./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0480.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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_0480.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 f90b1d640a2990a6a85e9cd8b829ad481f01a2281537af5797be61836c0e0f27 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 13:59:22,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 13:59:22,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 13:59:22,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 13:59:22,049 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 13:59:22,050 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 13:59:22,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 13:59:22,055 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 13:59:22,057 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 13:59:22,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 13:59:22,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 13:59:22,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 13:59:22,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 13:59:22,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 13:59:22,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 13:59:22,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 13:59:22,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 13:59:22,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 13:59:22,076 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 13:59:22,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 13:59:22,084 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 13:59:22,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 13:59:22,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 13:59:22,086 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 13:59:22,087 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 13:59:22,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 13:59:22,092 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 13:59:22,092 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 13:59:22,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 13:59:22,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 13:59:22,095 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 13:59:22,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 13:59:22,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 13:59:22,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 13:59:22,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 13:59:22,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 13:59:22,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 13:59:22,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 13:59:22,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 13:59:22,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 13:59:22,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 13:59:22,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 13:59:22,103 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 13:59:22,122 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 13:59:22,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 13:59:22,123 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 13:59:22,123 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 13:59:22,124 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 13:59:22,124 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 13:59:22,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 13:59:22,124 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 13:59:22,125 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 13:59:22,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 13:59:22,126 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 13:59:22,126 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 13:59:22,126 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 13:59:22,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 13:59:22,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 13:59:22,127 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 13:59:22,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 13:59:22,127 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 13:59:22,127 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 13:59:22,127 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 13:59:22,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 13:59:22,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 13:59:22,128 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 13:59:22,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 13:59:22,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:59:22,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 13:59:22,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 13:59:22,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 13:59:22,129 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 13:59:22,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 13:59:22,130 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 13:59:22,130 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 13:59:22,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 13:59:22,130 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f90b1d640a2990a6a85e9cd8b829ad481f01a2281537af5797be61836c0e0f27 [2022-07-19 13:59:22,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 13:59:22,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 13:59:22,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 13:59:22,367 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 13:59:22,375 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 13:59:22,376 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0480.c [2022-07-19 13:59:22,429 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d30a9627/908e5c76c43d4530849c6bb75eefb581/FLAGe871ad43a [2022-07-19 13:59:22,827 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 13:59:22,828 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0480.c [2022-07-19 13:59:22,835 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d30a9627/908e5c76c43d4530849c6bb75eefb581/FLAGe871ad43a [2022-07-19 13:59:22,846 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d30a9627/908e5c76c43d4530849c6bb75eefb581 [2022-07-19 13:59:22,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 13:59:22,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 13:59:22,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 13:59:22,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 13:59:22,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 13:59:22,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:59:22" (1/1) ... [2022-07-19 13:59:22,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cf7318f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:59:22, skipping insertion in model container [2022-07-19 13:59:22,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:59:22" (1/1) ... [2022-07-19 13:59:22,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 13:59:22,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 13:59:23,055 WARN L230 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_0480.c[5882,5895] [2022-07-19 13:59:23,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:59:23,063 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 13:59:23,102 WARN L230 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_0480.c[5882,5895] [2022-07-19 13:59:23,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:59:23,114 INFO L208 MainTranslator]: Completed translation [2022-07-19 13:59:23,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:59:23 WrapperNode [2022-07-19 13:59:23,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 13:59:23,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 13:59:23,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 13:59:23,116 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 13:59:23,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:59:23" (1/1) ... [2022-07-19 13:59:23,140 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:59:23" (1/1) ... [2022-07-19 13:59:23,162 INFO L137 Inliner]: procedures = 17, calls = 38, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 161 [2022-07-19 13:59:23,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 13:59:23,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 13:59:23,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 13:59:23,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 13:59:23,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:59:23" (1/1) ... [2022-07-19 13:59:23,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:59:23" (1/1) ... [2022-07-19 13:59:23,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:59:23" (1/1) ... [2022-07-19 13:59:23,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:59:23" (1/1) ... [2022-07-19 13:59:23,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:59:23" (1/1) ... [2022-07-19 13:59:23,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:59:23" (1/1) ... [2022-07-19 13:59:23,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:59:23" (1/1) ... [2022-07-19 13:59:23,215 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 13:59:23,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 13:59:23,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 13:59:23,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 13:59:23,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:59:23" (1/1) ... [2022-07-19 13:59:23,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:59:23,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:59:23,250 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) [2022-07-19 13:59:23,266 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 [2022-07-19 13:59:23,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 13:59:23,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 13:59:23,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 13:59:23,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-19 13:59:23,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 13:59:23,293 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2022-07-19 13:59:23,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2022-07-19 