./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0663b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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_0663b.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 8da48de392bfeb98cf442ccd07f59108302b2d35 ........................................................................................................................................................................................................................................................................................................................................... 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_0663b.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 8da48de392bfeb98cf442ccd07f59108302b2d35 ................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 01:30:31,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 01:30:31,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 01:30:31,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 01:30:31,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 01:30:31,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 01:30:31,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 01:30:31,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 01:30:31,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 01:30:31,118 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 01:30:31,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 01:30:31,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 01:30:31,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 01:30:31,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 01:30:31,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 01:30:31,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 01:30:31,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 01:30:31,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 01:30:31,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 01:30:31,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 01:30:31,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 01:30:31,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 01:30:31,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 01:30:31,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 01:30:31,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 01:30:31,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 01:30:31,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 01:30:31,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 01:30:31,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 01:30:31,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 01:30:31,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 01:30:31,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 01:30:31,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 01:30:31,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 01:30:31,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 01:30:31,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 01:30:31,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 01:30:31,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 01:30:31,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 01:30:31,153 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 01:30:31,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 01:30:31,154 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 01:30:31,183 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 01:30:31,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 01:30:31,184 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 01:30:31,184 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 01:30:31,186 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 01:30:31,186 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 01:30:31,186 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 01:30:31,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 01:30:31,186 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 01:30:31,187 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 01:30:31,187 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 01:30:31,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 01:30:31,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 01:30:31,188 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 01:30:31,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 01:30:31,188 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 01:30:31,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 01:30:31,188 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 01:30:31,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 01:30:31,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 01:30:31,189 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 01:30:31,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 01:30:31,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:30:31,194 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 01:30:31,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 01:30:31,194 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 01:30:31,194 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 01:30:31,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 01:30:31,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 01:30:31,195 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 01:30:31,195 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8da48de392bfeb98cf442ccd07f59108302b2d35 [2021-08-26 01:30:31,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 01:30:31,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 01:30:31,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 01:30:31,477 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 01:30:31,478 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 01:30:31,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0663b.c [2021-08-26 01:30:31,533 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2623ecd74/ee45597f9ed54e07aa836a465c6519af/FLAG4df0f984d [2021-08-26 01:30:31,909 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 01:30:31,910 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0663b.c [2021-08-26 01:30:31,924 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2623ecd74/ee45597f9ed54e07aa836a465c6519af/FLAG4df0f984d [2021-08-26 01:30:32,309 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2623ecd74/ee45597f9ed54e07aa836a465c6519af [2021-08-26 01:30:32,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 01:30:32,313 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 01:30:32,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 01:30:32,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 01:30:32,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 01:30:32,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:30:32" (1/1) ... [2021-08-26 01:30:32,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35dc8a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:32, skipping insertion in model container [2021-08-26 01:30:32,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:30:32" (1/1) ... [2021-08-26 01:30:32,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 01:30:32,355 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 01:30:32,501 WARN L228 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_0663b.c[6219,6232] [2021-08-26 01:30:32,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:30:32,539 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 01:30:32,589 WARN L228 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_0663b.c[6219,6232] [2021-08-26 01:30:32,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:30:32,600 INFO L208 MainTranslator]: Completed translation [2021-08-26 01:30:32,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:32 WrapperNode [2021-08-26 01:30:32,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 01:30:32,601 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 01:30:32,602 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 01:30:32,602 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 01:30:32,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:32" (1/1) ... [2021-08-26 01:30:32,613 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:32" (1/1) ... [2021-08-26 01:30:32,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 01:30:32,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 01:30:32,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 01:30:32,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 01:30:32,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:32" (1/1) ... [2021-08-26 01:30:32,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:32" (1/1) ... [2021-08-26 01:30:32,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:32" (1/1) ... [2021-08-26 01:30:32,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:32" (1/1) ... [2021-08-26 01:30:32,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:32" (1/1) ... [2021-08-26 01:30:32,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:32" (1/1) ... [2021-08-26 01:30:32,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:32" (1/1) ... [2021-08-26 01:30:32,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 01:30:32,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 01:30:32,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 01:30:32,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 01:30:32,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:32" (1/1) ... [2021-08-26 01:30:32,737 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:30:32,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:30:32,754 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 01:30:32,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 01:30:32,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 01:30:32,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 01:30:32,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-08-26 01:30:32,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-26 01:30:32,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-08-26 01:30:32,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 01:30:32,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 01:30:32,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-26 01:30:32,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-08-26 01:30:32,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 01:30:33,415 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 01:30:33,415 INFO L299 CfgBuilder]: Removed 44 assume(true) statements. [2021-08-26 01:30:33,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:30:33 BoogieIcfgContainer [2021-08-26 01:30:33,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 01:30:33,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 01:30:33,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 01:30:33,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 01:30:33,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 01:30:32" (1/3) ... [2021-08-26 01:30:33,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc10cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:30:33, skipping insertion in model container [2021-08-26 01:30:33,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:32" (2/3) ... [2021-08-26 01:30:33,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc10cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:30:33, skipping insertion in model container [2021-08-26 01:30:33,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:30:33" (3/3) ... [2021-08-26 01:30:33,422 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0663b.c [2021-08-26 01:30:33,425 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 01:30:33,425 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 01:30:33,453 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 01:30:33,457 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 01:30:33,457 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 01:30:33,469 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 113 states have (on average 1.7079646017699115) internal successors, (193), 114 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:30:33,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-26 01:30:33,472 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:30:33,473 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:30:33,473 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:30:33,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:30:33,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1059427896, now seen corresponding path program 1 times [2021-08-26 01:30:33,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 01:30:33,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833099476] [2021-08-26 01:30:33,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:30:33,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 01:30:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:30:33,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:30:33,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 01:30:33,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833099476] [2021-08-26 01:30:33,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833099476] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 01:30:33,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:30:33,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 01:30:33,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665829028] [2021-08-26 01:30:33,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 01:30:33,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 01:30:33,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 01:30:33,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:30:33,640 INFO L87 Difference]: Start difference. First operand has 115 states, 113 states have (on average 1.7079646017699115) internal successors, (193), 114 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:30:33,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:30:33,657 INFO L93 Difference]: Finished difference Result 227 states and 382 transitions. [2021-08-26 01:30:33,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 01:30:33,658 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-08-26 01:30:33,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:30:33,663 INFO L225 Difference]: With dead ends: 227 [2021-08-26 01:30:33,664 INFO L226 Difference]: Without dead ends: 111 [2021-08-26 01:30:33,666 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:30:33,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-08-26 01:30:33,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-08-26 01:30:33,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.4454545454545455) internal successors, (159), 110 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:30:33,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2021-08-26 01:30:33,690 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 11 [2021-08-26 01:30:33,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:30:33,690 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2021-08-26 01:30:33,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:30:33,690 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2021-08-26 01:30:33,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-26 01:30:33,690 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:30:33,691 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:30:33,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 01:30:33,691 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:30:33,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:30:33,691 INFO L82 PathProgramCache]: Analyzing trace with hash -7417919, now seen corresponding path program 1 times [2021-08-26 01:30:33,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 01:30:33,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106844888] [2021-08-26 01:30:33,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:30:33,692 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 01:30:33,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 01:30:33,738 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 01:30:33,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 01:30:33,794 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-26 01:30:33,794 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 01:30:33,795 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 01:30:33,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 01:30:33,800 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 01:30:33,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 01:30:33 BoogieIcfgContainer [2021-08-26 01:30:33,822 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 01:30:33,823 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 01:30:33,823 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 01:30:33,823 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 01:30:33,823 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:30:33" (3/4) ... [2021-08-26 01:30:33,826 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-26 01:30:33,826 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 01:30:33,827 INFO L168 Benchmark]: Toolchain (without parser) took 1513.25 ms. Allocated memory was 56.6 MB in the beginning and 83.9 MB in the end (delta: 27.3 MB). Free memory was 35.4 MB in the beginning and 58.4 MB in the end (delta: -23.0 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. [2021-08-26 01:30:33,828 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 56.6 MB. Free memory was 38.8 MB in the beginning and 38.7 MB in the end (delta: 44.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:30:33,828 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.64 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 35.2 MB in the beginning and 49.4 MB in the end (delta: -14.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-26 01:30:33,828 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.38 ms. Allocated memory is still 69.2 MB. Free memory was 49.3 MB in the beginning and 45.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 01:30:33,829 INFO L168 Benchmark]: Boogie Preprocessor took 75.76 ms. Allocated memory is still 69.2 MB. Free memory was 45.9 MB in the beginning and 42.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 01:30:33,829 INFO L168 Benchmark]: RCFGBuilder took 687.31 ms. Allocated memory is still 69.2 MB. Free memory was 42.8 MB in the beginning and 42.6 MB in the end (delta: 222.9 kB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:30:33,829 INFO L168 Benchmark]: TraceAbstraction took 404.28 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 42.3 MB in the beginning and 58.9 MB in the end (delta: -16.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. [2021-08-26 01:30:33,830 INFO L168 Benchmark]: Witness Printer took 2.84 ms. Allocated memory is still 83.9 MB. Free memory was 58.9 MB in the beginning and 58.4 MB in the end (delta: 472.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:30:33,832 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 56.6 MB. Free memory was 38.8 MB in the beginning and 38.7 MB in the end (delta: 44.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 278.64 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 35.2 MB in the beginning and 49.4 MB in the end (delta: -14.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.38 ms. Allocated memory is still 69.2 MB. Free memory was 49.3 MB in the beginning and 45.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 75.76 ms. Allocated memory is still 69.2 MB. Free memory was 45.9 MB in the beginning and 42.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 687.31 ms. Allocated memory is still 69.2 MB. Free memory was 42.8 MB in the beginning and 42.6 MB in the end (delta: 222.9 kB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 404.28 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 42.3 MB in the beginning and 58.9 MB in the end (delta: -16.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. * Witness Printer took 2.84 ms. Allocated memory is still 83.9 MB. Free memory was 58.9 MB in the beginning and 58.4 MB in the end (delta: 472.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 262]: 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 261. 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={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, 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] [L253] double x = 0.0; [L254] double y = __VERIFIER_nondet_double(); [L256] COND TRUE y > 0.0 [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, 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={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, 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={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, 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={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L258] double res = __ieee754_atan2(y, x); [L261] COND TRUE res != pi_o_2 VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L262] reach_error() VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, 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, 115 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 347.3ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 6.8ms, AutomataDifference: 34.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 164 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 15.6ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 6.0ms SsaConstructionTime, 67.6ms SatisfiabilityAnalysisTime, 68.6ms InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 [2021-08-26 01:30:33,861 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 01:30:35,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 01:30:35,433 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 01:30:35,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 01:30:35,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 01:30:35,478 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 01:30:35,479 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 01:30:35,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 01:30:35,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 01:30:35,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 01:30:35,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 01:30:35,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 01:30:35,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 01:30:35,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 01:30:35,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 01:30:35,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 01:30:35,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 01:30:35,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 01:30:35,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 01:30:35,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 01:30:35,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 01:30:35,510 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 01:30:35,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 01:30:35,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 01:30:35,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 01:30:35,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 01:30:35,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 01:30:35,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 01:30:35,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 01:30:35,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 01:30:35,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 01:30:35,515 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 01:30:35,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 01:30:35,516 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 01:30:35,517 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 01:30:35,517 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 01:30:35,517 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 01:30:35,517 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 01:30:35,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 01:30:35,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 01:30:35,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 01:30:35,521 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-26 01:30:35,552 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 01:30:35,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 01:30:35,553 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 01:30:35,553 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 01:30:35,555 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 01:30:35,555 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 01:30:35,555 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 01:30:35,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 01:30:35,555 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 01:30:35,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 01:30:35,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 01:30:35,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 01:30:35,556 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 01:30:35,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 01:30:35,556 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-26 01:30:35,556 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-26 01:30:35,556 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 01:30:35,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 01:30:35,557 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 01:30:35,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 01:30:35,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 01:30:35,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 01:30:35,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 01:30:35,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:30:35,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 01:30:35,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 01:30:35,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 01:30:35,558 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-26 01:30:35,558 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-26 01:30:35,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 01:30:35,558 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 01:30:35,558 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-26 01:30:35,558 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8da48de392bfeb98cf442ccd07f59108302b2d35 [2021-08-26 01:30:35,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 01:30:35,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 01:30:35,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 01:30:35,806 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 01:30:35,807 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 01:30:35,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0663b.c [2021-08-26 01:30:35,906 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb4f677f3/9ddecdcd21054272b2d89129b442952e/FLAGa9fdad9c9 [2021-08-26 01:30:36,277 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 01:30:36,278 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0663b.c [2021-08-26 01:30:36,285 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb4f677f3/9ddecdcd21054272b2d89129b442952e/FLAGa9fdad9c9 [2021-08-26 01:30:36,694 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb4f677f3/9ddecdcd21054272b2d89129b442952e [2021-08-26 01:30:36,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 01:30:36,697 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 01:30:36,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 01:30:36,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 01:30:36,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 01:30:36,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:30:36" (1/1) ... [2021-08-26 01:30:36,703 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@756cf41c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:36, skipping insertion in model container [2021-08-26 01:30:36,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:30:36" (1/1) ... [2021-08-26 01:30:36,709 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 01:30:36,737 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 01:30:36,900 WARN L228 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_0663b.c[6219,6232] [2021-08-26 01:30:36,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:30:36,917 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 01:30:36,966 WARN L228 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_0663b.c[6219,6232] [2021-08-26 01:30:36,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:30:36,999 INFO L208 MainTranslator]: Completed translation [2021-08-26 01:30:37,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:36 WrapperNode [2021-08-26 01:30:37,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 01:30:37,001 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 01:30:37,001 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 01:30:37,001 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 01:30:37,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:36" (1/1) ... [2021-08-26 01:30:37,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:36" (1/1) ... [2021-08-26 01:30:37,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 01:30:37,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 01:30:37,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 01:30:37,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 01:30:37,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:36" (1/1) ... [2021-08-26 01:30:37,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:36" (1/1) ... [2021-08-26 01:30:37,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:36" (1/1) ... [2021-08-26 01:30:37,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:36" (1/1) ... [2021-08-26 01:30:37,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:36" (1/1) ... [2021-08-26 01:30:37,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:36" (1/1) ... [2021-08-26 01:30:37,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:36" (1/1) ... [2021-08-26 01:30:37,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 01:30:37,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 01:30:37,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 01:30:37,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 01:30:37,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:36" (1/1) ... [2021-08-26 01:30:37,143 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:30:37,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:30:37,183 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 01:30:37,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 01:30:37,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-08-26 01:30:37,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-08-26 01:30:37,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-26 01:30:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 01:30:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-08-26 01:30:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-26 01:30:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 01:30:37,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 01:30:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-26 01:30:37,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 01:31:18,740 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 01:31:18,741 INFO L299 CfgBuilder]: Removed 44 assume(true) statements. [2021-08-26 01:31:18,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:31:18 BoogieIcfgContainer [2021-08-26 01:31:18,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 01:31:18,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 01:31:18,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 01:31:18,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 01:31:18,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 01:30:36" (1/3) ... [2021-08-26 01:31:18,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1199c23f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:31:18, skipping insertion in model container [2021-08-26 01:31:18,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:30:36" (2/3) ... [2021-08-26 01:31:18,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1199c23f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:31:18, skipping insertion in model container [2021-08-26 01:31:18,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:31:18" (3/3) ... [2021-08-26 01:31:18,748 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0663b.c [2021-08-26 01:31:18,752 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 01:31:18,752 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 01:31:18,783 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 01:31:18,787 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 01:31:18,788 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 01:31:18,799 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 113 states have (on average 1.7079646017699115) internal successors, (193), 114 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:31:18,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-26 01:31:18,803 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:31:18,803 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:31:18,804 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:31:18,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:31:18,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1059427896, now seen corresponding path program 1 times [2021-08-26 01:31:18,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:31:18,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255917836] [2021-08-26 01:31:18,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:31:18,817 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:31:18,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:31:18,819 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:31:18,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-26 01:31:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:31:19,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-26 01:31:19,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:31:19,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:31:19,504 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:31:19,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:31:19,773 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:31:19,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [255917836] [2021-08-26 01:31:19,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [255917836] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:31:19,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:31:19,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-26 01:31:19,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128540002] [2021-08-26 01:31:19,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 01:31:19,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:31:19,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 01:31:19,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:31:19,791 INFO L87 Difference]: Start difference. First operand has 115 states, 113 states have (on average 1.7079646017699115) internal successors, (193), 114 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:31:19,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:31:19,827 INFO L93 Difference]: Finished difference Result 227 states and 382 transitions. [2021-08-26 01:31:19,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 01:31:19,828 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-08-26 01:31:19,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:31:19,837 INFO L225 Difference]: With dead ends: 227 [2021-08-26 01:31:19,838 INFO L226 Difference]: Without dead ends: 111 [2021-08-26 01:31:19,840 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:31:19,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-08-26 01:31:19,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-08-26 01:31:19,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.4454545454545455) internal successors, (159), 110 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:31:19,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2021-08-26 01:31:19,867 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 11 [2021-08-26 01:31:19,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:31:19,867 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2021-08-26 01:31:19,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:31:19,868 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2021-08-26 01:31:19,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-26 01:31:19,868 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:31:19,874 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:31:19,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-26 01:31:20,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:31:20,075 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:31:20,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:31:20,076 INFO L82 PathProgramCache]: Analyzing trace with hash -7417919, now seen corresponding path program 1 times [2021-08-26 01:31:20,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:31:20,076 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1430441968] [2021-08-26 01:31:20,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:31:20,076 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:31:20,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:31:20,077 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:31:20,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-26 01:31:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:31:20,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-26 01:31:20,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:31:21,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-08-26 01:31:25,230 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-26 01:31:25,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 63 [2021-08-26 01:31:25,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2021-08-26 01:31:32,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:31:32,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:31:37,929 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:31:37,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1430441968] [2021-08-26 01:31:37,930 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-26 01:31:37,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1369257216] [2021-08-26 01:31:37,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:31:37,931 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-26 01:31:37,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-26 01:31:37,932 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-26 01:31:37,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-08-26 01:31:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:31:40,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-26 01:31:40,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:31:40,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-08-26 01:31:43,627 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-26 01:31:43,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 63 [2021-08-26 01:31:43,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2021-08-26 01:31:45,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:31:45,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:31:48,680 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-26 01:31:48,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910200268] [2021-08-26 01:31:48,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:31:48,682 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 01:31:48,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:31:48,683 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 01:31:48,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-26 01:31:48,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:31:48,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 17 conjunts are in the unsatisfiable core [2021-08-26 01:31:48,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:31:49,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-08-26 01:31:51,734 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-26 01:31:51,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 63 [2021-08-26 01:31:52,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2021-08-26 01:31:53,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:31:53,767 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:31:56,702 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Alternating quantifiers not yet supported [2021-08-26 01:31:56,702 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:31:56,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-26 01:31:56,702 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-26 01:31:56,702 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-26 01:31:56,706 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 01:31:56,725 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-08-26 01:31:56,934 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-08-26 01:31:57,124 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2021-08-26 01:31:57,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2021-08-26 01:31:57,318 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 01:31:57,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 01:31:57 BoogieIcfgContainer [2021-08-26 01:31:57,327 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 01:31:57,327 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 01:31:57,327 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 01:31:57,328 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 01:31:57,328 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:31:18" (3/4) ... [2021-08-26 01:31:57,330 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-26 01:31:57,330 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 01:31:57,331 INFO L168 Benchmark]: Toolchain (without parser) took 80633.18 ms. Allocated memory was 50.3 MB in the beginning and 77.6 MB in the end (delta: 27.3 MB). Free memory was 25.8 MB in the beginning and 40.3 MB in the end (delta: -14.5 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2021-08-26 01:31:57,331 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 50.3 MB. Free memory was 32.5 MB in the beginning and 32.5 MB in the end (delta: 60.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:31:57,331 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.93 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 25.6 MB in the beginning and 37.7 MB in the end (delta: -12.1 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2021-08-26 01:31:57,332 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.15 ms. Allocated memory is still 60.8 MB. Free memory was 37.6 MB in the beginning and 34.1 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 01:31:57,332 INFO L168 Benchmark]: Boogie Preprocessor took 68.26 ms. Allocated memory is still 60.8 MB. Free memory was 34.1 MB in the beginning and 30.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 01:31:57,333 INFO L168 Benchmark]: RCFGBuilder took 41605.69 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 30.6 MB in the beginning and 53.7 MB in the end (delta: -23.1 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. [2021-08-26 01:31:57,333 INFO L168 Benchmark]: TraceAbstraction took 38583.44 ms. Allocated memory is still 77.6 MB. Free memory was 52.9 MB in the beginning and 40.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2021-08-26 01:31:57,333 INFO L168 Benchmark]: Witness Printer took 2.71 ms. Allocated memory is still 77.6 MB. Free memory was 40.9 MB in the beginning and 40.3 MB in the end (delta: 615.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:31:57,335 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 50.3 MB. Free memory was 32.5 MB in the beginning and 32.5 MB in the end (delta: 60.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 300.93 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 25.6 MB in the beginning and 37.7 MB in the end (delta: -12.1 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.15 ms. Allocated memory is still 60.8 MB. Free memory was 37.6 MB in the beginning and 34.1 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.26 ms. Allocated memory is still 60.8 MB. Free memory was 34.1 MB in the beginning and 30.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 41605.69 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 30.6 MB in the beginning and 53.7 MB in the end (delta: -23.1 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 38583.44 ms. Allocated memory is still 77.6 MB. Free memory was 52.9 MB in the beginning and 40.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * Witness Printer took 2.71 ms. Allocated memory is still 77.6 MB. Free memory was 40.9 MB in the beginning and 40.3 MB in the end (delta: 615.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 262]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. 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; [L253] double x = 0.0; [L254] double y = __VERIFIER_nondet_double(); [L256] COND TRUE y > 0.0 [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; [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 [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 [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; [L258] double res = __ieee754_atan2(y, x); [L261] COND TRUE res != pi_o_2 [L262] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 115 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 38535.8ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 7.5ms, AutomataDifference: 61.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 164 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 17.0ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 24.1ms SsaConstructionTime, 241.5ms SatisfiabilityAnalysisTime, 566.4ms InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 115 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-26 01:31:57,568 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-08-26 01:31:57,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...