./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0460.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_0460.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 8f0f01afc4ff6f43b4bc9d2fa2add6f57b41dad4 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_0460.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 8f0f01afc4ff6f43b4bc9d2fa2add6f57b41dad4 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:23:53,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 01:23:53,040 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 01:23:53,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 01:23:53,060 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 01:23:53,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 01:23:53,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 01:23:53,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 01:23:53,064 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 01:23:53,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 01:23:53,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 01:23:53,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 01:23:53,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 01:23:53,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 01:23:53,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 01:23:53,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 01:23:53,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 01:23:53,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 01:23:53,071 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 01:23:53,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 01:23:53,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 01:23:53,074 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 01:23:53,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 01:23:53,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 01:23:53,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 01:23:53,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 01:23:53,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 01:23:53,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 01:23:53,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 01:23:53,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 01:23:53,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 01:23:53,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 01:23:53,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 01:23:53,082 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 01:23:53,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 01:23:53,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 01:23:53,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 01:23:53,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 01:23:53,084 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 01:23:53,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 01:23:53,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 01:23:53,086 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 01:23:53,101 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 01:23:53,102 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 01:23:53,102 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 01:23:53,102 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 01:23:53,103 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 01:23:53,103 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 01:23:53,103 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 01:23:53,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 01:23:53,103 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 01:23:53,104 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 01:23:53,104 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 01:23:53,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 01:23:53,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 01:23:53,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 01:23:53,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 01:23:53,105 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 01:23:53,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 01:23:53,105 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 01:23:53,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 01:23:53,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 01:23:53,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 01:23:53,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 01:23:53,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:23:53,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 01:23:53,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 01:23:53,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 01:23:53,106 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 01:23:53,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 01:23:53,106 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 01:23:53,107 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 01:23:53,107 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f0f01afc4ff6f43b4bc9d2fa2add6f57b41dad4 [2021-08-26 01:23:53,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 01:23:53,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 01:23:53,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 01:23:53,344 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 01:23:53,345 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 01:23:53,345 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0460.c [2021-08-26 01:23:53,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8329d29d1/e14451da03f14550855d5866e35f2ea8/FLAGd7e340cb5 [2021-08-26 01:23:53,767 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 01:23:53,771 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0460.c [2021-08-26 01:23:53,780 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8329d29d1/e14451da03f14550855d5866e35f2ea8/FLAGd7e340cb5 [2021-08-26 01:23:54,158 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8329d29d1/e14451da03f14550855d5866e35f2ea8 [2021-08-26 01:23:54,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 01:23:54,160 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 01:23:54,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 01:23:54,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 01:23:54,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 01:23:54,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:23:54" (1/1) ... [2021-08-26 01:23:54,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@210427ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:23:54, skipping insertion in model container [2021-08-26 01:23:54,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:23:54" (1/1) ... [2021-08-26 01:23:54,169 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 01:23:54,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 01:23:54,358 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_0460.c[5763,5776] [2021-08-26 01:23:54,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:23:54,368 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 01:23:54,429 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_0460.c[5763,5776] [2021-08-26 01:23:54,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:23:54,442 INFO L208 MainTranslator]: Completed translation [2021-08-26 01:23:54,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:23:54 WrapperNode [2021-08-26 01:23:54,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 01:23:54,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 01:23:54,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 01:23:54,445 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 01:23:54,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:23:54" (1/1) ... [2021-08-26 01:23:54,469 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:23:54" (1/1) ... [2021-08-26 01:23:54,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 01:23:54,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 01:23:54,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 01:23:54,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 01:23:54,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:23:54" (1/1) ... [2021-08-26 01:23:54,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:23:54" (1/1) ... [2021-08-26 01:23:54,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:23:54" (1/1) ... [2021-08-26 01:23:54,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:23:54" (1/1) ... [2021-08-26 01:23:54,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:23:54" (1/1) ... [2021-08-26 01:23:54,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:23:54" (1/1) ... [2021-08-26 01:23:54,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:23:54" (1/1) ... [2021-08-26 01:23:54,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 01:23:54,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 01:23:54,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 01:23:54,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 01:23:54,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:23:54" (1/1) ... [2021-08-26 01:23:54,553 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:23:54,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:23:54,565 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 01:23:54,584 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 01:23:54,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 01:23:54,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 01:23:54,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-08-26 01:23:54,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-26 01:23:54,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-08-26 01:23:54,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 01:23:54,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 01:23:54,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-26 01:23:54,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 01:23:55,095 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 01:23:55,096 INFO L299 CfgBuilder]: Removed 34 assume(true) statements. [2021-08-26 01:23:55,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:23:55 BoogieIcfgContainer [2021-08-26 01:23:55,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 01:23:55,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 01:23:55,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 01:23:55,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 01:23:55,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 01:23:54" (1/3) ... [2021-08-26 01:23:55,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e96c59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:23:55, skipping insertion in model container [2021-08-26 01:23:55,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:23:54" (2/3) ... [2021-08-26 01:23:55,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e96c59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:23:55, skipping insertion in model container [2021-08-26 01:23:55,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:23:55" (3/3) ... [2021-08-26 01:23:55,102 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0460.c [2021-08-26 01:23:55,105 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 01:23:55,106 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 01:23:55,131 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 01:23:55,134 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 01:23:55,134 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 01:23:55,153 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 104 states have (on average 1.6826923076923077) internal successors, (175), 105 states have internal predecessors, (175), 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 01:23:55,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-26 01:23:55,156 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:23:55,156 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:23:55,156 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:23:55,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:23:55,159 INFO L82 PathProgramCache]: Analyzing trace with hash 8448415, now seen corresponding path program 1 times [2021-08-26 01:23:55,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 01:23:55,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083317056] [2021-08-26 01:23:55,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:23:55,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 01:23:55,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:23:55,251 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 01:23:55,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 01:23:55,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083317056] [2021-08-26 01:23:55,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083317056] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 01:23:55,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:23:55,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 01:23:55,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114639429] [2021-08-26 01:23:55,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 01:23:55,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 01:23:55,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 01:23:55,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:23:55,265 INFO L87 Difference]: Start difference. First operand has 106 states, 104 states have (on average 1.6826923076923077) internal successors, (175), 105 states have internal predecessors, (175), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 01:23:55,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:23:55,280 INFO L93 Difference]: Finished difference Result 209 states and 346 transitions. [2021-08-26 01:23:55,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 01:23:55,281 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2021-08-26 01:23:55,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:23:55,286 INFO L225 Difference]: With dead ends: 209 [2021-08-26 01:23:55,287 INFO L226 Difference]: Without dead ends: 102 [2021-08-26 01:23:55,288 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 01:23:55,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-08-26 01:23:55,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2021-08-26 01:23:55,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 1.4554455445544554) internal successors, (147), 101 states have internal predecessors, (147), 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 01:23:55,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 147 transitions. [2021-08-26 01:23:55,316 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 147 transitions. Word has length 12 [2021-08-26 01:23:55,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:23:55,317 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 147 transitions. [2021-08-26 01:23:55,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 01:23:55,317 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 147 transitions. [2021-08-26 01:23:55,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-26 01:23:55,317 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:23:55,318 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:23:55,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 01:23:55,318 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:23:55,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:23:55,319 INFO L82 PathProgramCache]: Analyzing trace with hash -409380025, now seen corresponding path program 1 times [2021-08-26 01:23:55,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 01:23:55,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663723700] [2021-08-26 01:23:55,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:23:55,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 01:23:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 01:23:55,349 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 01:23:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 01:23:55,381 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-26 01:23:55,381 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 01:23:55,382 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 01:23:55,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 01:23:55,388 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 01:23:55,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 01:23:55 BoogieIcfgContainer [2021-08-26 01:23:55,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 01:23:55,410 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 01:23:55,411 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 01:23:55,411 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 01:23:55,411 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:23:55" (3/4) ... [2021-08-26 01:23:55,413 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-26 01:23:55,413 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 01:23:55,414 INFO L168 Benchmark]: Toolchain (without parser) took 1253.15 ms. Allocated memory was 60.8 MB in the beginning and 86.0 MB in the end (delta: 25.2 MB). Free memory was 41.2 MB in the beginning and 54.3 MB in the end (delta: -13.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2021-08-26 01:23:55,414 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 60.8 MB. Free memory is still 41.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:23:55,415 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.31 ms. Allocated memory is still 60.8 MB. Free memory was 40.8 MB in the beginning and 41.0 MB in the end (delta: -208.9 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-26 01:23:55,415 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.80 ms. Allocated memory is still 60.8 MB. Free memory was 40.8 MB in the beginning and 37.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 01:23:55,416 INFO L168 Benchmark]: Boogie Preprocessor took 47.13 ms. Allocated memory is still 60.8 MB. Free memory was 37.6 MB in the beginning and 34.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:23:55,416 INFO L168 Benchmark]: RCFGBuilder took 549.35 ms. Allocated memory was 60.8 MB in the beginning and 86.0 MB in the end (delta: 25.2 MB). Free memory was 34.8 MB in the beginning and 54.6 MB in the end (delta: -19.8 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.1 GB. [2021-08-26 01:23:55,417 INFO L168 Benchmark]: TraceAbstraction took 311.66 ms. Allocated memory is still 86.0 MB. Free memory was 54.1 MB in the beginning and 54.8 MB in the end (delta: -705.3 kB). Peak memory consumption was 803.4 kB. Max. memory is 16.1 GB. [2021-08-26 01:23:55,417 INFO L168 Benchmark]: Witness Printer took 2.53 ms. Allocated memory is still 86.0 MB. Free memory is still 54.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:23:55,419 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 60.8 MB. Free memory is still 41.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 282.31 ms. Allocated memory is still 60.8 MB. Free memory was 40.8 MB in the beginning and 41.0 MB in the end (delta: -208.9 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.80 ms. Allocated memory is still 60.8 MB. Free memory was 40.8 MB in the beginning and 37.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.13 ms. Allocated memory is still 60.8 MB. Free memory was 37.6 MB in the beginning and 34.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 549.35 ms. Allocated memory was 60.8 MB in the beginning and 86.0 MB in the end (delta: 25.2 MB). Free memory was 34.8 MB in the beginning and 54.6 MB in the end (delta: -19.8 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 311.66 ms. Allocated memory is still 86.0 MB. Free memory was 54.1 MB in the beginning and 54.8 MB in the end (delta: -705.3 kB). Peak memory consumption was 803.4 kB. Max. memory is 16.1 GB. * Witness Printer took 2.53 ms. Allocated memory is still 86.0 MB. Free memory is still 54.3 MB. 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: 231]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 134, overapproximation of bitwiseAnd at line 152, overapproximation of someBinaryArithmeticDOUBLEoperation at line 170, overapproximation of someBinaryDOUBLEComparisonOperation at line 215. Possible FailurePath: [L17] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L129-L142] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L223] double x = __VERIFIER_nondet_double(); [L225] COND TRUE x < -1.0 || x > 1.0 [L145] double z, p, q, r, w, s, c, df; [L146] __int32_t hx, ix; VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L148] ieee_double_shape_type gh_u; [L149] gh_u.value = (x) [L150] EXPR gh_u.parts.msw [L150] (hx) = gh_u.parts.msw [L152] ix = hx & 0x7fffffff VAL [one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L153] COND FALSE !(ix >= 0x3ff00000) VAL [one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L168] COND TRUE ix < 0x3fe00000 VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L169] COND TRUE ix <= 0x3c600000 [L170] return pio2_hi_acos + pio2_lo_acos; VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L227] double res = __ieee754_acos(x); [L215] return x != x; VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L230] COND TRUE !isnan_double(res) [L231] reach_error() VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 106 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 256.7ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 14.4ms, AutomataDifference: 31.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 152 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=106occurred 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: 14.7ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.9ms SsaConstructionTime, 40.8ms SatisfiabilityAnalysisTime, 31.3ms InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 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 01:23:55,447 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 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 01:23:57,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 01:23:57,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 01:23:57,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 01:23:57,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 01:23:57,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 01:23:57,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 01:23:57,791 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 01:23:57,792 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 01:23:57,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 01:23:57,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 01:23:57,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 01:23:57,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 01:23:57,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 01:23:57,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 01:23:57,811 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 01:23:57,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 01:23:57,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 01:23:57,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 01:23:57,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 01:23:57,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 01:23:57,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 01:23:57,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 01:23:57,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 01:23:57,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 01:23:57,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 01:23:57,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 01:23:57,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 01:23:57,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 01:23:57,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 01:23:57,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 01:23:57,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 01:23:57,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 01:23:57,841 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 01:23:57,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 01:23:57,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 01:23:57,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 01:23:57,843 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 01:23:57,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 01:23:57,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 01:23:57,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 01:23:57,845 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-26 01:23:57,880 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 01:23:57,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 01:23:57,881 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 01:23:57,881 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 01:23:57,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 01:23:57,882 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 01:23:57,882 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 01:23:57,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 01:23:57,882 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 01:23:57,882 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 01:23:57,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 01:23:57,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 01:23:57,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 01:23:57,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 01:23:57,883 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-26 01:23:57,883 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-26 01:23:57,883 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 01:23:57,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 01:23:57,883 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 01:23:57,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 01:23:57,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 01:23:57,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 01:23:57,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 01:23:57,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:23:57,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 01:23:57,884 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 01:23:57,884 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 01:23:57,884 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-26 01:23:57,884 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-26 01:23:57,884 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 01:23:57,884 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 01:23:57,884 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-26 01:23:57,884 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f0f01afc4ff6f43b4bc9d2fa2add6f57b41dad4 [2021-08-26 01:23:58,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 01:23:58,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 01:23:58,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 01:23:58,178 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 01:23:58,178 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 01:23:58,179 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0460.c [2021-08-26 01:23:58,218 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/333b2894a/a27421d6aa9a46348ee8aba7c9b3bb14/FLAGeeddf8f20 [2021-08-26 01:23:58,613 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 01:23:58,615 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0460.c [2021-08-26 01:23:58,623 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/333b2894a/a27421d6aa9a46348ee8aba7c9b3bb14/FLAGeeddf8f20 [2021-08-26 01:23:58,648 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/333b2894a/a27421d6aa9a46348ee8aba7c9b3bb14 [2021-08-26 01:23:58,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 01:23:58,652 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 01:23:58,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 01:23:58,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 01:23:58,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 01:23:58,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:23:58" (1/1) ... [2021-08-26 01:23:58,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a7a728c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:23:58, skipping insertion in model container [2021-08-26 01:23:58,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:23:58" (1/1) ... [2021-08-26 01:23:58,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 01:23:58,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 01:23:58,883 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_0460.c[5763,5776] [2021-08-26 01:23:58,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:23:58,900 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 01:23:58,967 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_0460.c[5763,5776] [2021-08-26 01:23:58,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:23:58,984 INFO L208 MainTranslator]: Completed translation [2021-08-26 01:23:58,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:23:58 WrapperNode [2021-08-26 01:23:58,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 01:23:58,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 01:23:58,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 01:23:58,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 01:23:58,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:23:58" (1/1) ... [2021-08-26 01:23:59,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:23:58" (1/1) ... [2021-08-26 01:23:59,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 01:23:59,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 01:23:59,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 01:23:59,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 01:23:59,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:23:58" (1/1) ... [2021-08-26 01:23:59,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:23:58" (1/1) ... [2021-08-26 01:23:59,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:23:58" (1/1) ... [2021-08-26 01:23:59,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:23:58" (1/1) ... [2021-08-26 01:23:59,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:23:58" (1/1) ... [2021-08-26 01:23:59,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:23:58" (1/1) ... [2021-08-26 01:23:59,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:23:58" (1/1) ... [2021-08-26 01:23:59,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 01:23:59,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 01:23:59,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 01:23:59,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 01:23:59,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:23:58" (1/1) ... [2021-08-26 01:23:59,132 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:23:59,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:23:59,151 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 01:23:59,158 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 01:23:59,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-08-26 01:23:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-08-26 01:23:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-26 01:23:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 01:23:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-26 01:23:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 01:23:59,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 01:23:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-26 01:23:59,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 01:24:23,190 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 01:24:23,192 INFO L299 CfgBuilder]: Removed 34 assume(true) statements. [2021-08-26 01:24:23,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:24:23 BoogieIcfgContainer [2021-08-26 01:24:23,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 01:24:23,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 01:24:23,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 01:24:23,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 01:24:23,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 01:23:58" (1/3) ... [2021-08-26 01:24:23,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b91dcce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:24:23, skipping insertion in model container [2021-08-26 01:24:23,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:23:58" (2/3) ... [2021-08-26 01:24:23,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b91dcce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:24:23, skipping insertion in model container [2021-08-26 01:24:23,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:24:23" (3/3) ... [2021-08-26 01:24:23,199 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0460.c [2021-08-26 01:24:23,207 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 01:24:23,207 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 01:24:23,235 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 01:24:23,239 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 01:24:23,239 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 01:24:23,249 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 104 states have (on average 1.6826923076923077) internal successors, (175), 105 states have internal predecessors, (175), 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 01:24:23,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-26 01:24:23,252 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:24:23,252 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:24:23,253 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:24:23,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:24:23,256 INFO L82 PathProgramCache]: Analyzing trace with hash 8448415, now seen corresponding path program 1 times [2021-08-26 01:24:23,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:24:23,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1716084776] [2021-08-26 01:24:23,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:24:23,264 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:24:23,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:24:23,291 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 01:24:23,357 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 01:24:23,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:24:23,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-26 01:24:23,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:24:24,388 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 01:24:24,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:24:24,746 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 01:24:24,746 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:24:24,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1716084776] [2021-08-26 01:24:24,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1716084776] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:24:24,747 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:24:24,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-26 01:24:24,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347550214] [2021-08-26 01:24:24,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 01:24:24,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:24:24,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 01:24:24,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:24:24,769 INFO L87 Difference]: Start difference. First operand has 106 states, 104 states have (on average 1.6826923076923077) internal successors, (175), 105 states have internal predecessors, (175), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 01:24:24,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:24:24,788 INFO L93 Difference]: Finished difference Result 209 states and 346 transitions. [2021-08-26 01:24:24,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 01:24:24,789 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2021-08-26 01:24:24,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:24:24,796 INFO L225 Difference]: With dead ends: 209 [2021-08-26 01:24:24,796 INFO L226 Difference]: Without dead ends: 102 [2021-08-26 01:24:24,798 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 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 01:24:24,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-08-26 01:24:24,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2021-08-26 01:24:24,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 1.4554455445544554) internal successors, (147), 101 states have internal predecessors, (147), 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 01:24:24,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 147 transitions. [2021-08-26 01:24:24,824 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 147 transitions. Word has length 12 [2021-08-26 01:24:24,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:24:24,824 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 147 transitions. [2021-08-26 01:24:24,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 01:24:24,825 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 147 transitions. [2021-08-26 01:24:24,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-26 01:24:24,825 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:24:24,825 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:24:24,850 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 01:24:25,046 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 01:24:25,046 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:24:25,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:24:25,047 INFO L82 PathProgramCache]: Analyzing trace with hash -409380025, now seen corresponding path program 1 times [2021-08-26 01:24:25,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:24:25,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118132092] [2021-08-26 01:24:25,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:24:25,048 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:24:25,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:24:25,051 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 01:24:25,054 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 01:24:25,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:24:25,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-26 01:24:25,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:24:31,183 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 01:24:31,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:24:38,043 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 01:24:38,044 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:24:38,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118132092] [2021-08-26 01:24:38,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [118132092] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:24:38,044 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:24:38,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-26 01:24:38,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577943027] [2021-08-26 01:24:38,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-26 01:24:38,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:24:38,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-26 01:24:38,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=37, Unknown=3, NotChecked=0, Total=56 [2021-08-26 01:24:38,047 INFO L87 Difference]: Start difference. First operand 102 states and 147 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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 01:24:42,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:24:42,282 INFO L93 Difference]: Finished difference Result 107 states and 151 transitions. [2021-08-26 01:24:42,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 01:24:42,308 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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 13 [2021-08-26 01:24:42,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:24:42,308 INFO L225 Difference]: With dead ends: 107 [2021-08-26 01:24:42,308 INFO L226 Difference]: Without dead ends: 16 [2021-08-26 01:24:42,309 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 10333.9ms TimeCoverageRelationStatistics Valid=31, Invalid=56, Unknown=3, NotChecked=0, Total=90 [2021-08-26 01:24:42,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-08-26 01:24:42,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-08-26 01:24:42,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 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 01:24:42,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-08-26 01:24:42,311 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 13 [2021-08-26 01:24:42,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:24:42,311 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-08-26 01:24:42,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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 01:24:42,312 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-08-26 01:24:42,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-08-26 01:24:42,312 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:24:42,312 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:24:42,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-26 01:24:42,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:24:42,531 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:24:42,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:24:42,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1384827201, now seen corresponding path program 1 times [2021-08-26 01:24:42,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:24:42,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [335214725] [2021-08-26 01:24:42,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:24:42,533 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:24:42,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:24:42,538 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:24:42,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-26 01:24:43,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:24:43,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-26 01:24:43,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:25:06,408 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 01:25:06,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:25:19,751 WARN L224 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-08-26 01:25:19,751 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:25:19,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [335214725] [2021-08-26 01:25:19,752 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-08-26 01:25:19,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1418204930] [2021-08-26 01:25:19,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:25:19,752 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-26 01:25:19,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-26 01:25:19,762 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-26 01:25:19,765 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 101 [2021-08-26 01:25:19,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-08-26 01:25:21,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:25:22,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-26 01:25:22,011 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@1b001bf2 [2021-08-26 01:25:22,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363379322] [2021-08-26 01:25:22,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:25:22,012 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 01:25:22,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:25:22,013 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 01:25:22,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-26 01:25:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:25:24,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-26 01:25:24,334 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@1b001bf2 [2021-08-26 01:25:24,334 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:25:24,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-08-26 01:25:24,334 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-08-26 01:25:24,334 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-08-26 01:25:24,337 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 01:25:24,358 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-08-26 01:25:24,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-26 01:25:24,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-26 01:25:24,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:25:24,965 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 01:25:24,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 01:25:24 BoogieIcfgContainer [2021-08-26 01:25:24,982 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 01:25:24,983 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 01:25:24,983 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 01:25:24,983 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 01:25:24,984 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:24:23" (3/4) ... [2021-08-26 01:25:24,987 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-26 01:25:24,987 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 01:25:24,990 INFO L168 Benchmark]: Toolchain (without parser) took 86335.68 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 31.1 MB in the beginning and 21.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. [2021-08-26 01:25:24,990 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 46.1 MB. Free memory was 28.6 MB in the beginning and 28.6 MB in the end (delta: 36.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:25:24,991 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.54 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 30.9 MB in the beginning and 36.7 MB in the end (delta: -5.8 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2021-08-26 01:25:24,995 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.34 ms. Allocated memory is still 56.6 MB. Free memory was 36.5 MB in the beginning and 33.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:25:24,999 INFO L168 Benchmark]: Boogie Preprocessor took 72.77 ms. Allocated memory is still 56.6 MB. Free memory was 33.7 MB in the beginning and 30.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:25:24,999 INFO L168 Benchmark]: RCFGBuilder took 24066.94 ms. Allocated memory is still 56.6 MB. Free memory was 30.7 MB in the beginning and 24.2 MB in the end (delta: 6.4 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2021-08-26 01:25:25,001 INFO L168 Benchmark]: TraceAbstraction took 61787.24 ms. Allocated memory is still 56.6 MB. Free memory was 23.7 MB in the beginning and 22.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.0 MB. Max. memory is 16.1 GB. [2021-08-26 01:25:25,002 INFO L168 Benchmark]: Witness Printer took 4.52 ms. Allocated memory is still 56.6 MB. Free memory is still 21.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:25:25,014 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 46.1 MB. Free memory was 28.6 MB in the beginning and 28.6 MB in the end (delta: 36.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 332.54 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 30.9 MB in the beginning and 36.7 MB in the end (delta: -5.8 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.34 ms. Allocated memory is still 56.6 MB. Free memory was 36.5 MB in the beginning and 33.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 72.77 ms. Allocated memory is still 56.6 MB. Free memory was 33.7 MB in the beginning and 30.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 24066.94 ms. Allocated memory is still 56.6 MB. Free memory was 30.7 MB in the beginning and 24.2 MB in the end (delta: 6.4 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 61787.24 ms. Allocated memory is still 56.6 MB. Free memory was 23.7 MB in the beginning and 22.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.52 ms. Allocated memory is still 56.6 MB. Free memory is still 21.8 MB. 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: 231]: 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: [L17] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L129-L142] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; [L223] double x = __VERIFIER_nondet_double(); [L225] COND TRUE x < -1.0 || x > 1.0 [L145] double z, p, q, r, w, s, c, df; [L146] __int32_t hx, ix; [L148] ieee_double_shape_type gh_u; [L149] gh_u.value = (x) [L150] EXPR gh_u.parts.msw [L150] (hx) = gh_u.parts.msw [L152] ix = hx & 0x7fffffff [L153] COND TRUE ix >= 0x3ff00000 [L154] __uint32_t lx; [L156] ieee_double_shape_type gl_u; [L157] gl_u.value = (x) [L158] EXPR gl_u.parts.lsw [L158] (lx) = gl_u.parts.lsw [L160] COND FALSE !(((ix - 0x3ff00000) | lx) == 0) [L166] return (x - x) / (x - x); [L227] double res = __ieee754_acos(x); [L215] return x != x; [L230] COND TRUE !isnan_double(res) [L231] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 106 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 61729.7ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 6.3ms, AutomataDifference: 4304.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 161 SDtfs, 63 SDslu, 10 SDs, 0 SdLazy, 13 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2672.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 10334.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 19.9ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 33.3ms SsaConstructionTime, 631.4ms SatisfiabilityAnalysisTime, 13641.6ms InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 46 ConstructedInterpolants, 5 QuantifiedInterpolants, 181 SizeOfPredicates, 9 NumberOfNonLiveVariables, 118 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...