./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1052d.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1052d.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 5e916ae9c48effac9b6c4a1d1191ee8fa3cb5babfe7e8bb0aead8328ceda8c4a --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 07:42:18,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 07:42:18,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 07:42:18,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 07:42:18,510 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 07:42:18,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 07:42:18,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 07:42:18,517 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 07:42:18,519 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 07:42:18,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 07:42:18,524 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 07:42:18,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 07:42:18,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 07:42:18,528 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 07:42:18,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 07:42:18,533 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 07:42:18,534 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 07:42:18,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 07:42:18,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 07:42:18,543 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 07:42:18,544 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 07:42:18,545 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 07:42:18,546 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 07:42:18,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 07:42:18,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 07:42:18,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 07:42:18,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 07:42:18,556 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 07:42:18,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 07:42:18,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 07:42:18,557 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 07:42:18,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 07:42:18,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 07:42:18,560 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 07:42:18,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 07:42:18,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 07:42:18,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 07:42:18,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 07:42:18,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 07:42:18,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 07:42:18,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 07:42:18,565 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 07:42:18,595 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 07:42:18,595 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 07:42:18,596 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 07:42:18,596 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 07:42:18,597 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 07:42:18,597 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 07:42:18,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 07:42:18,598 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 07:42:18,598 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 07:42:18,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 07:42:18,599 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 07:42:18,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 07:42:18,599 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 07:42:18,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 07:42:18,600 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 07:42:18,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 07:42:18,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 07:42:18,600 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 07:42:18,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 07:42:18,600 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 07:42:18,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 07:42:18,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 07:42:18,601 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 07:42:18,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 07:42:18,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:42:18,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 07:42:18,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 07:42:18,607 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 07:42:18,607 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 07:42:18,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 07:42:18,608 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 07:42:18,608 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 07:42:18,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 07:42:18,609 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 07:42:18,609 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e916ae9c48effac9b6c4a1d1191ee8fa3cb5babfe7e8bb0aead8328ceda8c4a [2021-12-17 07:42:18,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 07:42:18,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 07:42:18,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 07:42:18,852 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 07:42:18,853 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 07:42:18,854 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1052d.c [2021-12-17 07:42:18,904 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64e205d04/8d5e0e5d5f0d463f8c12357c0a7d54d9/FLAG04616887f [2021-12-17 07:42:19,274 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 07:42:19,274 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1052d.c [2021-12-17 07:42:19,280 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64e205d04/8d5e0e5d5f0d463f8c12357c0a7d54d9/FLAG04616887f [2021-12-17 07:42:19,289 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64e205d04/8d5e0e5d5f0d463f8c12357c0a7d54d9 [2021-12-17 07:42:19,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 07:42:19,292 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 07:42:19,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 07:42:19,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 07:42:19,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 07:42:19,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:42:19" (1/1) ... [2021-12-17 07:42:19,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db30e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:42:19, skipping insertion in model container [2021-12-17 07:42:19,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:42:19" (1/1) ... [2021-12-17 07:42:19,304 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 07:42:19,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 07:42:19,482 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1052d.c[2259,2272] [2021-12-17 07:42:19,485 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 07:42:19,490 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 07:42:19,518 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1052d.c[2259,2272] [2021-12-17 07:42:19,518 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 07:42:19,527 INFO L208 MainTranslator]: Completed translation [2021-12-17 07:42:19,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:42:19 WrapperNode [2021-12-17 07:42:19,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 07:42:19,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 07:42:19,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 07:42:19,529 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 07:42:19,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:42:19" (1/1) ... [2021-12-17 07:42:19,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:42:19" (1/1) ... [2021-12-17 07:42:19,562 INFO L137 Inliner]: procedures = 16, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 117 [2021-12-17 07:42:19,562 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 07:42:19,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 07:42:19,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 07:42:19,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 07:42:19,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:42:19" (1/1) ... [2021-12-17 07:42:19,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:42:19" (1/1) ... [2021-12-17 07:42:19,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:42:19" (1/1) ... [2021-12-17 07:42:19,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:42:19" (1/1) ... [2021-12-17 07:42:19,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:42:19" (1/1) ... [2021-12-17 07:42:19,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:42:19" (1/1) ... [2021-12-17 07:42:19,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:42:19" (1/1) ... [2021-12-17 07:42:19,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 07:42:19,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 07:42:19,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 07:42:19,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 07:42:19,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:42:19" (1/1) ... [2021-12-17 07:42:19,606 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:42:19,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 07:42:19,626 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-17 07:42:19,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-17 07:42:19,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 07:42:19,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 07:42:19,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 07:42:19,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-17 07:42:19,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-17 07:42:19,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-17 07:42:19,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 07:42:19,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 07:42:19,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-17 07:42:19,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 07:42:19,718 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 07:42:19,719 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 07:42:19,870 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 07:42:19,875 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 07:42:19,883 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-17 07:42:19,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:42:19 BoogieIcfgContainer [2021-12-17 07:42:19,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 07:42:19,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 07:42:19,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 07:42:19,889 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 07:42:19,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 07:42:19" (1/3) ... [2021-12-17 07:42:19,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6450d720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 07:42:19, skipping insertion in model container [2021-12-17 07:42:19,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:42:19" (2/3) ... [2021-12-17 07:42:19,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6450d720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 07:42:19, skipping insertion in model container [2021-12-17 07:42:19,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:42:19" (3/3) ... [2021-12-17 07:42:19,891 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052d.c [2021-12-17 07:42:19,895 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 07:42:19,895 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 07:42:19,940 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 07:42:19,953 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 07:42:19,953 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 07:42:19,964 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 36 states have (on average 1.6666666666666667) internal successors, (60), 37 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:42:19,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-17 07:42:19,976 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:42:19,977 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:42:19,977 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:42:19,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:42:19,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1930029915, now seen corresponding path program 1 times [2021-12-17 07:42:19,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 07:42:19,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634288758] [2021-12-17 07:42:19,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:42:19,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 07:42:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:42:20,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:42:20,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 07:42:20,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634288758] [2021-12-17 07:42:20,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634288758] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:42:20,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:42:20,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 07:42:20,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367402483] [2021-12-17 07:42:20,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:42:20,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 07:42:20,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 07:42:20,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 07:42:20,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 07:42:20,156 INFO L87 Difference]: Start difference. First operand has 38 states, 36 states have (on average 1.6666666666666667) internal successors, (60), 37 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:42:20,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:42:20,176 INFO L93 Difference]: Finished difference Result 74 states and 118 transitions. [2021-12-17 07:42:20,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 07:42:20,178 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-17 07:42:20,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:42:20,184 INFO L225 Difference]: With dead ends: 74 [2021-12-17 07:42:20,185 INFO L226 Difference]: Without dead ends: 35 [2021-12-17 07:42:20,204 INFO L932 BasicCegarLoop]: 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 [2021-12-17 07:42:20,210 INFO L933 BasicCegarLoop]: 53 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, 53 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 [2021-12-17 07:42:20,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 07:42:20,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-12-17 07:42:20,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-12-17 07:42:20,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 34 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:42:20,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 50 transitions. [2021-12-17 07:42:20,240 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 50 transitions. Word has length 11 [2021-12-17 07:42:20,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:42:20,241 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 50 transitions. [2021-12-17 07:42:20,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:42:20,241 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2021-12-17 07:42:20,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-17 07:42:20,242 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:42:20,242 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:42:20,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 07:42:20,242 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:42:20,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:42:20,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1310108990, now seen corresponding path program 1 times [2021-12-17 07:42:20,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 07:42:20,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74872475] [2021-12-17 07:42:20,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:42:20,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 07:42:20,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 07:42:20,283 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-17 07:42:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-17 07:42:20,321 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-17 07:42:20,322 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-17 07:42:20,323 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 07:42:20,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 07:42:20,328 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-17 07:42:20,333 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 07:42:20,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 07:42:20 BoogieIcfgContainer [2021-12-17 07:42:20,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 07:42:20,368 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 07:42:20,369 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 07:42:20,369 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 07:42:20,370 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:42:19" (3/4) ... [2021-12-17 07:42:20,373 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-17 07:42:20,373 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 07:42:20,375 INFO L158 Benchmark]: Toolchain (without parser) took 1081.68ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 62.7MB in the beginning and 81.6MB in the end (delta: -18.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 07:42:20,376 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 94.4MB. Free memory is still 50.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 07:42:20,377 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.29ms. Allocated memory is still 94.4MB. Free memory was 62.5MB in the beginning and 70.3MB in the end (delta: -7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-17 07:42:20,379 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.90ms. Allocated memory is still 94.4MB. Free memory was 70.3MB in the beginning and 68.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 07:42:20,380 INFO L158 Benchmark]: Boogie Preprocessor took 34.32ms. Allocated memory is still 94.4MB. Free memory was 68.3MB in the beginning and 67.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 07:42:20,383 INFO L158 Benchmark]: RCFGBuilder took 287.69ms. Allocated memory is still 94.4MB. Free memory was 67.1MB in the beginning and 54.1MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-17 07:42:20,384 INFO L158 Benchmark]: TraceAbstraction took 481.32ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 53.7MB in the beginning and 82.1MB in the end (delta: -28.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 07:42:20,384 INFO L158 Benchmark]: Witness Printer took 4.73ms. Allocated memory is still 113.2MB. Free memory was 82.1MB in the beginning and 81.6MB in the end (delta: 549.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 07:42:20,390 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 94.4MB. Free memory is still 50.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 233.29ms. Allocated memory is still 94.4MB. Free memory was 62.5MB in the beginning and 70.3MB in the end (delta: -7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.90ms. Allocated memory is still 94.4MB. Free memory was 70.3MB in the beginning and 68.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.32ms. Allocated memory is still 94.4MB. Free memory was 68.3MB in the beginning and 67.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 287.69ms. Allocated memory is still 94.4MB. Free memory was 67.1MB in the beginning and 54.1MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 481.32ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 53.7MB in the beginning and 82.1MB in the end (delta: -28.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.73ms. Allocated memory is still 113.2MB. Free memory was 82.1MB in the beginning and 81.6MB in the end (delta: 549.0kB). 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: 105]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of shiftRight at line 39, overapproximation of bitwiseOr at line 40, overapproximation of bitwiseAnd at line 27, overapproximation of someBinaryDOUBLEComparisonOperation at line 104. Possible FailurePath: [L16] static const double huge_floor = 1.0e300; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L100] double x = 0.0; [L101] CALL, EXPR floor_double(x) [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=0, i1=0, x=0] [L28] COND TRUE j0 < 20 VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=0, i1=0, j0=0, x=0] [L29] COND FALSE !(j0 < 0) [L39] i = (0x000fffff) >> j0 VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=0, i1=0, j0=0, x=0] [L40] COND TRUE ((i0 & i) | i1) == 0 [L41] return x; VAL [\old(x)=0, \result=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=0, i1=0, j0=0, x=0] [L101] RET, EXPR floor_double(x) [L101] double res = floor_double(x); [L104] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=0, res == 0.0 && __signbit_double(res) == 0=0, x=0] [L104] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L105] reach_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 53 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-17 07:42:20,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1052d.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 5e916ae9c48effac9b6c4a1d1191ee8fa3cb5babfe7e8bb0aead8328ceda8c4a --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 07:42:22,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 07:42:22,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 07:42:22,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 07:42:22,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 07:42:22,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 07:42:22,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 07:42:22,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 07:42:22,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 07:42:22,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 07:42:22,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 07:42:22,371 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 07:42:22,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 07:42:22,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 07:42:22,375 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 07:42:22,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 07:42:22,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 07:42:22,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 07:42:22,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 07:42:22,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 07:42:22,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 07:42:22,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 07:42:22,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 07:42:22,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 07:42:22,397 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 07:42:22,401 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 07:42:22,401 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 07:42:22,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 07:42:22,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 07:42:22,404 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 07:42:22,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 07:42:22,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 07:42:22,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 07:42:22,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 07:42:22,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 07:42:22,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 07:42:22,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 07:42:22,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 07:42:22,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 07:42:22,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 07:42:22,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 07:42:22,413 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-17 07:42:22,432 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 07:42:22,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 07:42:22,438 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 07:42:22,438 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 07:42:22,439 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 07:42:22,439 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 07:42:22,440 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 07:42:22,440 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 07:42:22,441 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 07:42:22,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 07:42:22,442 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 07:42:22,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 07:42:22,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 07:42:22,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 07:42:22,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 07:42:22,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 07:42:22,443 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-17 07:42:22,443 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-17 07:42:22,443 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-17 07:42:22,443 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 07:42:22,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 07:42:22,444 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 07:42:22,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 07:42:22,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 07:42:22,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 07:42:22,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 07:42:22,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:42:22,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 07:42:22,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 07:42:22,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 07:42:22,449 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-17 07:42:22,449 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-17 07:42:22,450 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 07:42:22,450 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 07:42:22,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 07:42:22,450 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 07:42:22,450 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-17 07:42:22,451 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e916ae9c48effac9b6c4a1d1191ee8fa3cb5babfe7e8bb0aead8328ceda8c4a [2021-12-17 07:42:22,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 07:42:22,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 07:42:22,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 07:42:22,787 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 07:42:22,788 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 07:42:22,789 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1052d.c [2021-12-17 07:42:22,843 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23867597a/888e616b54ec4174be8f6fb5ef38a619/FLAG60199de92 [2021-12-17 07:42:23,253 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 07:42:23,254 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1052d.c [2021-12-17 07:42:23,260 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23867597a/888e616b54ec4174be8f6fb5ef38a619/FLAG60199de92 [2021-12-17 07:42:23,277 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23867597a/888e616b54ec4174be8f6fb5ef38a619 [2021-12-17 07:42:23,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 07:42:23,281 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 07:42:23,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 07:42:23,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 07:42:23,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 07:42:23,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:42:23" (1/1) ... [2021-12-17 07:42:23,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77736f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:42:23, skipping insertion in model container [2021-12-17 07:42:23,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:42:23" (1/1) ... [2021-12-17 07:42:23,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 07:42:23,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 07:42:23,507 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1052d.c[2259,2272] [2021-12-17 07:42:23,512 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 07:42:23,524 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 07:42:23,567 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1052d.c[2259,2272] [2021-12-17 07:42:23,569 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 07:42:23,588 INFO L208 MainTranslator]: Completed translation [2021-12-17 07:42:23,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:42:23 WrapperNode [2021-12-17 07:42:23,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 07:42:23,590 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 07:42:23,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 07:42:23,592 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 07:42:23,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:42:23" (1/1) ... [2021-12-17 07:42:23,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:42:23" (1/1) ... [2021-12-17 07:42:23,638 INFO L137 Inliner]: procedures = 19, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 117 [2021-12-17 07:42:23,639 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 07:42:23,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 07:42:23,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 07:42:23,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 07:42:23,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:42:23" (1/1) ... [2021-12-17 07:42:23,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:42:23" (1/1) ... [2021-12-17 07:42:23,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:42:23" (1/1) ... [2021-12-17 07:42:23,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:42:23" (1/1) ... [2021-12-17 07:42:23,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:42:23" (1/1) ... [2021-12-17 07:42:23,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:42:23" (1/1) ... [2021-12-17 07:42:23,683 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:42:23" (1/1) ... [2021-12-17 07:42:23,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 07:42:23,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 07:42:23,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 07:42:23,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 07:42:23,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:42:23" (1/1) ... [2021-12-17 07:42:23,701 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:42:23,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 07:42:23,729 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-17 07:42:23,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-17 07:42:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 07:42:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-12-17 07:42:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-12-17 07:42:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-17 07:42:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-17 07:42:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-17 07:42:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 07:42:23,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 07:42:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-17 07:42:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-17 07:42:23,844 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 07:42:23,845 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 07:42:25,088 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 07:42:25,092 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 07:42:25,092 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-17 07:42:25,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:42:25 BoogieIcfgContainer [2021-12-17 07:42:25,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 07:42:25,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 07:42:25,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 07:42:25,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 07:42:25,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 07:42:23" (1/3) ... [2021-12-17 07:42:25,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6701869e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 07:42:25, skipping insertion in model container [2021-12-17 07:42:25,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:42:23" (2/3) ... [2021-12-17 07:42:25,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6701869e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 07:42:25, skipping insertion in model container [2021-12-17 07:42:25,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:42:25" (3/3) ... [2021-12-17 07:42:25,101 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052d.c [2021-12-17 07:42:25,106 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 07:42:25,106 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 07:42:25,137 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 07:42:25,142 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 07:42:25,142 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 07:42:25,151 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 36 states have (on average 1.6666666666666667) internal successors, (60), 37 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:42:25,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-17 07:42:25,155 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:42:25,156 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:42:25,156 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:42:25,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:42:25,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1930029915, now seen corresponding path program 1 times [2021-12-17 07:42:25,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:42:25,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512124091] [2021-12-17 07:42:25,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:42:25,169 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:42:25,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:42:25,171 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:42:25,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-17 07:42:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:42:25,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-17 07:42:25,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:42:25,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:42:25,265 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:42:25,265 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:42:25,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [512124091] [2021-12-17 07:42:25,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [512124091] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:42:25,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:42:25,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 07:42:25,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121560931] [2021-12-17 07:42:25,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:42:25,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 07:42:25,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:42:25,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 07:42:25,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 07:42:25,291 INFO L87 Difference]: Start difference. First operand has 38 states, 36 states have (on average 1.6666666666666667) internal successors, (60), 37 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:42:25,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:42:25,310 INFO L93 Difference]: Finished difference Result 74 states and 118 transitions. [2021-12-17 07:42:25,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 07:42:25,312 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-17 07:42:25,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:42:25,320 INFO L225 Difference]: With dead ends: 74 [2021-12-17 07:42:25,320 INFO L226 Difference]: Without dead ends: 35 [2021-12-17 07:42:25,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 07:42:25,327 INFO L933 BasicCegarLoop]: 53 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, 53 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 [2021-12-17 07:42:25,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 07:42:25,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-12-17 07:42:25,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-12-17 07:42:25,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 34 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:42:25,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 50 transitions. [2021-12-17 07:42:25,363 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 50 transitions. Word has length 11 [2021-12-17 07:42:25,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:42:25,363 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 50 transitions. [2021-12-17 07:42:25,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:42:25,363 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2021-12-17 07:42:25,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-17 07:42:25,364 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:42:25,364 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:42:25,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-17 07:42:25,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:42:25,567 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:42:25,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:42:25,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1310108990, now seen corresponding path program 1 times [2021-12-17 07:42:25,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:42:25,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [806071906] [2021-12-17 07:42:25,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:42:25,569 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:42:25,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:42:25,570 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:42:25,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-17 07:42:25,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:42:25,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-17 07:42:25,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:42:25,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:42:25,788 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:42:25,788 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:42:25,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [806071906] [2021-12-17 07:42:25,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [806071906] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:42:25,788 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:42:25,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 07:42:25,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563956197] [2021-12-17 07:42:25,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:42:25,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 07:42:25,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:42:25,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 07:42:25,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 07:42:25,790 INFO L87 Difference]: Start difference. First operand 35 states and 50 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:42:26,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:42:26,553 INFO L93 Difference]: Finished difference Result 47 states and 62 transitions. [2021-12-17 07:42:26,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 07:42:26,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-17 07:42:26,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:42:26,556 INFO L225 Difference]: With dead ends: 47 [2021-12-17 07:42:26,556 INFO L226 Difference]: Without dead ends: 31 [2021-12-17 07:42:26,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-17 07:42:26,557 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 2 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-17 07:42:26,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 119 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 22 Unchecked, 0.7s Time] [2021-12-17 07:42:26,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-12-17 07:42:26,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-12-17 07:42:26,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.4) internal successors, (42), 30 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:42:26,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2021-12-17 07:42:26,568 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 12 [2021-12-17 07:42:26,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:42:26,568 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2021-12-17 07:42:26,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:42:26,568 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2021-12-17 07:42:26,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-17 07:42:26,569 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:42:26,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:42:26,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-17 07:42:26,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:42:26,770 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:42:26,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:42:26,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1803079892, now seen corresponding path program 1 times [2021-12-17 07:42:26,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:42:26,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [793689838] [2021-12-17 07:42:26,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:42:26,771 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:42:26,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:42:26,772 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:42:26,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-17 07:42:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:42:26,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-17 07:42:26,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:42:26,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:42:26,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:42:26,899 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:42:26,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [793689838] [2021-12-17 07:42:26,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [793689838] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:42:26,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:42:26,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 07:42:26,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757817818] [2021-12-17 07:42:26,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:42:26,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 07:42:26,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:42:26,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 07:42:26,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 07:42:26,901 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:42:27,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:42:27,249 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2021-12-17 07:42:27,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 07:42:27,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-17 07:42:27,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:42:27,251 INFO L225 Difference]: With dead ends: 43 [2021-12-17 07:42:27,251 INFO L226 Difference]: Without dead ends: 22 [2021-12-17 07:42:27,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-17 07:42:27,252 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 07:42:27,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 73 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 11 Unchecked, 0.3s Time] [2021-12-17 07:42:27,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-12-17 07:42:27,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-12-17 07:42:27,254 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) [2021-12-17 07:42:27,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2021-12-17 07:42:27,255 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 12 [2021-12-17 07:42:27,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:42:27,255 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2021-12-17 07:42:27,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:42:27,255 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2021-12-17 07:42:27,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-17 07:42:27,256 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:42:27,256 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:42:27,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-17 07:42:27,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:42:27,457 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:42:27,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:42:27,458 INFO L85 PathProgramCache]: Analyzing trace with hash -649381144, now seen corresponding path program 1 times [2021-12-17 07:42:27,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:42:27,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [621536136] [2021-12-17 07:42:27,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:42:27,458 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:42:27,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:42:27,460 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) [2021-12-17 07:42:27,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-17 07:42:27,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:42:27,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-17 07:42:27,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:42:27,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:42:27,711 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:42:27,711 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:42:27,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [621536136] [2021-12-17 07:42:27,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [621536136] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:42:27,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:42:27,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 07:42:27,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628565103] [2021-12-17 07:42:27,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:42:27,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 07:42:27,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:42:27,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 07:42:27,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 07:42:27,713 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:42:27,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:42:27,773 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2021-12-17 07:42:27,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 07:42:27,774 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2021-12-17 07:42:27,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:42:27,775 INFO L225 Difference]: With dead ends: 34 [2021-12-17 07:42:27,775 INFO L226 Difference]: Without dead ends: 22 [2021-12-17 07:42:27,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 07:42:27,776 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 23 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 07:42:27,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 32 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 07:42:27,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-12-17 07:42:27,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-12-17 07:42:27,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:42:27,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2021-12-17 07:42:27,781 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 15 [2021-12-17 07:42:27,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:42:27,781 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2021-12-17 07:42:27,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:42:27,782 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2021-12-17 07:42:27,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-17 07:42:27,782 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:42:27,782 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:42:27,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-17 07:42:27,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:42:27,983 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:42:27,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:42:27,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1381924140, now seen corresponding path program 1 times [2021-12-17 07:42:27,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:42:27,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32809674] [2021-12-17 07:42:27,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:42:27,984 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:42:27,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:42:27,985 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) [2021-12-17 07:42:27,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-17 07:42:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:42:28,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-17 07:42:28,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:42:28,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2021-12-17 07:42:28,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:42:28,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:42:28,234 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:42:28,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32809674] [2021-12-17 07:42:28,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [32809674] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:42:28,235 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:42:28,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 07:42:28,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713457509] [2021-12-17 07:42:28,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:42:28,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 07:42:28,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:42:28,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 07:42:28,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 07:42:28,239 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:42:28,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:42:28,523 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2021-12-17 07:42:28,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-17 07:42:28,524 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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 16 [2021-12-17 07:42:28,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:42:28,525 INFO L225 Difference]: With dead ends: 34 [2021-12-17 07:42:28,525 INFO L226 Difference]: Without dead ends: 21 [2021-12-17 07:42:28,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-17 07:42:28,526 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 42 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 07:42:28,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 25 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 07:42:28,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-12-17 07:42:28,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-12-17 07:42:28,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.0) internal successors, (20), 20 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:42:28,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2021-12-17 07:42:28,528 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 16 [2021-12-17 07:42:28,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:42:28,529 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2021-12-17 07:42:28,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:42:28,529 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2021-12-17 07:42:28,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-17 07:42:28,529 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:42:28,529 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:42:28,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-12-17 07:42:28,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:42:28,730 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:42:28,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:42:28,731 INFO L85 PathProgramCache]: Analyzing trace with hash -2014843095, now seen corresponding path program 1 times [2021-12-17 07:42:28,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:42:28,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [174108297] [2021-12-17 07:42:28,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:42:28,731 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:42:28,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:42:28,732 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:42:28,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-17 07:42:28,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:42:28,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 19 conjunts are in the unsatisfiable core [2021-12-17 07:42:28,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:42:28,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2021-12-17 07:42:29,054 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-17 07:42:29,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 25 [2021-12-17 07:42:29,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:42:29,184 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:42:29,185 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:42:29,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [174108297] [2021-12-17 07:42:29,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [174108297] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:42:29,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:42:29,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-17 07:42:29,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669844614] [2021-12-17 07:42:29,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:42:29,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-17 07:42:29,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:42:29,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-17 07:42:29,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-17 07:42:29,186 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:42:29,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:42:29,238 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2021-12-17 07:42:29,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-17 07:42:29,238 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-12-17 07:42:29,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:42:29,238 INFO L225 Difference]: With dead ends: 21 [2021-12-17 07:42:29,238 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 07:42:29,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-12-17 07:42:29,239 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 3 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 07:42:29,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 79 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 26 Unchecked, 0.0s Time] [2021-12-17 07:42:29,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 07:42:29,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 07:42:29,240 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) [2021-12-17 07:42:29,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 07:42:29,240 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2021-12-17 07:42:29,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:42:29,240 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 07:42:29,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:42:29,240 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 07:42:29,240 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 07:42:29,242 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 07:42:29,261 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-12-17 07:42:29,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:42:29,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 07:42:29,584 INFO L858 garLoopResultBuilder]: For program point L60(lines 60 67) no Hoare annotation was computed. [2021-12-17 07:42:29,585 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 07:42:29,585 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 07:42:29,585 INFO L858 garLoopResultBuilder]: For program point L28(lines 28 71) no Hoare annotation was computed. [2021-12-17 07:42:29,585 INFO L854 garLoopResultBuilder]: At program point L78(lines 18 79) the Hoare annotation is: (let ((.cse0 (let ((.cse4 (concat (_ bv0 32) (_ bv0 32)))) (fp ((_ extract 63 63) .cse4) ((_ extract 62 52) .cse4) ((_ extract 51 0) .cse4))))) (and (= |ULTIMATE.start_floor_double_~i0~0#1| |ULTIMATE.start_floor_double_~i1~0#1|) (= |ULTIMATE.start_floor_double_~x#1| .cse0) (exists ((|v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9| (_ BitVec 32))) (let ((.cse3 (select |#memory_int| |v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9|))) (let ((.cse2 (select .cse3 (_ bv4 32)))) (and (= |ULTIMATE.start_floor_double_#res#1| (let ((.cse1 (concat .cse2 (select .cse3 (_ bv0 32))))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1)))) (= .cse2 (_ bv0 32)))))) (= currentRoundingMode roundNearestTiesToEven) (= |ULTIMATE.start_floor_double_#res#1| .cse0) (= |ULTIMATE.start_floor_double_~i1~0#1| (_ bv0 32)) (= ~huge_floor~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)))) [2021-12-17 07:42:29,585 INFO L858 garLoopResultBuilder]: For program point L29(lines 29 48) no Hoare annotation was computed. [2021-12-17 07:42:29,585 INFO L858 garLoopResultBuilder]: For program point L21-1(lines 21 26) no Hoare annotation was computed. [2021-12-17 07:42:29,585 INFO L854 garLoopResultBuilder]: At program point L21-2(lines 21 26) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= |ULTIMATE.start_floor_double_~x#1| (_ +zero 11 53)) (= ~huge_floor~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0))) [2021-12-17 07:42:29,585 INFO L858 garLoopResultBuilder]: For program point L21-3(lines 21 26) no Hoare annotation was computed. [2021-12-17 07:42:29,585 INFO L858 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-12-17 07:42:29,585 INFO L858 garLoopResultBuilder]: For program point L104-2(lines 104 107) no Hoare annotation was computed. [2021-12-17 07:42:29,585 INFO L858 garLoopResultBuilder]: For program point L30(lines 30 37) no Hoare annotation was computed. [2021-12-17 07:42:29,585 INFO L858 garLoopResultBuilder]: For program point L105(line 105) no Hoare annotation was computed. [2021-12-17 07:42:29,585 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 77) no Hoare annotation was computed. [2021-12-17 07:42:29,586 INFO L858 garLoopResultBuilder]: For program point L72-1(lines 18 79) no Hoare annotation was computed. [2021-12-17 07:42:29,586 INFO L858 garLoopResultBuilder]: For program point L72-2(lines 72 77) no Hoare annotation was computed. [2021-12-17 07:42:29,586 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 65) no Hoare annotation was computed. [2021-12-17 07:42:29,586 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 36) no Hoare annotation was computed. [2021-12-17 07:42:29,586 INFO L858 garLoopResultBuilder]: For program point L64-2(lines 64 65) no Hoare annotation was computed. [2021-12-17 07:42:29,586 INFO L858 garLoopResultBuilder]: For program point L56(lines 56 57) no Hoare annotation was computed. [2021-12-17 07:42:29,586 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2021-12-17 07:42:29,586 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 07:42:29,586 INFO L854 garLoopResultBuilder]: At program point L90(lines 81 91) the Hoare annotation is: (let ((.cse0 (let ((.cse1 (concat (_ bv0 32) (_ bv0 32)))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))))) (and (= |ULTIMATE.start_floor_double_~i0~0#1| |ULTIMATE.start_floor_double_~i1~0#1|) (= |ULTIMATE.start_floor_double_~x#1| .cse0) (= currentRoundingMode roundNearestTiesToEven) (= |ULTIMATE.start_floor_double_#res#1| .cse0) (= |ULTIMATE.start_floor_double_~i1~0#1| (_ bv0 32)) (= |ULTIMATE.start___signbit_double_#res#1| (_ bv0 32)) (= ~huge_floor~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) |ULTIMATE.start_main_#t~short10#1|)) [2021-12-17 07:42:29,586 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 105) no Hoare annotation was computed. [2021-12-17 07:42:29,586 INFO L858 garLoopResultBuilder]: For program point L49(lines 49 71) no Hoare annotation was computed. [2021-12-17 07:42:29,586 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 36) no Hoare annotation was computed. [2021-12-17 07:42:29,586 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 07:42:29,586 INFO L858 garLoopResultBuilder]: For program point L58(lines 58 70) no Hoare annotation was computed. [2021-12-17 07:42:29,586 INFO L858 garLoopResultBuilder]: For program point L50(lines 50 53) no Hoare annotation was computed. [2021-12-17 07:42:29,587 INFO L858 garLoopResultBuilder]: For program point L42(lines 42 47) no Hoare annotation was computed. [2021-12-17 07:42:29,587 INFO L858 garLoopResultBuilder]: For program point L59(lines 59 68) no Hoare annotation was computed. [2021-12-17 07:42:29,587 INFO L858 garLoopResultBuilder]: For program point L59-1(lines 59 68) no Hoare annotation was computed. [2021-12-17 07:42:29,587 INFO L858 garLoopResultBuilder]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2021-12-17 07:42:29,587 INFO L854 garLoopResultBuilder]: At program point L84-2(lines 84 88) the Hoare annotation is: (let ((.cse0 (let ((.cse4 (concat (_ bv0 32) (_ bv0 32)))) (fp ((_ extract 63 63) .cse4) ((_ extract 62 52) .cse4) ((_ extract 51 0) .cse4))))) (and (= |ULTIMATE.start_floor_double_~i0~0#1| |ULTIMATE.start_floor_double_~i1~0#1|) (= |ULTIMATE.start_floor_double_~x#1| .cse0) (= currentRoundingMode roundNearestTiesToEven) (= |ULTIMATE.start_floor_double_#res#1| .cse0) (= |ULTIMATE.start_floor_double_~i1~0#1| (_ bv0 32)) (exists ((|v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9| (_ BitVec 32))) (let ((.cse3 (select |#memory_int| |v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9|))) (let ((.cse2 (select .cse3 (_ bv4 32)))) (and (= |ULTIMATE.start___signbit_double_~x#1| (let ((.cse1 (concat .cse2 (select .cse3 (_ bv0 32))))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1)))) (= .cse2 (_ bv0 32)))))) (= ~huge_floor~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) |ULTIMATE.start_main_#t~short10#1|)) [2021-12-17 07:42:29,587 INFO L858 garLoopResultBuilder]: For program point L84-3(lines 84 88) no Hoare annotation was computed. [2021-12-17 07:42:29,587 INFO L861 garLoopResultBuilder]: At program point L109(lines 93 110) the Hoare annotation is: true [2021-12-17 07:42:29,587 INFO L858 garLoopResultBuilder]: For program point L43(lines 43 44) no Hoare annotation was computed. [2021-12-17 07:42:29,587 INFO L858 garLoopResultBuilder]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2021-12-17 07:42:29,589 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-12-17 07:42:29,590 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 07:42:29,600 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:42:29,601 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,601 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,601 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,601 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,601 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,601 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,601 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,603 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:42:29,604 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,604 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,604 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,604 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,604 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,604 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,604 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,605 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:42:29,605 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:42:29,606 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,606 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,606 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,606 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,606 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,607 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,607 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,607 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:42:29,607 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,607 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,607 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,608 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,608 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,608 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,608 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,608 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:42:29,609 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:42:29,609 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:42:29,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 07:42:29 BoogieIcfgContainer [2021-12-17 07:42:29,609 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 07:42:29,610 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 07:42:29,610 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 07:42:29,610 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 07:42:29,610 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:42:25" (3/4) ... [2021-12-17 07:42:29,612 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 07:42:29,624 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-12-17 07:42:29,625 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-12-17 07:42:29,626 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 07:42:29,626 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 07:42:29,643 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((i0 == i1 && x == ~fp~LONGDOUBLE((0bv32 ++ 0bv32)[63:63], (0bv32 ++ 0bv32)[62:52], (0bv32 ++ 0bv32)[51:0])) && (\exists v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9 : bv32 :: \result == ~fp~LONGDOUBLE((unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][0bv32])[63:63], (unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][0bv32])[62:52], (unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][0bv32])[51:0]) && unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][4bv32] == 0bv32)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && \result == ~fp~LONGDOUBLE((0bv32 ++ 0bv32)[63:63], (0bv32 ++ 0bv32)[62:52], (0bv32 ++ 0bv32)[51:0])) && i1 == 0bv32) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) [2021-12-17 07:42:29,644 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((i0 == i1 && x == ~fp~LONGDOUBLE((0bv32 ++ 0bv32)[63:63], (0bv32 ++ 0bv32)[62:52], (0bv32 ++ 0bv32)[51:0])) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && \result == ~fp~LONGDOUBLE((0bv32 ++ 0bv32)[63:63], (0bv32 ++ 0bv32)[62:52], (0bv32 ++ 0bv32)[51:0])) && i1 == 0bv32) && (\exists v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9 : bv32 :: x == ~fp~LONGDOUBLE((unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][0bv32])[63:63], (unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][0bv32])[62:52], (unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][0bv32])[51:0]) && unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][4bv32] == 0bv32)) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && aux-res == 0.0 && __signbit_double(res) == 0-aux [2021-12-17 07:42:29,644 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((i0 == i1 && x == ~fp~LONGDOUBLE((0bv32 ++ 0bv32)[63:63], (0bv32 ++ 0bv32)[62:52], (0bv32 ++ 0bv32)[51:0])) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && \result == ~fp~LONGDOUBLE((0bv32 ++ 0bv32)[63:63], (0bv32 ++ 0bv32)[62:52], (0bv32 ++ 0bv32)[51:0])) && i1 == 0bv32) && \result == 0bv32) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && aux-res == 0.0 && __signbit_double(res) == 0-aux [2021-12-17 07:42:29,662 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 07:42:29,662 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 07:42:29,663 INFO L158 Benchmark]: Toolchain (without parser) took 6381.64ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 33.4MB in the beginning and 44.3MB in the end (delta: -11.0MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2021-12-17 07:42:29,663 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 54.5MB. Free memory was 36.6MB in the beginning and 36.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 07:42:29,664 INFO L158 Benchmark]: CACSL2BoogieTranslator took 305.26ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 33.1MB in the beginning and 50.4MB in the end (delta: -17.3MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2021-12-17 07:42:29,664 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.73ms. Allocated memory is still 69.2MB. Free memory was 50.4MB in the beginning and 48.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 07:42:29,664 INFO L158 Benchmark]: Boogie Preprocessor took 45.44ms. Allocated memory is still 69.2MB. Free memory was 48.5MB in the beginning and 46.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 07:42:29,664 INFO L158 Benchmark]: RCFGBuilder took 1408.54ms. Allocated memory is still 69.2MB. Free memory was 46.8MB in the beginning and 50.1MB in the end (delta: -3.3MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2021-12-17 07:42:29,665 INFO L158 Benchmark]: TraceAbstraction took 4513.94ms. Allocated memory is still 69.2MB. Free memory was 49.7MB in the beginning and 48.1MB in the end (delta: 1.7MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2021-12-17 07:42:29,665 INFO L158 Benchmark]: Witness Printer took 52.56ms. Allocated memory is still 69.2MB. Free memory was 48.1MB in the beginning and 44.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-17 07:42:29,666 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 54.5MB. Free memory was 36.6MB in the beginning and 36.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 305.26ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 33.1MB in the beginning and 50.4MB in the end (delta: -17.3MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.73ms. Allocated memory is still 69.2MB. Free memory was 50.4MB in the beginning and 48.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.44ms. Allocated memory is still 69.2MB. Free memory was 48.5MB in the beginning and 46.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1408.54ms. Allocated memory is still 69.2MB. Free memory was 46.8MB in the beginning and 50.1MB in the end (delta: -3.3MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4513.94ms. Allocated memory is still 69.2MB. Free memory was 49.7MB in the beginning and 48.1MB in the end (delta: 1.7MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. * Witness Printer took 52.56ms. Allocated memory is still 69.2MB. Free memory was 48.1MB in the beginning and 44.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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: 105]: 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, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 72 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 381 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 59 IncrementalHoareTripleChecker+Unchecked, 224 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 157 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 249 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 80 ConstructedInterpolants, 14 QuantifiedInterpolants, 613 SizeOfPredicates, 34 NumberOfNonLiveVariables, 317 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 93]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 84]: Loop Invariant [2021-12-17 07:42:29,685 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:42:29,685 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,685 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,686 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,686 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,686 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,686 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,686 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,688 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:42:29,689 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,689 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,689 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,689 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,689 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,689 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,689 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] Derived loop invariant: ((((((i0 == i1 && x == ~fp~LONGDOUBLE((0bv32 ++ 0bv32)[63:63], (0bv32 ++ 0bv32)[62:52], (0bv32 ++ 0bv32)[51:0])) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && \result == ~fp~LONGDOUBLE((0bv32 ++ 0bv32)[63:63], (0bv32 ++ 0bv32)[62:52], (0bv32 ++ 0bv32)[51:0])) && i1 == 0bv32) && (\exists v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9 : bv32 :: x == ~fp~LONGDOUBLE((unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][0bv32])[63:63], (unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][0bv32])[62:52], (unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][0bv32])[51:0]) && unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][4bv32] == 0bv32)) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && aux-res == 0.0 && __signbit_double(res) == 0-aux - InvariantResult [Line: 81]: Loop Invariant [2021-12-17 07:42:29,692 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:42:29,692 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((((i0 == i1 && x == ~fp~LONGDOUBLE((0bv32 ++ 0bv32)[63:63], (0bv32 ++ 0bv32)[62:52], (0bv32 ++ 0bv32)[51:0])) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && \result == ~fp~LONGDOUBLE((0bv32 ++ 0bv32)[63:63], (0bv32 ++ 0bv32)[62:52], (0bv32 ++ 0bv32)[51:0])) && i1 == 0bv32) && \result == 0bv32) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && aux-res == 0.0 && __signbit_double(res) == 0-aux - InvariantResult [Line: 18]: Loop Invariant [2021-12-17 07:42:29,693 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,693 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,694 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,694 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,694 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,695 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,695 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,695 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:42:29,695 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,696 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,696 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,696 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,696 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,696 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,696 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9,QUANTIFIED] [2021-12-17 07:42:29,696 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((i0 == i1 && x == ~fp~LONGDOUBLE((0bv32 ++ 0bv32)[63:63], (0bv32 ++ 0bv32)[62:52], (0bv32 ++ 0bv32)[51:0])) && (\exists v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9 : bv32 :: \result == ~fp~LONGDOUBLE((unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][0bv32])[63:63], (unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][0bv32])[62:52], (unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][4bv32] ++ unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][0bv32])[51:0]) && unknown-#memory_int-unknown[v_ULTIMATE.start_floor_double_~#iw_u~0#1.base_9][4bv32] == 0bv32)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && \result == ~fp~LONGDOUBLE((0bv32 ++ 0bv32)[63:63], (0bv32 ++ 0bv32)[62:52], (0bv32 ++ 0bv32)[51:0])) && i1 == 0bv32) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) - InvariantResult [Line: 21]: Loop Invariant [2021-12-17 07:42:29,699 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-17 07:42:29,699 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~Pluszero~LONGDOUBLE()) && huge_floor == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) RESULT: Ultimate proved your program to be correct! [2021-12-17 07:42:29,734 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