./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/gcd_1+newton_1_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/gcd_1+newton_1_5.i -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 3fd336a0cf083f3890b8c868f630a501a442e53f25a6db757ae043988dd949bf --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 19:34:06,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 19:34:06,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 19:34:06,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 19:34:06,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 19:34:06,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 19:34:06,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 19:34:06,363 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 19:34:06,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 19:34:06,367 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 19:34:06,368 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 19:34:06,370 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 19:34:06,370 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 19:34:06,371 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 19:34:06,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 19:34:06,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 19:34:06,375 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 19:34:06,376 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 19:34:06,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 19:34:06,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 19:34:06,383 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 19:34:06,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 19:34:06,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 19:34:06,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 19:34:06,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 19:34:06,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 19:34:06,391 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 19:34:06,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 19:34:06,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 19:34:06,393 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 19:34:06,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 19:34:06,394 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 19:34:06,395 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 19:34:06,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 19:34:06,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 19:34:06,396 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 19:34:06,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 19:34:06,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 19:34:06,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 19:34:06,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 19:34:06,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 19:34:06,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 19:34:06,401 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 19:34:06,424 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 19:34:06,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 19:34:06,425 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 19:34:06,425 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 19:34:06,425 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 19:34:06,425 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 19:34:06,426 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 19:34:06,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 19:34:06,426 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 19:34:06,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 19:34:06,427 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 19:34:06,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 19:34:06,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 19:34:06,428 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 19:34:06,428 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 19:34:06,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 19:34:06,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 19:34:06,428 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 19:34:06,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 19:34:06,428 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 19:34:06,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 19:34:06,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 19:34:06,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 19:34:06,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 19:34:06,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 19:34:06,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 19:34:06,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 19:34:06,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 19:34:06,430 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 19:34:06,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 19:34:06,430 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 19:34:06,431 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 19:34:06,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 19:34:06,431 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fd336a0cf083f3890b8c868f630a501a442e53f25a6db757ae043988dd949bf [2022-07-19 19:34:06,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 19:34:06,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 19:34:06,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 19:34:06,646 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 19:34:06,647 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 19:34:06,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_1+newton_1_5.i [2022-07-19 19:34:06,706 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cafa94ce/1e053ef8639944c2b0370773c8fda70a/FLAG43b08bd99 [2022-07-19 19:34:07,070 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 19:34:07,071 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_1+newton_1_5.i [2022-07-19 19:34:07,075 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cafa94ce/1e053ef8639944c2b0370773c8fda70a/FLAG43b08bd99 [2022-07-19 19:34:07,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cafa94ce/1e053ef8639944c2b0370773c8fda70a [2022-07-19 19:34:07,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 19:34:07,086 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 19:34:07,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 19:34:07,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 19:34:07,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 19:34:07,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 07:34:07" (1/1) ... [2022-07-19 19:34:07,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a1d1981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:34:07, skipping insertion in model container [2022-07-19 19:34:07,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 07:34:07" (1/1) ... [2022-07-19 19:34:07,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 19:34:07,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 19:34:07,237 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/combinations/gcd_1+newton_1_5.i[1226,1239] [2022-07-19 19:34:07,258 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/combinations/gcd_1+newton_1_5.i[2786,2799] [2022-07-19 19:34:07,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 19:34:07,264 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 19:34:07,271 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/combinations/gcd_1+newton_1_5.i[1226,1239] [2022-07-19 19:34:07,277 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/combinations/gcd_1+newton_1_5.i[2786,2799] [2022-07-19 19:34:07,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 19:34:07,286 INFO L208 MainTranslator]: Completed translation [2022-07-19 19:34:07,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:34:07 WrapperNode [2022-07-19 19:34:07,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 19:34:07,287 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 19:34:07,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 19:34:07,288 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 19:34:07,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:34:07" (1/1) ... [2022-07-19 19:34:07,297 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:34:07" (1/1) ... [2022-07-19 19:34:07,311 INFO L137 Inliner]: procedures = 27, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 78 [2022-07-19 19:34:07,312 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 19:34:07,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 19:34:07,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 19:34:07,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 19:34:07,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:34:07" (1/1) ... [2022-07-19 19:34:07,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:34:07" (1/1) ... [2022-07-19 19:34:07,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:34:07" (1/1) ... [2022-07-19 19:34:07,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:34:07" (1/1) ... [2022-07-19 19:34:07,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:34:07" (1/1) ... [2022-07-19 19:34:07,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:34:07" (1/1) ... [2022-07-19 19:34:07,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:34:07" (1/1) ... [2022-07-19 19:34:07,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 19:34:07,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 19:34:07,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 19:34:07,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 19:34:07,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:34:07" (1/1) ... [2022-07-19 19:34:07,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 19:34:07,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 19:34:07,356 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 19:34:07,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 19:34:07,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 19:34:07,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 19:34:07,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 19:34:07,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 19:34:07,443 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 19:34:07,444 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 19:34:07,573 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 19:34:07,578 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 19:34:07,578 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 19:34:07,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 07:34:07 BoogieIcfgContainer [2022-07-19 19:34:07,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 19:34:07,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 19:34:07,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 19:34:07,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 19:34:07,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 07:34:07" (1/3) ... [2022-07-19 19:34:07,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c51902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 07:34:07, skipping insertion in model container [2022-07-19 19:34:07,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:34:07" (2/3) ... [2022-07-19 19:34:07,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c51902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 07:34:07, skipping insertion in model container [2022-07-19 19:34:07,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 07:34:07" (3/3) ... [2022-07-19 19:34:07,603 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_1_5.i [2022-07-19 19:34:07,616 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 19:34:07,616 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-19 19:34:07,649 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 19:34:07,653 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@722b5c7a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3976d51 [2022-07-19 19:34:07,653 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-19 19:34:07,656 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 19:34:07,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-19 19:34:07,661 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:34:07,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:34:07,662 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:34:07,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:34:07,665 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-07-19 19:34:07,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:34:07,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109298117] [2022-07-19 19:34:07,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:34:07,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:34:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:34:07,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:34:07,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:34:07,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109298117] [2022-07-19 19:34:07,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109298117] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:34:07,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:34:07,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 19:34:07,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399334497] [2022-07-19 19:34:07,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:34:07,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 19:34:07,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:34:07,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 19:34:07,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 19:34:07,831 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 19:34:07,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:34:07,845 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2022-07-19 19:34:07,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 19:34:07,847 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-19 19:34:07,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:34:07,852 INFO L225 Difference]: With dead ends: 46 [2022-07-19 19:34:07,852 INFO L226 Difference]: Without dead ends: 19 [2022-07-19 19:34:07,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 19:34:07,860 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 19:34:07,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 19:34:07,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-19 19:34:07,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-19 19:34:07,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 19:34:07,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-07-19 19:34:07,883 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-07-19 19:34:07,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:34:07,883 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-07-19 19:34:07,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 19:34:07,884 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-07-19 19:34:07,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-19 19:34:07,884 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:34:07,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:34:07,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 19:34:07,885 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:34:07,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:34:07,887 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-07-19 19:34:07,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:34:07,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405805286] [2022-07-19 19:34:07,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:34:07,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:34:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 19:34:07,916 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 19:34:07,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 19:34:07,946 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 19:34:07,947 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 19:34:07,951 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-19 19:34:07,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-19 19:34:07,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 19:34:07,957 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-19 19:34:07,960 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 19:34:07,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 07:34:07 BoogieIcfgContainer [2022-07-19 19:34:07,982 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 19:34:07,984 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 19:34:07,984 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 19:34:07,984 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 19:34:07,985 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 07:34:07" (3/4) ... [2022-07-19 19:34:07,987 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-19 19:34:07,987 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 19:34:07,988 INFO L158 Benchmark]: Toolchain (without parser) took 901.62ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 50.9MB in the beginning and 73.3MB in the end (delta: -22.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 19:34:07,989 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 86.0MB. Free memory was 55.6MB in the beginning and 55.5MB in the end (delta: 26.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 19:34:07,990 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.16ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 50.7MB in the beginning and 81.5MB in the end (delta: -30.8MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2022-07-19 19:34:07,991 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.62ms. Allocated memory is still 107.0MB. Free memory was 81.5MB in the beginning and 79.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 19:34:07,993 INFO L158 Benchmark]: Boogie Preprocessor took 15.45ms. Allocated memory is still 107.0MB. Free memory was 79.7MB in the beginning and 78.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 19:34:07,993 INFO L158 Benchmark]: RCFGBuilder took 251.15ms. Allocated memory is still 107.0MB. Free memory was 78.5MB in the beginning and 67.7MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-19 19:34:07,993 INFO L158 Benchmark]: TraceAbstraction took 390.29ms. Allocated memory is still 107.0MB. Free memory was 67.1MB in the beginning and 73.8MB in the end (delta: -6.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 19:34:07,993 INFO L158 Benchmark]: Witness Printer took 2.85ms. Allocated memory is still 107.0MB. Free memory was 73.8MB in the beginning and 73.3MB in the end (delta: 494.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 19:34:07,998 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 86.0MB. Free memory was 55.6MB in the beginning and 55.5MB in the end (delta: 26.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 200.16ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 50.7MB in the beginning and 81.5MB in the end (delta: -30.8MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.62ms. Allocated memory is still 107.0MB. Free memory was 81.5MB in the beginning and 79.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.45ms. Allocated memory is still 107.0MB. Free memory was 79.7MB in the beginning and 78.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 251.15ms. Allocated memory is still 107.0MB. Free memory was 78.5MB in the beginning and 67.7MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 390.29ms. Allocated memory is still 107.0MB. Free memory was 67.1MB in the beginning and 73.8MB in the end (delta: -6.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.85ms. Allocated memory is still 107.0MB. Free memory was 73.8MB in the beginning and 73.3MB in the end (delta: 494.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 102]: 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 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 93. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=49, x=49] [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=49, x=49] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=49] [L102] reach_error() VAL [IN=49] - UnprovableResult [Line: 27]: 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, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-19 19:34:08,030 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/combinations/gcd_1+newton_1_5.i -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 3fd336a0cf083f3890b8c868f630a501a442e53f25a6db757ae043988dd949bf --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 19:34:09,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 19:34:09,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 19:34:09,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 19:34:09,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 19:34:09,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 19:34:09,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 19:34:09,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 19:34:09,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 19:34:09,673 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 19:34:09,674 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 19:34:09,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 19:34:09,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 19:34:09,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 19:34:09,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 19:34:09,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 19:34:09,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 19:34:09,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 19:34:09,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 19:34:09,690 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 19:34:09,691 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 19:34:09,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 19:34:09,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 19:34:09,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 19:34:09,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 19:34:09,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 19:34:09,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 19:34:09,700 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 19:34:09,700 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 19:34:09,701 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 19:34:09,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 19:34:09,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 19:34:09,703 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 19:34:09,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 19:34:09,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 19:34:09,705 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 19:34:09,705 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 19:34:09,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 19:34:09,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 19:34:09,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 19:34:09,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 19:34:09,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 19:34:09,712 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-19 19:34:09,733 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 19:34:09,733 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 19:34:09,733 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 19:34:09,734 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 19:34:09,734 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 19:34:09,734 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 19:34:09,735 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 19:34:09,735 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 19:34:09,735 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 19:34:09,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 19:34:09,736 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 19:34:09,736 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 19:34:09,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 19:34:09,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 19:34:09,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 19:34:09,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 19:34:09,737 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 19:34:09,737 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 19:34:09,737 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 19:34:09,737 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 19:34:09,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 19:34:09,738 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 19:34:09,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 19:34:09,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 19:34:09,738 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 19:34:09,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 19:34:09,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 19:34:09,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 19:34:09,739 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 19:34:09,739 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 19:34:09,739 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 19:34:09,739 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 19:34:09,739 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 19:34:09,739 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 19:34:09,740 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 19:34:09,740 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 19:34:09,740 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fd336a0cf083f3890b8c868f630a501a442e53f25a6db757ae043988dd949bf [2022-07-19 19:34:09,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 19:34:09,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 19:34:10,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 19:34:10,002 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 19:34:10,002 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 19:34:10,004 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_1+newton_1_5.i [2022-07-19 19:34:10,053 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f97752e2/333495d229de43ed99964ed1cdd51c0a/FLAG70f4ec259 [2022-07-19 19:34:10,384 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 19:34:10,386 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_1+newton_1_5.i [2022-07-19 19:34:10,392 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f97752e2/333495d229de43ed99964ed1cdd51c0a/FLAG70f4ec259 [2022-07-19 19:34:10,815 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f97752e2/333495d229de43ed99964ed1cdd51c0a [2022-07-19 19:34:10,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 19:34:10,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 19:34:10,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 19:34:10,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 19:34:10,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 19:34:10,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 07:34:10" (1/1) ... [2022-07-19 19:34:10,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b78b34a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:34:10, skipping insertion in model container [2022-07-19 19:34:10,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 07:34:10" (1/1) ... [2022-07-19 19:34:10,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 19:34:10,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 19:34:10,968 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/combinations/gcd_1+newton_1_5.i[1226,1239] [2022-07-19 19:34:10,986 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/combinations/gcd_1+newton_1_5.i[2786,2799] [2022-07-19 19:34:10,987 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 19:34:10,997 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 19:34:11,028 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/combinations/gcd_1+newton_1_5.i[1226,1239] [2022-07-19 19:34:11,047 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/combinations/gcd_1+newton_1_5.i[2786,2799] [2022-07-19 19:34:11,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 19:34:11,070 INFO L208 MainTranslator]: Completed translation [2022-07-19 19:34:11,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:34:11 WrapperNode [2022-07-19 19:34:11,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 19:34:11,071 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 19:34:11,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 19:34:11,071 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 19:34:11,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:34:11" (1/1) ... [2022-07-19 19:34:11,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:34:11" (1/1) ... [2022-07-19 19:34:11,113 INFO L137 Inliner]: procedures = 28, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 73 [2022-07-19 19:34:11,113 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 19:34:11,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 19:34:11,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 19:34:11,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 19:34:11,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:34:11" (1/1) ... [2022-07-19 19:34:11,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:34:11" (1/1) ... [2022-07-19 19:34:11,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:34:11" (1/1) ... [2022-07-19 19:34:11,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:34:11" (1/1) ... [2022-07-19 19:34:11,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:34:11" (1/1) ... [2022-07-19 19:34:11,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:34:11" (1/1) ... [2022-07-19 19:34:11,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:34:11" (1/1) ... [2022-07-19 19:34:11,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 19:34:11,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 19:34:11,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 19:34:11,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 19:34:11,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:34:11" (1/1) ... [2022-07-19 19:34:11,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 19:34:11,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 19:34:11,183 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 19:34:11,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 19:34:11,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 19:34:11,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 19:34:11,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 19:34:11,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 19:34:11,273 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 19:34:11,274 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 19:34:17,153 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 19:34:17,157 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 19:34:17,158 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 19:34:17,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 07:34:17 BoogieIcfgContainer [2022-07-19 19:34:17,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 19:34:17,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 19:34:17,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 19:34:17,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 19:34:17,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 07:34:10" (1/3) ... [2022-07-19 19:34:17,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@601af930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 07:34:17, skipping insertion in model container [2022-07-19 19:34:17,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:34:11" (2/3) ... [2022-07-19 19:34:17,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@601af930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 07:34:17, skipping insertion in model container [2022-07-19 19:34:17,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 07:34:17" (3/3) ... [2022-07-19 19:34:17,165 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_1_5.i [2022-07-19 19:34:17,175 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 19:34:17,175 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-19 19:34:17,226 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 19:34:17,231 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6b6a836e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4b1317eb [2022-07-19 19:34:17,231 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-19 19:34:17,234 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 19:34:17,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-19 19:34:17,238 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:34:17,238 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:34:17,239 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:34:17,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:34:17,242 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-07-19 19:34:17,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 19:34:17,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [992209955] [2022-07-19 19:34:17,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:34:17,251 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 19:34:17,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 19:34:17,253 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 19:34:17,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-19 19:34:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:34:18,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-19 19:34:18,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 19:34:18,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:34:18,140 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 19:34:18,141 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 19:34:18,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [992209955] [2022-07-19 19:34:18,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [992209955] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:34:18,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:34:18,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 19:34:18,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203668248] [2022-07-19 19:34:18,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:34:18,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 19:34:18,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 19:34:18,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 19:34:18,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 19:34:18,176 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 19:34:18,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:34:18,190 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2022-07-19 19:34:18,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 19:34:18,192 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-19 19:34:18,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:34:18,201 INFO L225 Difference]: With dead ends: 46 [2022-07-19 19:34:18,201 INFO L226 Difference]: Without dead ends: 19 [2022-07-19 19:34:18,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 19:34:18,206 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 19:34:18,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 19:34:18,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-07-19 19:34:18,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-07-19 19:34:18,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 19:34:18,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-07-19 19:34:18,230 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-07-19 19:34:18,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:34:18,230 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-07-19 19:34:18,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 19:34:18,231 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-07-19 19:34:18,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-19 19:34:18,231 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:34:18,232 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:34:18,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-19 19:34:18,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 19:34:18,458 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:34:18,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:34:18,458 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-07-19 19:34:18,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 19:34:18,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [959785195] [2022-07-19 19:34:18,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:34:18,459 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 19:34:18,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 19:34:18,462 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-19 19:34:18,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-19 19:34:55,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 19:34:55,485 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 19:35:12,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 19:35:12,184 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-19 19:35:12,184 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 19:35:12,185 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-19 19:35:12,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-07-19 19:35:12,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-19 19:35:12,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 19:35:12,390 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-19 19:35:12,392 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 19:35:12,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 07:35:12 BoogieIcfgContainer [2022-07-19 19:35:12,416 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 19:35:12,417 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 19:35:12,417 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 19:35:12,417 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 19:35:12,417 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 07:34:17" (3/4) ... [2022-07-19 19:35:12,418 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-19 19:35:12,446 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 19:35:12,446 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 19:35:12,447 INFO L158 Benchmark]: Toolchain (without parser) took 61629.41ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 44.9MB in the beginning and 40.0MB in the end (delta: 4.9MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2022-07-19 19:35:12,447 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 65.0MB. Free memory was 47.0MB in the beginning and 46.9MB in the end (delta: 48.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 19:35:12,448 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.90ms. Allocated memory is still 65.0MB. Free memory was 44.8MB in the beginning and 47.4MB in the end (delta: -2.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-19 19:35:12,448 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.57ms. Allocated memory is still 65.0MB. Free memory was 47.4MB in the beginning and 45.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 19:35:12,448 INFO L158 Benchmark]: Boogie Preprocessor took 43.45ms. Allocated memory is still 65.0MB. Free memory was 45.5MB in the beginning and 44.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 19:35:12,448 INFO L158 Benchmark]: RCFGBuilder took 6000.74ms. Allocated memory is still 65.0MB. Free memory was 44.0MB in the beginning and 33.7MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-19 19:35:12,449 INFO L158 Benchmark]: TraceAbstraction took 55256.18ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 33.2MB in the beginning and 42.1MB in the end (delta: -9.0MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2022-07-19 19:35:12,449 INFO L158 Benchmark]: Witness Printer took 29.93ms. Allocated memory is still 79.7MB. Free memory was 41.8MB in the beginning and 40.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 19:35:12,451 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 65.0MB. Free memory was 47.0MB in the beginning and 46.9MB in the end (delta: 48.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 250.90ms. Allocated memory is still 65.0MB. Free memory was 44.8MB in the beginning and 47.4MB in the end (delta: -2.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.57ms. Allocated memory is still 65.0MB. Free memory was 47.4MB in the beginning and 45.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.45ms. Allocated memory is still 65.0MB. Free memory was 45.5MB in the beginning and 44.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 6000.74ms. Allocated memory is still 65.0MB. Free memory was 44.0MB in the beginning and 33.7MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 55256.18ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 33.2MB in the beginning and 42.1MB in the end (delta: -9.0MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Witness Printer took 29.93ms. Allocated memory is still 79.7MB. Free memory was 41.8MB in the beginning and 40.0MB in the end (delta: 1.8MB). 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 - CounterExampleResult [Line: 102]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-0.7001767754554749, \result=-0.644385576248169, x=-0.7001767754554749] [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-0.7001767754554749, \result=0.7650542259216309, x=-0.7001767754554749] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=-0.7001767754554749, x=0.1420975923538208] [L102] reach_error() VAL [IN=-0.7001767754554749, x=0.1420975923538208] - UnprovableResult [Line: 27]: 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, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 55.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 37.8s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 30 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-19 19:35:12,577 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE