./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1210.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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_1210.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 ec4125207afaf1b514f6960540fbcd04b5d06d11b290a09d0632548b03e12b1f --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 01:48:23,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 01:48:23,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 01:48:23,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 01:48:23,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 01:48:23,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 01:48:23,683 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 01:48:23,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 01:48:23,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 01:48:23,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 01:48:23,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 01:48:23,696 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 01:48:23,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 01:48:23,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 01:48:23,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 01:48:23,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 01:48:23,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 01:48:23,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 01:48:23,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 01:48:23,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 01:48:23,712 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 01:48:23,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 01:48:23,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 01:48:23,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 01:48:23,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 01:48:23,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 01:48:23,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 01:48:23,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 01:48:23,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 01:48:23,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 01:48:23,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 01:48:23,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 01:48:23,727 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 01:48:23,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 01:48:23,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 01:48:23,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 01:48:23,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 01:48:23,730 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 01:48:23,730 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 01:48:23,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 01:48:23,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 01:48:23,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 01:48:23,737 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 01:48:23,776 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 01:48:23,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 01:48:23,777 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 01:48:23,777 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 01:48:23,778 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 01:48:23,778 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 01:48:23,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 01:48:23,779 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 01:48:23,780 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 01:48:23,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 01:48:23,781 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 01:48:23,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 01:48:23,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 01:48:23,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 01:48:23,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 01:48:23,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 01:48:23,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 01:48:23,782 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 01:48:23,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 01:48:23,783 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 01:48:23,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 01:48:23,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 01:48:23,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 01:48:23,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 01:48:23,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:48:23,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 01:48:23,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 01:48:23,784 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 01:48:23,784 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 01:48:23,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 01:48:23,785 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 01:48:23,785 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 01:48:23,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 01:48:23,786 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec4125207afaf1b514f6960540fbcd04b5d06d11b290a09d0632548b03e12b1f [2022-07-21 01:48:24,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 01:48:24,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 01:48:24,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 01:48:24,158 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 01:48:24,158 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 01:48:24,160 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2022-07-21 01:48:24,223 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/148d4ce8d/2c795d5026d54d64855db4949b215020/FLAG43bf8fea5 [2022-07-21 01:48:24,611 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 01:48:24,611 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2022-07-21 01:48:24,617 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/148d4ce8d/2c795d5026d54d64855db4949b215020/FLAG43bf8fea5 [2022-07-21 01:48:25,027 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/148d4ce8d/2c795d5026d54d64855db4949b215020 [2022-07-21 01:48:25,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 01:48:25,031 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 01:48:25,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 01:48:25,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 01:48:25,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 01:48:25,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:48:25" (1/1) ... [2022-07-21 01:48:25,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@497be826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:25, skipping insertion in model container [2022-07-21 01:48:25,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:48:25" (1/1) ... [2022-07-21 01:48:25,045 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 01:48:25,073 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 01:48:25,218 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_1210.c[3091,3104] [2022-07-21 01:48:25,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:48:25,228 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 01:48:25,289 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_1210.c[3091,3104] [2022-07-21 01:48:25,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:48:25,302 INFO L208 MainTranslator]: Completed translation [2022-07-21 01:48:25,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:25 WrapperNode [2022-07-21 01:48:25,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 01:48:25,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 01:48:25,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 01:48:25,304 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 01:48:25,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:25" (1/1) ... [2022-07-21 01:48:25,328 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:25" (1/1) ... [2022-07-21 01:48:25,361 INFO L137 Inliner]: procedures = 16, calls = 70, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 199 [2022-07-21 01:48:25,364 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 01:48:25,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 01:48:25,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 01:48:25,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 01:48:25,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:25" (1/1) ... [2022-07-21 01:48:25,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:25" (1/1) ... [2022-07-21 01:48:25,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:25" (1/1) ... [2022-07-21 01:48:25,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:25" (1/1) ... [2022-07-21 01:48:25,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:25" (1/1) ... [2022-07-21 01:48:25,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:25" (1/1) ... [2022-07-21 01:48:25,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:25" (1/1) ... [2022-07-21 01:48:25,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 01:48:25,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 01:48:25,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 01:48:25,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 01:48:25,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:25" (1/1) ... [2022-07-21 01:48:25,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:48:25,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 01:48:25,473 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) [2022-07-21 01:48:25,503 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 [2022-07-21 01:48:25,517 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2022-07-21 01:48:25,517 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2022-07-21 01:48:25,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 01:48:25,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 01:48:25,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 01:48:25,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-21 01:48:25,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 01:48:25,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-21 01:48:25,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 01:48:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 01:48:25,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 01:48:25,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 01:48:25,615 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 01:48:25,617 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 01:48:25,947 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 01:48:25,953 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 01:48:25,953 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2022-07-21 01:48:25,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:48:25 BoogieIcfgContainer [2022-07-21 01:48:25,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 01:48:25,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 01:48:25,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 01:48:25,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 01:48:25,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:48:25" (1/3) ... [2022-07-21 01:48:25,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24edb7db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:48:25, skipping insertion in model container [2022-07-21 01:48:25,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:25" (2/3) ... [2022-07-21 01:48:25,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24edb7db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:48:25, skipping insertion in model container [2022-07-21 01:48:25,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:48:25" (3/3) ... [2022-07-21 01:48:25,962 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2022-07-21 01:48:25,974 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 01:48:25,974 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 01:48:26,019 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 01:48:26,027 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@6f3d0e4a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2ddffae3 [2022-07-21 01:48:26,028 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 01:48:26,040 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 44 states have (on average 1.6363636363636365) internal successors, (72), 45 states have internal predecessors, (72), 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) [2022-07-21 01:48:26,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-21 01:48:26,047 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:48:26,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:48:26,048 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:48:26,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:48:26,052 INFO L85 PathProgramCache]: Analyzing trace with hash -542918343, now seen corresponding path program 1 times [2022-07-21 01:48:26,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 01:48:26,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664552843] [2022-07-21 01:48:26,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:48:26,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 01:48:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:48:26,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-21 01:48:26,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:48:26,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:48:26,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 01:48:26,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664552843] [2022-07-21 01:48:26,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664552843] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:48:26,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:48:26,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 01:48:26,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329531880] [2022-07-21 01:48:26,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:48:26,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 01:48:26,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 01:48:26,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 01:48:26,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:48:26,251 INFO L87 Difference]: Start difference. First operand has 49 states, 44 states have (on average 1.6363636363636365) internal successors, (72), 45 states have internal predecessors, (72), 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 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 01:48:26,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:48:26,278 INFO L93 Difference]: Finished difference Result 96 states and 150 transitions. [2022-07-21 01:48:26,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 01:48:26,281 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-07-21 01:48:26,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:48:26,287 INFO L225 Difference]: With dead ends: 96 [2022-07-21 01:48:26,287 INFO L226 Difference]: Without dead ends: 46 [2022-07-21 01:48:26,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:48:26,294 INFO L413 NwaCegarLoop]: 55 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, 55 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 [2022-07-21 01:48:26,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 01:48:26,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-07-21 01:48:26,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-07-21 01:48:26,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 42 states have (on average 1.1428571428571428) internal successors, (48), 42 states have internal predecessors, (48), 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) [2022-07-21 01:48:26,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2022-07-21 01:48:26,337 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 17 [2022-07-21 01:48:26,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:48:26,338 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2022-07-21 01:48:26,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 01:48:26,339 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2022-07-21 01:48:26,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-21 01:48:26,342 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:48:26,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:48:26,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 01:48:26,343 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:48:26,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:48:26,345 INFO L85 PathProgramCache]: Analyzing trace with hash 634117776, now seen corresponding path program 1 times [2022-07-21 01:48:26,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 01:48:26,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117465934] [2022-07-21 01:48:26,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:48:26,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 01:48:26,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:48:26,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 01:48:26,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:48:26,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:48:26,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 01:48:26,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117465934] [2022-07-21 01:48:26,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117465934] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:48:26,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:48:26,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 01:48:26,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847588506] [2022-07-21 01:48:26,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:48:26,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 01:48:26,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 01:48:26,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 01:48:26,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 01:48:26,504 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 01:48:26,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:48:26,523 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2022-07-21 01:48:26,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 01:48:26,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-07-21 01:48:26,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:48:26,526 INFO L225 Difference]: With dead ends: 49 [2022-07-21 01:48:26,526 INFO L226 Difference]: Without dead ends: 46 [2022-07-21 01:48:26,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 01:48:26,536 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 01:48:26,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 01:48:26,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-07-21 01:48:26,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-07-21 01:48:26,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 42 states have (on average 1.119047619047619) internal successors, (47), 42 states have internal predecessors, (47), 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) [2022-07-21 01:48:26,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2022-07-21 01:48:26,551 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 19 [2022-07-21 01:48:26,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:48:26,554 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2022-07-21 01:48:26,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 01:48:26,555 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2022-07-21 01:48:26,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-21 01:48:26,561 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:48:26,561 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:48:26,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 01:48:26,562 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:48:26,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:48:26,563 INFO L85 PathProgramCache]: Analyzing trace with hash -601800040, now seen corresponding path program 1 times [2022-07-21 01:48:26,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 01:48:26,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792359103] [2022-07-21 01:48:26,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:48:26,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 01:48:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:48:26,653 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 01:48:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:48:26,730 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 01:48:26,731 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 01:48:26,732 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 01:48:26,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 01:48:26,736 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-21 01:48:26,739 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 01:48:26,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:48:26 BoogieIcfgContainer [2022-07-21 01:48:26,783 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 01:48:26,783 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 01:48:26,783 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 01:48:26,783 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 01:48:26,784 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:48:25" (3/4) ... [2022-07-21 01:48:26,786 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-21 01:48:26,786 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 01:48:26,786 INFO L158 Benchmark]: Toolchain (without parser) took 1755.09ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 39.3MB in the beginning and 41.4MB in the end (delta: -2.1MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2022-07-21 01:48:26,787 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 60.8MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:48:26,787 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.28ms. Allocated memory is still 60.8MB. Free memory was 39.1MB in the beginning and 43.0MB in the end (delta: -3.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-21 01:48:26,789 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.24ms. Allocated memory is still 60.8MB. Free memory was 43.0MB in the beginning and 40.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:48:26,790 INFO L158 Benchmark]: Boogie Preprocessor took 67.48ms. Allocated memory is still 60.8MB. Free memory was 40.2MB in the beginning and 38.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:48:26,790 INFO L158 Benchmark]: RCFGBuilder took 521.24ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 38.1MB in the beginning and 45.1MB in the end (delta: -6.9MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2022-07-21 01:48:26,790 INFO L158 Benchmark]: TraceAbstraction took 826.05ms. Allocated memory is still 73.4MB. Free memory was 44.5MB in the beginning and 41.8MB in the end (delta: 2.7MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. [2022-07-21 01:48:26,791 INFO L158 Benchmark]: Witness Printer took 2.46ms. Allocated memory is still 73.4MB. Free memory was 41.8MB in the beginning and 41.4MB in the end (delta: 410.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:48:26,793 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 60.8MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.28ms. Allocated memory is still 60.8MB. Free memory was 39.1MB in the beginning and 43.0MB in the end (delta: -3.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.24ms. Allocated memory is still 60.8MB. Free memory was 43.0MB in the beginning and 40.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.48ms. Allocated memory is still 60.8MB. Free memory was 40.2MB in the beginning and 38.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 521.24ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 38.1MB in the beginning and 45.1MB in the end (delta: -6.9MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * TraceAbstraction took 826.05ms. Allocated memory is still 73.4MB. Free memory was 44.5MB in the beginning and 41.8MB in the end (delta: 2.7MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. * Witness Printer took 2.46ms. Allocated memory is still 73.4MB. Free memory was 41.8MB in the beginning and 41.4MB in the end (delta: 410.8kB). Peak memory consumption was 2.1MB. 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: 124]: 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 17, overapproximation of someBinaryArithmeticDOUBLEoperation at line 118, overapproximation of bitwiseAnd at line 35. Possible FailurePath: [L19] static const double one_modf = 1.0; VAL [one_modf=1] [L118] double x = 0.0 / 0.0; [L119] double iptr; [L120] CALL, EXPR modf_double(x, &iptr) [L22] __int32_t i0, i1, j0; [L23] __uint32_t i; VAL [\old(x)=4294967298, iptr={6:0}, iptr={6:0}, one_modf=1, x=4294967298] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=4294967298, i0=-1048576, i1=-2, iptr={6:0}, iptr={6:0}, j0=-1022, one_modf=1, x=4294967298] [L31] COND TRUE j0 < 20 VAL [\old(x)=4294967298, i0=-1048576, i1=-2, iptr={6:0}, iptr={6:0}, j0=-1022, one_modf=1, x=4294967298] [L32] COND TRUE j0 < 0 VAL [\old(x)=4294967298, i0=-1048576, i1=-2, iptr={6:0}, iptr={6:0}, j0=-1022, one_modf=1, x=4294967298] [L34] ieee_double_shape_type iw_u; [L35] iw_u.parts.msw = (i0 & 0x80000000) [L36] iw_u.parts.lsw = (0) [L37] EXPR iw_u.value [L37] (*iptr) = iw_u.value [L39] return x; VAL [\old(x)=4294967298, \result=4294967298, i0=-1048576, i1=-2, iptr={6:0}, iptr={6:0}, j0=-1022, one_modf=1, x=4294967298] [L120] RET, EXPR modf_double(x, &iptr) [L120] double res = modf_double(x, &iptr); [L123] EXPR \read(iptr) VAL [\read(iptr)=4294967295, iptr={6:0}, one_modf=1, res=4294967298, x=4294967298] [L123] CALL, EXPR isnan_double(iptr) VAL [\old(x)=4294967295, one_modf=1] [L17] return x != x; VAL [\old(x)=4294967295, \result=1, one_modf=1, x=4294967295] [L123] RET, EXPR isnan_double(iptr) VAL [\read(iptr)=4294967295, iptr={6:0}, isnan_double(iptr)=1, one_modf=1, res=4294967298, x=4294967298] [L123] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=4294967295, iptr={6:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, one_modf=1, res=4294967298, x=4294967298] [L123] CALL, EXPR isnan_double(res) VAL [\old(x)=4294967298, one_modf=1] [L17] return x != x; VAL [\old(x)=4294967298, \result=0, one_modf=1, x=4294967298] [L123] RET, EXPR isnan_double(res) VAL [\read(iptr)=4294967295, iptr={6:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1, res=4294967298, x=4294967298] [L123] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=4294967295, iptr={6:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1, res=4294967298, x=4294967298] [L123] COND TRUE isnan_double(iptr) && !isnan_double(res) [L124] reach_error() VAL [iptr={6:0}, one_modf=1, res=4294967298, x=4294967298] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 2, 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, 153 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 107 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 35 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-21 01:48:26,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- 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_1210.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 ec4125207afaf1b514f6960540fbcd04b5d06d11b290a09d0632548b03e12b1f --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 01:48:28,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 01:48:28,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 01:48:28,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 01:48:28,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 01:48:28,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 01:48:28,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 01:48:28,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 01:48:28,694 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 01:48:28,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 01:48:28,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 01:48:28,703 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 01:48:28,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 01:48:28,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 01:48:28,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 01:48:28,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 01:48:28,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 01:48:28,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 01:48:28,712 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 01:48:28,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 01:48:28,719 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 01:48:28,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 01:48:28,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 01:48:28,722 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 01:48:28,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 01:48:28,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 01:48:28,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 01:48:28,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 01:48:28,731 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 01:48:28,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 01:48:28,732 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 01:48:28,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 01:48:28,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 01:48:28,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 01:48:28,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 01:48:28,736 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 01:48:28,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 01:48:28,737 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 01:48:28,737 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 01:48:28,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 01:48:28,738 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 01:48:28,739 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 01:48:28,747 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-21 01:48:28,771 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 01:48:28,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 01:48:28,772 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 01:48:28,772 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 01:48:28,773 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 01:48:28,773 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 01:48:28,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 01:48:28,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 01:48:28,774 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 01:48:28,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 01:48:28,775 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 01:48:28,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 01:48:28,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 01:48:28,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 01:48:28,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 01:48:28,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 01:48:28,776 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 01:48:28,776 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 01:48:28,776 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 01:48:28,777 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 01:48:28,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 01:48:28,777 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 01:48:28,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 01:48:28,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 01:48:28,778 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 01:48:28,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 01:48:28,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:48:28,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 01:48:28,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 01:48:28,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 01:48:28,779 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 01:48:28,779 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 01:48:28,779 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 01:48:28,779 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 01:48:28,780 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 01:48:28,780 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 01:48:28,780 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec4125207afaf1b514f6960540fbcd04b5d06d11b290a09d0632548b03e12b1f [2022-07-21 01:48:29,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 01:48:29,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 01:48:29,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 01:48:29,097 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 01:48:29,097 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 01:48:29,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2022-07-21 01:48:29,154 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a1c7a31/290ce38935c742b38da9970df0176391/FLAG45a82b61e [2022-07-21 01:48:29,586 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 01:48:29,590 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2022-07-21 01:48:29,597 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a1c7a31/290ce38935c742b38da9970df0176391/FLAG45a82b61e [2022-07-21 01:48:29,985 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86a1c7a31/290ce38935c742b38da9970df0176391 [2022-07-21 01:48:29,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 01:48:29,988 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 01:48:29,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 01:48:29,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 01:48:29,993 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 01:48:29,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:48:29" (1/1) ... [2022-07-21 01:48:29,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d6e81b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:29, skipping insertion in model container [2022-07-21 01:48:29,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:48:29" (1/1) ... [2022-07-21 01:48:30,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 01:48:30,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 01:48:30,146 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_1210.c[3091,3104] [2022-07-21 01:48:30,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:48:30,172 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 01:48:30,263 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_1210.c[3091,3104] [2022-07-21 01:48:30,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:48:30,283 INFO L208 MainTranslator]: Completed translation [2022-07-21 01:48:30,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:30 WrapperNode [2022-07-21 01:48:30,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 01:48:30,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 01:48:30,286 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 01:48:30,286 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 01:48:30,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:30" (1/1) ... [2022-07-21 01:48:30,313 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:30" (1/1) ... [2022-07-21 01:48:30,345 INFO L137 Inliner]: procedures = 19, calls = 70, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 198 [2022-07-21 01:48:30,346 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 01:48:30,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 01:48:30,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 01:48:30,348 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 01:48:30,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:30" (1/1) ... [2022-07-21 01:48:30,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:30" (1/1) ... [2022-07-21 01:48:30,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:30" (1/1) ... [2022-07-21 01:48:30,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:30" (1/1) ... [2022-07-21 01:48:30,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:30" (1/1) ... [2022-07-21 01:48:30,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:30" (1/1) ... [2022-07-21 01:48:30,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:30" (1/1) ... [2022-07-21 01:48:30,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 01:48:30,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 01:48:30,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 01:48:30,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 01:48:30,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:30" (1/1) ... [2022-07-21 01:48:30,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:48:30,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 01:48:30,445 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) [2022-07-21 01:48:30,470 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 [2022-07-21 01:48:30,488 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2022-07-21 01:48:30,489 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2022-07-21 01:48:30,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 01:48:30,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-07-21 01:48:30,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-07-21 01:48:30,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 01:48:30,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 01:48:30,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 01:48:30,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 01:48:30,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 01:48:30,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 01:48:30,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 01:48:30,591 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 01:48:30,594 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 01:48:32,145 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 01:48:32,150 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 01:48:32,151 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2022-07-21 01:48:32,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:48:32 BoogieIcfgContainer [2022-07-21 01:48:32,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 01:48:32,154 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 01:48:32,154 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 01:48:32,157 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 01:48:32,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:48:29" (1/3) ... [2022-07-21 01:48:32,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a3783b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:48:32, skipping insertion in model container [2022-07-21 01:48:32,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:48:30" (2/3) ... [2022-07-21 01:48:32,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a3783b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:48:32, skipping insertion in model container [2022-07-21 01:48:32,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:48:32" (3/3) ... [2022-07-21 01:48:32,160 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2022-07-21 01:48:32,171 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 01:48:32,171 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 01:48:32,211 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 01:48:32,220 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@194c3d33, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4c7400c6 [2022-07-21 01:48:32,223 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 01:48:32,227 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 44 states have (on average 1.6363636363636365) internal successors, (72), 45 states have internal predecessors, (72), 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) [2022-07-21 01:48:32,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-21 01:48:32,235 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:48:32,236 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:48:32,237 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:48:32,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:48:32,244 INFO L85 PathProgramCache]: Analyzing trace with hash -542918343, now seen corresponding path program 1 times [2022-07-21 01:48:32,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:48:32,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370821652] [2022-07-21 01:48:32,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:48:32,258 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:48:32,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:48:32,261 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) [2022-07-21 01:48:32,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 01:48:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:48:32,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-21 01:48:32,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:48:32,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:48:32,434 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:48:32,435 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:48:32,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370821652] [2022-07-21 01:48:32,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [370821652] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:48:32,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:48:32,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 01:48:32,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28369869] [2022-07-21 01:48:32,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:48:32,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 01:48:32,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:48:32,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 01:48:32,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:48:32,479 INFO L87 Difference]: Start difference. First operand has 49 states, 44 states have (on average 1.6363636363636365) internal successors, (72), 45 states have internal predecessors, (72), 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 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 01:48:32,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:48:32,509 INFO L93 Difference]: Finished difference Result 96 states and 150 transitions. [2022-07-21 01:48:32,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 01:48:32,513 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-07-21 01:48:32,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:48:32,521 INFO L225 Difference]: With dead ends: 96 [2022-07-21 01:48:32,521 INFO L226 Difference]: Without dead ends: 46 [2022-07-21 01:48:32,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:48:32,533 INFO L413 NwaCegarLoop]: 55 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, 55 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 [2022-07-21 01:48:32,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 01:48:32,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-07-21 01:48:32,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-07-21 01:48:32,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 42 states have (on average 1.1428571428571428) internal successors, (48), 42 states have internal predecessors, (48), 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) [2022-07-21 01:48:32,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2022-07-21 01:48:32,585 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 17 [2022-07-21 01:48:32,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:48:32,586 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2022-07-21 01:48:32,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 01:48:32,587 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2022-07-21 01:48:32,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-21 01:48:32,589 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:48:32,590 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:48:32,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 01:48:32,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:48:32,803 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:48:32,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:48:32,803 INFO L85 PathProgramCache]: Analyzing trace with hash 634117776, now seen corresponding path program 1 times [2022-07-21 01:48:32,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:48:32,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757411105] [2022-07-21 01:48:32,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:48:32,804 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:48:32,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:48:32,809 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) [2022-07-21 01:48:32,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 01:48:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:48:32,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-21 01:48:32,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:48:33,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:48:33,132 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:48:33,133 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:48:33,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757411105] [2022-07-21 01:48:33,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [757411105] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:48:33,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:48:33,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 01:48:33,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610023375] [2022-07-21 01:48:33,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:48:33,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 01:48:33,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:48:33,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 01:48:33,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 01:48:33,136 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 01:48:33,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:48:33,144 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2022-07-21 01:48:33,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 01:48:33,145 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-07-21 01:48:33,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:48:33,145 INFO L225 Difference]: With dead ends: 58 [2022-07-21 01:48:33,146 INFO L226 Difference]: Without dead ends: 33 [2022-07-21 01:48:33,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 01:48:33,147 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 01:48:33,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 17 Unchecked, 0.0s Time] [2022-07-21 01:48:33,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-07-21 01:48:33,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-07-21 01:48:33,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 29 states have (on average 1.103448275862069) internal successors, (32), 29 states have internal predecessors, (32), 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) [2022-07-21 01:48:33,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2022-07-21 01:48:33,153 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 19 [2022-07-21 01:48:33,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:48:33,153 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2022-07-21 01:48:33,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 01:48:33,154 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2022-07-21 01:48:33,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-21 01:48:33,154 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:48:33,155 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:48:33,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 01:48:33,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:48:33,369 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:48:33,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:48:33,370 INFO L85 PathProgramCache]: Analyzing trace with hash -992387949, now seen corresponding path program 1 times [2022-07-21 01:48:33,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:48:33,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [159836777] [2022-07-21 01:48:33,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:48:33,371 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:48:33,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:48:33,372 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) [2022-07-21 01:48:33,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 01:48:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:48:33,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 01:48:33,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:48:33,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:48:33,562 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:48:33,562 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:48:33,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [159836777] [2022-07-21 01:48:33,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [159836777] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:48:33,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:48:33,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 01:48:33,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192060276] [2022-07-21 01:48:33,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:48:33,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 01:48:33,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:48:33,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 01:48:33,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 01:48:33,565 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 01:48:33,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:48:33,631 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2022-07-21 01:48:33,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 01:48:33,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-07-21 01:48:33,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:48:33,632 INFO L225 Difference]: With dead ends: 36 [2022-07-21 01:48:33,633 INFO L226 Difference]: Without dead ends: 33 [2022-07-21 01:48:33,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 01:48:33,634 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 01:48:33,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 01:48:33,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-07-21 01:48:33,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-07-21 01:48:33,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 29 states have internal predecessors, (31), 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) [2022-07-21 01:48:33,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2022-07-21 01:48:33,639 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 20 [2022-07-21 01:48:33,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:48:33,640 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2022-07-21 01:48:33,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 01:48:33,641 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2022-07-21 01:48:33,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-21 01:48:33,641 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:48:33,642 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:48:33,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 01:48:33,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:48:33,856 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:48:33,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:48:33,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1527705995, now seen corresponding path program 1 times [2022-07-21 01:48:33,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:48:33,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786739196] [2022-07-21 01:48:33,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:48:33,857 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:48:33,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:48:33,859 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) [2022-07-21 01:48:33,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 01:48:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:48:34,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-21 01:48:34,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:48:34,208 INFO L356 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-07-21 01:48:34,209 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 21 [2022-07-21 01:48:34,548 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-21 01:48:34,548 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:48:34,548 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:48:34,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786739196] [2022-07-21 01:48:34,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [786739196] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:48:34,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:48:34,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 01:48:34,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145937585] [2022-07-21 01:48:34,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:48:34,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 01:48:34,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:48:34,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 01:48:34,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-21 01:48:34,551 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 01:48:36,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:48:36,089 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2022-07-21 01:48:36,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 01:48:36,090 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-07-21 01:48:36,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:48:36,091 INFO L225 Difference]: With dead ends: 42 [2022-07-21 01:48:36,091 INFO L226 Difference]: Without dead ends: 30 [2022-07-21 01:48:36,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-21 01:48:36,092 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 23 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 35 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-21 01:48:36,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 170 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 35 Unchecked, 1.4s Time] [2022-07-21 01:48:36,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-07-21 01:48:36,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-07-21 01:48:36,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 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) [2022-07-21 01:48:36,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2022-07-21 01:48:36,096 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 25 [2022-07-21 01:48:36,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:48:36,096 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2022-07-21 01:48:36,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 01:48:36,097 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2022-07-21 01:48:36,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-21 01:48:36,099 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:48:36,100 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:48:36,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 01:48:36,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:48:36,318 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:48:36,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:48:36,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1271287075, now seen corresponding path program 1 times [2022-07-21 01:48:36,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:48:36,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2048444651] [2022-07-21 01:48:36,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:48:36,319 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:48:36,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:48:36,321 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) [2022-07-21 01:48:36,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 01:48:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:48:36,702 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 01:48:36,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:48:37,054 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-21 01:48:37,055 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 01:48:37,055 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 01:48:37,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-21 01:48:37,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:48:37,261 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-21 01:48:37,264 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 01:48:37,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:48:37 BoogieIcfgContainer [2022-07-21 01:48:37,297 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 01:48:37,297 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 01:48:37,298 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 01:48:37,298 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 01:48:37,298 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:48:32" (3/4) ... [2022-07-21 01:48:37,300 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-21 01:48:37,366 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 01:48:37,367 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 01:48:37,369 INFO L158 Benchmark]: Toolchain (without parser) took 7380.65ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.8MB in the beginning and 30.4MB in the end (delta: 1.4MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2022-07-21 01:48:37,370 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 54.5MB. Free memory was 37.1MB in the beginning and 37.0MB in the end (delta: 36.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:48:37,370 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.12ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.7MB in the beginning and 49.2MB in the end (delta: -17.5MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2022-07-21 01:48:37,372 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.77ms. Allocated memory is still 67.1MB. Free memory was 49.2MB in the beginning and 47.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:48:37,372 INFO L158 Benchmark]: Boogie Preprocessor took 60.99ms. Allocated memory is still 67.1MB. Free memory was 47.2MB in the beginning and 45.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:48:37,372 INFO L158 Benchmark]: RCFGBuilder took 1743.19ms. Allocated memory is still 67.1MB. Free memory was 45.1MB in the beginning and 41.5MB in the end (delta: 3.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-21 01:48:37,373 INFO L158 Benchmark]: TraceAbstraction took 5143.44ms. Allocated memory is still 67.1MB. Free memory was 41.0MB in the beginning and 33.3MB in the end (delta: 7.7MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2022-07-21 01:48:37,373 INFO L158 Benchmark]: Witness Printer took 71.18ms. Allocated memory is still 67.1MB. Free memory was 33.3MB in the beginning and 30.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:48:37,375 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 54.5MB. Free memory was 37.1MB in the beginning and 37.0MB in the end (delta: 36.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.12ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.7MB in the beginning and 49.2MB in the end (delta: -17.5MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.77ms. Allocated memory is still 67.1MB. Free memory was 49.2MB in the beginning and 47.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.99ms. Allocated memory is still 67.1MB. Free memory was 47.2MB in the beginning and 45.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1743.19ms. Allocated memory is still 67.1MB. Free memory was 45.1MB in the beginning and 41.5MB in the end (delta: 3.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5143.44ms. Allocated memory is still 67.1MB. Free memory was 41.0MB in the beginning and 33.3MB in the end (delta: 7.7MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Witness Printer took 71.18ms. Allocated memory is still 67.1MB. Free memory was 33.3MB in the beginning and 30.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. 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 - CounterExampleResult [Line: 124]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] static const double one_modf = 1.0; VAL [one_modf=1.0] [L118] double x = 0.0 / 0.0; [L119] double iptr; [L120] CALL, EXPR modf_double(x, &iptr) [L22] __int32_t i0, i1, j0; [L23] __uint32_t i; VAL [\old(x)=NaN, iptr={-2147483645:0}, iptr={-2147483645:0}, one_modf=1.0, x=NaN] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=NaN, i0=2146435072, i1=-2147483648, iptr={-2147483645:0}, iptr={-2147483645:0}, j0=1024, one_modf=1.0, x=NaN] [L31] COND FALSE !(j0 < 20) VAL [\old(x)=NaN, i0=2146435072, i1=-2147483648, iptr={-2147483645:0}, iptr={-2147483645:0}, j0=1024, one_modf=1.0, x=NaN] [L67] COND TRUE j0 > 51 [L68] __uint32_t high; [L69] *iptr = x * one_modf VAL [\old(x)=NaN, i0=2146435072, i1=-2147483648, iptr={-2147483645:0}, iptr={-2147483645:0}, j0=1024, one_modf=1.0, x=NaN] [L71] ieee_double_shape_type gh_u; [L72] gh_u.value = (x) [L73] EXPR gh_u.parts.msw [L73] (high) = gh_u.parts.msw [L76] ieee_double_shape_type iw_u; [L77] iw_u.parts.msw = (high & 0x80000000) [L78] iw_u.parts.lsw = (0) [L79] EXPR iw_u.value [L79] (x) = iw_u.value [L81] return x; VAL [\old(x)=NaN, \result=0.0, high=2146959360, i0=2146435072, i1=-2147483648, iptr={-2147483645:0}, iptr={-2147483645:0}, j0=1024, one_modf=1.0, x=0.0] [L120] RET, EXPR modf_double(x, &iptr) [L120] double res = modf_double(x, &iptr); [L123] EXPR \read(iptr) VAL [\read(iptr)=NaN, iptr={-2147483645:0}, one_modf=1.0, res=0.0, x=NaN] [L123] CALL, EXPR isnan_double(iptr) VAL [\old(x)=NaN, one_modf=1.0] [L17] return x != x; VAL [\old(x)=NaN, \result=1, one_modf=1.0, x=NaN] [L123] RET, EXPR isnan_double(iptr) VAL [\read(iptr)=NaN, iptr={-2147483645:0}, isnan_double(iptr)=1, one_modf=1.0, res=0.0, x=NaN] [L123] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=NaN, iptr={-2147483645:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, one_modf=1.0, res=0.0, x=NaN] [L123] CALL, EXPR isnan_double(res) VAL [\old(x)=0.0, one_modf=1.0] [L17] return x != x; VAL [\old(x)=0.0, \result=0, one_modf=1.0, x=0.0] [L123] RET, EXPR isnan_double(res) VAL [\read(iptr)=NaN, iptr={-2147483645:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1.0, res=0.0, x=NaN] [L123] isnan_double(iptr) && !isnan_double(res) VAL [\read(iptr)=NaN, iptr={-2147483645:0}, isnan_double(iptr)=1, isnan_double(iptr) && !isnan_double(res)=1, isnan_double(res)=0, one_modf=1.0, res=0.0, x=NaN] [L123] COND TRUE isnan_double(iptr) && !isnan_double(res) [L124] reach_error() VAL [iptr={-2147483645:0}, one_modf=1.0, res=0.0, x=NaN] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 407 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 52 IncrementalHoareTripleChecker+Unchecked, 255 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 62 IncrementalHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 152 mSDtfsCounter, 62 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, InterpolantAutomatonStates: 19, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 77 ConstructedInterpolants, 9 QuantifiedInterpolants, 362 SizeOfPredicates, 18 NumberOfNonLiveVariables, 308 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-21 01:48:37,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE