./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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/floats-cbmc-regression/float-no-simp6.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 8e577c29310ee115b251b151455f7420e49d4b5a193d4ed2cde0dcf868c272d0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:20:02,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:20:02,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:20:02,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:20:02,551 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:20:02,553 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:20:02,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:20:02,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:20:02,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:20:02,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:20:02,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:20:02,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:20:02,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:20:02,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:20:02,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:20:02,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:20:02,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:20:02,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:20:02,569 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:20:02,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:20:02,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:20:02,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:20:02,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:20:02,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:20:02,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:20:02,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:20:02,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:20:02,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:20:02,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:20:02,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:20:02,582 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:20:02,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:20:02,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:20:02,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:20:02,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:20:02,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:20:02,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:20:02,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:20:02,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:20:02,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:20:02,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:20:02,587 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 16:20:02,608 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:20:02,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:20:02,609 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:20:02,609 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:20:02,610 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:20:02,610 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:20:02,610 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:20:02,611 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:20:02,611 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:20:02,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:20:02,612 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:20:02,612 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 16:20:02,612 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:20:02,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:20:02,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:20:02,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:20:02,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:20:02,613 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:20:02,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:20:02,613 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:20:02,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:20:02,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:20:02,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:20:02,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:20:02,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:20:02,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:20:02,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:20:02,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:20:02,614 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 16:20:02,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 16:20:02,614 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:20:02,615 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:20:02,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:20:02,615 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e577c29310ee115b251b151455f7420e49d4b5a193d4ed2cde0dcf868c272d0 [2022-02-20 16:20:02,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:20:02,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:20:02,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:20:02,777 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:20:02,778 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:20:02,778 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c [2022-02-20 16:20:02,838 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cefdc864e/2482f3d7b2a84170ad5a622538502f7e/FLAG6826477c0 [2022-02-20 16:20:03,167 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:20:03,167 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c [2022-02-20 16:20:03,172 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cefdc864e/2482f3d7b2a84170ad5a622538502f7e/FLAG6826477c0 [2022-02-20 16:20:03,181 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cefdc864e/2482f3d7b2a84170ad5a622538502f7e [2022-02-20 16:20:03,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:20:03,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:20:03,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:20:03,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:20:03,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:20:03,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:20:03" (1/1) ... [2022-02-20 16:20:03,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4abd9266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:03, skipping insertion in model container [2022-02-20 16:20:03,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:20:03" (1/1) ... [2022-02-20 16:20:03,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:20:03,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:20:03,334 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/floats-cbmc-regression/float-no-simp6.c[1010,1023] [2022-02-20 16:20:03,339 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/floats-cbmc-regression/float-no-simp6.c[1167,1180] [2022-02-20 16:20:03,341 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/floats-cbmc-regression/float-no-simp6.c[1293,1306] [2022-02-20 16:20:03,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:20:03,348 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:20:03,365 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/floats-cbmc-regression/float-no-simp6.c[1010,1023] [2022-02-20 16:20:03,373 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/floats-cbmc-regression/float-no-simp6.c[1167,1180] [2022-02-20 16:20:03,380 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/floats-cbmc-regression/float-no-simp6.c[1293,1306] [2022-02-20 16:20:03,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:20:03,390 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:20:03,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:03 WrapperNode [2022-02-20 16:20:03,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:20:03,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:20:03,391 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:20:03,391 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:20:03,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:03" (1/1) ... [2022-02-20 16:20:03,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:03" (1/1) ... [2022-02-20 16:20:03,411 INFO L137 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 30 [2022-02-20 16:20:03,411 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:20:03,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:20:03,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:20:03,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:20:03,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:03" (1/1) ... [2022-02-20 16:20:03,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:03" (1/1) ... [2022-02-20 16:20:03,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:03" (1/1) ... [2022-02-20 16:20:03,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:03" (1/1) ... [2022-02-20 16:20:03,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:03" (1/1) ... [2022-02-20 16:20:03,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:03" (1/1) ... [2022-02-20 16:20:03,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:03" (1/1) ... [2022-02-20 16:20:03,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:20:03,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:20:03,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:20:03,423 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:20:03,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:03" (1/1) ... [2022-02-20 16:20:03,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:20:03,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:20:03,454 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) [2022-02-20 16:20:03,460 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 [2022-02-20 16:20:03,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:20:03,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 16:20:03,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:20:03,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:20:03,528 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:20:03,529 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:20:03,653 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:20:03,657 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:20:03,657 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 16:20:03,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:20:03 BoogieIcfgContainer [2022-02-20 16:20:03,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:20:03,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:20:03,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:20:03,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:20:03,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:20:03" (1/3) ... [2022-02-20 16:20:03,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58dd114d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:20:03, skipping insertion in model container [2022-02-20 16:20:03,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:03" (2/3) ... [2022-02-20 16:20:03,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58dd114d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:20:03, skipping insertion in model container [2022-02-20 16:20:03,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:20:03" (3/3) ... [2022-02-20 16:20:03,672 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp6.c [2022-02-20 16:20:03,676 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:20:03,676 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-02-20 16:20:03,712 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:20:03,717 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 16:20:03,720 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-20 16:20:03,731 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:20:03,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-02-20 16:20:03,735 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:20:03,735 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2022-02-20 16:20:03,736 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:20:03,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:20:03,739 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-02-20 16:20:03,747 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:20:03,747 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781167836] [2022-02-20 16:20:03,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:20:03,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:20:03,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:20:03,805 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 16:20:03,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:20:03,837 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 16:20:03,838 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 16:20:03,839 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-20 16:20:03,841 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-02-20 16:20:03,842 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-02-20 16:20:03,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 16:20:03,845 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-20 16:20:03,847 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 16:20:03,867 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 16:20:03,867 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 16:20:03,867 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2022-02-20 16:20:03,867 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2022-02-20 16:20:03,868 WARN L170 areAnnotationChecker]: L25-1 has no Hoare annotation [2022-02-20 16:20:03,868 WARN L170 areAnnotationChecker]: L25-1 has no Hoare annotation [2022-02-20 16:20:03,868 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2022-02-20 16:20:03,869 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2022-02-20 16:20:03,869 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2022-02-20 16:20:03,869 WARN L170 areAnnotationChecker]: L35-1 has no Hoare annotation [2022-02-20 16:20:03,869 WARN L170 areAnnotationChecker]: L35-1 has no Hoare annotation [2022-02-20 16:20:03,869 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2022-02-20 16:20:03,870 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2022-02-20 16:20:03,870 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2022-02-20 16:20:03,870 WARN L170 areAnnotationChecker]: L44-1 has no Hoare annotation [2022-02-20 16:20:03,870 WARN L170 areAnnotationChecker]: L44-1 has no Hoare annotation [2022-02-20 16:20:03,870 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2022-02-20 16:20:03,870 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2022-02-20 16:20:03,871 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:20:03,871 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-02-20 16:20:03,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:20:03 BoogieIcfgContainer [2022-02-20 16:20:03,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 16:20:03,875 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 16:20:03,875 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 16:20:03,875 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 16:20:03,875 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:20:03" (3/4) ... [2022-02-20 16:20:03,878 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-20 16:20:03,878 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 16:20:03,880 INFO L158 Benchmark]: Toolchain (without parser) took 695.41ms. Allocated memory is still 125.8MB. Free memory was 93.5MB in the beginning and 74.4MB in the end (delta: 19.1MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2022-02-20 16:20:03,880 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 81.8MB. Free memory was 39.7MB in the beginning and 39.7MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:20:03,881 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.39ms. Allocated memory is still 125.8MB. Free memory was 93.5MB in the beginning and 100.0MB in the end (delta: -6.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-20 16:20:03,881 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.39ms. Allocated memory is still 125.8MB. Free memory was 100.0MB in the beginning and 98.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:20:03,886 INFO L158 Benchmark]: Boogie Preprocessor took 10.74ms. Allocated memory is still 125.8MB. Free memory was 98.7MB in the beginning and 97.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:20:03,886 INFO L158 Benchmark]: RCFGBuilder took 235.45ms. Allocated memory is still 125.8MB. Free memory was 97.4MB in the beginning and 89.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-20 16:20:03,887 INFO L158 Benchmark]: TraceAbstraction took 212.41ms. Allocated memory is still 125.8MB. Free memory was 88.3MB in the beginning and 74.8MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-20 16:20:03,888 INFO L158 Benchmark]: Witness Printer took 3.86ms. Allocated memory is still 125.8MB. Free memory was 74.8MB in the beginning and 74.4MB in the end (delta: 393.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:20:03,893 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 81.8MB. Free memory was 39.7MB in the beginning and 39.7MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 205.39ms. Allocated memory is still 125.8MB. Free memory was 93.5MB in the beginning and 100.0MB in the end (delta: -6.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.39ms. Allocated memory is still 125.8MB. Free memory was 100.0MB in the beginning and 98.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 10.74ms. Allocated memory is still 125.8MB. Free memory was 98.7MB in the beginning and 97.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 235.45ms. Allocated memory is still 125.8MB. Free memory was 97.4MB in the beginning and 89.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 212.41ms. Allocated memory is still 125.8MB. Free memory was 88.3MB in the beginning and 74.8MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 3.86ms. Allocated memory is still 125.8MB. Free memory was 74.8MB in the beginning and 74.4MB in the end (delta: 393.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 25]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 25, overapproximation of someBinaryArithmeticFLOAToperation at line 23. Possible FailurePath: [L49] CALL multiply() [L20] float f1=0x1.000000p-1f; [L21] float f2=0x1.fffffep-126f; [L23] float res = f1 * f2; VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] [L25] COND TRUE !(res == 0x1.0p-126f) VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] [L25] reach_error() VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] - UnprovableResult [Line: 35]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2022-02-20 16:20:03,923 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 -ea -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/floats-cbmc-regression/float-no-simp6.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 8e577c29310ee115b251b151455f7420e49d4b5a193d4ed2cde0dcf868c272d0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:20:05,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:20:05,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:20:05,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:20:05,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:20:05,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:20:05,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:20:05,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:20:05,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:20:05,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:20:05,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:20:05,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:20:05,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:20:05,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:20:05,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:20:05,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:20:05,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:20:05,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:20:05,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:20:05,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:20:05,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:20:05,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:20:05,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:20:05,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:20:05,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:20:05,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:20:05,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:20:05,598 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:20:05,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:20:05,599 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:20:05,599 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:20:05,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:20:05,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:20:05,603 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:20:05,604 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:20:05,604 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:20:05,605 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:20:05,606 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:20:05,606 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:20:05,606 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:20:05,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:20:05,620 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 16:20:05,639 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:20:05,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:20:05,644 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:20:05,644 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:20:05,645 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:20:05,645 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:20:05,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:20:05,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:20:05,646 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:20:05,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:20:05,647 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:20:05,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:20:05,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:20:05,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:20:05,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:20:05,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:20:05,648 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 16:20:05,648 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 16:20:05,648 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 16:20:05,648 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:20:05,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:20:05,648 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:20:05,649 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:20:05,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:20:05,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:20:05,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:20:05,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:20:05,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:20:05,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:20:05,650 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:20:05,650 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 16:20:05,650 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 16:20:05,650 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:20:05,650 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:20:05,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:20:05,650 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 16:20:05,651 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e577c29310ee115b251b151455f7420e49d4b5a193d4ed2cde0dcf868c272d0 [2022-02-20 16:20:05,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:20:05,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:20:05,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:20:05,955 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:20:05,956 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:20:05,958 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c [2022-02-20 16:20:06,008 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c1ecbdaf/a9eed2b356064bc2804971bab4dba796/FLAGff4635a58 [2022-02-20 16:20:06,379 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:20:06,379 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c [2022-02-20 16:20:06,383 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c1ecbdaf/a9eed2b356064bc2804971bab4dba796/FLAGff4635a58 [2022-02-20 16:20:06,396 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c1ecbdaf/a9eed2b356064bc2804971bab4dba796 [2022-02-20 16:20:06,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:20:06,400 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:20:06,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:20:06,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:20:06,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:20:06,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:20:06" (1/1) ... [2022-02-20 16:20:06,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e0790c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:06, skipping insertion in model container [2022-02-20 16:20:06,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:20:06" (1/1) ... [2022-02-20 16:20:06,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:20:06,420 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:20:06,530 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/floats-cbmc-regression/float-no-simp6.c[1010,1023] [2022-02-20 16:20:06,537 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/floats-cbmc-regression/float-no-simp6.c[1167,1180] [2022-02-20 16:20:06,541 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/floats-cbmc-regression/float-no-simp6.c[1293,1306] [2022-02-20 16:20:06,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:20:06,554 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:20:06,607 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/floats-cbmc-regression/float-no-simp6.c[1010,1023] [2022-02-20 16:20:06,613 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/floats-cbmc-regression/float-no-simp6.c[1167,1180] [2022-02-20 16:20:06,615 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/floats-cbmc-regression/float-no-simp6.c[1293,1306] [2022-02-20 16:20:06,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:20:06,625 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:20:06,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:06 WrapperNode [2022-02-20 16:20:06,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:20:06,626 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:20:06,626 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:20:06,626 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:20:06,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:06" (1/1) ... [2022-02-20 16:20:06,646 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:06" (1/1) ... [2022-02-20 16:20:06,658 INFO L137 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 31 [2022-02-20 16:20:06,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:20:06,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:20:06,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:20:06,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:20:06,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:06" (1/1) ... [2022-02-20 16:20:06,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:06" (1/1) ... [2022-02-20 16:20:06,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:06" (1/1) ... [2022-02-20 16:20:06,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:06" (1/1) ... [2022-02-20 16:20:06,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:06" (1/1) ... [2022-02-20 16:20:06,675 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:06" (1/1) ... [2022-02-20 16:20:06,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:06" (1/1) ... [2022-02-20 16:20:06,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:20:06,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:20:06,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:20:06,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:20:06,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:06" (1/1) ... [2022-02-20 16:20:06,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:20:06,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:20:06,705 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) [2022-02-20 16:20:06,707 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 [2022-02-20 16:20:06,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:20:06,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 16:20:06,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:20:06,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:20:06,789 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:20:06,791 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:20:07,564 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:20:07,568 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:20:07,568 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 16:20:07,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:20:07 BoogieIcfgContainer [2022-02-20 16:20:07,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:20:07,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:20:07,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:20:07,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:20:07,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:20:06" (1/3) ... [2022-02-20 16:20:07,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@416a7489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:20:07, skipping insertion in model container [2022-02-20 16:20:07,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:20:06" (2/3) ... [2022-02-20 16:20:07,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@416a7489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:20:07, skipping insertion in model container [2022-02-20 16:20:07,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:20:07" (3/3) ... [2022-02-20 16:20:07,578 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp6.c [2022-02-20 16:20:07,582 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:20:07,582 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-02-20 16:20:07,673 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:20:07,679 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 16:20:07,680 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-20 16:20:07,699 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:20:07,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-02-20 16:20:07,702 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:20:07,702 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2022-02-20 16:20:07,703 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:20:07,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:20:07,706 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-02-20 16:20:07,714 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 16:20:07,715 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097501171] [2022-02-20 16:20:07,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:20:07,716 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 16:20:07,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 16:20:07,718 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) [2022-02-20 16:20:07,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-02-20 16:20:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:20:07,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 5 conjunts are in the unsatisfiable core [2022-02-20 16:20:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:20:07,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:20:07,921 INFO L290 TraceCheckUtils]: 0: Hoare triple {20#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(17bv32, 2bv32);call #Ultimate.allocInit(12bv32, 3bv32); {25#(= currentRoundingMode roundNearestTiesToEven)} is VALID [2022-02-20 16:20:07,923 INFO L290 TraceCheckUtils]: 1: Hoare triple {25#(= currentRoundingMode roundNearestTiesToEven)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;assume { :begin_inline_multiply } true;havoc multiply_~f1~0#1, multiply_~f2~0#1, multiply_~res~0#1;multiply_~f1~0#1 := ~to_fp~FLOAT(currentRoundingMode, 0.5);multiply_~f2~0#1 := ~to_fp~FLOAT(currentRoundingMode, 2.3509885615147286E-38);multiply_~res~0#1 := ~fp.mul~FLOAT(currentRoundingMode, multiply_~f1~0#1, multiply_~f2~0#1); {29#(and (= |ULTIMATE.start_multiply_~res~0#1| (fp.mul currentRoundingMode ((_ to_fp 8 24) currentRoundingMode (/ 1.0 2.0)) ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 713623846352979940529142984724747568191373312.0)))) (= currentRoundingMode roundNearestTiesToEven))} is VALID [2022-02-20 16:20:07,924 INFO L290 TraceCheckUtils]: 2: Hoare triple {29#(and (= |ULTIMATE.start_multiply_~res~0#1| (fp.mul currentRoundingMode ((_ to_fp 8 24) currentRoundingMode (/ 1.0 2.0)) ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 713623846352979940529142984724747568191373312.0)))) (= currentRoundingMode roundNearestTiesToEven))} assume !~fp.eq~FLOAT(multiply_~res~0#1, ~to_fp~FLOAT(currentRoundingMode, 1.1754943508222875E-38)); {21#false} is VALID [2022-02-20 16:20:07,924 INFO L290 TraceCheckUtils]: 3: Hoare triple {21#false} assume !false; {21#false} is VALID [2022-02-20 16:20:07,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:20:07,925 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 16:20:07,926 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 16:20:07,926 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1097501171] [2022-02-20 16:20:07,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1097501171] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:20:07,927 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:20:07,927 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 16:20:07,928 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306652853] [2022-02-20 16:20:07,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:20:07,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-02-20 16:20:07,933 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:20:07,935 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-02-20 16:20:07,973 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:20:07,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-20 16:20:07,973 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 16:20:07,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-20 16:20:07,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-20 16:20:07,989 INFO L87 Difference]: Start difference. First operand has 17 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-02-20 16:20:08,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:20:08,343 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2022-02-20 16:20:08,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 16:20:08,344 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-02-20 16:20:08,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:20:08,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-02-20 16:20:08,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2022-02-20 16:20:08,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-02-20 16:20:08,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2022-02-20 16:20:08,351 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 32 transitions. [2022-02-20 16:20:08,748 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:20:08,754 INFO L225 Difference]: With dead ends: 29 [2022-02-20 16:20:08,754 INFO L226 Difference]: Without dead ends: 11 [2022-02-20 16:20:08,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-20 16:20:08,761 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-20 16:20:08,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 6 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-20 16:20:08,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-02-20 16:20:08,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-02-20 16:20:08,781 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:20:08,782 INFO L82 GeneralOperation]: Start isEquivalent. First operand 11 states. Second operand has 11 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:20:08,782 INFO L74 IsIncluded]: Start isIncluded. First operand 11 states. Second operand has 11 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:20:08,783 INFO L87 Difference]: Start difference. First operand 11 states. Second operand has 11 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:20:08,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:20:08,789 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2022-02-20 16:20:08,789 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2022-02-20 16:20:08,789 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:20:08,789 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:20:08,790 INFO L74 IsIncluded]: Start isIncluded. First operand has 11 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 11 states. [2022-02-20 16:20:08,790 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 11 states. [2022-02-20 16:20:08,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:20:08,791 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2022-02-20 16:20:08,791 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2022-02-20 16:20:08,792 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:20:08,792 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:20:08,792 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:20:08,792 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:20:08,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:20:08,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2022-02-20 16:20:08,795 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 4 [2022-02-20 16:20:08,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:20:08,795 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2022-02-20 16:20:08,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-02-20 16:20:08,796 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2022-02-20 16:20:08,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-02-20 16:20:08,797 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:20:08,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-02-20 16:20:08,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-02-20 16:20:09,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 16:20:09,004 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:20:09,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:20:09,005 INFO L85 PathProgramCache]: Analyzing trace with hash 889629862, now seen corresponding path program 1 times [2022-02-20 16:20:09,005 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 16:20:09,005 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [834973341] [2022-02-20 16:20:09,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:20:09,006 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 16:20:09,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 16:20:09,007 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) [2022-02-20 16:20:09,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-02-20 16:20:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:20:09,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 5 conjunts are in the unsatisfiable core [2022-02-20 16:20:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:20:09,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:20:09,276 INFO L290 TraceCheckUtils]: 0: Hoare triple {97#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(17bv32, 2bv32);call #Ultimate.allocInit(12bv32, 3bv32); {102#(= currentRoundingMode roundNearestTiesToEven)} is VALID [2022-02-20 16:20:09,277 INFO L290 TraceCheckUtils]: 1: Hoare triple {102#(= currentRoundingMode roundNearestTiesToEven)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;assume { :begin_inline_multiply } true;havoc multiply_~f1~0#1, multiply_~f2~0#1, multiply_~res~0#1;multiply_~f1~0#1 := ~to_fp~FLOAT(currentRoundingMode, 0.5);multiply_~f2~0#1 := ~to_fp~FLOAT(currentRoundingMode, 2.3509885615147286E-38);multiply_~res~0#1 := ~fp.mul~FLOAT(currentRoundingMode, multiply_~f1~0#1, multiply_~f2~0#1); {102#(= currentRoundingMode roundNearestTiesToEven)} is VALID [2022-02-20 16:20:09,278 INFO L290 TraceCheckUtils]: 2: Hoare triple {102#(= currentRoundingMode roundNearestTiesToEven)} assume !!~fp.eq~FLOAT(multiply_~res~0#1, ~to_fp~FLOAT(currentRoundingMode, 1.1754943508222875E-38)); {102#(= currentRoundingMode roundNearestTiesToEven)} is VALID [2022-02-20 16:20:09,278 INFO L290 TraceCheckUtils]: 3: Hoare triple {102#(= currentRoundingMode roundNearestTiesToEven)} assume { :end_inline_multiply } true;assume { :begin_inline_divide } true;havoc divide_~f1~1#1, divide_~f2~1#1, divide_~res~1#1;divide_~f1~1#1 := ~to_fp~FLOAT(currentRoundingMode, 2.0);divide_~f2~1#1 := ~to_fp~FLOAT(currentRoundingMode, 2.3509885615147286E-38);divide_~res~1#1 := ~fp.div~FLOAT(currentRoundingMode, divide_~f2~1#1, divide_~f1~1#1); {112#(and (= |ULTIMATE.start_divide_~res~1#1| (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 713623846352979940529142984724747568191373312.0)) ((_ to_fp 8 24) currentRoundingMode 2.0))) (= currentRoundingMode roundNearestTiesToEven))} is VALID [2022-02-20 16:20:09,279 INFO L290 TraceCheckUtils]: 4: Hoare triple {112#(and (= |ULTIMATE.start_divide_~res~1#1| (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 713623846352979940529142984724747568191373312.0)) ((_ to_fp 8 24) currentRoundingMode 2.0))) (= currentRoundingMode roundNearestTiesToEven))} assume !~fp.eq~FLOAT(divide_~res~1#1, ~to_fp~FLOAT(currentRoundingMode, 1.1754943508222875E-38)); {98#false} is VALID [2022-02-20 16:20:09,279 INFO L290 TraceCheckUtils]: 5: Hoare triple {98#false} assume !false; {98#false} is VALID [2022-02-20 16:20:09,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:20:09,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 16:20:09,280 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 16:20:09,280 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [834973341] [2022-02-20 16:20:09,280 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [834973341] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:20:09,280 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:20:09,281 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 16:20:09,281 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684872306] [2022-02-20 16:20:09,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:20:09,282 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-02-20 16:20:09,282 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:20:09,282 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-02-20 16:20:09,869 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:20:09,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-20 16:20:09,870 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 16:20:09,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-20 16:20:09,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-20 16:20:09,870 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-02-20 16:20:10,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:20:10,227 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2022-02-20 16:20:10,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 16:20:10,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-02-20 16:20:10,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:20:10,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-02-20 16:20:10,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2022-02-20 16:20:10,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-02-20 16:20:10,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2022-02-20 16:20:10,229 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 10 transitions. [2022-02-20 16:20:10,689 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:20:10,689 INFO L225 Difference]: With dead ends: 11 [2022-02-20 16:20:10,690 INFO L226 Difference]: Without dead ends: 9 [2022-02-20 16:20:10,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-20 16:20:10,691 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-20 16:20:10,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 2 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-20 16:20:10,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-02-20 16:20:10,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-02-20 16:20:10,693 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:20:10,693 INFO L82 GeneralOperation]: Start isEquivalent. First operand 9 states. Second operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 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) [2022-02-20 16:20:10,693 INFO L74 IsIncluded]: Start isIncluded. First operand 9 states. Second operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 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) [2022-02-20 16:20:10,693 INFO L87 Difference]: Start difference. First operand 9 states. Second operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 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) [2022-02-20 16:20:10,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:20:10,694 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2022-02-20 16:20:10,694 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-02-20 16:20:10,694 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:20:10,694 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:20:10,694 INFO L74 IsIncluded]: Start isIncluded. First operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 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) Second operand 9 states. [2022-02-20 16:20:10,695 INFO L87 Difference]: Start difference. First operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 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) Second operand 9 states. [2022-02-20 16:20:10,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:20:10,695 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2022-02-20 16:20:10,695 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-02-20 16:20:10,696 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:20:10,696 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:20:10,696 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:20:10,696 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:20:10,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 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) [2022-02-20 16:20:10,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-02-20 16:20:10,697 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 6 [2022-02-20 16:20:10,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:20:10,698 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-02-20 16:20:10,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-02-20 16:20:10,698 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-02-20 16:20:10,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-02-20 16:20:10,698 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:20:10,699 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:20:10,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-02-20 16:20:10,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 16:20:10,910 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:20:10,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:20:10,910 INFO L85 PathProgramCache]: Analyzing trace with hash 235930184, now seen corresponding path program 1 times [2022-02-20 16:20:10,911 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 16:20:10,911 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [791533997] [2022-02-20 16:20:10,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:20:10,911 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 16:20:10,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 16:20:10,912 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) [2022-02-20 16:20:10,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-02-20 16:20:11,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:20:11,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-20 16:20:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:20:11,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:20:11,267 INFO L290 TraceCheckUtils]: 0: Hoare triple {156#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(17bv32, 2bv32);call #Ultimate.allocInit(12bv32, 3bv32); {161#(= currentRoundingMode roundNearestTiesToEven)} is VALID [2022-02-20 16:20:11,268 INFO L290 TraceCheckUtils]: 1: Hoare triple {161#(= currentRoundingMode roundNearestTiesToEven)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;assume { :begin_inline_multiply } true;havoc multiply_~f1~0#1, multiply_~f2~0#1, multiply_~res~0#1;multiply_~f1~0#1 := ~to_fp~FLOAT(currentRoundingMode, 0.5);multiply_~f2~0#1 := ~to_fp~FLOAT(currentRoundingMode, 2.3509885615147286E-38);multiply_~res~0#1 := ~fp.mul~FLOAT(currentRoundingMode, multiply_~f1~0#1, multiply_~f2~0#1); {161#(= currentRoundingMode roundNearestTiesToEven)} is VALID [2022-02-20 16:20:11,268 INFO L290 TraceCheckUtils]: 2: Hoare triple {161#(= currentRoundingMode roundNearestTiesToEven)} assume !!~fp.eq~FLOAT(multiply_~res~0#1, ~to_fp~FLOAT(currentRoundingMode, 1.1754943508222875E-38)); {161#(= currentRoundingMode roundNearestTiesToEven)} is VALID [2022-02-20 16:20:11,268 INFO L290 TraceCheckUtils]: 3: Hoare triple {161#(= currentRoundingMode roundNearestTiesToEven)} assume { :end_inline_multiply } true;assume { :begin_inline_divide } true;havoc divide_~f1~1#1, divide_~f2~1#1, divide_~res~1#1;divide_~f1~1#1 := ~to_fp~FLOAT(currentRoundingMode, 2.0);divide_~f2~1#1 := ~to_fp~FLOAT(currentRoundingMode, 2.3509885615147286E-38);divide_~res~1#1 := ~fp.div~FLOAT(currentRoundingMode, divide_~f2~1#1, divide_~f1~1#1); {161#(= currentRoundingMode roundNearestTiesToEven)} is VALID [2022-02-20 16:20:11,269 INFO L290 TraceCheckUtils]: 4: Hoare triple {161#(= currentRoundingMode roundNearestTiesToEven)} assume !!~fp.eq~FLOAT(divide_~res~1#1, ~to_fp~FLOAT(currentRoundingMode, 1.1754943508222875E-38)); {161#(= currentRoundingMode roundNearestTiesToEven)} is VALID [2022-02-20 16:20:11,270 INFO L290 TraceCheckUtils]: 5: Hoare triple {161#(= currentRoundingMode roundNearestTiesToEven)} assume { :end_inline_divide } true;assume { :begin_inline_cast } true;havoc cast_~d~0#1, cast_~f~0#1;cast_~d~0#1 := ~to_fp~DOUBLE(currentRoundingMode, 1.1754942807573643E-38);cast_~f~0#1 := ~convertDOUBLEToFLOAT(currentRoundingMode, cast_~d~0#1); {177#(and (= |ULTIMATE.start_cast_~f~0#1| ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 16777215.0 1427247692705959881058285969449495136382746624.0)))) (= currentRoundingMode roundNearestTiesToEven))} is VALID [2022-02-20 16:20:11,270 INFO L290 TraceCheckUtils]: 6: Hoare triple {177#(and (= |ULTIMATE.start_cast_~f~0#1| ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 16777215.0 1427247692705959881058285969449495136382746624.0)))) (= currentRoundingMode roundNearestTiesToEven))} assume !~fp.eq~FLOAT(cast_~f~0#1, ~to_fp~FLOAT(currentRoundingMode, 1.1754943508222875E-38)); {157#false} is VALID [2022-02-20 16:20:11,271 INFO L290 TraceCheckUtils]: 7: Hoare triple {157#false} assume !false; {157#false} is VALID [2022-02-20 16:20:11,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:20:11,271 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 16:20:11,271 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 16:20:11,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [791533997] [2022-02-20 16:20:11,271 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [791533997] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:20:11,271 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:20:11,271 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 16:20:11,272 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3746581] [2022-02-20 16:20:11,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:20:11,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 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 [2022-02-20 16:20:11,272 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:20:11,272 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 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) [2022-02-20 16:20:11,455 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 8 edges. 8 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:20:11,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-20 16:20:11,456 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 16:20:11,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-20 16:20:11,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-20 16:20:11,457 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 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) [2022-02-20 16:20:12,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:20:12,040 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2022-02-20 16:20:12,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 16:20:12,041 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 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 [2022-02-20 16:20:12,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:20:12,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 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) [2022-02-20 16:20:12,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2022-02-20 16:20:12,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 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) [2022-02-20 16:20:12,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2022-02-20 16:20:12,046 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 8 transitions. [2022-02-20 16:20:12,227 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 8 edges. 8 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:20:12,227 INFO L225 Difference]: With dead ends: 9 [2022-02-20 16:20:12,227 INFO L226 Difference]: Without dead ends: 0 [2022-02-20 16:20:12,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-20 16:20:12,228 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-20 16:20:12,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-20 16:20:12,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-20 16:20:12,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-20 16:20:12,229 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:20:12,229 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second 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) [2022-02-20 16:20:12,230 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second 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) [2022-02-20 16:20:12,230 INFO L87 Difference]: Start difference. First operand 0 states. Second 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) [2022-02-20 16:20:12,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:20:12,230 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-02-20 16:20:12,230 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-20 16:20:12,230 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:20:12,230 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:20:12,230 INFO L74 IsIncluded]: Start isIncluded. First 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) Second operand 0 states. [2022-02-20 16:20:12,230 INFO L87 Difference]: Start difference. First 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) Second operand 0 states. [2022-02-20 16:20:12,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:20:12,231 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-02-20 16:20:12,231 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-20 16:20:12,231 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:20:12,231 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:20:12,231 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:20:12,231 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:20:12,231 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) [2022-02-20 16:20:12,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-20 16:20:12,232 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-02-20 16:20:12,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:20:12,232 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-20 16:20:12,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 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) [2022-02-20 16:20:12,232 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-20 16:20:12,232 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:20:12,234 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-20 16:20:12,234 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-02-20 16:20:12,234 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-02-20 16:20:12,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-02-20 16:20:12,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 16:20:12,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-02-20 16:20:12,439 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-02-20 16:20:12,439 INFO L858 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2022-02-20 16:20:12,439 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 35) no Hoare annotation was computed. [2022-02-20 16:20:12,439 INFO L858 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2022-02-20 16:20:12,439 INFO L858 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2022-02-20 16:20:12,439 INFO L858 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2022-02-20 16:20:12,439 INFO L858 garLoopResultBuilder]: For program point L38(lines 38 45) no Hoare annotation was computed. [2022-02-20 16:20:12,439 INFO L858 garLoopResultBuilder]: For program point L5(lines 5 26) no Hoare annotation was computed. [2022-02-20 16:20:12,439 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-02-20 16:20:12,440 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-02-20 16:20:12,440 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-02-20 16:20:12,440 INFO L858 garLoopResultBuilder]: For program point L28(lines 28 36) no Hoare annotation was computed. [2022-02-20 16:20:12,440 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2022-02-20 16:20:12,440 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2022-02-20 16:20:12,440 INFO L858 garLoopResultBuilder]: For program point L47(lines 47 52) no Hoare annotation was computed. [2022-02-20 16:20:12,440 INFO L858 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-02-20 16:20:12,440 INFO L858 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2022-02-20 16:20:12,443 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-02-20 16:20:12,446 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 16:20:12,450 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 16:20:12,450 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 16:20:12,450 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2022-02-20 16:20:12,450 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2022-02-20 16:20:12,451 WARN L170 areAnnotationChecker]: L25-1 has no Hoare annotation [2022-02-20 16:20:12,451 WARN L170 areAnnotationChecker]: L25-1 has no Hoare annotation [2022-02-20 16:20:12,451 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2022-02-20 16:20:12,451 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2022-02-20 16:20:12,451 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2022-02-20 16:20:12,451 WARN L170 areAnnotationChecker]: L35-1 has no Hoare annotation [2022-02-20 16:20:12,451 WARN L170 areAnnotationChecker]: L35-1 has no Hoare annotation [2022-02-20 16:20:12,451 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2022-02-20 16:20:12,451 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2022-02-20 16:20:12,451 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2022-02-20 16:20:12,451 WARN L170 areAnnotationChecker]: L44-1 has no Hoare annotation [2022-02-20 16:20:12,451 WARN L170 areAnnotationChecker]: L44-1 has no Hoare annotation [2022-02-20 16:20:12,451 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2022-02-20 16:20:12,452 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2022-02-20 16:20:12,452 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:20:12,452 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-02-20 16:20:12,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:20:12 BoogieIcfgContainer [2022-02-20 16:20:12,452 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 16:20:12,453 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 16:20:12,453 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 16:20:12,453 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 16:20:12,453 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:20:07" (3/4) ... [2022-02-20 16:20:12,455 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-02-20 16:20:12,461 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-02-20 16:20:12,461 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-02-20 16:20:12,461 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-02-20 16:20:12,461 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-02-20 16:20:12,479 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-20 16:20:12,479 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 16:20:12,480 INFO L158 Benchmark]: Toolchain (without parser) took 6079.83ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 23.2MB in the beginning and 32.9MB in the end (delta: -9.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:20:12,480 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 48.2MB. Free memory was 29.8MB in the beginning and 29.8MB in the end (delta: 50.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:20:12,481 INFO L158 Benchmark]: CACSL2BoogieTranslator took 223.63ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 23.0MB in the beginning and 39.6MB in the end (delta: -16.6MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2022-02-20 16:20:12,481 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.51ms. Allocated memory is still 58.7MB. Free memory was 39.6MB in the beginning and 38.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:20:12,481 INFO L158 Benchmark]: Boogie Preprocessor took 18.47ms. Allocated memory is still 58.7MB. Free memory was 38.1MB in the beginning and 36.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:20:12,481 INFO L158 Benchmark]: RCFGBuilder took 891.40ms. Allocated memory is still 58.7MB. Free memory was 36.8MB in the beginning and 28.5MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-20 16:20:12,482 INFO L158 Benchmark]: TraceAbstraction took 4881.43ms. Allocated memory is still 58.7MB. Free memory was 28.1MB in the beginning and 35.3MB in the end (delta: -7.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:20:12,482 INFO L158 Benchmark]: Witness Printer took 26.82ms. Allocated memory is still 58.7MB. Free memory was 35.3MB in the beginning and 32.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:20:12,483 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 48.2MB. Free memory was 29.8MB in the beginning and 29.8MB in the end (delta: 50.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 223.63ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 23.0MB in the beginning and 39.6MB in the end (delta: -16.6MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.51ms. Allocated memory is still 58.7MB. Free memory was 39.6MB in the beginning and 38.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.47ms. Allocated memory is still 58.7MB. Free memory was 38.1MB in the beginning and 36.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 891.40ms. Allocated memory is still 58.7MB. Free memory was 36.8MB in the beginning and 28.5MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4881.43ms. Allocated memory is still 58.7MB. Free memory was 28.1MB in the beginning and 35.3MB in the end (delta: -7.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 26.82ms. Allocated memory is still 58.7MB. Free memory was 35.3MB in the beginning and 32.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 25]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 35]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 44]: 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, 17 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 9 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 69 SizeOfPredicates, 11 NumberOfNonLiveVariables, 71 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-20 16:20:12,542 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