./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/Rump_double.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/Rump_double.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 24eef60621a3eded894d905d0ae81df54cefb9ddd4a5c4a4a6a0c7f2fc93ac13 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 10:01:50,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 10:01:50,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 10:01:51,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 10:01:51,018 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 10:01:51,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 10:01:51,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 10:01:51,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 10:01:51,022 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 10:01:51,022 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 10:01:51,023 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 10:01:51,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 10:01:51,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 10:01:51,028 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 10:01:51,029 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 10:01:51,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 10:01:51,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 10:01:51,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 10:01:51,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 10:01:51,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 10:01:51,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 10:01:51,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 10:01:51,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 10:01:51,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 10:01:51,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 10:01:51,039 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 10:01:51,040 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 10:01:51,040 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 10:01:51,040 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 10:01:51,041 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 10:01:51,041 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 10:01:51,042 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 10:01:51,042 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 10:01:51,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 10:01:51,043 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 10:01:51,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 10:01:51,044 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 10:01:51,044 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 10:01:51,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 10:01:51,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 10:01:51,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 10:01:51,046 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-22 10:01:51,058 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 10:01:51,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 10:01:51,060 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 10:01:51,060 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 10:01:51,060 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 10:01:51,061 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 10:01:51,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 10:01:51,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 10:01:51,061 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 10:01:51,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 10:01:51,062 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 10:01:51,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 10:01:51,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 10:01:51,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 10:01:51,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 10:01:51,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 10:01:51,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 10:01:51,063 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 10:01:51,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 10:01:51,064 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 10:01:51,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 10:01:51,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 10:01:51,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 10:01:51,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 10:01:51,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 10:01:51,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 10:01:51,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 10:01:51,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 10:01:51,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 10:01:51,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 10:01:51,066 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 10:01:51,066 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 10:01:51,066 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 10:01:51,066 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 10:01:51,067 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24eef60621a3eded894d905d0ae81df54cefb9ddd4a5c4a4a6a0c7f2fc93ac13 [2021-12-22 10:01:51,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 10:01:51,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 10:01:51,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 10:01:51,292 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 10:01:51,292 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 10:01:51,293 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/Rump_double.c [2021-12-22 10:01:51,337 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40874232c/d849bf32483640d384c571c5a7e593a0/FLAG50e42113b [2021-12-22 10:01:51,674 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 10:01:51,675 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/Rump_double.c [2021-12-22 10:01:51,678 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40874232c/d849bf32483640d384c571c5a7e593a0/FLAG50e42113b [2021-12-22 10:01:52,125 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40874232c/d849bf32483640d384c571c5a7e593a0 [2021-12-22 10:01:52,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 10:01:52,130 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 10:01:52,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 10:01:52,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 10:01:52,136 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 10:01:52,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:01:52" (1/1) ... [2021-12-22 10:01:52,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@da5b606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:01:52, skipping insertion in model container [2021-12-22 10:01:52,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:01:52" (1/1) ... [2021-12-22 10:01:52,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 10:01:52,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 10:01:52,277 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/Rump_double.c[339,352] [2021-12-22 10:01:52,293 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 10:01:52,300 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 10:01:52,312 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/Rump_double.c[339,352] [2021-12-22 10:01:52,320 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 10:01:52,331 INFO L208 MainTranslator]: Completed translation [2021-12-22 10:01:52,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:01:52 WrapperNode [2021-12-22 10:01:52,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 10:01:52,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 10:01:52,333 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 10:01:52,333 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 10:01:52,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:01:52" (1/1) ... [2021-12-22 10:01:52,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:01:52" (1/1) ... [2021-12-22 10:01:52,355 INFO L137 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 25 [2021-12-22 10:01:52,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 10:01:52,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 10:01:52,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 10:01:52,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 10:01:52,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:01:52" (1/1) ... [2021-12-22 10:01:52,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:01:52" (1/1) ... [2021-12-22 10:01:52,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:01:52" (1/1) ... [2021-12-22 10:01:52,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:01:52" (1/1) ... [2021-12-22 10:01:52,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:01:52" (1/1) ... [2021-12-22 10:01:52,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:01:52" (1/1) ... [2021-12-22 10:01:52,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:01:52" (1/1) ... [2021-12-22 10:01:52,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 10:01:52,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 10:01:52,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 10:01:52,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 10:01:52,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:01:52" (1/1) ... [2021-12-22 10:01:52,390 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 10:01:52,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 10:01:52,414 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 10:01:52,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 10:01:52,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 10:01:52,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 10:01:52,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 10:01:52,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 10:01:52,483 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 10:01:52,484 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 10:01:52,552 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 10:01:52,557 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 10:01:52,557 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 10:01:52,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:01:52 BoogieIcfgContainer [2021-12-22 10:01:52,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 10:01:52,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 10:01:52,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 10:01:52,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 10:01:52,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 10:01:52" (1/3) ... [2021-12-22 10:01:52,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@175fd3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 10:01:52, skipping insertion in model container [2021-12-22 10:01:52,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:01:52" (2/3) ... [2021-12-22 10:01:52,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@175fd3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 10:01:52, skipping insertion in model container [2021-12-22 10:01:52,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:01:52" (3/3) ... [2021-12-22 10:01:52,565 INFO L111 eAbstractionObserver]: Analyzing ICFG Rump_double.c [2021-12-22 10:01:52,569 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 10:01:52,569 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 10:01:52,604 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 10:01:52,609 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 10:01:52,609 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 10:01:52,618 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 10:01:52,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-12-22 10:01:52,631 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 10:01:52,632 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-12-22 10:01:52,632 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 10:01:52,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 10:01:52,637 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-12-22 10:01:52,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 10:01:52,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581223041] [2021-12-22 10:01:52,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 10:01:52,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 10:01:52,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 10:01:52,713 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 10:01:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 10:01:52,744 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 10:01:52,745 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-22 10:01:52,746 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-22 10:01:52,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 10:01:52,751 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-12-22 10:01:52,753 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-22 10:01:52,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 10:01:52 BoogieIcfgContainer [2021-12-22 10:01:52,766 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-22 10:01:52,768 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 10:01:52,769 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 10:01:52,769 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 10:01:52,769 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:01:52" (3/4) ... [2021-12-22 10:01:52,771 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-22 10:01:52,772 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 10:01:52,773 INFO L158 Benchmark]: Toolchain (without parser) took 642.35ms. Allocated memory is still 136.3MB. Free memory was 109.0MB in the beginning and 89.3MB in the end (delta: 19.7MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2021-12-22 10:01:52,774 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 81.8MB. Free memory was 42.0MB in the beginning and 42.0MB in the end (delta: 42.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 10:01:52,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.37ms. Allocated memory is still 136.3MB. Free memory was 109.0MB in the beginning and 113.4MB in the end (delta: -4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-22 10:01:52,775 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.56ms. Allocated memory is still 136.3MB. Free memory was 113.4MB in the beginning and 112.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 10:01:52,776 INFO L158 Benchmark]: Boogie Preprocessor took 27.62ms. Allocated memory is still 136.3MB. Free memory was 112.0MB in the beginning and 110.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 10:01:52,779 INFO L158 Benchmark]: RCFGBuilder took 174.16ms. Allocated memory is still 136.3MB. Free memory was 110.8MB in the beginning and 102.4MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-22 10:01:52,779 INFO L158 Benchmark]: TraceAbstraction took 206.22ms. Allocated memory is still 136.3MB. Free memory was 101.9MB in the beginning and 89.9MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-22 10:01:52,780 INFO L158 Benchmark]: Witness Printer took 3.21ms. Allocated memory is still 136.3MB. Free memory was 89.7MB in the beginning and 89.3MB in the end (delta: 371.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 10:01:52,786 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 81.8MB. Free memory was 42.0MB in the beginning and 42.0MB in the end (delta: 42.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 200.37ms. Allocated memory is still 136.3MB. Free memory was 109.0MB in the beginning and 113.4MB in the end (delta: -4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.56ms. Allocated memory is still 136.3MB. Free memory was 113.4MB in the beginning and 112.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.62ms. Allocated memory is still 136.3MB. Free memory was 112.0MB in the beginning and 110.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 174.16ms. Allocated memory is still 136.3MB. Free memory was 110.8MB in the beginning and 102.4MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 206.22ms. Allocated memory is still 136.3MB. Free memory was 101.9MB in the beginning and 89.9MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 3.21ms. Allocated memory is still 136.3MB. Free memory was 89.7MB in the beginning and 89.3MB in the end (delta: 371.9kB). 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: 6]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 13. Possible FailurePath: [L10] double x,y,r; [L11] x = 77617. [L12] y = 33096. [L13] r = 333.75 * y*y*y*y*y*y + x*x * (11.0 * x*x*y*y - y*y*y*y*y*y - 121.0 * y*y*y*y - 2.0) + 5.5 * y*y*y*y*y*y*y*y + x / (2. * y) [L15] CALL __VERIFIER_assert((r >= 0)) [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 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=9occurred 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 [2021-12-22 10:01:52,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/Rump_double.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 24eef60621a3eded894d905d0ae81df54cefb9ddd4a5c4a4a6a0c7f2fc93ac13 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 10:01:54,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 10:01:54,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 10:01:54,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 10:01:54,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 10:01:54,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 10:01:54,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 10:01:54,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 10:01:54,429 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 10:01:54,430 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 10:01:54,431 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 10:01:54,432 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 10:01:54,433 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 10:01:54,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 10:01:54,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 10:01:54,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 10:01:54,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 10:01:54,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 10:01:54,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 10:01:54,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 10:01:54,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 10:01:54,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 10:01:54,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 10:01:54,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 10:01:54,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 10:01:54,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 10:01:54,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 10:01:54,451 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 10:01:54,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 10:01:54,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 10:01:54,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 10:01:54,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 10:01:54,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 10:01:54,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 10:01:54,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 10:01:54,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 10:01:54,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 10:01:54,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 10:01:54,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 10:01:54,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 10:01:54,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 10:01:54,466 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-22 10:01:54,486 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 10:01:54,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 10:01:54,487 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 10:01:54,487 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 10:01:54,488 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 10:01:54,488 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 10:01:54,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 10:01:54,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 10:01:54,489 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 10:01:54,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 10:01:54,490 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 10:01:54,490 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 10:01:54,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 10:01:54,490 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 10:01:54,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 10:01:54,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 10:01:54,491 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-22 10:01:54,491 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-22 10:01:54,491 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-22 10:01:54,491 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 10:01:54,491 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 10:01:54,492 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 10:01:54,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 10:01:54,492 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 10:01:54,492 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 10:01:54,492 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 10:01:54,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 10:01:54,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 10:01:54,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 10:01:54,493 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 10:01:54,493 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-22 10:01:54,493 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-22 10:01:54,493 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 10:01:54,493 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 10:01:54,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 10:01:54,494 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 10:01:54,494 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-22 10:01:54,494 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24eef60621a3eded894d905d0ae81df54cefb9ddd4a5c4a4a6a0c7f2fc93ac13 [2021-12-22 10:01:54,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 10:01:54,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 10:01:54,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 10:01:54,754 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 10:01:54,754 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 10:01:54,755 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/Rump_double.c [2021-12-22 10:01:54,799 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21698287d/830634d2deda401aa1a54d47d9e0165b/FLAG26ccb3c54 [2021-12-22 10:01:55,169 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 10:01:55,170 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/Rump_double.c [2021-12-22 10:01:55,175 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21698287d/830634d2deda401aa1a54d47d9e0165b/FLAG26ccb3c54 [2021-12-22 10:01:55,186 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21698287d/830634d2deda401aa1a54d47d9e0165b [2021-12-22 10:01:55,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 10:01:55,189 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 10:01:55,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 10:01:55,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 10:01:55,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 10:01:55,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:01:55" (1/1) ... [2021-12-22 10:01:55,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@81f6540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:01:55, skipping insertion in model container [2021-12-22 10:01:55,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:01:55" (1/1) ... [2021-12-22 10:01:55,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 10:01:55,210 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 10:01:55,325 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/Rump_double.c[339,352] [2021-12-22 10:01:55,339 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 10:01:55,353 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 10:01:55,362 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/Rump_double.c[339,352] [2021-12-22 10:01:55,374 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 10:01:55,384 INFO L208 MainTranslator]: Completed translation [2021-12-22 10:01:55,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:01:55 WrapperNode [2021-12-22 10:01:55,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 10:01:55,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 10:01:55,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 10:01:55,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 10:01:55,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:01:55" (1/1) ... [2021-12-22 10:01:55,406 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:01:55" (1/1) ... [2021-12-22 10:01:55,434 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2021-12-22 10:01:55,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 10:01:55,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 10:01:55,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 10:01:55,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 10:01:55,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:01:55" (1/1) ... [2021-12-22 10:01:55,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:01:55" (1/1) ... [2021-12-22 10:01:55,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:01:55" (1/1) ... [2021-12-22 10:01:55,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:01:55" (1/1) ... [2021-12-22 10:01:55,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:01:55" (1/1) ... [2021-12-22 10:01:55,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:01:55" (1/1) ... [2021-12-22 10:01:55,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:01:55" (1/1) ... [2021-12-22 10:01:55,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 10:01:55,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 10:01:55,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 10:01:55,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 10:01:55,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:01:55" (1/1) ... [2021-12-22 10:01:55,476 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 10:01:55,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 10:01:55,493 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 10:01:55,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 10:01:55,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 10:01:55,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 10:01:55,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 10:01:55,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-22 10:01:55,586 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 10:01:55,587 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 10:02:01,114 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 10:02:01,118 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 10:02:01,118 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 10:02:01,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:02:01 BoogieIcfgContainer [2021-12-22 10:02:01,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 10:02:01,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 10:02:01,120 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 10:02:01,122 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 10:02:01,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 10:01:55" (1/3) ... [2021-12-22 10:02:01,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d6193c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 10:02:01, skipping insertion in model container [2021-12-22 10:02:01,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:01:55" (2/3) ... [2021-12-22 10:02:01,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d6193c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 10:02:01, skipping insertion in model container [2021-12-22 10:02:01,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:02:01" (3/3) ... [2021-12-22 10:02:01,124 INFO L111 eAbstractionObserver]: Analyzing ICFG Rump_double.c [2021-12-22 10:02:01,127 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 10:02:01,127 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 10:02:01,163 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 10:02:01,172 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 10:02:01,172 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 10:02:01,184 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 10:02:01,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-12-22 10:02:01,192 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 10:02:01,192 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-12-22 10:02:01,193 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 10:02:01,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 10:02:01,198 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-12-22 10:02:01,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-22 10:02:01,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1315995638] [2021-12-22 10:02:01,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 10:02:01,207 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-22 10:02:01,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-22 10:02:01,209 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-22 10:02:01,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-22 10:02:06,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 10:02:07,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-22 10:02:07,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 10:02:07,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 10:02:07,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 10:02:07,752 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-22 10:02:07,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1315995638] [2021-12-22 10:02:07,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1315995638] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 10:02:07,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 10:02:07,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 10:02:07,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281513627] [2021-12-22 10:02:07,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 10:02:07,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 10:02:07,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-22 10:02:07,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 10:02:07,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 10:02:07,779 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2021-12-22 10:02:12,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.71s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-22 10:02:13,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-22 10:02:13,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 10:02:13,870 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-12-22 10:02:13,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 10:02:13,872 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 [2021-12-22 10:02:13,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 10:02:13,876 INFO L225 Difference]: With dead ends: 13 [2021-12-22 10:02:13,876 INFO L226 Difference]: Without dead ends: 0 [2021-12-22 10:02:13,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 10:02:13,879 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-12-22 10:02:13,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 8 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2021-12-22 10:02:13,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-22 10:02:13,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-22 10:02:13,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 10:02:13,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-22 10:02:13,894 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-12-22 10:02:13,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 10:02:13,895 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 10:02:13,895 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) [2021-12-22 10:02:13,895 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-22 10:02:13,895 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-22 10:02:13,897 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-22 10:02:14,032 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-22 10:02:14,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-22 10:02:14,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-22 10:02:14,297 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-22 10:02:14,297 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-22 10:02:14,298 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-22 10:02:14,298 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-22 10:02:14,298 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2021-12-22 10:02:14,298 INFO L854 garLoopResultBuilder]: At program point L16(lines 8 17) the Hoare annotation is: (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) [2021-12-22 10:02:14,298 INFO L858 garLoopResultBuilder]: For program point L6(line 6) no Hoare annotation was computed. [2021-12-22 10:02:14,298 INFO L858 garLoopResultBuilder]: For program point L6-1(line 6) no Hoare annotation was computed. [2021-12-22 10:02:14,298 INFO L854 garLoopResultBuilder]: At program point L6-3(line 6) the Hoare annotation is: (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) [2021-12-22 10:02:14,301 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-12-22 10:02:14,306 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-22 10:02:14,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 10:02:14 BoogieIcfgContainer [2021-12-22 10:02:14,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-22 10:02:14,314 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 10:02:14,315 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 10:02:14,315 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 10:02:14,315 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:02:01" (3/4) ... [2021-12-22 10:02:14,317 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-22 10:02:14,322 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-22 10:02:14,323 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-22 10:02:14,323 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-22 10:02:14,323 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-22 10:02:14,353 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-22 10:02:14,353 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 10:02:14,354 INFO L158 Benchmark]: Toolchain (without parser) took 19164.88ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 35.6MB in the beginning and 48.3MB in the end (delta: -12.8MB). Peak memory consumption was 911.9kB. Max. memory is 16.1GB. [2021-12-22 10:02:14,356 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 56.6MB. Free memory was 37.7MB in the beginning and 37.7MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 10:02:14,356 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.81ms. Allocated memory is still 56.6MB. Free memory was 35.3MB in the beginning and 38.6MB in the end (delta: -3.3MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2021-12-22 10:02:14,357 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.20ms. Allocated memory is still 56.6MB. Free memory was 38.6MB in the beginning and 40.0MB in the end (delta: -1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 10:02:14,357 INFO L158 Benchmark]: Boogie Preprocessor took 33.31ms. Allocated memory is still 56.6MB. Free memory was 40.0MB in the beginning and 38.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 10:02:14,358 INFO L158 Benchmark]: RCFGBuilder took 5648.98ms. Allocated memory is still 56.6MB. Free memory was 38.9MB in the beginning and 30.8MB in the end (delta: 8.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-22 10:02:14,358 INFO L158 Benchmark]: TraceAbstraction took 13193.70ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 30.3MB in the beginning and 50.6MB in the end (delta: -20.3MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2021-12-22 10:02:14,360 INFO L158 Benchmark]: Witness Printer took 39.07ms. Allocated memory is still 69.2MB. Free memory was 50.6MB in the beginning and 48.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 10:02:14,363 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 56.6MB. Free memory was 37.7MB in the beginning and 37.7MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 194.81ms. Allocated memory is still 56.6MB. Free memory was 35.3MB in the beginning and 38.6MB in the end (delta: -3.3MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.20ms. Allocated memory is still 56.6MB. Free memory was 38.6MB in the beginning and 40.0MB in the end (delta: -1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.31ms. Allocated memory is still 56.6MB. Free memory was 40.0MB in the beginning and 38.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 5648.98ms. Allocated memory is still 56.6MB. Free memory was 38.9MB in the beginning and 30.8MB in the end (delta: 8.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 13193.70ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 30.3MB in the beginning and 50.6MB in the end (delta: -20.3MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * Witness Printer took 39.07ms. Allocated memory is still 69.2MB. Free memory was 50.6MB in the beginning and 48.3MB in the end (delta: 2.2MB). 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: 6]: 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, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 6.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 4.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 6 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 5.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 5 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: cond == 1bv32 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: cond == 1bv32 RESULT: Ultimate proved your program to be correct! [2021-12-22 10:02:14,587 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-12-22 10:02:14,704 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 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE