./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops-crafted-1/sum_by_3_abstracted.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e1ff0e6 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/loops-crafted-1/sum_by_3_abstracted.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 83faa6e73eecf1794606bf7d9aa443e43ed9860cb538a0ff2fa0adbaa1b8efd0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-7e1ff0e [2023-02-14 23:24:50,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 23:24:50,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 23:24:50,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 23:24:50,535 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 23:24:50,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 23:24:50,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 23:24:50,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 23:24:50,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 23:24:50,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 23:24:50,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 23:24:50,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 23:24:50,547 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 23:24:50,548 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 23:24:50,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 23:24:50,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 23:24:50,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 23:24:50,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 23:24:50,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 23:24:50,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 23:24:50,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 23:24:50,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 23:24:50,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 23:24:50,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 23:24:50,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 23:24:50,566 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 23:24:50,566 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 23:24:50,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 23:24:50,568 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 23:24:50,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 23:24:50,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 23:24:50,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 23:24:50,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 23:24:50,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 23:24:50,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 23:24:50,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 23:24:50,575 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 23:24:50,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 23:24:50,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 23:24:50,577 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 23:24:50,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 23:24:50,579 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-14 23:24:50,608 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 23:24:50,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 23:24:50,608 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 23:24:50,609 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 23:24:50,609 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-14 23:24:50,610 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-14 23:24:50,610 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 23:24:50,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 23:24:50,611 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 23:24:50,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 23:24:50,612 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-14 23:24:50,612 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 23:24:50,612 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-14 23:24:50,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 23:24:50,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-14 23:24:50,613 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-14 23:24:50,613 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-14 23:24:50,613 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-14 23:24:50,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 23:24:50,613 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 23:24:50,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-14 23:24:50,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 23:24:50,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 23:24:50,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-14 23:24:50,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 23:24:50,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 23:24:50,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-14 23:24:50,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-14 23:24:50,615 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 23:24:50,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-14 23:24:50,616 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-14 23:24:50,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-14 23:24:50,616 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-14 23:24:50,616 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-14 23:24:50,616 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-14 23:24:50,617 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83faa6e73eecf1794606bf7d9aa443e43ed9860cb538a0ff2fa0adbaa1b8efd0 [2023-02-14 23:24:50,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 23:24:50,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 23:24:50,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 23:24:50,859 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 23:24:50,859 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 23:24:50,860 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops-crafted-1/sum_by_3_abstracted.c [2023-02-14 23:24:51,944 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 23:24:52,123 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 23:24:52,124 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/sum_by_3_abstracted.c [2023-02-14 23:24:52,129 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98ebab053/55f0650746674b51ae341884a5418284/FLAG0fbdd52cf [2023-02-14 23:24:52,144 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98ebab053/55f0650746674b51ae341884a5418284 [2023-02-14 23:24:52,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 23:24:52,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 23:24:52,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 23:24:52,150 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 23:24:52,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 23:24:52,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 11:24:52" (1/1) ... [2023-02-14 23:24:52,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c32a6ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:24:52, skipping insertion in model container [2023-02-14 23:24:52,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 11:24:52" (1/1) ... [2023-02-14 23:24:52,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 23:24:52,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 23:24:52,299 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/loops-crafted-1/sum_by_3_abstracted.c[824,837] [2023-02-14 23:24:52,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 23:24:52,325 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 23:24:52,335 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/loops-crafted-1/sum_by_3_abstracted.c[824,837] [2023-02-14 23:24:52,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 23:24:52,349 INFO L208 MainTranslator]: Completed translation [2023-02-14 23:24:52,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:24:52 WrapperNode [2023-02-14 23:24:52,349 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 23:24:52,350 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 23:24:52,350 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 23:24:52,350 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 23:24:52,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:24:52" (1/1) ... [2023-02-14 23:24:52,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:24:52" (1/1) ... [2023-02-14 23:24:52,382 INFO L138 Inliner]: procedures = 21, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 50 [2023-02-14 23:24:52,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 23:24:52,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 23:24:52,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 23:24:52,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 23:24:52,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:24:52" (1/1) ... [2023-02-14 23:24:52,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:24:52" (1/1) ... [2023-02-14 23:24:52,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:24:52" (1/1) ... [2023-02-14 23:24:52,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:24:52" (1/1) ... [2023-02-14 23:24:52,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:24:52" (1/1) ... [2023-02-14 23:24:52,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:24:52" (1/1) ... [2023-02-14 23:24:52,416 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:24:52" (1/1) ... [2023-02-14 23:24:52,417 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:24:52" (1/1) ... [2023-02-14 23:24:52,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 23:24:52,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 23:24:52,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 23:24:52,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 23:24:52,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:24:52" (1/1) ... [2023-02-14 23:24:52,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 23:24:52,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 23:24:52,454 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-14 23:24:52,476 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 [2023-02-14 23:24:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-14 23:24:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-14 23:24:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 23:24:52,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 23:24:52,543 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 23:24:52,545 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 23:24:52,693 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 23:24:52,698 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 23:24:52,698 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-14 23:24:52,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 11:24:52 BoogieIcfgContainer [2023-02-14 23:24:52,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 23:24:52,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-14 23:24:52,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-14 23:24:52,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-14 23:24:52,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 11:24:52" (1/3) ... [2023-02-14 23:24:52,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e7a09f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 11:24:52, skipping insertion in model container [2023-02-14 23:24:52,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:24:52" (2/3) ... [2023-02-14 23:24:52,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e7a09f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 11:24:52, skipping insertion in model container [2023-02-14 23:24:52,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 11:24:52" (3/3) ... [2023-02-14 23:24:52,715 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_by_3_abstracted.c [2023-02-14 23:24:52,734 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-14 23:24:52,734 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-14 23:24:52,822 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-14 23:24:52,828 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;@7b6adc69, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-14 23:24:52,828 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-14 23:24:52,831 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 18 states have internal predecessors, (28), 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) [2023-02-14 23:24:52,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-14 23:24:52,836 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 23:24:52,837 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 23:24:52,837 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 23:24:52,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 23:24:52,841 INFO L85 PathProgramCache]: Analyzing trace with hash 208527732, now seen corresponding path program 1 times [2023-02-14 23:24:52,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 23:24:52,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100839762] [2023-02-14 23:24:52,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 23:24:52,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 23:24:53,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 23:24:53,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 23:24:53,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 23:24:53,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100839762] [2023-02-14 23:24:53,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100839762] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 23:24:53,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 23:24:53,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-14 23:24:53,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375670710] [2023-02-14 23:24:53,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 23:24:53,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-14 23:24:53,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 23:24:53,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-14 23:24:53,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-02-14 23:24:53,824 INFO L87 Difference]: Start difference. First operand has 19 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 18 states have internal predecessors, (28), 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 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:24:54,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 23:24:54,100 INFO L93 Difference]: Finished difference Result 66 states and 90 transitions. [2023-02-14 23:24:54,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-14 23:24:54,102 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-14 23:24:54,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 23:24:54,108 INFO L225 Difference]: With dead ends: 66 [2023-02-14 23:24:54,108 INFO L226 Difference]: Without dead ends: 31 [2023-02-14 23:24:54,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2023-02-14 23:24:54,113 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 103 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 