6 MB. Free memory was 30.9 MB in the beginning and 27.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:10:24,101 INFO L168 Benchmark]: Boogie Preprocessor took 91.09 ms. Allocated memory is still 56.6 MB. Free memory was 27.2 MB in the beginning and 36.7 MB in the end (delta: -9.6 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2020-10-24 23:10:24,102 INFO L168 Benchmark]: RCFGBuilder took 1221.75 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 36.5 MB in the beginning and 40.6 MB in the end (delta: -4.1 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. [2020-10-24 23:10:24,103 INFO L168 Benchmark]: TraceAbstraction took 765.39 ms. Allocated memory is still 69.2 MB. Free memory was 40.2 MB in the beginning and 27.3 MB in the end (delta: 12.9 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:10:24,104 INFO L168 Benchmark]: Witness Printer took 6.13 ms. Allocated memory is still 69.2 MB. Free memory was 27.3 MB in the beginning and 26.8 MB in the end (delta: 431.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:10:24,110 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 44.0 MB. Free memory was 21.8 MB in the beginning and 21.8 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 496.90 ms. Allocated memory is still 56.6 MB. Free memory was 32.4 MB in the beginning and 30.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.74 ms. Allocated memory is still 56.6 MB. Free memory was 30.9 MB in the beginning and 27.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 91.09 ms. Allocated memory is still 56.6 MB. Free memory was 27.2 MB in the beginning and 36.7 MB in the end (delta: -9.6 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1221.75 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 36.5 MB in the beginning and 40.6 MB in the end (delta: -4.1 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 765.39 ms. Allocated memory is still 69.2 MB. Free memory was 40.2 MB in the beginning and 27.3 MB in the end (delta: 12.9 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. * Witness Printer took 6.13 ms. Allocated memory is still 69.2 MB. Free memory was 27.3 MB in the beginning and 26.8 MB in the end (delta: 431.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 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 266, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 269. 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] [L265] double x = 0.0; [L266] double y = -0.0; [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] [L267] double res = __ieee754_atan2(y, x); [L269] EXPR res == -0.0 && __signbit_double(res) == 1 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] [L269] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L3] __assert_fail("0", "double_req_bl_0681b.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, 119 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: 167 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=119occurred 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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 [2020-10-24 23:10:26,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:10:26,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:10:26,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:10:26,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:10:26,889 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:10:26,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:10:26,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:10:26,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:10:26,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:10:26,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:10:26,922 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:10:26,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:10:26,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:10:26,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:10:26,929 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:10:26,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:10:26,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:10:26,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:10:26,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:10:26,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:10:26,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:10:26,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:10:26,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:10:26,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:10:26,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:10:26,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:10:26,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:10:26,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:10:26,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:10:26,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:10:26,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:10:26,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:10:26,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:10:26,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:10:26,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:10:26,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:10:26,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:10:26,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:10:26,992 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:10:26,993 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:10:26,994 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 23:10:27,044 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:10:27,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:10:27,046 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:10:27,047 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:10:27,047 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:10:27,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:10:27,048 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:10:27,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:10:27,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:10:27,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:10:27,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:10:27,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:10:27,049 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 23:10:27,050 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 23:10:27,050 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:10:27,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:10:27,051 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:10:27,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:10:27,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:10:27,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:10:27,052 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:10:27,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:10:27,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:10:27,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:10:27,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:10:27,053 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:10:27,054 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 23:10:27,054 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 23:10:27,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:10:27,054 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:10:27,055 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 23:10:27,055 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32006fa7bcdab8b1b0ff5a3280bfd2629f2a7e36 [2020-10-24 23:10:27,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:10:27,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:10:27,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:10:27,553 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:10:27,554 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:10:27,555 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0681b.c [2020-10-24 23:10:27,632 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2c4d1cb7/4f1081a67c294e178eddccbf62d1a247/FLAGd4fc63321 [2020-10-24 23:10:28,396 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:10:28,398 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0681b.c [2020-10-24 23:10:28,418 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2c4d1cb7/4f1081a67c294e178eddccbf62d1a247/FLAGd4fc63321 [2020-10-24 23:10:28,690 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2c4d1cb7/4f1081a67c294e178eddccbf62d1a247 [2020-10-24 23:10:28,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:10:28,702 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:10:28,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:10:28,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:10:28,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:10:28,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:10:28" (1/1) ... [2020-10-24 23:10:28,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44976a78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:10:28, skipping insertion in model container [2020-10-24 23:10:28,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:10:28" (1/1) ... [2020-10-24 23:10:28,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:10:28,824 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:10:29,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:10:29,101 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:10:29,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:10:29,269 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:10:29,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:10:29 WrapperNode [2020-10-24 23:10:29,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:10:29,271 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:10:29,272 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:10:29,272 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:10:29,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:10:29" (1/1) ... [2020-10-24 23:10:29,302 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:10:29" (1/1) ... [2020-10-24 23:10:29,380 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:10:29,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:10:29,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:10:29,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:10:29,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:10:29" (1/1) ... [2020-10-24 23:10:29,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:10:29" (1/1) ... [2020-10-24 23:10:29,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:10:29" (1/1) ... [2020-10-24 23:10:29,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:10:29" (1/1) ... [2020-10-24 23:10:29,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:10:29" (1/1) ... [2020-10-24 23:10:29,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:10:29" (1/1) ... [2020-10-24 23:10:29,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:10:29" (1/1) ... [2020-10-24 23:10:29,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:10:29,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:10:29,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:10:29,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:10:29,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:10:29" (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 [2020-10-24 23:10:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-10-24 23:10:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-10-24 23:10:29,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 23:10:29,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:10:29,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-10-24 23:10:29,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-24 23:10:29,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:10:29,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:10:29,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-24 23:10:29,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:11:11,009 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:11:11,010 INFO L298 CfgBuilder]: Removed 50 assume(true) statements. [2020-10-24 23:11:11,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:11:11 BoogieIcfgContainer [2020-10-24 23:11:11,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:11:11,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:11:11,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:11:11,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:11:11,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:10:28" (1/3) ... [2020-10-24 23:11:11,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49cb4d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:11:11, skipping insertion in model container [2020-10-24 23:11:11,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:10:29" (2/3) ... [2020-10-24 23:11:11,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49cb4d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:11:11, skipping insertion in model container [2020-10-24 23:11:11,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:11:11" (3/3) ... [2020-10-24 23:11:11,025 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0681b.c [2020-10-24 23:11:11,039 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:11:11,046 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:11:11,061 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:11:11,108 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:11:11,108 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:11:11,108 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:11:11,109 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:11:11,109 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:11:11,109 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:11:11,110 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:11:11,110 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:11:11,135 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2020-10-24 23:11:11,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 23:11:11,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:11:11,146 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:11:11,146 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:11:11,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:11:11,155 INFO L82 PathProgramCache]: Analyzing trace with hash 531143789, now seen corresponding path program 1 times [2020-10-24 23:11:11,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:11:11,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110043051] [2020-10-24 23:11:11,177 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 [2020-10-24 23:11:11,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:11:11,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 23:11:11,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:11:11,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:11:11,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:11:11,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:11:11,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110043051] [2020-10-24 23:11:11,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:11:11,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 23:11:11,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935377793] [2020-10-24 23:11:11,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:11:11,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:11:11,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:11:11,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:11:11,883 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2020-10-24 23:11:11,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:11:11,954 INFO L93 Difference]: Finished difference Result 235 states and 395 transitions. [2020-10-24 23:11:11,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:11:11,956 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-10-24 23:11:11,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:11:11,978 INFO L225 Difference]: With dead ends: 235 [2020-10-24 23:11:11,979 INFO L226 Difference]: Without dead ends: 115 [2020-10-24 23:11:11,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:11:12,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-24 23:11:12,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-10-24 23:11:12,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-24 23:11:12,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 164 transitions. [2020-10-24 23:11:12,066 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 164 transitions. Word has length 11 [2020-10-24 23:11:12,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:11:12,067 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 164 transitions. [2020-10-24 23:11:12,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:11:12,067 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 164 transitions. [2020-10-24 23:11:12,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-24 23:11:12,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:11:12,071 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:11:12,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 23:11:12,287 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:11:12,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:11:12,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1379574948, now seen corresponding path program 1 times [2020-10-24 23:11:12,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:11:12,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167607688] [2020-10-24 23:11:12,291 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 [2020-10-24 23:11:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:11:12,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-24 23:11:12,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:11:13,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:11:13,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:11:13,208 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 23:11:13,517 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 23:11:13,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:11:13,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167607688] [2020-10-24 23:11:13,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:11:13,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2020-10-24 23:11:13,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200780031] [2020-10-24 23:11:13,739 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-24 23:11:13,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:11:13,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-24 23:11:13,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-10-24 23:11:13,741 INFO L87 Difference]: Start difference. First operand 115 states and 164 transitions. Second operand 12 states. [2020-10-24 23:11:16,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:11:16,170 INFO L93 Difference]: Finished difference Result 171 states and 238 transitions. [2020-10-24 23:11:16,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-24 23:11:16,172 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 13 [2020-10-24 23:11:16,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:11:16,173 INFO L225 Difference]: With dead ends: 171 [2020-10-24 23:11:16,173 INFO L226 Difference]: Without dead ends: 76 [2020-10-24 23:11:16,175 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-10-24 23:11:16,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-24 23:11:16,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-10-24 23:11:16,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-24 23:11:16,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 98 transitions. [2020-10-24 23:11:16,190 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 98 transitions. Word has length 13 [2020-10-24 23:11:16,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:11:16,190 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 98 transitions. [2020-10-24 23:11:16,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-24 23:11:16,190 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 98 transitions. [2020-10-24 23:11:16,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-24 23:11:16,192 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:11:16,192 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:11:16,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 23:11:16,401 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:11:16,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:11:16,403 INFO L82 PathProgramCache]: Analyzing trace with hash -697961435, now seen corresponding path program 1 times [2020-10-24 23:11:16,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:11:16,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [990533337] [2020-10-24 23:11:16,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-24 23:11:17,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:11:17,335 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:11:18,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:11:18,180 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:11:18,320 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-24 23:11:18,321 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:11:18,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 23:11:18,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:11:18 BoogieIcfgContainer [2020-10-24 23:11:18,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:11:18,609 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:11:18,609 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:11:18,612 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:11:18,613 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:11:11" (3/4) ... [2020-10-24 23:11:18,617 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-24 23:11:18,758 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 23:11:18,759 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:11:18,762 INFO L168 Benchmark]: Toolchain (without parser) took 50064.58 ms. Allocated memory was 39.8 MB in the beginning and 58.7 MB in the end (delta: 18.9 MB). Free memory was 17.6 MB in the beginning and 33.9 MB in the end (delta: -16.3 MB). Peak memory consumption was 25.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:11:18,764 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 39.8 MB. Free memory was 20.4 MB in the beginning and 20.3 MB in the end (delta: 42.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:11:18,765 INFO L168 Benchmark]: CACSL2BoogieTranslator took 543.96 ms. Allocated memory is still 48.2 MB. Free memory was 34.6 MB in the beginning and 29.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2020-10-24 23:11:18,767 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.27 ms. Allocated memory is still 48.2 MB. Free memory was 29.6 MB in the beginning and 26.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:11:18,769 INFO L168 Benchmark]: Boogie Preprocessor took 88.33 ms. Allocated memory is still 48.2 MB. Free memory was 26.0 MB in the beginning and 22.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:11:18,772 INFO L168 Benchmark]: RCFGBuilder took 41543.76 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 21.9 MB in the beginning and 31.9 MB in the end (delta: -9.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. [2020-10-24 23:11:18,773 INFO L168 Benchmark]: TraceAbstraction took 7591.72 ms. Allocated memory is still 58.7 MB. Free memory was 31.5 MB in the beginning and 15.5 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2020-10-24 23:11:18,774 INFO L168 Benchmark]: Witness Printer took 149.99 ms. Allocated memory is still 58.7 MB. Free memory was 15.5 MB in the beginning and 33.9 MB in the end (delta: -18.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:11:18,781 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 39.8 MB. Free memory was 20.4 MB in the beginning and 20.3 MB in the end (delta: 42.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 543.96 ms. Allocated memory is still 48.2 MB. Free memory was 34.6 MB in the beginning and 29.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 109.27 ms. Allocated memory is still 48.2 MB. Free memory was 29.6 MB in the beginning and 26.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 88.33 ms. Allocated memory is still 48.2 MB. Free memory was 26.0 MB in the beginning and 22.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 41543.76 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 21.9 MB in the beginning and 31.9 MB in the end (delta: -9.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7591.72 ms. Allocated memory is still 58.7 MB. Free memory was 31.5 MB in the beginning and 15.5 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. * Witness Printer took 149.99 ms. Allocated memory is still 58.7 MB. Free memory was 15.5 MB in the beginning and 33.9 MB in the end (delta: -18.4 MB). Peak memory consumption was 2.1 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] [L265] double x = 0.0; [L266] double y = -0.0; [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 FALSE !((iy | ly) == 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] [L182] COND TRUE (ix | lx) == 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] [L183] EXPR (hy < 0) ? -pi_o_2 - tiny_atan2 : pi_o_2 + tiny_atan2 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] [L183] return (hy < 0) ? -pi_o_2 - tiny_atan2 : pi_o_2 + tiny_atan2; [L267] double res = __ieee754_atan2(y, x); [L269] EXPR res == -0.0 && __signbit_double(res) == 1 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] [L269] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L3] __assert_fail("0", "double_req_bl_0681b.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, 119 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 250 SDtfs, 648 SDslu, 14 SDs, 0 SdLazy, 30 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=119occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 44 ConstructedInterpolants, 13 QuantifiedInterpolants, 5444 SizeOfPredicates, 16 NumberOfNonLiveVariables, 258 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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...