./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1072d.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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/float_req_bl_1072d.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 617ff69384da5814b2b527d10c4fa0e27490c5a4838f31ba8705b37c822dda78 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 14:55:35,875 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 14:55:35,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 14:55:35,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 14:55:35,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 14:55:35,905 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 14:55:35,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 14:55:35,914 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 14:55:35,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 14:55:35,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 14:55:35,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 14:55:35,922 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 14:55:35,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 14:55:35,923 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 14:55:35,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 14:55:35,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 14:55:35,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 14:55:35,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 14:55:35,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 14:55:35,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 14:55:35,936 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 14:55:35,937 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 14:55:35,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 14:55:35,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 14:55:35,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 14:55:35,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 14:55:35,941 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 14:55:35,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 14:55:35,943 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 14:55:35,943 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 14:55:35,944 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 14:55:35,945 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 14:55:35,946 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 14:55:35,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 14:55:35,947 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 14:55:35,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 14:55:35,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 14:55:35,948 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 14:55:35,948 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 14:55:35,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 14:55:35,949 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 14:55:35,950 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 14:55:35,951 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 14:55:35,977 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 14:55:35,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 14:55:35,978 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 14:55:35,978 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 14:55:35,978 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 14:55:35,979 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 14:55:35,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 14:55:35,979 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 14:55:35,979 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 14:55:35,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 14:55:35,980 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 14:55:35,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 14:55:35,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 14:55:35,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 14:55:35,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 14:55:35,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 14:55:35,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 14:55:35,981 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 14:55:35,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 14:55:35,982 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 14:55:35,982 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 14:55:35,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 14:55:35,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 14:55:35,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 14:55:35,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:55:35,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 14:55:35,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 14:55:35,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 14:55:35,983 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 14:55:35,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 14:55:35,983 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 14:55:35,983 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 14:55:35,984 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 14:55:35,984 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617ff69384da5814b2b527d10c4fa0e27490c5a4838f31ba8705b37c822dda78 [2022-07-13 14:55:36,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 14:55:36,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 14:55:36,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 14:55:36,201 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 14:55:36,203 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 14:55:36,204 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1072d.c [2022-07-13 14:55:36,269 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f61fa4c0/63d0248b12424046965bac6325238c9e/FLAG5818ce3ec [2022-07-13 14:55:36,609 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 14:55:36,615 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1072d.c [2022-07-13 14:55:36,626 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f61fa4c0/63d0248b12424046965bac6325238c9e/FLAG5818ce3ec [2022-07-13 14:55:36,634 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f61fa4c0/63d0248b12424046965bac6325238c9e [2022-07-13 14:55:36,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 14:55:36,637 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 14:55:36,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 14:55:36,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 14:55:36,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 14:55:36,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:55:36" (1/1) ... [2022-07-13 14:55:36,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c80f1e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:36, skipping insertion in model container [2022-07-13 14:55:36,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:55:36" (1/1) ... [2022-07-13 14:55:36,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 14:55:36,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:55:36,875 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/float_req_bl_1072d.c[1573,1586] [2022-07-13 14:55:36,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:55:36,883 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 14:55:36,910 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/float_req_bl_1072d.c[1573,1586] [2022-07-13 14:55:36,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:55:36,922 INFO L208 MainTranslator]: Completed translation [2022-07-13 14:55:36,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:36 WrapperNode [2022-07-13 14:55:36,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 14:55:36,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 14:55:36,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 14:55:36,924 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 14:55:36,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:36" (1/1) ... [2022-07-13 14:55:36,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:36" (1/1) ... [2022-07-13 14:55:36,968 INFO L137 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 102 [2022-07-13 14:55:36,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 14:55:36,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 14:55:36,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 14:55:36,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 14:55:36,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:36" (1/1) ... [2022-07-13 14:55:36,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:36" (1/1) ... [2022-07-13 14:55:36,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:36" (1/1) ... [2022-07-13 14:55:36,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:36" (1/1) ... [2022-07-13 14:55:36,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:36" (1/1) ... [2022-07-13 14:55:37,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:36" (1/1) ... [2022-07-13 14:55:37,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:36" (1/1) ... [2022-07-13 14:55:37,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 14:55:37,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 14:55:37,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 14:55:37,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 14:55:37,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:36" (1/1) ... [2022-07-13 14:55:37,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:55:37,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 14:55:37,048 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) [2022-07-13 14:55:37,088 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 [2022-07-13 14:55:37,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 14:55:37,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 14:55:37,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 14:55:37,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-13 14:55:37,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 14:55:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-13 14:55:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 14:55:37,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 14:55:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 14:55:37,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 14:55:37,160 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 14:55:37,162 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 14:55:37,411 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 14:55:37,415 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 14:55:37,415 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2022-07-13 14:55:37,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:55:37 BoogieIcfgContainer [2022-07-13 14:55:37,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 14:55:37,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 14:55:37,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 14:55:37,430 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 14:55:37,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:55:36" (1/3) ... [2022-07-13 14:55:37,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eab392b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:55:37, skipping insertion in model container [2022-07-13 14:55:37,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:36" (2/3) ... [2022-07-13 14:55:37,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eab392b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:55:37, skipping insertion in model container [2022-07-13 14:55:37,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:55:37" (3/3) ... [2022-07-13 14:55:37,432 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072d.c [2022-07-13 14:55:37,443 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 14:55:37,443 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 14:55:37,485 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 14:55:37,495 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@274c0c98, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6403caa0 [2022-07-13 14:55:37,496 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 14:55:37,499 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 27 states have (on average 1.6666666666666667) internal successors, (45), 28 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:55:37,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 14:55:37,505 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:55:37,505 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:55:37,506 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:55:37,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:55:37,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1236259765, now seen corresponding path program 1 times [2022-07-13 14:55:37,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:55:37,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723700932] [2022-07-13 14:55:37,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:55:37,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:55:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:55:37,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:55:37,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 14:55:37,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723700932] [2022-07-13 14:55:37,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723700932] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:55:37,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:55:37,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 14:55:37,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071366505] [2022-07-13 14:55:37,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:55:37,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 14:55:37,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 14:55:37,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 14:55:37,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:55:37,665 INFO L87 Difference]: Start difference. First operand has 29 states, 27 states have (on average 1.6666666666666667) internal successors, (45), 28 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:55:37,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:55:37,682 INFO L93 Difference]: Finished difference Result 56 states and 88 transitions. [2022-07-13 14:55:37,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 14:55:37,684 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-13 14:55:37,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:55:37,690 INFO L225 Difference]: With dead ends: 56 [2022-07-13 14:55:37,691 INFO L226 Difference]: Without dead ends: 26 [2022-07-13 14:55:37,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:55:37,696 INFO L413 NwaCegarLoop]: 34 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, 34 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 [2022-07-13 14:55:37,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 14:55:37,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-07-13 14:55:37,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-07-13 14:55:37,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:55:37,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2022-07-13 14:55:37,723 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 11 [2022-07-13 14:55:37,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:55:37,723 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-07-13 14:55:37,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:55:37,724 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-07-13 14:55:37,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-13 14:55:37,725 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:55:37,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:55:37,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 14:55:37,725 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:55:37,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:55:37,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1856180690, now seen corresponding path program 1 times [2022-07-13 14:55:37,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:55:37,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559200797] [2022-07-13 14:55:37,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:55:37,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:55:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:55:37,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:55:37,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 14:55:37,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559200797] [2022-07-13 14:55:37,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559200797] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:55:37,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:55:37,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 14:55:37,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117508687] [2022-07-13 14:55:37,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:55:37,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 14:55:37,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 14:55:37,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 14:55:37,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 14:55:37,808 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:55:37,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:55:37,849 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2022-07-13 14:55:37,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 14:55:37,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-07-13 14:55:37,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:55:37,851 INFO L225 Difference]: With dead ends: 54 [2022-07-13 14:55:37,851 INFO L226 Difference]: Without dead ends: 41 [2022-07-13 14:55:37,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 14:55:37,852 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 29 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:55:37,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 73 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 14:55:37,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-07-13 14:55:37,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2022-07-13 14:55:37,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:55:37,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2022-07-13 14:55:37,857 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 12 [2022-07-13 14:55:37,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:55:37,857 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-07-13 14:55:37,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:55:37,857 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2022-07-13 14:55:37,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-13 14:55:37,858 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:55:37,858 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:55:37,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 14:55:37,858 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:55:37,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:55:37,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1128631073, now seen corresponding path program 1 times [2022-07-13 14:55:37,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:55:37,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041661997] [2022-07-13 14:55:37,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:55:37,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:55:37,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 14:55:37,914 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 14:55:37,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 14:55:37,945 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 14:55:37,945 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 14:55:37,946 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 14:55:37,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 14:55:37,949 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-13 14:55:37,951 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 14:55:37,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:55:37 BoogieIcfgContainer [2022-07-13 14:55:37,967 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 14:55:37,968 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 14:55:37,968 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 14:55:37,968 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 14:55:37,969 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:55:37" (3/4) ... [2022-07-13 14:55:37,971 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 14:55:37,971 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 14:55:37,971 INFO L158 Benchmark]: Toolchain (without parser) took 1334.28ms. Allocated memory was 104.9MB in the beginning and 163.6MB in the end (delta: 58.7MB). Free memory was 49.0MB in the beginning and 131.9MB in the end (delta: -82.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:55:37,972 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 104.9MB. Free memory is still 65.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:55:37,972 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.21ms. Allocated memory was 104.9MB in the beginning and 163.6MB in the end (delta: 58.7MB). Free memory was 48.8MB in the beginning and 138.4MB in the end (delta: -89.5MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2022-07-13 14:55:37,976 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.81ms. Allocated memory is still 163.6MB. Free memory was 138.4MB in the beginning and 135.8MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 14:55:37,978 INFO L158 Benchmark]: Boogie Preprocessor took 42.19ms. Allocated memory is still 163.6MB. Free memory was 135.8MB in the beginning and 133.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:55:37,979 INFO L158 Benchmark]: RCFGBuilder took 404.55ms. Allocated memory is still 163.6MB. Free memory was 133.7MB in the beginning and 116.4MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-13 14:55:37,979 INFO L158 Benchmark]: TraceAbstraction took 549.60ms. Allocated memory is still 163.6MB. Free memory was 115.9MB in the beginning and 131.9MB in the end (delta: -16.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:55:37,980 INFO L158 Benchmark]: Witness Printer took 2.80ms. Allocated memory is still 163.6MB. Free memory is still 131.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:55:37,982 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 104.9MB. Free memory is still 65.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.21ms. Allocated memory was 104.9MB in the beginning and 163.6MB in the end (delta: 58.7MB). Free memory was 48.8MB in the beginning and 138.4MB in the end (delta: -89.5MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.81ms. Allocated memory is still 163.6MB. Free memory was 138.4MB in the beginning and 135.8MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.19ms. Allocated memory is still 163.6MB. Free memory was 135.8MB in the beginning and 133.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 404.55ms. Allocated memory is still 163.6MB. Free memory was 133.7MB in the beginning and 116.4MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 549.60ms. Allocated memory is still 163.6MB. Free memory was 115.9MB in the beginning and 131.9MB in the end (delta: -16.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.80ms. Allocated memory is still 163.6MB. Free memory is still 131.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 69]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 68, overapproximation of someUnaryFLOAToperation at line 64, overapproximation of bitwiseAnd at line 22. Possible FailurePath: [L64] float x = -0.0f; [L65] CALL, EXPR trunc_float(x) [L15] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=4294967297, x=4294967297] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (w) = gf_u.word [L21] signbit = w & 0x80000000 VAL [\old(x)=4294967297, signbit=0, w=0, x=4294967297] [L22] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=4294967297, exponent_less_127=-127, signbit=0, w=0, x=4294967297] [L23] COND TRUE exponent_less_127 < 23 VAL [\old(x)=4294967297, exponent_less_127=-127, signbit=0, w=0, x=4294967297] [L24] COND TRUE exponent_less_127 < 0 VAL [\old(x)=4294967297, exponent_less_127=-127, signbit=0, w=0, x=4294967297] [L27] ieee_float_shape_type sf_u; [L28] sf_u.word = (signbit) [L29] EXPR sf_u.value [L29] (x) = sf_u.value [L42] return x; VAL [\old(x)=4294967297, \result=4294967298, exponent_less_127=-127, signbit=0, w=0, x=4294967298] [L65] RET, EXPR trunc_float(x) [L65] float res = trunc_float(x); [L68] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=4294967298, res == -0.0f && __signbit_float(res) == 1=0, x=4294967297] [L68] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L69] reach_error() VAL [res=4294967298, x=4294967297] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 107 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 45 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 62 mSDtfsCounter, 19 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 31 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 [2022-07-13 14:55:38,006 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/float_req_bl_1072d.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 617ff69384da5814b2b527d10c4fa0e27490c5a4838f31ba8705b37c822dda78 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 14:55:39,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 14:55:39,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 14:55:39,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 14:55:39,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 14:55:39,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 14:55:39,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 14:55:39,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 14:55:39,786 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 14:55:39,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 14:55:39,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 14:55:39,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 14:55:39,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 14:55:39,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 14:55:39,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 14:55:39,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 14:55:39,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 14:55:39,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 14:55:39,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 14:55:39,804 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 14:55:39,805 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 14:55:39,806 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 14:55:39,807 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 14:55:39,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 14:55:39,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 14:55:39,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 14:55:39,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 14:55:39,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 14:55:39,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 14:55:39,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 14:55:39,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 14:55:39,816 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 14:55:39,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 14:55:39,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 14:55:39,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 14:55:39,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 14:55:39,819 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 14:55:39,819 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 14:55:39,819 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 14:55:39,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 14:55:39,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 14:55:39,821 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 14:55:39,827 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-13 14:55:39,851 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 14:55:39,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 14:55:39,852 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 14:55:39,852 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 14:55:39,853 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 14:55:39,853 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 14:55:39,853 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 14:55:39,853 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 14:55:39,853 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 14:55:39,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 14:55:39,854 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 14:55:39,854 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 14:55:39,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 14:55:39,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 14:55:39,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 14:55:39,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 14:55:39,855 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-13 14:55:39,855 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-13 14:55:39,855 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-13 14:55:39,855 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 14:55:39,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 14:55:39,855 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 14:55:39,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 14:55:39,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 14:55:39,855 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 14:55:39,855 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 14:55:39,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:55:39,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 14:55:39,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 14:55:39,856 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 14:55:39,856 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-13 14:55:39,856 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-13 14:55:39,856 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 14:55:39,856 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 14:55:39,856 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 14:55:39,856 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-13 14:55:39,857 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617ff69384da5814b2b527d10c4fa0e27490c5a4838f31ba8705b37c822dda78 [2022-07-13 14:55:40,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 14:55:40,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 14:55:40,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 14:55:40,158 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 14:55:40,158 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 14:55:40,160 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1072d.c [2022-07-13 14:55:40,206 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71027d014/1020e0f160864621bb19c3016d1d2e73/FLAGfc18d75da [2022-07-13 14:55:40,526 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 14:55:40,526 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1072d.c [2022-07-13 14:55:40,531 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71027d014/1020e0f160864621bb19c3016d1d2e73/FLAGfc18d75da [2022-07-13 14:55:40,957 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71027d014/1020e0f160864621bb19c3016d1d2e73 [2022-07-13 14:55:40,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 14:55:40,960 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 14:55:40,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 14:55:40,961 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 14:55:40,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 14:55:40,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:55:40" (1/1) ... [2022-07-13 14:55:40,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19fdb20f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:40, skipping insertion in model container [2022-07-13 14:55:40,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:55:40" (1/1) ... [2022-07-13 14:55:40,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 14:55:40,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:55:41,070 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/float_req_bl_1072d.c[1573,1586] [2022-07-13 14:55:41,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:55:41,087 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 14:55:41,131 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/float_req_bl_1072d.c[1573,1586] [2022-07-13 14:55:41,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:55:41,141 INFO L208 MainTranslator]: Completed translation [2022-07-13 14:55:41,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:41 WrapperNode [2022-07-13 14:55:41,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 14:55:41,143 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 14:55:41,143 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 14:55:41,143 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 14:55:41,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:41" (1/1) ... [2022-07-13 14:55:41,156 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:41" (1/1) ... [2022-07-13 14:55:41,170 INFO L137 Inliner]: procedures = 19, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 90 [2022-07-13 14:55:41,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 14:55:41,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 14:55:41,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 14:55:41,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 14:55:41,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:41" (1/1) ... [2022-07-13 14:55:41,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:41" (1/1) ... [2022-07-13 14:55:41,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:41" (1/1) ... [2022-07-13 14:55:41,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:41" (1/1) ... [2022-07-13 14:55:41,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:41" (1/1) ... [2022-07-13 14:55:41,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:41" (1/1) ... [2022-07-13 14:55:41,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:41" (1/1) ... [2022-07-13 14:55:41,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 14:55:41,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 14:55:41,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 14:55:41,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 14:55:41,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:41" (1/1) ... [2022-07-13 14:55:41,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:55:41,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 14:55:41,245 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) [2022-07-13 14:55:41,248 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 [2022-07-13 14:55:41,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 14:55:41,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-13 14:55:41,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 14:55:41,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-07-13 14:55:41,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-13 14:55:41,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 14:55:41,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 14:55:41,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-07-13 14:55:41,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-13 14:55:41,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 14:55:41,343 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 14:55:41,345 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 14:55:41,487 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 14:55:41,497 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 14:55:41,497 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2022-07-13 14:55:41,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:55:41 BoogieIcfgContainer [2022-07-13 14:55:41,508 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 14:55:41,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 14:55:41,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 14:55:41,511 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 14:55:41,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:55:40" (1/3) ... [2022-07-13 14:55:41,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@792c5bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:55:41, skipping insertion in model container [2022-07-13 14:55:41,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:55:41" (2/3) ... [2022-07-13 14:55:41,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@792c5bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:55:41, skipping insertion in model container [2022-07-13 14:55:41,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:55:41" (3/3) ... [2022-07-13 14:55:41,513 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072d.c [2022-07-13 14:55:41,529 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 14:55:41,529 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 14:55:41,568 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 14:55:41,573 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@5b60192, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@c78f621 [2022-07-13 14:55:41,573 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 14:55:41,585 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:55:41,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-13 14:55:41,590 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:55:41,591 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:55:41,591 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:55:41,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:55:41,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1945115165, now seen corresponding path program 1 times [2022-07-13 14:55:41,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:55:41,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1802203357] [2022-07-13 14:55:41,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:55:41,631 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:55:41,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:55:41,634 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) [2022-07-13 14:55:41,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-13 14:55:41,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:55:41,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-13 14:55:41,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:55:41,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:55:41,762 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:55:41,762 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:55:41,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1802203357] [2022-07-13 14:55:41,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1802203357] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:55:41,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:55:41,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 14:55:41,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969293706] [2022-07-13 14:55:41,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:55:41,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 14:55:41,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:55:41,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 14:55:41,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:55:41,798 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:55:41,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:55:41,813 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2022-07-13 14:55:41,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 14:55:41,815 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-13 14:55:41,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:55:41,824 INFO L225 Difference]: With dead ends: 48 [2022-07-13 14:55:41,824 INFO L226 Difference]: Without dead ends: 22 [2022-07-13 14:55:41,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 14:55:41,832 INFO L413 NwaCegarLoop]: 28 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, 28 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 [2022-07-13 14:55:41,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 14:55:41,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-07-13 14:55:41,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-07-13 14:55:41,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:55:41,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-07-13 14:55:41,857 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 10 [2022-07-13 14:55:41,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:55:41,858 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-07-13 14:55:41,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:55:41,858 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-07-13 14:55:41,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 14:55:41,859 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:55:41,859 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:55:41,867 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-13 14:55:42,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:55:42,062 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:55:42,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:55:42,063 INFO L85 PathProgramCache]: Analyzing trace with hash -390192032, now seen corresponding path program 1 times [2022-07-13 14:55:42,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:55:42,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [761158100] [2022-07-13 14:55:42,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:55:42,065 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:55:42,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:55:42,066 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) [2022-07-13 14:55:42,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-13 14:55:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:55:42,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 14:55:42,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:55:42,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:55:42,195 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:55:42,195 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:55:42,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [761158100] [2022-07-13 14:55:42,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [761158100] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:55:42,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:55:42,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 14:55:42,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54620522] [2022-07-13 14:55:42,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:55:42,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 14:55:42,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:55:42,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 14:55:42,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 14:55:42,198 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:55:42,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:55:42,240 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2022-07-13 14:55:42,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 14:55:42,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-13 14:55:42,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:55:42,243 INFO L225 Difference]: With dead ends: 32 [2022-07-13 14:55:42,243 INFO L226 Difference]: Without dead ends: 21 [2022-07-13 14:55:42,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 14:55:42,245 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 4 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:55:42,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 64 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 6 Unchecked, 0.0s Time] [2022-07-13 14:55:42,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-07-13 14:55:42,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-07-13 14:55:42,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:55:42,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2022-07-13 14:55:42,256 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 11 [2022-07-13 14:55:42,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:55:42,256 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2022-07-13 14:55:42,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:55:42,257 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-07-13 14:55:42,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-13 14:55:42,262 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:55:42,262 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:55:42,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-13 14:55:42,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:55:42,470 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:55:42,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:55:42,473 INFO L85 PathProgramCache]: Analyzing trace with hash -2105213232, now seen corresponding path program 1 times [2022-07-13 14:55:42,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:55:42,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440425513] [2022-07-13 14:55:42,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:55:42,475 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:55:42,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:55:42,477 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) [2022-07-13 14:55:42,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-13 14:55:42,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:55:42,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 14:55:42,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:55:42,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:55:42,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:55:42,567 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:55:42,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440425513] [2022-07-13 14:55:42,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1440425513] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:55:42,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:55:42,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 14:55:42,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663547891] [2022-07-13 14:55:42,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:55:42,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 14:55:42,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:55:42,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 14:55:42,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 14:55:42,569 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:55:42,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:55:42,594 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2022-07-13 14:55:42,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 14:55:42,595 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-07-13 14:55:42,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:55:42,595 INFO L225 Difference]: With dead ends: 31 [2022-07-13 14:55:42,595 INFO L226 Difference]: Without dead ends: 19 [2022-07-13 14:55:42,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 14:55:42,596 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 4 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:55:42,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 53 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 4 Unchecked, 0.0s Time] [2022-07-13 14:55:42,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-13 14:55:42,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-13 14:55:42,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:55:42,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2022-07-13 14:55:42,599 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 14 [2022-07-13 14:55:42,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:55:42,599 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2022-07-13 14:55:42,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:55:42,599 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2022-07-13 14:55:42,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-13 14:55:42,600 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:55:42,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:55:42,611 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-07-13 14:55:42,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:55:42,810 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:55:42,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:55:42,810 INFO L85 PathProgramCache]: Analyzing trace with hash -675711906, now seen corresponding path program 1 times [2022-07-13 14:55:42,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:55:42,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1783106387] [2022-07-13 14:55:42,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:55:42,811 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:55:42,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:55:42,816 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) [2022-07-13 14:55:42,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-13 14:55:42,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:55:42,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-13 14:55:42,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:55:42,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:55:42,913 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:55:42,914 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:55:42,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1783106387] [2022-07-13 14:55:42,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1783106387] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:55:42,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:55:42,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 14:55:42,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062730064] [2022-07-13 14:55:42,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:55:42,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 14:55:42,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:55:42,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 14:55:42,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 14:55:42,918 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:55:42,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:55:42,925 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2022-07-13 14:55:42,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 14:55:42,926 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-07-13 14:55:42,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:55:42,926 INFO L225 Difference]: With dead ends: 22 [2022-07-13 14:55:42,926 INFO L226 Difference]: Without dead ends: 19 [2022-07-13 14:55:42,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 14:55:42,927 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 4 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:55:42,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 56 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 10 Unchecked, 0.0s Time] [2022-07-13 14:55:42,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-13 14:55:42,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-13 14:55:42,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0) internal successors, (18), 18 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:55:42,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2022-07-13 14:55:42,930 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 14 [2022-07-13 14:55:42,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:55:42,930 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2022-07-13 14:55:42,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:55:42,930 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2022-07-13 14:55:42,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-13 14:55:42,931 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:55:42,931 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 14:55:42,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-13 14:55:43,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:55:43,142 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:55:43,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:55:43,143 INFO L85 PathProgramCache]: Analyzing trace with hash 438125939, now seen corresponding path program 1 times [2022-07-13 14:55:43,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:55:43,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1182006299] [2022-07-13 14:55:43,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:55:43,143 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:55:43,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:55:43,144 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) [2022-07-13 14:55:43,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-13 14:55:43,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 14:55:43,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 26 conjunts are in the unsatisfiable core [2022-07-13 14:55:43,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 14:55:43,253 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-13 14:55:43,320 INFO L356 Elim1Store]: treesize reduction 19, result has 26.9 percent of original size [2022-07-13 14:55:43,320 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2022-07-13 14:55:43,444 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-07-13 14:55:43,444 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 63 treesize of output 31 [2022-07-13 14:55:43,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 14:55:43,531 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 14:55:43,531 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-13 14:55:43,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1182006299] [2022-07-13 14:55:43,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1182006299] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 14:55:43,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 14:55:43,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 14:55:43,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276548618] [2022-07-13 14:55:43,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 14:55:43,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 14:55:43,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-13 14:55:43,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 14:55:43,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-07-13 14:55:43,532 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:55:43,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 14:55:43,582 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2022-07-13 14:55:43,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 14:55:43,582 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-13 14:55:43,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 14:55:43,582 INFO L225 Difference]: With dead ends: 19 [2022-07-13 14:55:43,582 INFO L226 Difference]: Without dead ends: 0 [2022-07-13 14:55:43,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-07-13 14:55:43,583 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 5 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 14:55:43,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 53 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 29 Unchecked, 0.0s Time] [2022-07-13 14:55:43,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-13 14:55:43,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-13 14:55:43,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:55:43,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-13 14:55:43,584 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2022-07-13 14:55:43,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 14:55:43,584 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 14:55:43,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:55:43,585 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-13 14:55:43,585 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-13 14:55:43,591 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 14:55:43,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-13 14:55:43,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:55:43,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-13 14:55:43,845 INFO L899 garLoopResultBuilder]: For program point L23(lines 23 41) no Hoare annotation was computed. [2022-07-13 14:55:43,846 INFO L899 garLoopResultBuilder]: For program point L23-1(lines 23 41) no Hoare annotation was computed. [2022-07-13 14:55:43,846 INFO L899 garLoopResultBuilder]: For program point L48-1(lines 48 52) no Hoare annotation was computed. [2022-07-13 14:55:43,846 INFO L895 garLoopResultBuilder]: At program point L48-2(lines 48 52) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short10#1| (exists ((|v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8| (_ BitVec 32)) (|v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8|) (_ bv0 32))) (.cse1 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11|) (_ bv0 32)))) (and (= .cse0 (bvand .cse1 (_ bv2147483648 32))) (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) |ULTIMATE.start___signbit_float_~x#1|) (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))))) [2022-07-13 14:55:43,846 INFO L899 garLoopResultBuilder]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2022-07-13 14:55:43,846 INFO L902 garLoopResultBuilder]: At program point L73(lines 57 74) the Hoare annotation is: true [2022-07-13 14:55:43,846 INFO L899 garLoopResultBuilder]: For program point L69(line 69) no Hoare annotation was computed. [2022-07-13 14:55:43,847 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-13 14:55:43,847 INFO L899 garLoopResultBuilder]: For program point L32-1(lines 32 36) no Hoare annotation was computed. [2022-07-13 14:55:43,847 INFO L895 garLoopResultBuilder]: At program point L32-2(lines 32 36) the Hoare annotation is: false [2022-07-13 14:55:43,847 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-13 14:55:43,847 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-13 14:55:43,847 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 37) no Hoare annotation was computed. [2022-07-13 14:55:43,847 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 69) no Hoare annotation was computed. [2022-07-13 14:55:43,847 INFO L899 garLoopResultBuilder]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2022-07-13 14:55:43,848 INFO L895 garLoopResultBuilder]: At program point L16-2(lines 16 20) the Hoare annotation is: (= (fp.neg (_ +zero 8 24)) |ULTIMATE.start_trunc_float_~x#1|) [2022-07-13 14:55:43,848 INFO L899 garLoopResultBuilder]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2022-07-13 14:55:43,848 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-13 14:55:43,848 INFO L895 garLoopResultBuilder]: At program point L54(lines 45 55) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short10#1| (= |ULTIMATE.start___signbit_float_#res#1| (_ bv1 32))) [2022-07-13 14:55:43,848 INFO L895 garLoopResultBuilder]: At program point L42(lines 14 43) the Hoare annotation is: (exists ((|v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8| (_ BitVec 32)) (|v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11|) (_ bv0 32))) (.cse0 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8|) (_ bv0 32)))) (and (= .cse0 (bvand .cse1 (_ bv2147483648 32))) (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) |ULTIMATE.start_trunc_float_#res#1|)))) [2022-07-13 14:55:43,848 INFO L899 garLoopResultBuilder]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2022-07-13 14:55:43,848 INFO L895 garLoopResultBuilder]: At program point L26-2(lines 26 30) the Hoare annotation is: (exists ((|v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11|) (_ bv0 32)))) (and (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (= |ULTIMATE.start_trunc_float_~signbit~0#1| (bvand .cse0 (_ bv2147483648 32)))))) [2022-07-13 14:55:43,848 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 40) no Hoare annotation was computed. [2022-07-13 14:55:43,849 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2022-07-13 14:55:43,849 INFO L899 garLoopResultBuilder]: For program point L68-2(lines 68 71) no Hoare annotation was computed. [2022-07-13 14:55:43,851 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-13 14:55:43,852 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 14:55:43,870 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,870 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,870 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,873 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,873 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,873 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,873 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,874 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,874 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,874 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,874 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,874 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,875 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,875 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,875 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,875 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,875 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,875 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,875 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,876 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,876 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,876 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,876 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,877 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,877 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,877 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,877 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,877 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,877 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,878 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,878 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,878 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,878 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,878 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,878 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:55:43 BoogieIcfgContainer [2022-07-13 14:55:43,879 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 14:55:43,879 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 14:55:43,879 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 14:55:43,880 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 14:55:43,880 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:55:41" (3/4) ... [2022-07-13 14:55:43,882 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 14:55:43,888 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-07-13 14:55:43,888 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-07-13 