13:59:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-19 13:59:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 13:59:23,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 13:59:23,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 13:59:23,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 13:59:23,419 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 13:59:23,421 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 13:59:23,853 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 13:59:23,859 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 13:59:23,859 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2022-07-19 13:59:23,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:59:23 BoogieIcfgContainer [2022-07-19 13:59:23,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 13:59:23,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 13:59:23,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 13:59:23,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 13:59:23,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 01:59:22" (1/3) ... [2022-07-19 13:59:23,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6050ff6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:59:23, skipping insertion in model container [2022-07-19 13:59:23,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:59:23" (2/3) ... [2022-07-19 13:59:23,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6050ff6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:59:23, skipping insertion in model container [2022-07-19 13:59:23,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:59:23" (3/3) ... [2022-07-19 13:59:23,868 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0480.c [2022-07-19 13:59:23,881 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 13:59:23,881 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 13:59:23,945 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 13:59:23,955 INFO L357 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, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@77ce152e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6259d69e [2022-07-19 13:59:23,955 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 13:59:23,961 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 76 states have (on average 1.6973684210526316) internal successors, (129), 77 states have internal predecessors, (129), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 13:59:23,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-19 13:59:23,969 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:59:23,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:59:23,970 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:59:23,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:59:23,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1035770794, now seen corresponding path program 1 times [2022-07-19 13:59:23,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:59:23,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261331926] [2022-07-19 13:59:23,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:59:23,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:59:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:59:24,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:59:24,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 13:59:24,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261331926] [2022-07-19 13:59:24,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261331926] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:59:24,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:59:24,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 13:59:24,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600614595] [2022-07-19 13:59:24,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:59:24,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 13:59:24,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 13:59:24,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 13:59:24,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 13:59:24,144 INFO L87 Difference]: Start difference. First operand has 81 states, 76 states have (on average 1.6973684210526316) internal successors, (129), 77 states have internal predecessors, (129), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 13:59:24,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:59:24,179 INFO L93 Difference]: Finished difference Result 160 states and 266 transitions. [2022-07-19 13:59:24,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 13:59:24,182 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-19 13:59:24,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:59:24,191 INFO L225 Difference]: With dead ends: 160 [2022-07-19 13:59:24,191 INFO L226 Difference]: Without dead ends: 78 [2022-07-19 13:59:24,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 13:59:24,198 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 13:59:24,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 13:59:24,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-07-19 13:59:24,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-07-19 13:59:24,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 74 states have (on average 1.4054054054054055) internal successors, (104), 74 states have internal predecessors, (104), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 13:59:24,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 108 transitions. [2022-07-19 13:59:24,240 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 108 transitions. Word has length 11 [2022-07-19 13:59:24,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:59:24,240 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 108 transitions. [2022-07-19 13:59:24,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 13:59:24,241 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 108 transitions. [2022-07-19 13:59:24,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-19 13:59:24,241 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:59:24,242 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:59:24,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 13:59:24,242 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:59:24,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:59:24,242 INFO L85 PathProgramCache]: Analyzing trace with hash -498192564, now seen corresponding path program 1 times [2022-07-19 13:59:24,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:59:24,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017146528] [2022-07-19 13:59:24,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:59:24,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:59:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:59:24,279 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 13:59:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:59:24,339 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 13:59:24,339 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 13:59:24,341 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 13:59:24,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 13:59:24,346 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-19 13:59:24,348 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 13:59:24,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 01:59:24 BoogieIcfgContainer [2022-07-19 13:59:24,378 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 13:59:24,379 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 13:59:24,379 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 13:59:24,379 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 13:59:24,380 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:59:23" (3/4) ... [2022-07-19 13:59:24,382 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-19 13:59:24,382 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 13:59:24,383 INFO L158 Benchmark]: Toolchain (without parser) took 1533.75ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 81.6MB in the beginning and 71.1MB in the end (delta: 10.5MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2022-07-19 13:59:24,383 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 111.1MB. Free memory is still 65.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:59:24,383 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.16ms. Allocated memory is still 111.1MB. Free memory was 81.6MB in the beginning and 80.8MB in the end (delta: 758.9kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 13:59:24,384 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.50ms. Allocated memory is still 111.1MB. Free memory was 80.8MB in the beginning and 78.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:59:24,384 INFO L158 Benchmark]: Boogie Preprocessor took 51.83ms. Allocated memory is still 111.1MB. Free memory was 78.8MB in the beginning and 76.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-19 13:59:24,385 INFO L158 Benchmark]: RCFGBuilder took 645.79ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 76.2MB in the beginning and 101.1MB in the end (delta: -25.0MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2022-07-19 13:59:24,386 INFO L158 Benchmark]: TraceAbstraction took 515.46ms. Allocated memory is still 134.2MB. Free memory was 100.5MB in the beginning and 71.8MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-07-19 13:59:24,386 INFO L158 Benchmark]: Witness Printer took 3.03ms. Allocated memory is still 134.2MB. Free memory was 71.8MB in the beginning and 71.1MB in the end (delta: 603.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:59:24,394 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 111.1MB. Free memory is still 65.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 265.16ms. Allocated memory is still 111.1MB. Free memory was 81.6MB in the beginning and 80.8MB in the end (delta: 758.9kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.50ms. Allocated memory is still 111.1MB. Free memory was 80.8MB in the beginning and 78.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.83ms. Allocated memory is still 111.1MB. Free memory was 78.8MB in the beginning and 76.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 645.79ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 76.2MB in the beginning and 101.1MB in the end (delta: -25.0MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. * TraceAbstraction took 515.46ms. Allocated memory is still 134.2MB. Free memory was 100.5MB in the beginning and 71.8MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 3.03ms. Allocated memory is still 134.2MB. Free memory was 71.8MB in the beginning and 71.1MB in the end (delta: 603.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 239]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 238, overapproximation of someUnaryDOUBLEoperation at line 147, overapproximation of someBinaryArithmeticDOUBLEoperation at line 183. Possible FailurePath: [L30] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L142-L155] 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=785398163397448279/250000000000000000, 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] [L234] double x = 1.0; [L235] CALL, EXPR __ieee754_acos(x) [L158] double z, p, q, r, w, s, c, df; [L159] __int32_t hx, ix; VAL [\old(x)=1, 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, x=1] [L161] ieee_double_shape_type gh_u; [L162] gh_u.value = (x) [L163] EXPR gh_u.parts.msw [L163] (hx) = gh_u.parts.msw [L165] ix = hx & 0x7fffffff VAL [\old(x)=1, hx=0, ix=0, 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, x=1] [L166] COND FALSE !(ix >= 0x3ff00000) VAL [\old(x)=1, hx=0, ix=0, 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, x=1] [L181] COND TRUE ix < 0x3fe00000 VAL [\old(x)=1, hx=0, ix=0, 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, x=1] [L182] COND TRUE ix <= 0x3c600000 [L183] return pio2_hi_acos + pio2_lo_acos; VAL [\old(x)=1, hx=0, ix=0, 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, x=1] [L235] RET, EXPR __ieee754_acos(x) [L235] double res = __ieee754_acos(x); [L238] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, 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, res=4294967297, res == 0.0 && __signbit_double(res) == 0=0, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1] [L238] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L239] 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, res=4294967297, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 111 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 111 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-19 13:59:24,425 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_0480.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 f90b1d640a2990a6a85e9cd8b829ad481f01a2281537af5797be61836c0e0f27 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 13:59:26,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 13:59:26,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 13:59:26,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 13:59:26,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 13:59:26,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 13:59:26,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 13:59:26,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 13:59:26,288 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 13:59:26,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 13:59:26,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 13:59:26,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 13:59:26,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 13:59:26,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 13:59:26,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 13:59:26,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 13:59:26,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 13:59:26,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 13:59:26,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 13:59:26,312 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 13:59:26,313 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 13:59:26,313 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 13:59:26,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 13:59:26,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 13:59:26,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 13:59:26,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 13:59:26,323 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 13:59:26,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 13:59:26,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 13:59:26,325 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 13:59:26,326 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 13:59:26,326 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 13:59:26,327 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 13:59:26,328 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 13:59:26,329 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 13:59:26,330 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 13:59:26,330 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 13:59:26,331 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 13:59:26,331 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 13:59:26,331 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 13:59:26,332 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 13:59:26,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 13:59:26,340 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-19 13:59:26,370 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 13:59:26,371 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 13:59:26,371 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 13:59:26,371 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 13:59:26,372 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 13:59:26,372 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 13:59:26,373 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 13:59:26,373 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 13:59:26,373 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 13:59:26,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 13:59:26,374 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 13:59:26,374 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 13:59:26,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 13:59:26,374 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 13:59:26,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 13:59:26,375 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 13:59:26,375 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 13:59:26,375 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 13:59:26,376 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 13:59:26,376 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 13:59:26,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 13:59:26,376 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 13:59:26,376 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 13:59:26,376 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 13:59:26,377 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 13:59:26,377 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 13:59:26,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:59:26,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 13:59:26,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 13:59:26,378 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 13:59:26,378 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 13:59:26,378 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 13:59:26,378 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 13:59:26,378 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 13:59:26,379 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 13:59:26,379 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 13:59:26,379 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f90b1d640a2990a6a85e9cd8b829ad481f01a2281537af5797be61836c0e0f27 [2022-07-19 13:59:26,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 13:59:26,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 13:59:26,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 13:59:26,693 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 13:59:26,695 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 13:59:26,696 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0480.c [2022-07-19 13:59:26,751 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71f439462/5303d9ae6da5449f81349f8847e02b78/FLAG5c68681fa [2022-07-19 13:59:27,177 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 13:59:27,186 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0480.c [2022-07-19 13:59:27,193 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71f439462/5303d9ae6da5449f81349f8847e02b78/FLAG5c68681fa [2022-07-19 13:59:27,557 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71f439462/5303d9ae6da5449f81349f8847e02b78 [2022-07-19 13:59:27,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 13:59:27,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 13:59:27,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 13:59:27,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 13:59:27,565 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 13:59:27,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:59:27" (1/1) ... [2022-07-19 13:59:27,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32736ab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:59:27, skipping insertion in model container [2022-07-19 13:59:27,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:59:27" (1/1) ... [2022-07-19 13:59:27,572 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 13:59:27,589 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 13:59:27,816 WARN L230 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_0480.c[5882,5895] [2022-07-19 13:59:27,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:59:27,828 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 13:59:27,895 WARN L230 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_0480.c[5882,5895] [2022-07-19 13:59:27,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:59:27,922 INFO L208 MainTranslator]: Completed translation [2022-07-19 13:59:27,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:59:27 WrapperNode [2022-07-19 13:59:27,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 13:59:27,928 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 13:59:27,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 13:59:27,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 13:59:27,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:59:27" (1/1) ... [2022-07-19 13:59:27,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:59:27" (1/1) ... [2022-07-19 13:59:27,989 INFO L137 Inliner]: procedures = 20, calls = 38, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 149 [2022-07-19 13:59:27,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 13:59:27,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 13:59:27,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 13:59:27,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 13:59:27,998 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:59:27" (1/1) ... [2022-07-19 13:59:27,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:59:27" (1/1) ... [2022-07-19 13:59:28,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:59:27" (1/1) ... [2022-07-19 13:59:28,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:59:27" (1/1) ... [2022-07-19 13:59:28,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:59:27" (1/1) ... [2022-07-19 13:59:28,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:59:27" (1/1) ... [2022-07-19 13:59:28,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:59:27" (1/1) ... [2022-07-19 13:59:28,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 13:59:28,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 13:59:28,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 13:59:28,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 13:59:28,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:59:27" (1/1) ... [2022-07-19 13:59:28,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:59:28,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:59:28,091 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) [2022-07-19 13:59:28,119 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 [2022-07-19 13:59:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 13:59:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-07-19 13:59:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-07-19 13:59:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 13:59:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 13:59:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2022-07-19 13:59:28,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2022-07-19 13:59:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-19 13:59:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 13:59:28,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 13:59:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-19 13:59:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 13:59:28,253 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 13:59:28,256 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 13:59:46,437 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 13:59:46,443 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 13:59:46,444 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2022-07-19 13:59:46,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:59:46 BoogieIcfgContainer [2022-07-19 13:59:46,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 13:59:46,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 13:59:46,448 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 13:59:46,450 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 13:59:46,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 01:59:27" (1/3) ... [2022-07-19 13:59:46,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62237314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:59:46, skipping insertion in model container [2022-07-19 13:59:46,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:59:27" (2/3) ... [2022-07-19 13:59:46,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62237314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:59:46, skipping insertion in model container [2022-07-19 13:59:46,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:59:46" (3/3) ... [2022-07-19 13:59:46,453 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0480.c [2022-07-19 13:59:46,464 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 13:59:46,464 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 13:59:46,511 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 13:59:46,518 INFO L357 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, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@58e1e718, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7613bf43 [2022-07-19 13:59:46,519 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 13:59:46,523 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 69 states have (on average 1.6521739130434783) internal successors, (114), 70 states have internal predecessors, (114), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 13:59:46,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-19 13:59:46,537 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:59:46,538 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:59:46,538 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:59:46,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:59:46,543 INFO L85 PathProgramCache]: Analyzing trace with hash 807618303, now seen corresponding path program 1 times [2022-07-19 13:59:46,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:59:46,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [58092696] [2022-07-19 13:59:46,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:59:46,554 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:59:46,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:59:46,557 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) [2022-07-19 13:59:46,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-19 13:59:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:59:47,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-19 13:59:47,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:59:47,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:59:47,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 13:59:47,348 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 13:59:47,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [58092696] [2022-07-19 13:59:47,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [58092696] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:59:47,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:59:47,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 13:59:47,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360576640] [2022-07-19 13:59:47,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:59:47,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 13:59:47,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 13:59:47,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 13:59:47,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 13:59:47,380 INFO L87 Difference]: Start difference. First operand has 74 states, 69 states have (on average 1.6521739130434783) internal successors, (114), 70 states have internal predecessors, (114), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 13:59:47,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:59:47,400 INFO L93 Difference]: Finished difference Result 146 states and 236 transitions. [2022-07-19 13:59:47,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 13:59:47,402 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-19 13:59:47,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:59:47,408 INFO L225 Difference]: With dead ends: 146 [2022-07-19 13:59:47,408 INFO L226 Difference]: Without dead ends: 71 [2022-07-19 13:59:47,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 13:59:47,413 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 13:59:47,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 13:59:47,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-07-19 13:59:47,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-07-19 13:59:47,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 67 states have (on average 1.4029850746268657) internal successors, (94), 67 states have internal predecessors, (94), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-19 13:59:47,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 98 transitions. [2022-07-19 13:59:47,445 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 98 transitions. Word has length 11 [2022-07-19 13:59:47,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:59:47,446 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 98 transitions. [2022-07-19 13:59:47,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 13:59:47,446 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 98 transitions. [2022-07-19 13:59:47,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-19 13:59:47,447 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:59:47,447 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:59:47,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-19 13:59:47,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 13:59:47,664 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:59:47,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:59:47,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1074834118, now seen corresponding path program 1 times [2022-07-19 13:59:47,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:59:47,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2137881438] [2022-07-19 13:59:47,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:59:47,666 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:59:47,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:59:47,668 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) [2022-07-19 13:59:47,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-19 13:59:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:59:47,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-19 13:59:47,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:59:49,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:59:49,604 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 13:59:49,604 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 13:59:49,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2137881438] [2022-07-19 13:59:49,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2137881438] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:59:49,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:59:49,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 13:59:49,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359976433] [2022-07-19 13:59:49,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:59:49,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 13:59:49,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 13:59:49,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 13:59:49,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 13:59:49,608 INFO L87 Difference]: Start difference. First operand 71 states and 98 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2022-07-19 13:59:49,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:59:49,616 INFO L93 Difference]: Finished difference Result 80 states and 107 transitions. [2022-07-19 13:59:49,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 13:59:49,617 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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 [2022-07-19 13:59:49,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:59:49,618 INFO L225 Difference]: With dead ends: 80 [2022-07-19 13:59:49,618 INFO L226 Difference]: Without dead ends: 19 [2022-07-19 13:59:49,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 13:59:49,621 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 13:59:49,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 11 Unchecked, 0.0s Time] [2022-07-19 13:59:49,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-19 13:59:49,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-19 13:59:49,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 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) [2022-07-19 13:59:49,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-07-19 13:59:49,625 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 12 [2022-07-19 13:59:49,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:59:49,627 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-07-19 13:59:49,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2022-07-19 13:59:49,627 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-07-19 13:59:49,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-19 13:59:49,628 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:59:49,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:59:49,643 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-19 13:59:49,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 13:59:49,829 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:59:49,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:59:49,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1734297343, now seen corresponding path program 1 times [2022-07-19 13:59:49,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:59:49,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [555972695] [2022-07-19 13:59:49,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:59:49,831 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:59:49,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:59:49,832 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) [2022-07-19 13:59:49,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-19 13:59:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:59:50,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-19 13:59:50,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:59:51,131 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 16 [2022-07-19 13:59:53,811 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2022-07-19 13:59:54,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:59:54,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 13:59:54,872 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 13:59:54,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [555972695] [2022-07-19 13:59:54,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [555972695] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:59:54,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:59:54,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 13:59:54,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976797999] [2022-07-19 13:59:54,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:59:54,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 13:59:54,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 13:59:54,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 13:59:54,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-19 13:59:54,875 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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) [2022-07-19 13:59:54,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:59:54,880 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2022-07-19 13:59:54,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 13:59:54,880 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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 [2022-07-19 13:59:54,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:59:54,884 INFO L225 Difference]: With dead ends: 28 [2022-07-19 13:59:54,884 INFO L226 Difference]: Without dead ends: 19 [2022-07-19 13:59:54,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-19 13:59:54,885 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 1 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 13:59:54,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 60 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 14 Unchecked, 0.0s Time] [2022-07-19 13:59:54,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-19 13:59:54,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-19 13:59:54,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 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) [2022-07-19 13:59:54,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-07-19 13:59:54,892 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 13 [2022-07-19 13:59:54,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:59:54,892 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-07-19 13:59:54,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 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) [2022-07-19 13:59:54,893 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-07-19 13:59:54,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-19 13:59:54,894 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:59:54,895 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:59:54,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-19 13:59:55,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 13:59:55,121 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:59:55,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:59:55,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1833412902, now seen corresponding path program 1 times [2022-07-19 13:59:55,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:59:55,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982742097] [2022-07-19 13:59:55,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:59:55,123 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:59:55,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:59:55,125 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 13:59:55,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-19 13:59:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:59:55,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 13:59:55,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:59:55,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:59:55,838 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 13:59:55,838 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 13:59:55,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [982742097] [2022-07-19 13:59:55,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [982742097] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:59:55,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:59:55,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 13:59:55,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486735991] [2022-07-19 13:59:55,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:59:55,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 13:59:55,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 13:59:55,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 13:59:55,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 13:59:55,840 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-07-19 13:59:57,114 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 13:59:57,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:59:57,877 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2022-07-19 13:59:57,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 13:59:57,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2022-07-19 13:59:57,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:59:57,878 INFO L225 Difference]: With dead ends: 31 [2022-07-19 13:59:57,878 INFO L226 Difference]: Without dead ends: 28 [2022-07-19 13:59:57,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 13:59:57,880 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 15 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-19 13:59:57,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 48 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-19 13:59:57,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-07-19 13:59:57,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 21. [2022-07-19 13:59:57,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 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) [2022-07-19 13:59:57,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2022-07-19 13:59:57,885 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 14 [2022-07-19 13:59:57,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:59:57,885 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2022-07-19 13:59:57,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-07-19 13:59:57,886 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-07-19 13:59:57,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-19 13:59:57,886 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:59:57,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 13:59:57,902 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-19 13:59:58,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 13:59:58,100 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:59:58,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:59:58,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1835259944, now seen corresponding path program 1 times [2022-07-19 13:59:58,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:59:58,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124713436] [2022-07-19 13:59:58,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:59:58,101 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:59:58,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:59:58,103 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 13:59:58,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-19 13:59:58,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:59:58,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-19 13:59:58,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:00:00,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:00:00,161 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:00:00,162 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:00:00,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1124713436] [2022-07-19 14:00:00,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1124713436] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:00:00,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:00:00,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 14:00:00,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349828797] [2022-07-19 14:00:00,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:00:00,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 14:00:00,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:00:00,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 14:00:00,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 14:00:00,163 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-07-19 14:00:00,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:00:00,166 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2022-07-19 14:00:00,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 14:00:00,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2022-07-19 14:00:00,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:00:00,167 INFO L225 Difference]: With dead ends: 28 [2022-07-19 14:00:00,167 INFO L226 Difference]: Without dead ends: 19 [2022-07-19 14:00:00,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 14:00:00,168 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:00:00,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 5 Unchecked, 0.0s Time] [2022-07-19 14:00:00,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-19 14:00:00,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-19 14:00:00,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0) internal successors, (18), 18 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) [2022-07-19 14:00:00,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2022-07-19 14:00:00,171 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 14 [2022-07-19 14:00:00,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:00:00,171 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2022-07-19 14:00:00,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-07-19 14:00:00,171 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2022-07-19 14:00:00,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-19 14:00:00,172 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:00:00,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:00:00,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-19 14:00:00,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:00:00,372 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:00:00,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:00:00,373 INFO L85 PathProgramCache]: Analyzing trace with hash 550496059, now seen corresponding path program 1 times [2022-07-19 14:00:00,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:00:00,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074704669] [2022-07-19 14:00:00,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:00:00,374 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:00:00,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:00:00,376 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 14:00:00,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-19 14:00:00,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:00:00,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-19 14:00:00,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:00:04,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:00:04,305 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:00:04,305 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:00:04,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074704669] [2022-07-19 14:00:04,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074704669] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:00:04,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:00:04,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 14:00:04,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749950753] [2022-07-19 14:00:04,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:00:04,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 14:00:04,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:00:04,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 14:00:04,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-19 14:00:04,306 INFO L87 Difference]: Start difference. First operand 19 states and 18 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) [2022-07-19 14:00:07,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:00:07,438 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2022-07-19 14:00:07,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 14:00:07,438 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 18 [2022-07-19 14:00:07,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:00:07,438 INFO L225 Difference]: With dead ends: 19 [2022-07-19 14:00:07,438 INFO L226 Difference]: Without dead ends: 0 [2022-07-19 14:00:07,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-07-19 14:00:07,440 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 13 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-19 14:00:07,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 68 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 4 Unchecked, 0.7s Time] [2022-07-19 14:00:07,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-19 14:00:07,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-19 14:00:07,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-07-19 14:00:07,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-19 14:00:07,441 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2022-07-19 14:00:07,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:00:07,441 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-19 14:00:07,441 INFO L496 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) [2022-07-19 14:00:07,441 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-19 14:00:07,441 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-19 14:00:07,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 14:00:07,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-19 14:00:07,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:00:07,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-19 14:00:09,276 INFO L902 garLoopResultBuilder]: At program point __ieee754_sqrtENTRY(lines 32 140) the Hoare annotation is: true [2022-07-19 14:00:09,276 INFO L899 garLoopResultBuilder]: For program point __ieee754_sqrtFINAL(lines 32 140) no Hoare annotation was computed. [2022-07-19 14:00:09,276 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 53) no Hoare annotation was computed. [2022-07-19 14:00:09,278 INFO L899 garLoopResultBuilder]: For program point L103(lines 103 104) no Hoare annotation was computed. [2022-07-19 14:00:09,278 INFO L899 garLoopResultBuilder]: For program point L103-2(lines 103 104) no Hoare annotation was computed. [2022-07-19 14:00:09,278 INFO L902 garLoopResultBuilder]: At program point L95-2(lines 95 111) the Hoare annotation is: true [2022-07-19 14:00:09,278 INFO L899 garLoopResultBuilder]: For program point L95-3(lines 32 140) no Hoare annotation was computed. [2022-07-19 14:00:09,278 INFO L899 garLoopResultBuilder]: For program point L120(lines 120 125) no Hoare annotation was computed. [2022-07-19 14:00:09,278 INFO L899 garLoopResultBuilder]: For program point L71(lines 71 74) no Hoare annotation was computed. [2022-07-19 14:00:09,278 INFO L899 garLoopResultBuilder]: For program point L38-1(lines 38 43) no Hoare annotation was computed. [2022-07-19 14:00:09,278 INFO L899 garLoopResultBuilder]: For program point L71-2(lines 71 74) no Hoare annotation was computed. [2022-07-19 14:00:09,278 INFO L902 garLoopResultBuilder]: At program point L38-2(lines 38 43) the Hoare annotation is: true [2022-07-19 14:00:09,278 INFO L899 garLoopResultBuilder]: For program point L38-3(lines 32 140) no Hoare annotation was computed. [2022-07-19 14:00:09,278 INFO L899 garLoopResultBuilder]: For program point L63-2(lines 63 64) no Hoare annotation was computed. [2022-07-19 14:00:09,278 INFO L902 garLoopResultBuilder]: At program point L63-3(lines 63 64) the Hoare annotation is: true [2022-07-19 14:00:09,279 INFO L899 garLoopResultBuilder]: For program point L63-4(lines 63 64) no Hoare annotation was computed. [2022-07-19 14:00:09,279 INFO L899 garLoopResultBuilder]: For program point L121(lines 121 122) no Hoare annotation was computed. [2022-07-19 14:00:09,279 INFO L899 garLoopResultBuilder]: For program point L121-2(lines 121 122) no Hoare annotation was computed. [2022-07-19 14:00:09,279 INFO L899 garLoopResultBuilder]: For program point L113(lines 113 127) no Hoare annotation was computed. [2022-07-19 14:00:09,279 INFO L899 garLoopResultBuilder]: For program point L130(lines 130 131) no Hoare annotation was computed. [2022-07-19 14:00:09,279 INFO L899 garLoopResultBuilder]: For program point L130-2(lines 130 131) no Hoare annotation was computed. [2022-07-19 14:00:09,279 INFO L899 garLoopResultBuilder]: For program point L98(lines 98 107) no Hoare annotation was computed. [2022-07-19 14:00:09,279 INFO L899 garLoopResultBuilder]: For program point L98-2(lines 98 107) no Hoare annotation was computed. [2022-07-19 14:00:09,279 INFO L899 garLoopResultBuilder]: For program point __ieee754_sqrtEXIT(lines 32 140) no Hoare annotation was computed. [2022-07-19 14:00:09,280 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 68) no Hoare annotation was computed. [2022-07-19 14:00:09,280 INFO L899 garLoopResultBuilder]: For program point L57-2(lines 57 68) no Hoare annotation was computed. [2022-07-19 14:00:09,280 INFO L899 garLoopResultBuilder]: For program point L115(lines 115 126) no Hoare annotation was computed. [2022-07-19 14:00:09,280 INFO L899 garLoopResultBuilder]: For program point L49(lines 49 54) no Hoare annotation was computed. [2022-07-19 14:00:09,280 INFO L902 garLoopResultBuilder]: At program point L82-2(lines 82 92) the Hoare annotation is: true [2022-07-19 14:00:09,280 INFO L899 garLoopResultBuilder]: For program point L49-2(lines 49 54) no Hoare annotation was computed. [2022-07-19 14:00:09,280 INFO L899 garLoopResultBuilder]: For program point L82-3(lines 82 92) no Hoare annotation was computed. [2022-07-19 14:00:09,281 INFO L902 garLoopResultBuilder]: At program point L58-2(lines 58 62) the Hoare annotation is: true [2022-07-19 14:00:09,281 INFO L899 garLoopResultBuilder]: For program point L58-3(lines 58 62) no Hoare annotation was computed. [2022-07-19 14:00:09,281 INFO L899 garLoopResultBuilder]: For program point L50(lines 50 53) no Hoare annotation was computed. [2022-07-19 14:00:09,281 INFO L899 garLoopResultBuilder]: For program point L100(lines 100 101) no Hoare annotation was computed. [2022-07-19 14:00:09,281 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 133 138) no Hoare annotation was computed. [2022-07-19 14:00:09,281 INFO L902 garLoopResultBuilder]: At program point L133-2(lines 133 138) the Hoare annotation is: true [2022-07-19 14:00:09,281 INFO L899 garLoopResultBuilder]: For program point L100-2(lines 100 101) no Hoare annotation was computed. [2022-07-19 14:00:09,282 INFO L899 garLoopResultBuilder]: For program point L133-3(lines 133 138) no Hoare annotation was computed. [2022-07-19 14:00:09,282 INFO L899 garLoopResultBuilder]: For program point L117(lines 117 125) no Hoare annotation was computed. [2022-07-19 14:00:09,282 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 88) no Hoare annotation was computed. [2022-07-19 14:00:09,282 INFO L899 garLoopResultBuilder]: For program point L84-2(lines 84 88) no Hoare annotation was computed. [2022-07-19 14:00:09,282 INFO L895 garLoopResultBuilder]: At program point L27(lines 18 28) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short16#1| (= (_ bv0 32) |ULTIMATE.start___signbit_double_#res#1|)) [2022-07-19 14:00:09,282 INFO L899 garLoopResultBuilder]: For program point L209-1(lines 209 214) no Hoare annotation was computed. [2022-07-19 14:00:09,282 INFO L895 garLoopResultBuilder]: At program point L209-2(lines 209 214) the Hoare annotation is: false [2022-07-19 14:00:09,283 INFO L899 garLoopResultBuilder]: For program point L209-3(lines 209 214) no Hoare annotation was computed. [2022-07-19 14:00:09,283 INFO L899 garLoopResultBuilder]: For program point L238(line 238) no Hoare annotation was computed. [2022-07-19 14:00:09,283 INFO L899 garLoopResultBuilder]: For program point L238-2(lines 238 241) no Hoare annotation was computed. [2022-07-19 14:00:09,283 INFO L895 garLoopResultBuilder]: At program point L201(line 201) the Hoare annotation is: false [2022-07-19 14:00:09,283 INFO L899 garLoopResultBuilder]: For program point L201-1(line 201) no Hoare annotation was computed. [2022-07-19 14:00:09,283 INFO L899 garLoopResultBuilder]: For program point L168-1(lines 168 172) no Hoare annotation was computed. [2022-07-19 14:00:09,284 INFO L895 garLoopResultBuilder]: At program point L168-2(lines 168 172) the Hoare annotation is: (and (exists ((|v_skolemized_q#valueAsBitvector_15| (_ BitVec 64)) (|v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8|) (_ bv4 32)))) (and (= (bvand (_ bv2147483647 32) .cse0) |ULTIMATE.start___ieee754_acos_~ix~0#1|) (= |ULTIMATE.start___ieee754_acos_~x#1| (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_15|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_15|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_15|))) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_15|) .cse0)))) (exists ((|v_skolemized_q#valueAsBitvector_21| (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= |ULTIMATE.start___ieee754_acos_~hx~0#1| ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_21|)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_21|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_21|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_21|)) ((_ to_fp 11 53) currentRoundingMode 1.0)))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_acos_~x#1| ((_ to_fp 11 53) currentRoundingMode 1.0)))) [2022-07-19 14:00:09,284 INFO L899 garLoopResultBuilder]: For program point L168-3(lines 166 180) no Hoare annotation was computed. [2022-07-19 14:00:09,284 INFO L899 garLoopResultBuilder]: For program point L193(lines 193 225) no Hoare annotation was computed. [2022-07-19 14:00:09,284 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-19 14:00:09,284 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 160 164) no Hoare annotation was computed. [2022-07-19 14:00:09,284 INFO L895 garLoopResultBuilder]: At program point L160-2(lines 160 164) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_acos_~x#1| ((_ to_fp 11 53) currentRoundingMode 1.0))) [2022-07-19 14:00:09,284 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-19 14:00:09,285 INFO L899 garLoopResultBuilder]: For program point L160-3(lines 160 164) no Hoare annotation was computed. [2022-07-19 14:00:09,285 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-19 14:00:09,285 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 239) no Hoare annotation was computed. [2022-07-19 14:00:09,285 INFO L899 garLoopResultBuilder]: For program point L181(lines 181 225) no Hoare annotation was computed. [2022-07-19 14:00:09,285 INFO L902 garLoopResultBuilder]: At program point L243(lines 228 244) the Hoare annotation is: true [2022-07-19 14:00:09,285 INFO L899 garLoopResultBuilder]: For program point L239(line 239) no Hoare annotation was computed. [2022-07-19 14:00:09,285 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-19 14:00:09,285 INFO L899 garLoopResultBuilder]: For program point L182(lines 182 183) no Hoare annotation was computed. [2022-07-19 14:00:09,286 INFO L899 garLoopResultBuilder]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2022-07-19 14:00:09,286 INFO L895 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short16#1| (= |ULTIMATE.start_main_~res~0#1| (_ +zero 11 53)) (= (_ +zero 11 53) |ULTIMATE.start___ieee754_acos_#res#1|) (= (_ +zero 11 53) |ULTIMATE.start___signbit_double_~x#1|)) [2022-07-19 14:00:09,286 INFO L899 garLoopResultBuilder]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2022-07-19 14:00:09,286 INFO L895 garLoopResultBuilder]: At program point L207(line 207) the Hoare annotation is: false [2022-07-19 14:00:09,286 INFO L899 garLoopResultBuilder]: For program point L174(lines 174 177) no Hoare annotation was computed. [2022-07-19 14:00:09,286 INFO L899 garLoopResultBuilder]: For program point L207-1(line 207) no Hoare annotation was computed. [2022-07-19 14:00:09,286 INFO L899 garLoopResultBuilder]: For program point L166(lines 166 180) no Hoare annotation was computed. [2022-07-19 14:00:09,287 INFO L895 garLoopResultBuilder]: At program point L224(lines 157 226) the Hoare annotation is: (= (_ +zero 11 53) |ULTIMATE.start___ieee754_acos_#res#1|) [2022-07-19 14:00:09,289 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-07-19 14:00:09,290 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 14:00:09,320 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] [2022-07-19 14:00:09,320 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2022-07-19 14:00:09,321 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2022-07-19 14:00:09,321 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2022-07-19 14:00:09,321 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2022-07-19 14:00:09,321 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] [2022-07-19 14:00:09,321 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2022-07-19 14:00:09,321 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2022-07-19 14:00:09,322 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2022-07-19 14:00:09,322 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2022-07-19 14:00:09,322 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-19 14:00:09,322 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-19 14:00:09,324 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] [2022-07-19 14:00:09,325 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2022-07-19 14:00:09,325 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2022-07-19 14:00:09,325 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2022-07-19 14:00:09,325 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2022-07-19 14:00:09,325 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] [2022-07-19 14:00:09,325 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2022-07-19 14:00:09,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2022-07-19 14:00:09,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2022-07-19 14:00:09,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2022-07-19 14:00:09,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-19 14:00:09,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-19 14:00:09,327 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-19 14:00:09,327 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-19 14:00:09,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 02:00:09 BoogieIcfgContainer [2022-07-19 14:00:09,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 14:00:09,331 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 14:00:09,331 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 14:00:09,331 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 14:00:09,332 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:59:46" (3/4) ... [2022-07-19 14:00:09,334 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-19 14:00:09,339 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrt [2022-07-19 14:00:09,351 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2022-07-19 14:00:09,352 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-07-19 14:00:09,352 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-07-19 14:00:09,352 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 14:00:09,374 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) [2022-07-19 14:00:09,374 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_skolemized_q#valueAsBitvector_15 : bv64, v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8 : bv32 :: (~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8][4bv32]) == ix && x == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_15[63:63], v_skolemized_q#valueAsBitvector_15[62:52], v_skolemized_q#valueAsBitvector_15[51:0])) && v_skolemized_q#valueAsBitvector_15[63:32] == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8][4bv32]) && (\exists v_skolemized_q#valueAsBitvector_21 : bv64, currentRoundingMode : FloatRoundingMode :: hx == v_skolemized_q#valueAsBitvector_21[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_21[63:63], v_skolemized_q#valueAsBitvector_21[62:52], v_skolemized_q#valueAsBitvector_21[51:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0))) && (\exists currentRoundingMode : FloatRoundingMode :: x == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) [2022-07-19 14:00:09,375 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ~Pluszero~LONGDOUBLE() == \result [2022-07-19 14:00:09,377 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((aux-res == 0.0 && __signbit_double(res) == 0-aux && res == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == x [2022-07-19 14:00:09,378 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: aux-res == 0.0 && __signbit_double(res) == 0-aux && 0bv32 == \result [2022-07-19 14:00:09,410 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 14:00:09,410 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 14:00:09,411 INFO L158 Benchmark]: Toolchain (without parser) took 41850.66ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 32.7MB in the beginning and 40.2MB in the end (delta: -7.6MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2022-07-19 14:00:09,411 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 54.5MB. Free memory was 36.0MB in the beginning and 36.0MB in the end (delta: 29.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:00:09,412 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.32ms. Allocated memory is still 54.5MB. Free memory was 32.4MB in the beginning and 33.4MB in the end (delta: -964.0kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-19 14:00:09,412 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.71ms. Allocated memory is still 54.5MB. Free memory was 33.4MB in the beginning and 31.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:00:09,412 INFO L158 Benchmark]: Boogie Preprocessor took 68.62ms. Allocated memory is still 54.5MB. Free memory was 31.3MB in the beginning and 28.8MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-19 14:00:09,412 INFO L158 Benchmark]: RCFGBuilder took 18385.47ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 28.8MB in the beginning and 35.0MB in the end (delta: -6.2MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2022-07-19 14:00:09,413 INFO L158 Benchmark]: TraceAbstraction took 22882.78ms. Allocated memory is still 67.1MB. Free memory was 34.5MB in the beginning and 45.3MB in the end (delta: -10.8MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2022-07-19 14:00:09,413 INFO L158 Benchmark]: Witness Printer took 79.57ms. Allocated memory is still 67.1MB. Free memory was 45.3MB in the beginning and 40.2MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-19 14:00:09,415 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 54.5MB. Free memory was 36.0MB in the beginning and 36.0MB in the end (delta: 29.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 366.32ms. Allocated memory is still 54.5MB. Free memory was 32.4MB in the beginning and 33.4MB in the end (delta: -964.0kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.71ms. Allocated memory is still 54.5MB. Free memory was 33.4MB in the beginning and 31.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 68.62ms. Allocated memory is still 54.5MB. Free memory was 31.3MB in the beginning and 28.8MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 18385.47ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 28.8MB in the beginning and 35.0MB in the end (delta: -6.2MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * TraceAbstraction took 22882.78ms. Allocated memory is still 67.1MB. Free memory was 34.5MB in the beginning and 45.3MB in the end (delta: -10.8MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Witness Printer took 79.57ms. Allocated memory is still 67.1MB. Free memory was 45.3MB in the beginning and 40.2MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 239]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 376 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 34 IncrementalHoareTripleChecker+Unchecked, 196 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25 IncrementalHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 180 mSDtfsCounter, 25 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 9.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 37 PreInvPairs, 43 NumberOfFragments, 88 HoareAnnotationTreeSize, 37 FomulaSimplifications, 13 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 16 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 12.5s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 76 ConstructedInterpolants, 21 QuantifiedInterpolants, 497 SizeOfPredicates, 31 NumberOfNonLiveVariables, 409 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: aux-res == 0.0 && __signbit_double(res) == 0-aux && 0bv32 == \result - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 168]: Loop Invariant [2022-07-19 14:00:09,435 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] [2022-07-19 14:00:09,435 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2022-07-19 14:00:09,435 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2022-07-19 14:00:09,436 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2022-07-19 14:00:09,436 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2022-07-19 14:00:09,436 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] [2022-07-19 14:00:09,436 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2022-07-19 14:00:09,436 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2022-07-19 14:00:09,436 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2022-07-19 14:00:09,436 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2022-07-19 14:00:09,437 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-19 14:00:09,437 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-19 14:00:09,437 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] [2022-07-19 14:00:09,439 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2022-07-19 14:00:09,439 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2022-07-19 14:00:09,440 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2022-07-19 14:00:09,440 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2022-07-19 14:00:09,440 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8,QUANTIFIED] [2022-07-19 14:00:09,440 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2022-07-19 14:00:09,440 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2022-07-19 14:00:09,440 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2022-07-19 14:00:09,440 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2022-07-19 14:00:09,441 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-19 14:00:09,441 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((\exists v_skolemized_q#valueAsBitvector_15 : bv64, v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8 : bv32 :: (~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8][4bv32]) == ix && x == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_15[63:63], v_skolemized_q#valueAsBitvector_15[62:52], v_skolemized_q#valueAsBitvector_15[51:0])) && v_skolemized_q#valueAsBitvector_15[63:32] == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_acos_~#gh_u~1#1.base_8][4bv32]) && (\exists v_skolemized_q#valueAsBitvector_21 : bv64, currentRoundingMode : FloatRoundingMode :: hx == v_skolemized_q#valueAsBitvector_21[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_21[63:63], v_skolemized_q#valueAsBitvector_21[62:52], v_skolemized_q#valueAsBitvector_21[51:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0))) && (\exists currentRoundingMode : FloatRoundingMode :: x == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) - InvariantResult [Line: 228]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 157]: Loop Invariant Derived loop invariant: ~Pluszero~LONGDOUBLE() == \result - InvariantResult [Line: 160]: Loop Invariant [2022-07-19 14:00:09,448 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-19 14:00:09,449 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: ((aux-res == 0.0 && __signbit_double(res) == 0-aux && res == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == x - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-07-19 14:00:09,667 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-07-19 14:00:09,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE