./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0730b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0730b.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 05e2baf38cd0eae96e398823454df9c6d2eba699137545e6490e497cf90c6efe --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 14:06:43,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 14:06:43,302 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 14:06:43,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 14:06:43,353 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 14:06:43,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 14:06:43,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 14:06:43,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 14:06:43,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 14:06:43,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 14:06:43,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 14:06:43,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 14:06:43,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 14:06:43,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 14:06:43,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 14:06:43,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 14:06:43,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 14:06:43,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 14:06:43,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 14:06:43,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 14:06:43,380 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 14:06:43,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 14:06:43,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 14:06:43,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 14:06:43,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 14:06:43,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 14:06:43,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 14:06:43,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 14:06:43,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 14:06:43,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 14:06:43,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 14:06:43,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 14:06:43,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 14:06:43,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 14:06:43,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 14:06:43,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 14:06:43,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 14:06:43,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 14:06:43,393 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 14:06:43,393 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 14:06:43,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 14:06:43,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 14:06:43,397 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 14:06:43,418 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 14:06:43,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 14:06:43,419 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 14:06:43,419 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 14:06:43,420 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 14:06:43,420 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 14:06:43,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 14:06:43,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 14:06:43,421 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 14:06:43,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 14:06:43,422 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 14:06:43,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 14:06:43,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 14:06:43,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 14:06:43,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 14:06:43,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 14:06:43,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 14:06:43,423 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 14:06:43,423 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 14:06:43,424 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 14:06:43,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 14:06:43,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 14:06:43,424 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 14:06:43,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 14:06:43,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:06:43,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 14:06:43,425 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 14:06:43,425 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 14:06:43,425 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 14:06:43,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 14:06:43,426 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 14:06:43,426 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 14:06:43,426 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 14:06:43,426 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05e2baf38cd0eae96e398823454df9c6d2eba699137545e6490e497cf90c6efe [2022-07-19 14:06:43,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 14:06:43,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 14:06:43,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 14:06:43,661 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 14:06:43,661 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 14:06:43,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0730b.c [2022-07-19 14:06:43,729 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/516316c17/d207f4a950614025bdb9d9d7de437ca8/FLAGb366ca350 [2022-07-19 14:06:44,139 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 14:06:44,145 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0730b.c [2022-07-19 14:06:44,151 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/516316c17/d207f4a950614025bdb9d9d7de437ca8/FLAGb366ca350 [2022-07-19 14:06:44,167 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/516316c17/d207f4a950614025bdb9d9d7de437ca8 [2022-07-19 14:06:44,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 14:06:44,172 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 14:06:44,173 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 14:06:44,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 14:06:44,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 14:06:44,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:06:44" (1/1) ... [2022-07-19 14:06:44,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49cc2570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:06:44, skipping insertion in model container [2022-07-19 14:06:44,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:06:44" (1/1) ... [2022-07-19 14:06:44,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 14:06:44,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 14:06:44,441 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_0730b.c[3225,3238] [2022-07-19 14:06:44,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:06:44,452 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 14:06:44,492 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_0730b.c[3225,3238] [2022-07-19 14:06:44,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:06:44,513 INFO L208 MainTranslator]: Completed translation [2022-07-19 14:06:44,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:06:44 WrapperNode [2022-07-19 14:06:44,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 14:06:44,515 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 14:06:44,515 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 14:06:44,515 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 14:06:44,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:06:44" (1/1) ... [2022-07-19 14:06:44,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:06:44" (1/1) ... [2022-07-19 14:06:44,570 INFO L137 Inliner]: procedures = 17, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 192 [2022-07-19 14:06:44,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 14:06:44,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 14:06:44,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 14:06:44,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 14:06:44,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:06:44" (1/1) ... [2022-07-19 14:06:44,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:06:44" (1/1) ... [2022-07-19 14:06:44,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:06:44" (1/1) ... [2022-07-19 14:06:44,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:06:44" (1/1) ... [2022-07-19 14:06:44,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:06:44" (1/1) ... [2022-07-19 14:06:44,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:06:44" (1/1) ... [2022-07-19 14:06:44,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:06:44" (1/1) ... [2022-07-19 14:06:44,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 14:06:44,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 14:06:44,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 14:06:44,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 14:06:44,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:06:44" (1/1) ... [2022-07-19 14:06:44,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:06:44,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:06:44,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 14:06:44,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 14:06:44,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 14:06:44,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 14:06:44,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 14:06:44,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-19 14:06:44,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 14:06:44,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-19 14:06:44,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 14:06:44,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 14:06:44,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 14:06:44,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 14:06:44,775 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 14:06:44,776 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 14:06:45,142 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 14:06:45,149 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 14:06:45,150 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2022-07-19 14:06:45,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:06:45 BoogieIcfgContainer [2022-07-19 14:06:45,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 14:06:45,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 14:06:45,164 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 14:06:45,168 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 14:06:45,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 02:06:44" (1/3) ... [2022-07-19 14:06:45,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2857934a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:06:45, skipping insertion in model container [2022-07-19 14:06:45,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:06:44" (2/3) ... [2022-07-19 14:06:45,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2857934a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:06:45, skipping insertion in model container [2022-07-19 14:06:45,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:06:45" (3/3) ... [2022-07-19 14:06:45,171 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0730b.c [2022-07-19 14:06:45,182 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 14:06:45,183 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 14:06:45,223 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 14:06:45,233 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6384863b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4ecc0189 [2022-07-19 14:06:45,233 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 14:06:45,237 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 55 states have (on average 1.6727272727272726) internal successors, (92), 56 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:06:45,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-19 14:06:45,242 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:06:45,242 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:06:45,243 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:06:45,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:06:45,248 INFO L85 PathProgramCache]: Analyzing trace with hash 361731644, now seen corresponding path program 1 times [2022-07-19 14:06:45,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:06:45,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842569883] [2022-07-19 14:06:45,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:06:45,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:06:45,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:06:45,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:06:45,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 14:06:45,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842569883] [2022-07-19 14:06:45,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842569883] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:06:45,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:06:45,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 14:06:45,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433555413] [2022-07-19 14:06:45,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:06:45,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 14:06:45,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 14:06:45,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 14:06:45,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 14:06:45,389 INFO L87 Difference]: Start difference. First operand has 57 states, 55 states have (on average 1.6727272727272726) internal successors, (92), 56 states have internal predecessors, (92), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:06:45,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:06:45,411 INFO L93 Difference]: Finished difference Result 112 states and 182 transitions. [2022-07-19 14:06:45,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 14:06:45,413 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2022-07-19 14:06:45,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:06:45,420 INFO L225 Difference]: With dead ends: 112 [2022-07-19 14:06:45,420 INFO L226 Difference]: Without dead ends: 54 [2022-07-19 14:06:45,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 14:06:45,426 INFO L413 NwaCegarLoop]: 78 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, 78 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:06:45,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 14:06:45,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-07-19 14:06:45,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-07-19 14:06:45,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.4150943396226414) internal successors, (75), 53 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:06:45,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 75 transitions. [2022-07-19 14:06:45,469 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 75 transitions. Word has length 8 [2022-07-19 14:06:45,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:06:45,470 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 75 transitions. [2022-07-19 14:06:45,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:06:45,470 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 75 transitions. [2022-07-19 14:06:45,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-19 14:06:45,471 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:06:45,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:06:45,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 14:06:45,472 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:06:45,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:06:45,474 INFO L85 PathProgramCache]: Analyzing trace with hash 332485951, now seen corresponding path program 1 times [2022-07-19 14:06:45,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 14:06:45,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070077389] [2022-07-19 14:06:45,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:06:45,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 14:06:45,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 14:06:45,537 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 14:06:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 14:06:45,592 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 14:06:45,593 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 14:06:45,594 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 14:06:45,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 14:06:45,629 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-19 14:06:45,632 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 14:06:45,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 02:06:45 BoogieIcfgContainer [2022-07-19 14:06:45,659 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 14:06:45,660 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 14:06:45,661 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 14:06:45,661 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 14:06:45,661 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:06:45" (3/4) ... [2022-07-19 14:06:45,664 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-19 14:06:45,664 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 14:06:45,665 INFO L158 Benchmark]: Toolchain (without parser) took 1492.74ms. Allocated memory is still 132.1MB. Free memory was 96.7MB in the beginning and 102.1MB in the end (delta: -5.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:06:45,665 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory was 34.6MB in the beginning and 34.6MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:06:45,666 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.10ms. Allocated memory is still 132.1MB. Free memory was 96.5MB in the beginning and 102.3MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 14:06:45,668 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.09ms. Allocated memory is still 132.1MB. Free memory was 102.3MB in the beginning and 98.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-19 14:06:45,668 INFO L158 Benchmark]: Boogie Preprocessor took 57.67ms. Allocated memory is still 132.1MB. Free memory was 98.1MB in the beginning and 95.2MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:06:45,671 INFO L158 Benchmark]: RCFGBuilder took 533.02ms. Allocated memory is still 132.1MB. Free memory was 95.2MB in the beginning and 68.7MB in the end (delta: 26.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-07-19 14:06:45,671 INFO L158 Benchmark]: TraceAbstraction took 495.84ms. Allocated memory is still 132.1MB. Free memory was 68.7MB in the beginning and 102.5MB in the end (delta: -33.8MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2022-07-19 14:06:45,672 INFO L158 Benchmark]: Witness Printer took 3.56ms. Allocated memory is still 132.1MB. Free memory was 102.4MB in the beginning and 102.1MB in the end (delta: 327.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:06:45,710 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 77.6MB. Free memory was 34.6MB in the beginning and 34.6MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.10ms. Allocated memory is still 132.1MB. Free memory was 96.5MB in the beginning and 102.3MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.09ms. Allocated memory is still 132.1MB. Free memory was 102.3MB in the beginning and 98.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.67ms. Allocated memory is still 132.1MB. Free memory was 98.1MB in the beginning and 95.2MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 533.02ms. Allocated memory is still 132.1MB. Free memory was 95.2MB in the beginning and 68.7MB in the end (delta: 26.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 495.84ms. Allocated memory is still 132.1MB. Free memory was 68.7MB in the beginning and 102.5MB in the end (delta: -33.8MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. * Witness Printer took 3.56ms. Allocated memory is still 132.1MB. Free memory was 102.4MB in the beginning and 102.1MB in the end (delta: 327.9kB). 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: 156]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 151, overapproximation of someBinaryArithmeticDOUBLEoperation at line 35, overapproximation of bitwiseAnd at line 34, overapproximation of someBinaryDOUBLEComparisonOperation at line 155. Possible FailurePath: [L19] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L151] double x = -0.0; [L152] CALL, EXPR __ieee754_sqrt(x) [L22] double z; [L23] __int32_t sign = 0x80000000; [L24] __uint32_t r, t1, s1, ix1, q1; [L25] __int32_t ix0, s0, q, m, t, i; VAL [\old(x)=4294967296, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967296] [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (ix0) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (ix1) = ew_u.parts.lsw [L34] COND TRUE (ix0 & 0x7ff00000) == 0x7ff00000 [L35] return x * x + x; VAL [\old(x)=4294967296, ix0=-1, ix1=4294967297, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967296] [L152] RET, EXPR __ieee754_sqrt(x) [L152] double res = __ieee754_sqrt(x); [L155] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [one_sqrt=1, res=4294967298, res == -0.0 && __signbit_double(res) == 1=0, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967296] [L155] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L156] reach_error() VAL [one_sqrt=1, res=4294967298, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=4294967296] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 78 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, 78 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=57occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-19 14:06:45,746 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_0730b.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 05e2baf38cd0eae96e398823454df9c6d2eba699137545e6490e497cf90c6efe --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 14:06:47,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 14:06:47,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 14:06:47,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 14:06:47,550 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 14:06:47,552 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 14:06:47,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 14:06:47,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 14:06:47,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 14:06:47,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 14:06:47,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 14:06:47,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 14:06:47,566 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 14:06:47,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 14:06:47,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 14:06:47,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 14:06:47,570 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 14:06:47,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 14:06:47,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 14:06:47,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 14:06:47,579 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 14:06:47,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 14:06:47,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 14:06:47,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 14:06:47,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 14:06:47,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 14:06:47,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 14:06:47,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 14:06:47,589 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 14:06:47,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 14:06:47,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 14:06:47,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 14:06:47,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 14:06:47,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 14:06:47,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 14:06:47,594 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 14:06:47,594 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 14:06:47,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 14:06:47,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 14:06:47,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 14:06:47,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 14:06:47,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 14:06:47,600 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-19 14:06:47,626 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 14:06:47,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 14:06:47,626 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 14:06:47,627 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 14:06:47,627 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 14:06:47,627 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 14:06:47,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 14:06:47,628 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 14:06:47,628 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 14:06:47,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 14:06:47,629 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 14:06:47,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 14:06:47,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 14:06:47,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 14:06:47,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 14:06:47,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 14:06:47,630 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 14:06:47,630 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 14:06:47,630 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 14:06:47,630 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 14:06:47,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 14:06:47,631 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 14:06:47,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 14:06:47,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 14:06:47,631 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 14:06:47,631 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 14:06:47,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:06:47,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 14:06:47,632 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 14:06:47,632 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 14:06:47,632 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 14:06:47,632 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 14:06:47,632 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 14:06:47,633 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 14:06:47,633 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 14:06:47,633 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 14:06:47,633 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05e2baf38cd0eae96e398823454df9c6d2eba699137545e6490e497cf90c6efe [2022-07-19 14:06:47,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 14:06:47,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 14:06:47,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 14:06:47,930 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 14:06:47,931 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 14:06:47,932 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0730b.c [2022-07-19 14:06:47,990 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3042bffdb/d80b0a0021e84a2cb8f3599fd9302c3d/FLAG2512342e3 [2022-07-19 14:06:48,391 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 14:06:48,392 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0730b.c [2022-07-19 14:06:48,397 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3042bffdb/d80b0a0021e84a2cb8f3599fd9302c3d/FLAG2512342e3 [2022-07-19 14:06:48,413 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3042bffdb/d80b0a0021e84a2cb8f3599fd9302c3d [2022-07-19 14:06:48,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 14:06:48,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 14:06:48,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 14:06:48,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 14:06:48,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 14:06:48,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:06:48" (1/1) ... [2022-07-19 14:06:48,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@692a9f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:06:48, skipping insertion in model container [2022-07-19 14:06:48,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 02:06:48" (1/1) ... [2022-07-19 14:06:48,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 14:06:48,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 14:06:48,637 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_0730b.c[3225,3238] [2022-07-19 14:06:48,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:06:48,655 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 14:06:48,697 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_0730b.c[3225,3238] [2022-07-19 14:06:48,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 14:06:48,716 INFO L208 MainTranslator]: Completed translation [2022-07-19 14:06:48,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:06:48 WrapperNode [2022-07-19 14:06:48,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 14:06:48,718 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 14:06:48,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 14:06:48,719 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 14:06:48,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:06:48" (1/1) ... [2022-07-19 14:06:48,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:06:48" (1/1) ... [2022-07-19 14:06:48,765 INFO L137 Inliner]: procedures = 20, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 180 [2022-07-19 14:06:48,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 14:06:48,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 14:06:48,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 14:06:48,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 14:06:48,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:06:48" (1/1) ... [2022-07-19 14:06:48,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:06:48" (1/1) ... [2022-07-19 14:06:48,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:06:48" (1/1) ... [2022-07-19 14:06:48,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:06:48" (1/1) ... [2022-07-19 14:06:48,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:06:48" (1/1) ... [2022-07-19 14:06:48,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:06:48" (1/1) ... [2022-07-19 14:06:48,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:06:48" (1/1) ... [2022-07-19 14:06:48,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 14:06:48,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 14:06:48,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 14:06:48,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 14:06:48,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:06:48" (1/1) ... [2022-07-19 14:06:48,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 14:06:48,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 14:06:48,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 14:06:48,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 14:06:48,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 14:06:48,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-07-19 14:06:48,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-07-19 14:06:48,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 14:06:48,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 14:06:48,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-19 14:06:48,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 14:06:48,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 14:06:48,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-19 14:06:48,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 14:06:48,957 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 14:06:48,959 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 14:06:51,243 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 14:06:51,247 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 14:06:51,247 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2022-07-19 14:06:51,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:06:51 BoogieIcfgContainer [2022-07-19 14:06:51,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 14:06:51,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 14:06:51,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 14:06:51,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 14:06:51,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 02:06:48" (1/3) ... [2022-07-19 14:06:51,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e941661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:06:51, skipping insertion in model container [2022-07-19 14:06:51,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 02:06:48" (2/3) ... [2022-07-19 14:06:51,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e941661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 02:06:51, skipping insertion in model container [2022-07-19 14:06:51,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:06:51" (3/3) ... [2022-07-19 14:06:51,255 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0730b.c [2022-07-19 14:06:51,265 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 14:06:51,265 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 14:06:51,298 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 14:06:51,302 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3d41b09a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@708265b6 [2022-07-19 14:06:51,303 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 14:06:51,306 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 51 states have (on average 1.6470588235294117) internal successors, (84), 52 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:06:51,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-19 14:06:51,311 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:06:51,311 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:06:51,312 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:06:51,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:06:51,316 INFO L85 PathProgramCache]: Analyzing trace with hash 361085180, now seen corresponding path program 1 times [2022-07-19 14:06:51,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:06:51,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [56327960] [2022-07-19 14:06:51,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:06:51,326 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:06:51,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:06:51,327 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 14:06:51,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-19 14:06:51,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:06:51,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-19 14:06:51,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:06:51,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:06:51,627 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:06:51,628 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:06:51,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [56327960] [2022-07-19 14:06:51,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [56327960] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:06:51,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:06:51,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 14:06:51,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344697240] [2022-07-19 14:06:51,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:06:51,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 14:06:51,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:06:51,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 14:06:51,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 14:06:51,662 INFO L87 Difference]: Start difference. First operand has 53 states, 51 states have (on average 1.6470588235294117) internal successors, (84), 52 states have internal predecessors, (84), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:06:51,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:06:51,685 INFO L93 Difference]: Finished difference Result 104 states and 166 transitions. [2022-07-19 14:06:51,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 14:06:51,687 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2022-07-19 14:06:51,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:06:51,693 INFO L225 Difference]: With dead ends: 104 [2022-07-19 14:06:51,693 INFO L226 Difference]: Without dead ends: 50 [2022-07-19 14:06:51,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 14:06:51,698 INFO L413 NwaCegarLoop]: 73 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, 73 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:06:51,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 14:06:51,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-07-19 14:06:51,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-07-19 14:06:51,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 49 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:06:51,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 70 transitions. [2022-07-19 14:06:51,720 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 70 transitions. Word has length 8 [2022-07-19 14:06:51,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:06:51,721 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 70 transitions. [2022-07-19 14:06:51,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:06:51,721 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 70 transitions. [2022-07-19 14:06:51,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-19 14:06:51,722 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:06:51,722 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:06:51,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-19 14:06:51,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:06:51,935 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:06:51,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:06:51,936 INFO L85 PathProgramCache]: Analyzing trace with hash 331839487, now seen corresponding path program 1 times [2022-07-19 14:06:51,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:06:51,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093076617] [2022-07-19 14:06:51,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:06:51,937 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:06:51,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:06:51,938 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 14:06:51,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-19 14:06:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:06:52,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-19 14:06:52,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:06:52,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:06:52,424 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:06:52,424 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:06:52,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093076617] [2022-07-19 14:06:52,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2093076617] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:06:52,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:06:52,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 14:06:52,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080143635] [2022-07-19 14:06:52,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:06:52,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 14:06:52,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:06:52,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 14:06:52,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 14:06:52,427 INFO L87 Difference]: Start difference. First operand 50 states and 70 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:06:53,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:06:53,937 INFO L93 Difference]: Finished difference Result 59 states and 79 transitions. [2022-07-19 14:06:54,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 14:06:54,153 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2022-07-19 14:06:54,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:06:54,153 INFO L225 Difference]: With dead ends: 59 [2022-07-19 14:06:54,154 INFO L226 Difference]: Without dead ends: 50 [2022-07-19 14:06:54,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 14:06:54,155 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 2 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-19 14:06:54,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 167 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 30 Unchecked, 1.4s Time] [2022-07-19 14:06:54,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-07-19 14:06:54,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-07-19 14:06:54,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.4081632653061225) internal successors, (69), 49 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:06:54,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 69 transitions. [2022-07-19 14:06:54,160 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 69 transitions. Word has length 9 [2022-07-19 14:06:54,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:06:54,160 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 69 transitions. [2022-07-19 14:06:54,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:06:54,160 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 69 transitions. [2022-07-19 14:06:54,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-19 14:06:54,161 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:06:54,161 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:06:54,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-19 14:06:54,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:06:54,362 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:06:54,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:06:54,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1929218748, now seen corresponding path program 1 times [2022-07-19 14:06:54,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:06:54,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1256717373] [2022-07-19 14:06:54,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:06:54,363 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:06:54,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:06:54,367 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 14:06:54,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-19 14:06:54,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:06:54,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-19 14:06:54,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:06:54,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:06:54,673 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:06:54,673 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:06:54,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1256717373] [2022-07-19 14:06:54,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1256717373] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:06:54,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:06:54,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 14:06:54,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598333365] [2022-07-19 14:06:54,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:06:54,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 14:06:54,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:06:54,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 14:06:54,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 14:06:54,674 INFO L87 Difference]: Start difference. First operand 50 states and 69 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:06:57,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-19 14:06:57,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:06:57,650 INFO L93 Difference]: Finished difference Result 62 states and 80 transitions. [2022-07-19 14:06:57,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 14:06:57,651 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-19 14:06:57,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:06:57,652 INFO L225 Difference]: With dead ends: 62 [2022-07-19 14:06:57,652 INFO L226 Difference]: Without dead ends: 59 [2022-07-19 14:06:57,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-19 14:06:57,653 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 84 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-19 14:06:57,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 188 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-19 14:06:57,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-07-19 14:06:57,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 52. [2022-07-19 14:06:57,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.392156862745098) internal successors, (71), 51 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:06:57,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2022-07-19 14:06:57,665 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 11 [2022-07-19 14:06:57,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:06:57,665 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2022-07-19 14:06:57,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:06:57,665 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2022-07-19 14:06:57,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-19 14:06:57,669 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:06:57,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:06:57,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-19 14:06:57,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:06:57,871 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:06:57,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:06:57,871 INFO L85 PathProgramCache]: Analyzing trace with hash 239121058, now seen corresponding path program 1 times [2022-07-19 14:06:57,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:06:57,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774358824] [2022-07-19 14:06:57,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:06:57,872 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:06:57,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:06:57,873 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 14:06:57,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-19 14:06:58,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:06:58,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-19 14:06:58,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:06:59,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:06:59,029 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:06:59,029 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:06:59,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774358824] [2022-07-19 14:06:59,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774358824] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:06:59,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:06:59,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 14:06:59,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845164900] [2022-07-19 14:06:59,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:06:59,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 14:06:59,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:06:59,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 14:06:59,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 14:06:59,031 INFO L87 Difference]: Start difference. First operand 52 states and 71 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:06:59,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:06:59,162 INFO L93 Difference]: Finished difference Result 94 states and 129 transitions. [2022-07-19 14:06:59,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 14:06:59,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-07-19 14:06:59,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:06:59,164 INFO L225 Difference]: With dead ends: 94 [2022-07-19 14:06:59,164 INFO L226 Difference]: Without dead ends: 51 [2022-07-19 14:06:59,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 14:06:59,165 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 2 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 14:06:59,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 143 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 33 Unchecked, 0.1s Time] [2022-07-19 14:06:59,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-07-19 14:06:59,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-07-19 14:06:59,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.36) internal successors, (68), 50 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:06:59,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 68 transitions. [2022-07-19 14:06:59,170 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 68 transitions. Word has length 12 [2022-07-19 14:06:59,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:06:59,170 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 68 transitions. [2022-07-19 14:06:59,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:06:59,171 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 68 transitions. [2022-07-19 14:06:59,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-19 14:06:59,171 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:06:59,171 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:06:59,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-19 14:06:59,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:06:59,383 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:06:59,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:06:59,383 INFO L85 PathProgramCache]: Analyzing trace with hash 264903321, now seen corresponding path program 1 times [2022-07-19 14:06:59,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:06:59,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2132460979] [2022-07-19 14:06:59,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:06:59,384 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:06:59,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:06:59,385 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 14:06:59,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-19 14:06:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:06:59,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-19 14:06:59,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:07:00,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:07:00,136 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:07:00,136 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:07:00,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2132460979] [2022-07-19 14:07:00,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2132460979] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:07:00,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:07:00,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 14:07:00,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864542188] [2022-07-19 14:07:00,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:07:00,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 14:07:00,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:07:00,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 14:07:00,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 14:07:00,137 INFO L87 Difference]: Start difference. First operand 51 states and 68 transitions. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 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) [2022-07-19 14:07:00,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:07:00,962 INFO L93 Difference]: Finished difference Result 61 states and 76 transitions. [2022-07-19 14:07:00,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 14:07:00,962 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 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 [2022-07-19 14:07:00,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:07:00,963 INFO L225 Difference]: With dead ends: 61 [2022-07-19 14:07:00,963 INFO L226 Difference]: Without dead ends: 51 [2022-07-19 14:07:00,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-07-19 14:07:00,964 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 77 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 14:07:00,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 413 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 8 Unchecked, 0.3s Time] [2022-07-19 14:07:00,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-07-19 14:07:00,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2022-07-19 14:07:00,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.3617021276595744) internal successors, (64), 47 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:07:00,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 64 transitions. [2022-07-19 14:07:00,967 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 64 transitions. Word has length 15 [2022-07-19 14:07:00,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:07:00,967 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 64 transitions. [2022-07-19 14:07:00,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 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) [2022-07-19 14:07:00,967 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 64 transitions. [2022-07-19 14:07:00,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-19 14:07:00,967 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 14:07:00,967 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 14:07:00,977 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-07-19 14:07:01,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:07:01,168 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 14:07:01,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 14:07:01,169 INFO L85 PathProgramCache]: Analyzing trace with hash -677910631, now seen corresponding path program 1 times [2022-07-19 14:07:01,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 14:07:01,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173360239] [2022-07-19 14:07:01,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 14:07:01,169 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 14:07:01,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 14:07:01,171 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 14:07:01,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-19 14:07:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 14:07:01,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-19 14:07:01,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 14:07:01,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 14:07:01,420 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 14:07:01,420 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 14:07:01,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1173360239] [2022-07-19 14:07:01,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1173360239] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 14:07:01,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 14:07:01,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 14:07:01,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831281218] [2022-07-19 14:07:01,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 14:07:01,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 14:07:01,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 14:07:01,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 14:07:01,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 14:07:01,421 INFO L87 Difference]: Start difference. First operand 48 states and 64 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:07:01,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 14:07:01,482 INFO L93 Difference]: Finished difference Result 48 states and 64 transitions. [2022-07-19 14:07:01,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 14:07:01,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 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) Word has length 25 [2022-07-19 14:07:01,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 14:07:01,483 INFO L225 Difference]: With dead ends: 48 [2022-07-19 14:07:01,483 INFO L226 Difference]: Without dead ends: 0 [2022-07-19 14:07:01,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 14:07:01,484 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 14:07:01,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 2 Unchecked, 0.0s Time] [2022-07-19 14:07:01,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-19 14:07:01,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-19 14:07:01,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:07:01,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-19 14:07:01,485 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2022-07-19 14:07:01,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 14:07:01,485 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-19 14:07:01,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 14:07:01,485 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-19 14:07:01,485 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-19 14:07:01,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 14:07:01,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-19 14:07:01,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 14:07:01,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-19 14:07:02,189 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 63) no Hoare annotation was computed. [2022-07-19 14:07:02,190 INFO L899 garLoopResultBuilder]: For program point L27-1(lines 27 32) no Hoare annotation was computed. [2022-07-19 14:07:02,190 INFO L899 garLoopResultBuilder]: For program point L60-2(lines 60 63) no Hoare annotation was computed. [2022-07-19 14:07:02,190 INFO L895 garLoopResultBuilder]: At program point L27-2(lines 27 32) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_sqrt_~sign~0#1| (_ bv2147483648 32)) (= |ULTIMATE.start___ieee754_sqrt_~x#1| (fp.neg (_ +zero 11 53)))) [2022-07-19 14:07:02,190 INFO L899 garLoopResultBuilder]: For program point L27-3(lines 21 129) no Hoare annotation was computed. [2022-07-19 14:07:02,190 INFO L899 garLoopResultBuilder]: For program point L52-2(lines 52 53) no Hoare annotation was computed. [2022-07-19 14:07:02,190 INFO L895 garLoopResultBuilder]: At program point L52-3(lines 52 53) the Hoare annotation is: false [2022-07-19 14:07:02,190 INFO L899 garLoopResultBuilder]: For program point L52-4(lines 52 53) no Hoare annotation was computed. [2022-07-19 14:07:02,190 INFO L899 garLoopResultBuilder]: For program point L110(lines 110 111) no Hoare annotation was computed. [2022-07-19 14:07:02,190 INFO L899 garLoopResultBuilder]: For program point L110-2(lines 110 111) no Hoare annotation was computed. [2022-07-19 14:07:02,190 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 116) no Hoare annotation was computed. [2022-07-19 14:07:02,190 INFO L902 garLoopResultBuilder]: At program point L160(lines 143 161) the Hoare annotation is: true [2022-07-19 14:07:02,191 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-19 14:07:02,191 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-19 14:07:02,191 INFO L899 garLoopResultBuilder]: For program point L119(lines 119 120) no Hoare annotation was computed. [2022-07-19 14:07:02,191 INFO L899 garLoopResultBuilder]: For program point L119-2(lines 119 120) no Hoare annotation was computed. [2022-07-19 14:07:02,191 INFO L895 garLoopResultBuilder]: At program point L128(lines 21 129) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= |ULTIMATE.start___ieee754_sqrt_#res#1| .cse0) (= |ULTIMATE.start___ieee754_sqrt_~x#1| .cse0))) [2022-07-19 14:07:02,191 INFO L899 garLoopResultBuilder]: For program point L87(lines 87 96) no Hoare annotation was computed. [2022-07-19 14:07:02,191 INFO L899 garLoopResultBuilder]: For program point L87-2(lines 87 96) no Hoare annotation was computed. [2022-07-19 14:07:02,191 INFO L899 garLoopResultBuilder]: For program point L46(lines 46 57) no Hoare annotation was computed. [2022-07-19 14:07:02,191 INFO L899 garLoopResultBuilder]: For program point L46-2(lines 46 57) no Hoare annotation was computed. [2022-07-19 14:07:02,191 INFO L899 garLoopResultBuilder]: For program point L104(lines 104 115) no Hoare annotation was computed. [2022-07-19 14:07:02,191 INFO L899 garLoopResultBuilder]: For program point L38(lines 38 43) no Hoare annotation was computed. [2022-07-19 14:07:02,191 INFO L895 garLoopResultBuilder]: At program point L71-2(lines 71 81) the Hoare annotation is: false [2022-07-19 14:07:02,191 INFO L899 garLoopResultBuilder]: For program point L38-2(lines 38 43) no Hoare annotation was computed. [2022-07-19 14:07:02,191 INFO L899 garLoopResultBuilder]: For program point L71-3(lines 71 81) no Hoare annotation was computed. [2022-07-19 14:07:02,191 INFO L895 garLoopResultBuilder]: At program point L47-2(lines 47 51) the Hoare annotation is: false [2022-07-19 14:07:02,191 INFO L899 garLoopResultBuilder]: For program point L47-3(lines 47 51) no Hoare annotation was computed. [2022-07-19 14:07:02,191 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 42) no Hoare annotation was computed. [2022-07-19 14:07:02,191 INFO L899 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2022-07-19 14:07:02,191 INFO L899 garLoopResultBuilder]: For program point L89(lines 89 90) no Hoare annotation was computed. [2022-07-19 14:07:02,192 INFO L899 garLoopResultBuilder]: For program point L122-1(lines 122 127) no Hoare annotation was computed. [2022-07-19 14:07:02,192 INFO L899 garLoopResultBuilder]: For program point L155-2(lines 155 158) no Hoare annotation was computed. [2022-07-19 14:07:02,192 INFO L895 garLoopResultBuilder]: At program point L122-2(lines 122 127) the Hoare annotation is: false [2022-07-19 14:07:02,192 INFO L899 garLoopResultBuilder]: For program point L89-2(lines 89 90) no Hoare annotation was computed. [2022-07-19 14:07:02,192 INFO L899 garLoopResultBuilder]: For program point L122-3(lines 122 127) no Hoare annotation was computed. [2022-07-19 14:07:02,192 INFO L899 garLoopResultBuilder]: For program point L106(lines 106 114) no Hoare annotation was computed. [2022-07-19 14:07:02,192 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 77) no Hoare annotation was computed. [2022-07-19 14:07:02,192 INFO L899 garLoopResultBuilder]: For program point L73-2(lines 73 77) no Hoare annotation was computed. [2022-07-19 14:07:02,192 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-19 14:07:02,192 INFO L899 garLoopResultBuilder]: For program point L156(line 156) no Hoare annotation was computed. [2022-07-19 14:07:02,192 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 156) no Hoare annotation was computed. [2022-07-19 14:07:02,192 INFO L895 garLoopResultBuilder]: At program point L140(lines 131 141) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short11#1| (= |ULTIMATE.start___ieee754_sqrt_~x#1| (fp.neg (_ +zero 11 53))) (= (_ bv1 32) |ULTIMATE.start___signbit_double_#res#1|)) [2022-07-19 14:07:02,192 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 42) no Hoare annotation was computed. [2022-07-19 14:07:02,192 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-19 14:07:02,192 INFO L899 garLoopResultBuilder]: For program point L92(lines 92 93) no Hoare annotation was computed. [2022-07-19 14:07:02,192 INFO L899 garLoopResultBuilder]: For program point L92-2(lines 92 93) no Hoare annotation was computed. [2022-07-19 14:07:02,192 INFO L895 garLoopResultBuilder]: At program point L84-2(lines 84 100) the Hoare annotation is: false [2022-07-19 14:07:02,192 INFO L899 garLoopResultBuilder]: For program point L84-3(lines 21 129) no Hoare annotation was computed. [2022-07-19 14:07:02,193 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 114) no Hoare annotation was computed. [2022-07-19 14:07:02,193 INFO L899 garLoopResultBuilder]: For program point L134-1(lines 134 138) no Hoare annotation was computed. [2022-07-19 14:07:02,193 INFO L895 garLoopResultBuilder]: At program point L134-2(lines 134 138) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= |ULTIMATE.start___ieee754_sqrt_#res#1| .cse0) |ULTIMATE.start_main_#t~short11#1| (= .cse0 |ULTIMATE.start___signbit_double_~x#1|) (= |ULTIMATE.start___ieee754_sqrt_~x#1| .cse0) (= |ULTIMATE.start_main_~res~0#1| .cse0))) [2022-07-19 14:07:02,193 INFO L899 garLoopResultBuilder]: For program point L134-3(lines 134 138) no Hoare annotation was computed. [2022-07-19 14:07:02,195 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-07-19 14:07:02,196 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 14:07:02,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 02:07:02 BoogieIcfgContainer [2022-07-19 14:07:02,206 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 14:07:02,206 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 14:07:02,206 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 14:07:02,207 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 14:07:02,207 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 02:06:51" (3/4) ... [2022-07-19 14:07:02,209 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-19 14:07:02,216 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-07-19 14:07:02,216 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-07-19 14:07:02,216 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-19 14:07:02,217 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 14:07:02,233 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2022-07-19 14:07:02,234 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2022-07-19 14:07:02,234 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (aux-res == -0.0 && __signbit_double(res) == 1-aux && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && 1bv32 == \result [2022-07-19 14:07:02,245 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 14:07:02,245 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 14:07:02,246 INFO L158 Benchmark]: Toolchain (without parser) took 13829.36ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 45.7MB in the beginning and 39.4MB in the end (delta: 6.3MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. [2022-07-19 14:07:02,246 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 65.0MB. Free memory was 47.3MB in the beginning and 47.3MB in the end (delta: 50.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 14:07:02,246 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.09ms. Allocated memory is still 65.0MB. Free memory was 45.6MB in the beginning and 45.2MB in the end (delta: 333.2kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-19 14:07:02,246 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.61ms. Allocated memory is still 65.0MB. Free memory was 45.1MB in the beginning and 43.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 14:07:02,246 INFO L158 Benchmark]: Boogie Preprocessor took 54.18ms. Allocated memory is still 65.0MB. Free memory was 43.0MB in the beginning and 41.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 14:07:02,247 INFO L158 Benchmark]: RCFGBuilder took 2427.58ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 41.1MB in the beginning and 58.0MB in the end (delta: -16.9MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2022-07-19 14:07:02,247 INFO L158 Benchmark]: TraceAbstraction took 10955.89ms. Allocated memory is still 81.8MB. Free memory was 57.7MB in the beginning and 43.6MB in the end (delta: 14.0MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2022-07-19 14:07:02,247 INFO L158 Benchmark]: Witness Printer took 38.86ms. Allocated memory is still 81.8MB. Free memory was 43.6MB in the beginning and 39.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-19 14:07:02,248 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 65.0MB. Free memory was 47.3MB in the beginning and 47.3MB in the end (delta: 50.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.09ms. Allocated memory is still 65.0MB. Free memory was 45.6MB in the beginning and 45.2MB in the end (delta: 333.2kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.61ms. Allocated memory is still 65.0MB. Free memory was 45.1MB in the beginning and 43.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.18ms. Allocated memory is still 65.0MB. Free memory was 43.0MB in the beginning and 41.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2427.58ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 41.1MB in the beginning and 58.0MB in the end (delta: -16.9MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. * TraceAbstraction took 10955.89ms. Allocated memory is still 81.8MB. Free memory was 57.7MB in the beginning and 43.6MB in the end (delta: 14.0MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. * Witness Printer took 38.86ms. Allocated memory is still 81.8MB. Free memory was 43.6MB in the beginning and 39.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 156]: 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, 53 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 167 SdHoareTripleChecker+Valid, 4.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 167 mSDsluCounter, 989 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 73 IncrementalHoareTripleChecker+Unchecked, 660 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 329 mSDtfsCounter, 69 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred 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, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 15 NumberOfFragments, 50 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 29 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 74 ConstructedInterpolants, 11 QuantifiedInterpolants, 328 SizeOfPredicates, 33 NumberOfNonLiveVariables, 308 ConjunctsInSsa, 54 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: 71]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: (((\result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: (aux-res == -0.0 && __signbit_double(res) == 1-aux && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && 1bv32 == \result - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: sign == 2147483648bv32 && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) RESULT: Ultimate proved your program to be correct! [2022-07-19 14:07:02,371 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