14:55:43,888 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-13 14:55:43,888 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 14:55:43,917 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11 : bv32 :: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][22:0]) && signbit == ~bvand32(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32], 2147483648bv32)) [2022-07-13 14:55:43,917 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8 : bv32, v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11 : bv32 :: (unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32] == ~bvand32(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32], 2147483648bv32) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][22:0])) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32][22:0]) == \result) [2022-07-13 14:55:43,917 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: aux-res == -0.0f && __signbit_float(res) == 1-aux && (\exists v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8 : bv32, v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11 : bv32 :: (unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32] == ~bvand32(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32], 2147483648bv32) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32][22:0]) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][22:0])) [2022-07-13 14:55:43,918 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: aux-res == -0.0f && __signbit_float(res) == 1-aux && \result == 1bv32 [2022-07-13 14:55:43,936 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 14:55:43,936 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 14:55:43,936 INFO L158 Benchmark]: Toolchain (without parser) took 2976.70ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 45.4MB in the beginning and 53.4MB in the end (delta: -8.0MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2022-07-13 14:55:43,937 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 65.0MB. Free memory was 47.1MB in the beginning and 47.1MB in the end (delta: 49.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:55:43,937 INFO L158 Benchmark]: CACSL2BoogieTranslator took 181.73ms. Allocated memory is still 65.0MB. Free memory was 45.2MB in the beginning and 48.1MB in the end (delta: -2.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-13 14:55:43,937 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.12ms. Allocated memory is still 65.0MB. Free memory was 47.9MB in the beginning and 46.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:55:43,937 INFO L158 Benchmark]: Boogie Preprocessor took 50.22ms. Allocated memory is still 65.0MB. Free memory was 46.2MB in the beginning and 44.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:55:43,938 INFO L158 Benchmark]: RCFGBuilder took 283.42ms. Allocated memory is still 65.0MB. Free memory was 44.5MB in the beginning and 32.9MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-13 14:55:43,938 INFO L158 Benchmark]: TraceAbstraction took 2369.92ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 32.4MB in the beginning and 56.3MB in the end (delta: -24.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:55:43,938 INFO L158 Benchmark]: Witness Printer took 56.69ms. Allocated memory is still 81.8MB. Free memory was 56.3MB in the beginning and 53.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:55:43,939 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 65.0MB. Free memory was 47.1MB in the beginning and 47.1MB in the end (delta: 49.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 181.73ms. Allocated memory is still 65.0MB. Free memory was 45.2MB in the beginning and 48.1MB in the end (delta: -2.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.12ms. Allocated memory is still 65.0MB. Free memory was 47.9MB in the beginning and 46.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.22ms. Allocated memory is still 65.0MB. Free memory was 46.2MB in the beginning and 44.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 283.42ms. Allocated memory is still 65.0MB. Free memory was 44.5MB in the beginning and 32.9MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2369.92ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 32.4MB in the beginning and 56.3MB in the end (delta: -24.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 56.69ms. Allocated memory is still 81.8MB. Free memory was 56.3MB in the beginning and 53.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 69]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 254 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 49 IncrementalHoareTripleChecker+Unchecked, 171 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 83 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 31, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 13 NumberOfFragments, 162 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 62 ConstructedInterpolants, 21 QuantifiedInterpolants, 734 SizeOfPredicates, 32 NumberOfNonLiveVariables, 247 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: aux-res == -0.0f && __signbit_float(res) == 1-aux && \result == 1bv32 - InvariantResult [Line: 48]: Loop Invariant [2022-07-13 14:55:43,948 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,948 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,948 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,949 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,949 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,949 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,949 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,949 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,949 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,950 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,950 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,950 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,950 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,950 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,950 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,950 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] Derived loop invariant: aux-res == -0.0f && __signbit_float(res) == 1-aux && (\exists v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8 : bv32, v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11 : bv32 :: (unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32] == ~bvand32(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32], 2147483648bv32) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32][22:0]) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][22:0])) - InvariantResult [Line: 26]: Loop Invariant [2022-07-13 14:55:43,951 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,951 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,951 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,951 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,951 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,951 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,952 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,952 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] Derived loop invariant: (\exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11 : bv32 :: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][22:0]) && signbit == ~bvand32(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32], 2147483648bv32)) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant [2022-07-13 14:55:43,952 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,952 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,953 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,953 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,953 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,953 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,953 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,953 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,954 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,954 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,954 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,954 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,954 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2022-07-13 14:55:43,954 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,954 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] [2022-07-13 14:55:43,954 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8,QUANTIFIED] Derived loop invariant: (\exists v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8 : bv32, v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11 : bv32 :: (unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32] == ~bvand32(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32], 2147483648bv32) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][22:0])) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_8][0bv32][22:0]) == \result) RESULT: Ultimate proved your program to be correct! [2022-07-13 14:55:43,984 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 Result: TRUE