./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 26d01a9c 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/loop-new/gauss_sum.i.p+cfa-reducer.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 cea92a885059765321ed7cf859cc3b638b98fdf9848e92fde0851dbffef1cf19 --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-17 01:08:33,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 01:08:33,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 01:08:33,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 01:08:33,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 01:08:33,402 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 01:08:33,405 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 01:08:33,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 01:08:33,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 01:08:33,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 01:08:33,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 01:08:33,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 01:08:33,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 01:08:33,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 01:08:33,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 01:08:33,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 01:08:33,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 01:08:33,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 01:08:33,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 01:08:33,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 01:08:33,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 01:08:33,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 01:08:33,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 01:08:33,439 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 01:08:33,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 01:08:33,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 01:08:33,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 01:08:33,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 01:08:33,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 01:08:33,448 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 01:08:33,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 01:08:33,449 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 01:08:33,450 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 01:08:33,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 01:08:33,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 01:08:33,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 01:08:33,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 01:08:33,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 01:08:33,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 01:08:33,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 01:08:33,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 01:08:33,468 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-17 01:08:33,502 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 01:08:33,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 01:08:33,502 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 01:08:33,502 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 01:08:33,503 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 01:08:33,504 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 01:08:33,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 01:08:33,504 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 01:08:33,504 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 01:08:33,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 01:08:33,505 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-17 01:08:33,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 01:08:33,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-17 01:08:33,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 01:08:33,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-17 01:08:33,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 01:08:33,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-17 01:08:33,506 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-17 01:08:33,506 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 01:08:33,507 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 01:08:33,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-17 01:08:33,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 01:08:33,511 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 01:08:33,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 01:08:33,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 01:08:33,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 01:08:33,512 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 01:08:33,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-17 01:08:33,512 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 01:08:33,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 01:08:33,513 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 01:08:33,513 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-17 01:08:33,513 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 01:08:33,513 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 01:08:33,513 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 01:08:33,514 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cea92a885059765321ed7cf859cc3b638b98fdf9848e92fde0851dbffef1cf19 [2023-02-17 01:08:33,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 01:08:33,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 01:08:33,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 01:08:33,734 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 01:08:33,734 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 01:08:33,735 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2023-02-17 01:08:34,822 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 01:08:34,961 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 01:08:34,961 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2023-02-17 01:08:34,965 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18fb6d531/ca0992543edd433397cee9b74deaf41b/FLAGf04672e8a [2023-02-17 01:08:34,975 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18fb6d531/ca0992543edd433397cee9b74deaf41b [2023-02-17 01:08:34,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 01:08:34,977 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 01:08:34,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 01:08:34,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 01:08:34,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 01:08:34,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 01:08:34" (1/1) ... [2023-02-17 01:08:34,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d749a6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:08:34, skipping insertion in model container [2023-02-17 01:08:34,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 01:08:34" (1/1) ... [2023-02-17 01:08:34,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 01:08:35,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 01:08:35,094 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c[1014,1027] [2023-02-17 01:08:35,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 01:08:35,104 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 01:08:35,113 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c[1014,1027] [2023-02-17 01:08:35,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 01:08:35,123 INFO L208 MainTranslator]: Completed translation [2023-02-17 01:08:35,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:08:35 WrapperNode [2023-02-17 01:08:35,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 01:08:35,124 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 01:08:35,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 01:08:35,124 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 01:08:35,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:08:35" (1/1) ... [2023-02-17 01:08:35,134 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:08:35" (1/1) ... [2023-02-17 01:08:35,144 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2023-02-17 01:08:35,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 01:08:35,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 01:08:35,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 01:08:35,146 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 01:08:35,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:08:35" (1/1) ... [2023-02-17 01:08:35,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:08:35" (1/1) ... [2023-02-17 01:08:35,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:08:35" (1/1) ... [2023-02-17 01:08:35,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:08:35" (1/1) ... [2023-02-17 01:08:35,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:08:35" (1/1) ... [2023-02-17 01:08:35,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:08:35" (1/1) ... [2023-02-17 01:08:35,155 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:08:35" (1/1) ... [2023-02-17 01:08:35,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:08:35" (1/1) ... [2023-02-17 01:08:35,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 01:08:35,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 01:08:35,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 01:08:35,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 01:08:35,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:08:35" (1/1) ... [2023-02-17 01:08:35,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 01:08:35,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 01:08:35,180 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) [2023-02-17 01:08:35,182 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 [2023-02-17 01:08:35,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-17 01:08:35,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-17 01:08:35,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 01:08:35,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 01:08:35,251 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 01:08:35,252 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 01:08:35,387 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 01:08:35,391 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 01:08:35,392 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-17 01:08:35,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 01:08:35 BoogieIcfgContainer [2023-02-17 01:08:35,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 01:08:35,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 01:08:35,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 01:08:35,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 01:08:35,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 01:08:34" (1/3) ... [2023-02-17 01:08:35,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8ff698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 01:08:35, skipping insertion in model container [2023-02-17 01:08:35,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 01:08:35" (2/3) ... [2023-02-17 01:08:35,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8ff698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 01:08:35, skipping insertion in model container [2023-02-17 01:08:35,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 01:08:35" (3/3) ... [2023-02-17 01:08:35,410 INFO L112 eAbstractionObserver]: Analyzing ICFG gauss_sum.i.p+cfa-reducer.c [2023-02-17 01:08:35,421 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 01:08:35,422 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-17 01:08:35,454 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 01:08:35,460 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6c6384f3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 01:08:35,460 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-17 01:08:35,463 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 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) [2023-02-17 01:08:35,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-17 01:08:35,467 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 01:08:35,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-17 01:08:35,468 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 01:08:35,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 01:08:35,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1806908747, now seen corresponding path program 1 times [2023-02-17 01:08:35,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 01:08:35,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252350233] [2023-02-17 01:08:35,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 01:08:35,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 01:08:35,596 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-17 01:08:35,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1945503116] [2023-02-17 01:08:35,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 01:08:35,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 01:08:35,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 01:08:35,605 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 01:08:35,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-17 01:08:35,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 01:08:35,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-17 01:08:35,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 01:08:35,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 01:08:35,677 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 01:08:35,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 01:08:35,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252350233] [2023-02-17 01:08:35,678 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-17 01:08:35,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945503116] [2023-02-17 01:08:35,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945503116] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 01:08:35,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 01:08:35,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-17 01:08:35,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259876825] [2023-02-17 01:08:35,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 01:08:35,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 01:08:35,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 01:08:35,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 01:08:35,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-17 01:08:35,700 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 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 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-02-17 01:08:35,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 01:08:35,731 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2023-02-17 01:08:35,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-17 01:08:35,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2023-02-17 01:08:35,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 01:08:35,737 INFO L225 Difference]: With dead ends: 21 [2023-02-17 01:08:35,737 INFO L226 Difference]: Without dead ends: 9 [2023-02-17 01:08:35,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-17 01:08:35,741 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 01:08:35,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 19 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 01:08:35,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-02-17 01:08:35,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-02-17 01:08:35,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) 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) [2023-02-17 01:08:35,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-02-17 01:08:35,760 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2023-02-17 01:08:35,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 01:08:35,760 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-02-17 01:08:35,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-02-17 01:08:35,760 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-02-17 01:08:35,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-17 01:08:35,761 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 01:08:35,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 01:08:35,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-17 01:08:35,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-02-17 01:08:35,966 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 01:08:35,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 01:08:35,967 INFO L85 PathProgramCache]: Analyzing trace with hash 179533835, now seen corresponding path program 1 times [2023-02-17 01:08:35,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 01:08:35,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340985339] [2023-02-17 01:08:35,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 01:08:35,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 01:08:35,977 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-17 01:08:35,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1406325558] [2023-02-17 01:08:35,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 01:08:35,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 01:08:35,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 01:08:35,993 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 01:08:35,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-17 01:08:36,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 01:08:36,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-17 01:08:36,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 01:08:36,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 01:08:36,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 01:08:36,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 01:08:36,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 01:08:36,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340985339] [2023-02-17 01:08:36,133 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-17 01:08:36,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406325558] [2023-02-17 01:08:36,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406325558] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 01:08:36,133 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-17 01:08:36,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-02-17 01:08:36,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042021130] [2023-02-17 01:08:36,134 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-17 01:08:36,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-17 01:08:36,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 01:08:36,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-17 01:08:36,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-02-17 01:08:36,136 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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) [2023-02-17 01:08:36,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 01:08:36,163 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2023-02-17 01:08:36,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 01:08:36,164 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-17 01:08:36,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 01:08:36,164 INFO L225 Difference]: With dead ends: 13 [2023-02-17 01:08:36,164 INFO L226 Difference]: Without dead ends: 10 [2023-02-17 01:08:36,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-02-17 01:08:36,166 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 01:08:36,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 16 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 01:08:36,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-02-17 01:08:36,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-02-17 01:08:36,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 01:08:36,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2023-02-17 01:08:36,168 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2023-02-17 01:08:36,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 01:08:36,168 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2023-02-17 01:08:36,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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) [2023-02-17 01:08:36,169 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2023-02-17 01:08:36,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-17 01:08:36,169 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 01:08:36,169 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 01:08:36,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-17 01:08:36,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-02-17 01:08:36,380 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 01:08:36,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 01:08:36,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1270519115, now seen corresponding path program 2 times [2023-02-17 01:08:36,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 01:08:36,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393093082] [2023-02-17 01:08:36,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 01:08:36,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 01:08:36,390 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-17 01:08:36,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [247968328] [2023-02-17 01:08:36,390 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 01:08:36,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 01:08:36,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 01:08:36,396 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 01:08:36,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-17 01:08:36,434 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 01:08:36,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 01:08:36,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-17 01:08:36,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 01:08:36,496 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 01:08:36,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 01:08:36,664 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-17 01:08:36,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 01:08:36,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393093082] [2023-02-17 01:08:36,664 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-17 01:08:36,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247968328] [2023-02-17 01:08:36,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247968328] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 01:08:36,665 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-17 01:08:36,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2023-02-17 01:08:36,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510785845] [2023-02-17 01:08:36,667 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-17 01:08:36,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-17 01:08:36,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 01:08:36,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-17 01:08:36,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-02-17 01:08:36,671 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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) [2023-02-17 01:08:36,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 01:08:36,796 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2023-02-17 01:08:36,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-17 01:08:36,806 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 [2023-02-17 01:08:36,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 01:08:36,806 INFO L225 Difference]: With dead ends: 12 [2023-02-17 01:08:36,806 INFO L226 Difference]: Without dead ends: 0 [2023-02-17 01:08:36,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-02-17 01:08:36,808 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 01:08:36,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 15 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 01:08:36,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-17 01:08:36,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-17 01:08:36,809 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) [2023-02-17 01:08:36,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-17 01:08:36,809 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2023-02-17 01:08:36,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 01:08:36,809 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 01:08:36,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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) [2023-02-17 01:08:36,809 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-17 01:08:36,809 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-17 01:08:36,815 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-17 01:08:36,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-17 01:08:37,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 01:08:37,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-17 01:08:37,028 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-17 01:08:37,028 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 59) no Hoare annotation was computed. [2023-02-17 01:08:37,028 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 60) no Hoare annotation was computed. [2023-02-17 01:08:37,028 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-17 01:08:37,029 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 13 61) the Hoare annotation is: true [2023-02-17 01:08:37,029 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-17 01:08:37,029 INFO L895 garLoopResultBuilder]: At program point $Ultimate##6(lines 34 58) the Hoare annotation is: (let ((.cse0 (or (= (* |ULTIMATE.start_main_~main__n~0#1| (+ |ULTIMATE.start_main_~main__n~0#1| 1)) (* 2 |ULTIMATE.start_main_~main__sum~0#1|)) (<= |ULTIMATE.start_main_~main__i~0#1| |ULTIMATE.start_main_~main__n~0#1|))) (.cse3 (forall ((|ULTIMATE.start_main_~main__n~0#1| Int)) (let ((.cse5 (+ |ULTIMATE.start_main_~main__n~0#1| 1))) (or (< (+ |ULTIMATE.start_main_~main__i~0#1| 1) .cse5) (not (<= |ULTIMATE.start_main_~main__i~0#1| |ULTIMATE.start_main_~main__n~0#1|)) (= (* |ULTIMATE.start_main_~main__n~0#1| .cse5) (* (+ |ULTIMATE.start_main_~main__i~0#1| |ULTIMATE.start_main_~main__sum~0#1|) 2)))))) (.cse1 (+ 1 1)) (.cse2 (<= 1 |ULTIMATE.start_main_~main__n~0#1|))) (or (and .cse0 (= .cse1 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~main__i~0#1| .cse1) (= (+ 0 1) |ULTIMATE.start_main_~main__sum~0#1|) .cse2) (and (<= |ULTIMATE.start_main_~main__i~0#1| 1) (= |ULTIMATE.start_main_~main__sum~0#1| 0) (= |ULTIMATE.start_main_~main__i~0#1| 1) .cse2) (and .cse0 .cse3 .cse2) (let ((.cse4 (+ (- 1) |ULTIMATE.start_main_~main__sum~0#1|))) (and .cse3 (<= |ULTIMATE.start_main_~main__i~0#1| (+ .cse4 1)) (= .cse1 .cse4) (<= .cse4 |ULTIMATE.start_main_~main__n~0#1|) .cse2)))) [2023-02-17 01:08:37,029 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-17 01:08:37,030 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 49) no Hoare annotation was computed. [2023-02-17 01:08:37,044 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2023-02-17 01:08:37,044 INFO L899 garLoopResultBuilder]: For program point L47(lines 47 56) no Hoare annotation was computed. [2023-02-17 01:08:37,046 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2023-02-17 01:08:37,048 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-17 01:08:37,054 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,055 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,055 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,055 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,055 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,055 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,055 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,055 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,059 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,059 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,059 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,059 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,060 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,060 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,060 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,060 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.02 01:08:37 BoogieIcfgContainer [2023-02-17 01:08:37,061 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-17 01:08:37,062 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-17 01:08:37,062 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-17 01:08:37,062 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-17 01:08:37,062 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 01:08:35" (3/4) ... [2023-02-17 01:08:37,064 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-17 01:08:37,069 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-02-17 01:08:37,070 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-17 01:08:37,070 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-17 01:08:37,070 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-17 01:08:37,089 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-17 01:08:37,089 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-17 01:08:37,089 INFO L158 Benchmark]: Toolchain (without parser) took 2112.15ms. Allocated memory is still 138.4MB. Free memory was 102.4MB in the beginning and 106.4MB in the end (delta: -4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 01:08:37,090 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 111.1MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 01:08:37,090 INFO L158 Benchmark]: CACSL2BoogieTranslator took 145.40ms. Allocated memory is still 138.4MB. Free memory was 102.0MB in the beginning and 91.9MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-17 01:08:37,090 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.90ms. Allocated memory is still 138.4MB. Free memory was 91.9MB in the beginning and 89.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 01:08:37,090 INFO L158 Benchmark]: Boogie Preprocessor took 11.47ms. Allocated memory is still 138.4MB. Free memory was 89.8MB in the beginning and 89.0MB in the end (delta: 814.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 01:08:37,091 INFO L158 Benchmark]: RCFGBuilder took 235.88ms. Allocated memory is still 138.4MB. Free memory was 89.0MB in the beginning and 79.7MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-17 01:08:37,091 INFO L158 Benchmark]: TraceAbstraction took 1656.29ms. Allocated memory is still 138.4MB. Free memory was 79.0MB in the beginning and 108.5MB in the end (delta: -29.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 01:08:37,091 INFO L158 Benchmark]: Witness Printer took 27.44ms. Allocated memory is still 138.4MB. Free memory was 108.5MB in the beginning and 106.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 01:08:37,092 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 111.1MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 145.40ms. Allocated memory is still 138.4MB. Free memory was 102.0MB in the beginning and 91.9MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.90ms. Allocated memory is still 138.4MB. Free memory was 91.9MB in the beginning and 89.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 11.47ms. Allocated memory is still 138.4MB. Free memory was 89.8MB in the beginning and 89.0MB in the end (delta: 814.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 235.88ms. Allocated memory is still 138.4MB. Free memory was 89.0MB in the beginning and 79.7MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1656.29ms. Allocated memory is still 138.4MB. Free memory was 79.0MB in the beginning and 108.5MB in the end (delta: -29.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 27.44ms. Allocated memory is still 138.4MB. Free memory was 108.5MB in the beginning and 106.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] * 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: 49]: 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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60 IncrementalHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 20 mSDtfsCounter, 60 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 135 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 2 QuantifiedInterpolants, 219 SizeOfPredicates, 14 NumberOfNonLiveVariables, 150 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 1/8 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: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant [2023-02-17 01:08:37,099 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,099 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,099 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,099 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,100 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,100 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,100 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,100 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,101 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,101 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,101 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,101 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,101 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,101 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,101 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2023-02-17 01:08:37,101 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] Derived loop invariant: (((((((main__n * (main__n + 1) == 2 * main__sum || main__i <= main__n) && 1 + 1 == main__i) && main__i <= 1 + 1) && 0 + 1 == main__sum) && 1 <= main__n) || (((main__i <= 1 && main__sum == 0) && main__i == 1) && 1 <= main__n)) || (((main__n * (main__n + 1) == 2 * main__sum || main__i <= main__n) && (forall ULTIMATE.start_main_~main__n~0#1 : int :: (main__i + 1 < ULTIMATE.start_main_~main__n~0#1 + 1 || !(main__i <= ULTIMATE.start_main_~main__n~0#1)) || ULTIMATE.start_main_~main__n~0#1 * (ULTIMATE.start_main_~main__n~0#1 + 1) == (main__i + main__sum) * 2)) && 1 <= main__n)) || (((((forall ULTIMATE.start_main_~main__n~0#1 : int :: (main__i + 1 < ULTIMATE.start_main_~main__n~0#1 + 1 || !(main__i <= ULTIMATE.start_main_~main__n~0#1)) || ULTIMATE.start_main_~main__n~0#1 * (ULTIMATE.start_main_~main__n~0#1 + 1) == (main__i + main__sum) * 2) && main__i <= -1 + main__sum + 1) && 1 + 1 == -1 + main__sum) && -1 + main__sum <= main__n) && 1 <= main__n) RESULT: Ultimate proved your program to be correct! [2023-02-17 01:08:37,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE