./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0681a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 096883e9 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0681a.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 50b586478a7305427fbe78a3e49b383cfc2fc5af ...................................................................................................................................................................................................................................................................................................................................... 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_0681a.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 50b586478a7305427fbe78a3e49b383cfc2fc5af ......................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-096883e [2020-12-01 23:11:25,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 23:11:25,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 23:11:25,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 23:11:25,309 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 23:11:25,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 23:11:25,318 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 23:11:25,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 23:11:25,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 23:11:25,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 23:11:25,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 23:11:25,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 23:11:25,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 23:11:25,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 23:11:25,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 23:11:25,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 23:11:25,354 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 23:11:25,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 23:11:25,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 23:11:25,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 23:11:25,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 23:11:25,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 23:11:25,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 23:11:25,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 23:11:25,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 23:11:25,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 23:11:25,388 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 23:11:25,390 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 23:11:25,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 23:11:25,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 23:11:25,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 23:11:25,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 23:11:25,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 23:11:25,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 23:11:25,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 23:11:25,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 23:11:25,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 23:11:25,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 23:11:25,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 23:11:25,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 23:11:25,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 23:11:25,408 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 23:11:25,461 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 23:11:25,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 23:11:25,465 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 23:11:25,466 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 23:11:25,466 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 23:11:25,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 23:11:25,467 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 23:11:25,467 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 23:11:25,468 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 23:11:25,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 23:11:25,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 23:11:25,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 23:11:25,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 23:11:25,470 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 23:11:25,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 23:11:25,471 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 23:11:25,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 23:11:25,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 23:11:25,472 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 23:11:25,472 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 23:11:25,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 23:11:25,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:11:25,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 23:11:25,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 23:11:25,474 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 23:11:25,474 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 23:11:25,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 23:11:25,474 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 23:11:25,475 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 23:11:25,475 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50b586478a7305427fbe78a3e49b383cfc2fc5af [2020-12-01 23:11:25,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 23:11:25,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 23:11:25,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 23:11:25,954 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 23:11:25,955 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 23:11:25,956 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0681a.c [2020-12-01 23:11:26,049 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29c4f6254/37539e5d2d1846e58f9a3908a26d53c1/FLAGc521a043c [2020-12-01 23:11:26,811 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 23:11:26,812 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0681a.c [2020-12-01 23:11:26,824 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29c4f6254/37539e5d2d1846e58f9a3908a26d53c1/FLAGc521a043c [2020-12-01 23:11:27,119 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29c4f6254/37539e5d2d1846e58f9a3908a26d53c1 [2020-12-01 23:11:27,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 23:11:27,128 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 23:11:27,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 23:11:27,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 23:11:27,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 23:11:27,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:11:27" (1/1) ... [2020-12-01 23:11:27,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f372ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:27, skipping insertion in model container [2020-12-01 23:11:27,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:11:27" (1/1) ... [2020-12-01 23:11:27,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 23:11:27,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 23:11:27,498 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0681a.c[6389,6402] [2020-12-01 23:11:27,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:11:27,521 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 23:11:27,592 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0681a.c[6389,6402] [2020-12-01 23:11:27,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:11:27,616 INFO L208 MainTranslator]: Completed translation [2020-12-01 23:11:27,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:27 WrapperNode [2020-12-01 23:11:27,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 23:11:27,619 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 23:11:27,619 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 23:11:27,619 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 23:11:27,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:27" (1/1) ... [2020-12-01 23:11:27,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:27" (1/1) ... [2020-12-01 23:11:27,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 23:11:27,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 23:11:27,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 23:11:27,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 23:11:27,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:27" (1/1) ... [2020-12-01 23:11:27,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:27" (1/1) ... [2020-12-01 23:11:27,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:27" (1/1) ... [2020-12-01 23:11:27,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:27" (1/1) ... [2020-12-01 23:11:27,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:27" (1/1) ... [2020-12-01 23:11:27,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:27" (1/1) ... [2020-12-01 23:11:27,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:27" (1/1) ... [2020-12-01 23:11:27,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 23:11:27,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 23:11:27,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 23:11:27,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 23:11:27,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:11:27,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 23:11:27,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 23:11:27,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-01 23:11:27,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 23:11:27,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-01 23:11:27,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 23:11:27,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 23:11:27,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 23:11:27,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-01 23:11:27,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 23:11:28,840 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 23:11:28,841 INFO L298 CfgBuilder]: Removed 48 assume(true) statements. [2020-12-01 23:11:28,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:11:28 BoogieIcfgContainer [2020-12-01 23:11:28,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 23:11:28,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 23:11:28,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 23:11:28,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 23:11:28,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:11:27" (1/3) ... [2020-12-01 23:11:28,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@723267ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:11:28, skipping insertion in model container [2020-12-01 23:11:28,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:27" (2/3) ... [2020-12-01 23:11:28,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@723267ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:11:28, skipping insertion in model container [2020-12-01 23:11:28,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:11:28" (3/3) ... [2020-12-01 23:11:28,856 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0681a.c [2020-12-01 23:11:28,873 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 23:11:28,877 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 23:11:28,890 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 23:11:28,919 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 23:11:28,920 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 23:11:28,920 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 23:11:28,920 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 23:11:28,920 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 23:11:28,920 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 23:11:28,921 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 23:11:28,921 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 23:11:28,940 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states. [2020-12-01 23:11:28,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 23:11:28,947 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:11:28,948 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:11:28,948 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:11:28,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:11:28,954 INFO L82 PathProgramCache]: Analyzing trace with hash 531143789, now seen corresponding path program 1 times [2020-12-01 23:11:28,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 23:11:28,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524938343] [2020-12-01 23:11:28,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 23:11:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:11:29,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:11:29,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524938343] [2020-12-01 23:11:29,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:11:29,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 23:11:29,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537963334] [2020-12-01 23:11:29,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 23:11:29,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 23:11:29,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 23:11:29,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:11:29,174 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 2 states. [2020-12-01 23:11:29,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:11:29,209 INFO L93 Difference]: Finished difference Result 234 states and 394 transitions. [2020-12-01 23:11:29,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 23:11:29,211 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-01 23:11:29,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:11:29,225 INFO L225 Difference]: With dead ends: 234 [2020-12-01 23:11:29,225 INFO L226 Difference]: Without dead ends: 115 [2020-12-01 23:11:29,229 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:11:29,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-12-01 23:11:29,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-12-01 23:11:29,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-12-01 23:11:29,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 164 transitions. [2020-12-01 23:11:29,283 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 164 transitions. Word has length 11 [2020-12-01 23:11:29,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:11:29,283 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 164 transitions. [2020-12-01 23:11:29,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 23:11:29,284 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 164 transitions. [2020-12-01 23:11:29,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 23:11:29,285 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:11:29,285 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:11:29,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 23:11:29,286 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:11:29,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:11:29,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1379574948, now seen corresponding path program 1 times [2020-12-01 23:11:29,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 23:11:29,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746467107] [2020-12-01 23:11:29,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 23:11:29,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:11:29,402 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:11:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:11:29,530 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:11:29,581 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 23:11:29,581 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 23:11:29,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 23:11:29,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:11:29 BoogieIcfgContainer [2020-12-01 23:11:29,629 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 23:11:29,630 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 23:11:29,630 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 23:11:29,630 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 23:11:29,631 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:11:28" (3/4) ... [2020-12-01 23:11:29,635 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 23:11:29,635 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 23:11:29,638 INFO L168 Benchmark]: Toolchain (without parser) took 2508.31 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.1 MB in the beginning and 42.0 MB in the end (delta: -10.9 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. [2020-12-01 23:11:29,639 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 44.0 MB. Free memory was 23.9 MB in the beginning and 23.8 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:11:29,640 INFO L168 Benchmark]: CACSL2BoogieTranslator took 484.43 ms. Allocated memory is still 54.5 MB. Free memory was 30.9 MB in the beginning and 29.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-12-01 23:11:29,641 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.37 ms. Allocated memory is still 54.5 MB. Free memory was 29.2 MB in the beginning and 25.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:11:29,642 INFO L168 Benchmark]: Boogie Preprocessor took 124.24 ms. Allocated memory is still 54.5 MB. Free memory was 25.6 MB in the beginning and 34.9 MB in the end (delta: -9.2 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2020-12-01 23:11:29,643 INFO L168 Benchmark]: RCFGBuilder took 995.92 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 34.9 MB in the beginning and 38.2 MB in the end (delta: -3.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. [2020-12-01 23:11:29,644 INFO L168 Benchmark]: TraceAbstraction took 781.59 ms. Allocated memory is still 67.1 MB. Free memory was 37.9 MB in the beginning and 42.4 MB in the end (delta: -4.5 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. [2020-12-01 23:11:29,644 INFO L168 Benchmark]: Witness Printer took 5.52 ms. Allocated memory is still 67.1 MB. Free memory is still 42.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:11:29,649 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 44.0 MB. Free memory was 23.9 MB in the beginning and 23.8 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 484.43 ms. Allocated memory is still 54.5 MB. Free memory was 30.9 MB in the beginning and 29.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 95.37 ms. Allocated memory is still 54.5 MB. Free memory was 29.2 MB in the beginning and 25.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 124.24 ms. Allocated memory is still 54.5 MB. Free memory was 25.6 MB in the beginning and 34.9 MB in the end (delta: -9.2 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. * RCFGBuilder took 995.92 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 34.9 MB in the beginning and 38.2 MB in the end (delta: -3.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 781.59 ms. Allocated memory is still 67.1 MB. Free memory was 37.9 MB in the beginning and 42.4 MB in the end (delta: -4.5 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. * Witness Printer took 5.52 ms. Allocated memory is still 67.1 MB. Free memory is still 42.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 270]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, 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) == 0 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) == 0) [L270] 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, 118 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=118occurred 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 0.2.0-096883e [2020-12-01 23:11:32,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 23:11:32,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 23:11:32,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-01 23:11:32,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 23:11:32,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 23:11:32,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 23:11:32,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 23:11:32,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 23:11:32,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 23:11:32,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 23:11:32,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 23:11:32,161 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 23:11:32,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 23:11:32,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 23:11:32,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 23:11:32,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-01 23:11:32,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 23:11:32,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 23:11:32,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 23:11:32,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 23:11:32,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 23:11:32,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 23:11:32,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 23:11:32,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 23:11:32,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 23:11:32,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 23:11:32,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 23:11:32,190 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 23:11:32,218 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 23:11:32,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 23:11:32,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 23:11:32,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 23:11:32,221 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 23:11:32,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 23:11:32,222 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 23:11:32,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 23:11:32,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 23:11:32,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 23:11:32,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 23:11:32,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 23:11:32,223 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 23:11:32,224 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 23:11:32,224 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 23:11:32,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 23:11:32,225 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 23:11:32,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 23:11:32,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 23:11:32,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 23:11:32,226 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 23:11:32,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 23:11:32,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:11:32,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 23:11:32,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 23:11:32,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 23:11:32,228 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 23:11:32,228 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 23:11:32,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 23:11:32,229 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 23:11:32,229 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 23:11:32,229 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50b586478a7305427fbe78a3e49b383cfc2fc5af [2020-12-01 23:11:32,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 23:11:32,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 23:11:32,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 23:11:32,675 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 23:11:32,675 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 23:11:32,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0681a.c [2020-12-01 23:11:32,746 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5b36ed58/462bb100e2bd417095d46f4c6f215b3b/FLAGe213d0b9e [2020-12-01 23:11:33,344 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 23:11:33,345 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0681a.c [2020-12-01 23:11:33,358 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5b36ed58/462bb100e2bd417095d46f4c6f215b3b/FLAGe213d0b9e [2020-12-01 23:11:33,693 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5b36ed58/462bb100e2bd417095d46f4c6f215b3b [2020-12-01 23:11:33,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 23:11:33,698 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 23:11:33,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 23:11:33,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 23:11:33,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 23:11:33,706 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:11:33" (1/1) ... [2020-12-01 23:11:33,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@693b237e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:33, skipping insertion in model container [2020-12-01 23:11:33,710 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:11:33" (1/1) ... [2020-12-01 23:11:33,724 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 23:11:33,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 23:11:34,106 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0681a.c[6389,6402] [2020-12-01 23:11:34,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:11:34,142 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 23:11:34,210 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0681a.c[6389,6402] [2020-12-01 23:11:34,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:11:34,250 INFO L208 MainTranslator]: Completed translation [2020-12-01 23:11:34,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:34 WrapperNode [2020-12-01 23:11:34,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 23:11:34,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 23:11:34,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 23:11:34,256 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 23:11:34,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:34" (1/1) ... [2020-12-01 23:11:34,312 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:34" (1/1) ... [2020-12-01 23:11:34,387 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 23:11:34,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 23:11:34,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 23:11:34,389 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 23:11:34,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:34" (1/1) ... [2020-12-01 23:11:34,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:34" (1/1) ... [2020-12-01 23:11:34,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:34" (1/1) ... [2020-12-01 23:11:34,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:34" (1/1) ... [2020-12-01 23:11:34,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:34" (1/1) ... [2020-12-01 23:11:34,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:34" (1/1) ... [2020-12-01 23:11:34,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:34" (1/1) ... [2020-12-01 23:11:34,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 23:11:34,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 23:11:34,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 23:11:34,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 23:11:34,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:11:34,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-01 23:11:34,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-01 23:11:34,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 23:11:34,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 23:11:34,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-12-01 23:11:34,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-01 23:11:34,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 23:11:34,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 23:11:34,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-01 23:11:34,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 23:12:28,144 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 23:12:28,144 INFO L298 CfgBuilder]: Removed 48 assume(true) statements. [2020-12-01 23:12:28,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:12:28 BoogieIcfgContainer [2020-12-01 23:12:28,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 23:12:28,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 23:12:28,150 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 23:12:28,154 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 23:12:28,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:11:33" (1/3) ... [2020-12-01 23:12:28,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6afbd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:12:28, skipping insertion in model container [2020-12-01 23:12:28,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:11:34" (2/3) ... [2020-12-01 23:12:28,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c6afbd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:12:28, skipping insertion in model container [2020-12-01 23:12:28,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:12:28" (3/3) ... [2020-12-01 23:12:28,159 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0681a.c [2020-12-01 23:12:28,177 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 23:12:28,182 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 23:12:28,197 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 23:12:28,228 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 23:12:28,229 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 23:12:28,229 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 23:12:28,229 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 23:12:28,229 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 23:12:28,230 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 23:12:28,230 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 23:12:28,230 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 23:12:28,251 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states. [2020-12-01 23:12:28,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 23:12:28,258 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:12:28,259 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:12:28,259 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:12:28,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:12:28,266 INFO L82 PathProgramCache]: Analyzing trace with hash 531143789, now seen corresponding path program 1 times [2020-12-01 23:12:28,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:12:28,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1788931574] [2020-12-01 23:12:28,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-01 23:12:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:12:28,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-01 23:12:28,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 23:12:28,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:12:28,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 23:12:28,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:12:28,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1788931574] [2020-12-01 23:12:28,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:12:28,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-01 23:12:28,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057496634] [2020-12-01 23:12:28,859 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 23:12:28,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 23:12:28,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 23:12:28,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:12:28,885 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 2 states. [2020-12-01 23:12:28,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:12:28,953 INFO L93 Difference]: Finished difference Result 234 states and 394 transitions. [2020-12-01 23:12:28,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 23:12:28,957 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-01 23:12:28,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:12:28,975 INFO L225 Difference]: With dead ends: 234 [2020-12-01 23:12:28,976 INFO L226 Difference]: Without dead ends: 115 [2020-12-01 23:12:28,980 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 [2020-12-01 23:12:29,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-12-01 23:12:29,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-12-01 23:12:29,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-12-01 23:12:29,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 164 transitions. [2020-12-01 23:12:29,066 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 164 transitions. Word has length 11 [2020-12-01 23:12:29,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:12:29,067 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 164 transitions. [2020-12-01 23:12:29,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 23:12:29,068 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 164 transitions. [2020-12-01 23:12:29,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 23:12:29,071 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:12:29,071 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:12:29,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 23:12:29,286 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:12:29,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:12:29,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1379574948, now seen corresponding path program 1 times [2020-12-01 23:12:29,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:12:29,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [135421251] [2020-12-01 23:12:29,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-01 23:12:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:12:29,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-01 23:12:29,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 23:12:30,207 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-12-01 23:12:30,554 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-01 23:12:30,945 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-01 23:12:31,594 WARN L197 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-12-01 23:12:32,289 WARN L197 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-12-01 23:12:32,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:12:32,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 23:12:33,312 WARN L197 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-12-01 23:12:34,388 WARN L197 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-01 23:12:34,410 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-01 23:12:36,315 WARN L197 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-12-01 23:12:37,409 WARN L197 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-12-01 23:12:37,422 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-01 23:12:38,497 WARN L197 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-12-01 23:12:38,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:12:38,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [135421251] [2020-12-01 23:12:38,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:12:38,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2020-12-01 23:12:38,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633705283] [2020-12-01 23:12:38,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-01 23:12:38,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 23:12:38,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-01 23:12:38,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-12-01 23:12:38,584 INFO L87 Difference]: Start difference. First operand 115 states and 164 transitions. Second operand 12 states. [2020-12-01 23:12:39,385 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-01 23:12:39,837 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-01 23:12:40,259 WARN L197 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-12-01 23:12:40,728 WARN L197 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-12-01 23:12:42,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:12:42,872 INFO L93 Difference]: Finished difference Result 171 states and 238 transitions. [2020-12-01 23:12:42,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 23:12:42,877 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 13 [2020-12-01 23:12:42,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:12:42,878 INFO L225 Difference]: With dead ends: 171 [2020-12-01 23:12:42,878 INFO L226 Difference]: Without dead ends: 76 [2020-12-01 23:12:42,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-12-01 23:12:42,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-12-01 23:12:42,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-12-01 23:12:42,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-12-01 23:12:42,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 98 transitions. [2020-12-01 23:12:42,907 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 98 transitions. Word has length 13 [2020-12-01 23:12:42,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:12:42,908 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 98 transitions. [2020-12-01 23:12:42,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-01 23:12:42,909 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 98 transitions. [2020-12-01 23:12:42,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 23:12:42,911 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:12:42,911 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:12:43,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 23:12:43,125 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:12:43,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:12:43,126 INFO L82 PathProgramCache]: Analyzing trace with hash -640703133, now seen corresponding path program 1 times [2020-12-01 23:12:43,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:12:43,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [176575146] [2020-12-01 23:12:43,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-01 23:12:43,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:12:43,938 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:12:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:12:44,676 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:12:44,809 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-12-01 23:12:44,810 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 23:12:45,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-01 23:12:45,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:12:45 BoogieIcfgContainer [2020-12-01 23:12:45,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 23:12:45,087 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 23:12:45,087 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 23:12:45,087 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 23:12:45,088 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:12:28" (3/4) ... [2020-12-01 23:12:45,090 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 23:12:45,191 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-01 23:12:45,191 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 23:12:45,192 INFO L168 Benchmark]: Toolchain (without parser) took 71494.06 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.0 MB in the beginning and 23.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. [2020-12-01 23:12:45,192 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 50.3 MB. Free memory was 32.0 MB in the beginning and 32.0 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:12:45,194 INFO L168 Benchmark]: CACSL2BoogieTranslator took 554.16 ms. Allocated memory is still 50.3 MB. Free memory was 26.8 MB in the beginning and 21.5 MB in the end (delta: 5.3 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-12-01 23:12:45,195 INFO L168 Benchmark]: Boogie Procedure Inliner took 131.42 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 21.5 MB in the beginning and 41.5 MB in the end (delta: -20.0 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-12-01 23:12:45,196 INFO L168 Benchmark]: Boogie Preprocessor took 73.46 ms. Allocated memory is still 60.8 MB. Free memory was 41.5 MB in the beginning and 37.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 23:12:45,196 INFO L168 Benchmark]: RCFGBuilder took 53685.14 ms. Allocated memory is still 60.8 MB. Free memory was 37.5 MB in the beginning and 35.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. [2020-12-01 23:12:45,197 INFO L168 Benchmark]: TraceAbstraction took 16936.88 ms. Allocated memory is still 60.8 MB. Free memory was 34.4 MB in the beginning and 29.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2020-12-01 23:12:45,200 INFO L168 Benchmark]: Witness Printer took 104.05 ms. Allocated memory is still 60.8 MB. Free memory was 28.8 MB in the beginning and 23.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 23:12:45,206 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 50.3 MB. Free memory was 32.0 MB in the beginning and 32.0 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 554.16 ms. Allocated memory is still 50.3 MB. Free memory was 26.8 MB in the beginning and 21.5 MB in the end (delta: 5.3 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 131.42 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 21.5 MB in the beginning and 41.5 MB in the end (delta: -20.0 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 73.46 ms. Allocated memory is still 60.8 MB. Free memory was 41.5 MB in the beginning and 37.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 53685.14 ms. Allocated memory is still 60.8 MB. Free memory was 37.5 MB in the beginning and 35.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16936.88 ms. Allocated memory is still 60.8 MB. Free memory was 34.4 MB in the beginning and 29.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. * Witness Printer took 104.05 ms. Allocated memory is still 60.8 MB. Free memory was 28.8 MB in the beginning and 23.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 270]: a call to reach_error is reachable a call to reach_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) == 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] [L269] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L270] 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, 118 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 250 SDtfs, 741 SDslu, 12 SDs, 0 SdLazy, 28 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 9.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred 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: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 8.8s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 44 ConstructedInterpolants, 13 QuantifiedInterpolants, 5360 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...