23:24:54,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 49 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 23:24:54,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-02-14 23:24:54,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 19. [2023-02-14 23:24:54,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 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) [2023-02-14 23:24:54,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2023-02-14 23:24:54,140 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 11 [2023-02-14 23:24:54,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 23:24:54,141 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2023-02-14 23:24:54,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:24:54,141 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2023-02-14 23:24:54,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-14 23:24:54,142 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 23:24:54,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 23:24:54,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-14 23:24:54,143 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 23:24:54,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 23:24:54,143 INFO L85 PathProgramCache]: Analyzing trace with hash -2123909486, now seen corresponding path program 1 times [2023-02-14 23:24:54,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 23:24:54,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047051044] [2023-02-14 23:24:54,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 23:24:54,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 23:24:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 23:24:54,226 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 23:24:54,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 23:24:54,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047051044] [2023-02-14 23:24:54,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047051044] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 23:24:54,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 23:24:54,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-14 23:24:54,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357916460] [2023-02-14 23:24:54,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 23:24:54,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-14 23:24:54,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 23:24:54,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 23:24:54,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-14 23:24:54,230 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:24:54,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 23:24:54,249 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2023-02-14 23:24:54,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-14 23:24:54,250 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-14 23:24:54,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 23:24:54,251 INFO L225 Difference]: With dead ends: 26 [2023-02-14 23:24:54,251 INFO L226 Difference]: Without dead ends: 15 [2023-02-14 23:24:54,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-14 23:24:54,252 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 23:24:54,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 23:24:54,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-02-14 23:24:54,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-02-14 23:24:54,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 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) [2023-02-14 23:24:54,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2023-02-14 23:24:54,259 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2023-02-14 23:24:54,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 23:24:54,260 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2023-02-14 23:24:54,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:24:54,261 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-02-14 23:24:54,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-14 23:24:54,263 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 23:24:54,263 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 23:24:54,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-14 23:24:54,265 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 23:24:54,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 23:24:54,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1706336381, now seen corresponding path program 1 times [2023-02-14 23:24:54,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 23:24:54,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723927603] [2023-02-14 23:24:54,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 23:24:54,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 23:24:54,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 23:24:55,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 23:24:55,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 23:24:55,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723927603] [2023-02-14 23:24:55,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723927603] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 23:24:55,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 23:24:55,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-02-14 23:24:55,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328143316] [2023-02-14 23:24:55,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 23:24:55,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-14 23:24:55,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 23:24:55,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-14 23:24:55,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-02-14 23:24:55,008 INFO L87 Difference]: Start difference. First operand 15 states and 17 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) [2023-02-14 23:24:55,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 23:24:55,824 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2023-02-14 23:24:55,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-14 23:24:55,826 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 14 [2023-02-14 23:24:55,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 23:24:55,826 INFO L225 Difference]: With dead ends: 36 [2023-02-14 23:24:55,826 INFO L226 Difference]: Without dead ends: 32 [2023-02-14 23:24:55,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2023-02-14 23:24:55,828 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 62 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-14 23:24:55,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 33 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-14 23:24:55,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-14 23:24:55,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 20. [2023-02-14 23:24:55,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 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) [2023-02-14 23:24:55,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2023-02-14 23:24:55,838 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 14 [2023-02-14 23:24:55,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 23:24:55,839 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2023-02-14 23:24:55,839 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) [2023-02-14 23:24:55,839 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2023-02-14 23:24:55,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-14 23:24:55,840 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 23:24:55,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 23:24:55,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-14 23:24:55,841 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 23:24:55,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 23:24:55,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1908572545, now seen corresponding path program 1 times [2023-02-14 23:24:55,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 23:24:55,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371525518] [2023-02-14 23:24:55,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 23:24:55,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 23:24:55,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 23:24:55,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 23:24:55,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 23:24:55,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371525518] [2023-02-14 23:24:55,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371525518] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 23:24:55,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 23:24:55,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-14 23:24:55,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308969843] [2023-02-14 23:24:55,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 23:24:55,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 23:24:55,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 23:24:55,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 23:24:55,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 23:24:55,887 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) [2023-02-14 23:24:55,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 23:24:55,911 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2023-02-14 23:24:55,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 23:24:55,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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 14 [2023-02-14 23:24:55,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 23:24:55,913 INFO L225 Difference]: With dead ends: 27 [2023-02-14 23:24:55,914 INFO L226 Difference]: Without dead ends: 18 [2023-02-14 23:24:55,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 23:24:55,923 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 23:24:55,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 23:24:55,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-02-14 23:24:55,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-02-14 23:24:55,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 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) [2023-02-14 23:24:55,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2023-02-14 23:24:55,936 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 14 [2023-02-14 23:24:55,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 23:24:55,936 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2023-02-14 23:24:55,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) [2023-02-14 23:24:55,936 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2023-02-14 23:24:55,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-14 23:24:55,937 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 23:24:55,937 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 23:24:55,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-14 23:24:55,938 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 23:24:55,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 23:24:55,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1358485673, now seen corresponding path program 1 times [2023-02-14 23:24:55,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 23:24:55,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427855970] [2023-02-14 23:24:55,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 23:24:55,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 23:24:55,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 23:24:56,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 23:24:56,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 23:24:56,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427855970] [2023-02-14 23:24:56,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427855970] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 23:24:56,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142060388] [2023-02-14 23:24:56,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 23:24:56,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 23:24:56,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 23:24:56,713 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) [2023-02-14 23:24:56,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-14 23:24:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 23:24:56,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 23:24:56,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 23:24:56,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 23:24:56,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 23:24:56,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142060388] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 23:24:56,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-14 23:24:56,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 13 [2023-02-14 23:24:56,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006163065] [2023-02-14 23:24:56,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 23:24:56,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-14 23:24:56,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 23:24:56,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 23:24:56,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2023-02-14 23:24:56,828 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:24:56,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 23:24:56,868 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2023-02-14 23:24:56,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-14 23:24:56,869 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-02-14 23:24:56,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 23:24:56,869 INFO L225 Difference]: With dead ends: 23 [2023-02-14 23:24:56,869 INFO L226 Difference]: Without dead ends: 16 [2023-02-14 23:24:56,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2023-02-14 23:24:56,870 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 9 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 23:24:56,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 15 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 23:24:56,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-02-14 23:24:56,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-02-14 23:24:56,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 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) [2023-02-14 23:24:56,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2023-02-14 23:24:56,879 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 15 [2023-02-14 23:24:56,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 23:24:56,880 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2023-02-14 23:24:56,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:24:56,880 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2023-02-14 23:24:56,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-14 23:24:56,881 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 23:24:56,881 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 23:24:56,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-14 23:24:57,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 23:24:57,087 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 23:24:57,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 23:24:57,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1341560856, now seen corresponding path program 1 times [2023-02-14 23:24:57,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 23:24:57,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777520275] [2023-02-14 23:24:57,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 23:24:57,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 23:24:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 23:24:57,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 23:24:57,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 23:24:57,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777520275] [2023-02-14 23:24:57,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777520275] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 23:24:57,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 23:24:57,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-02-14 23:24:57,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621746602] [2023-02-14 23:24:57,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 23:24:57,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-14 23:24:57,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 23:24:57,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-14 23:24:57,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-02-14 23:24:57,436 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 10 states, 10 states have (on average 1.5) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:24:57,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 23:24:57,578 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2023-02-14 23:24:57,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-14 23:24:57,578 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.5) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-02-14 23:24:57,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 23:24:57,578 INFO L225 Difference]: With dead ends: 16 [2023-02-14 23:24:57,578 INFO L226 Difference]: Without dead ends: 0 [2023-02-14 23:24:57,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2023-02-14 23:24:57,579 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 11 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 23:24:57,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 5 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 23:24:57,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-14 23:24:57,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-14 23:24:57,580 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) [2023-02-14 23:24:57,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-14 23:24:57,580 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2023-02-14 23:24:57,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 23:24:57,580 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 23:24:57,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.5) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:24:57,580 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-14 23:24:57,580 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-14 23:24:57,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-14 23:24:57,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-14 23:24:57,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-14 23:24:57,879 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 21) no Hoare annotation was computed. [2023-02-14 23:24:57,879 INFO L895 garLoopResultBuilder]: At program point L19-2(lines 18 23) the Hoare annotation is: (and (<= 20000001 ~SIZE~0) (<= ~SIZE~0 20000001) (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0))) [2023-02-14 23:24:57,880 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 26 51) the Hoare annotation is: (and (<= 20000001 ~SIZE~0) (<= ~SIZE~0 20000001)) [2023-02-14 23:24:57,880 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 39) no Hoare annotation was computed. [2023-02-14 23:24:57,880 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-14 23:24:57,880 INFO L899 garLoopResultBuilder]: For program point L32-1(lines 32 39) no Hoare annotation was computed. [2023-02-14 23:24:57,880 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-14 23:24:57,880 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2023-02-14 23:24:57,880 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-02-14 23:24:57,880 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-14 23:24:57,880 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2023-02-14 23:24:57,880 INFO L895 garLoopResultBuilder]: At program point L46-2(lines 46 48) the Hoare annotation is: (let ((.cse3 (* (div |ULTIMATE.start_main_~i~0#1| 4294967296) 4294967296))) (let ((.cse0 (<= ~SIZE~0 20000001)) (.cse1 (= |ULTIMATE.start_main_~i~0#1| (+ |ULTIMATE.start_main_~j~0#1| .cse3))) (.cse6 (* ~SIZE~0 3)) (.cse4 (= |ULTIMATE.start_main_~i~0#1| (+ |ULTIMATE.start_main_~k~0#1| .cse3)))) (or (let ((.cse2 (div ~SIZE~0 4294967296))) (and (<= 20000001 ~SIZE~0) .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~i~0#1| (* .cse2 4294967296)) (+ ~SIZE~0 .cse3)) .cse4 (let ((.cse5 (* 3 |ULTIMATE.start_main_~i~0#1|))) (<= (+ .cse5 (* .cse2 12884901888)) (+ (* 4294967296 (div (+ (- 3) .cse5) 4294967296)) .cse6))) (not (< (mod |ULTIMATE.start_main_~j~0#1| 4294967296) (mod |ULTIMATE.start_main_~n~0#1| 4294967296))))) (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 (<= 60000003 .cse6) (<= (+ |ULTIMATE.start_main_~n~0#1| .cse3) (+ (* (div |ULTIMATE.start_main_~n~0#1| 4294967296) 4294967296) |ULTIMATE.start_main_~i~0#1|)) .cse4)))) [2023-02-14 23:24:57,881 INFO L899 garLoopResultBuilder]: For program point L46-3(lines 46 48) no Hoare annotation was computed. [2023-02-14 23:24:57,881 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-14 23:24:57,881 INFO L895 garLoopResultBuilder]: At program point L42-2(lines 42 44) the Hoare annotation is: (let ((.cse6 (* (div |ULTIMATE.start_main_~i~0#1| 4294967296) 4294967296))) (let ((.cse0 (<= ~SIZE~0 20000001)) (.cse1 (= |ULTIMATE.start_main_~i~0#1| (+ |ULTIMATE.start_main_~j~0#1| .cse6))) (.cse3 (<= (+ |ULTIMATE.start_main_~n~0#1| .cse6) (+ (* (div |ULTIMATE.start_main_~n~0#1| 4294967296) 4294967296) |ULTIMATE.start_main_~i~0#1|))) (.cse2 (* ~SIZE~0 3))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 (<= 60000003 .cse2) .cse3) (let ((.cse5 (div ~SIZE~0 4294967296))) (and (<= 20000001 ~SIZE~0) .cse0 .cse1 .cse3 (let ((.cse4 (* 3 |ULTIMATE.start_main_~i~0#1|))) (<= (+ .cse4 (* .cse5 12884901888)) (+ (* 4294967296 (div (+ (- 3) .cse4) 4294967296)) .cse2))) (<= (+ |ULTIMATE.start_main_~i~0#1| (* .cse5 4294967296)) (+ 20000001 .cse6))))))) [2023-02-14 23:24:57,881 INFO L899 garLoopResultBuilder]: For program point L42-3(lines 42 44) no Hoare annotation was computed. [2023-02-14 23:24:57,881 INFO L899 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2023-02-14 23:24:57,881 INFO L899 garLoopResultBuilder]: For program point L34-2(lines 32 39) no Hoare annotation was computed. [2023-02-14 23:24:57,881 INFO L899 garLoopResultBuilder]: For program point L35-1(lines 32 39) no Hoare annotation was computed. [2023-02-14 23:24:57,884 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-02-14 23:24:57,886 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-14 23:24:57,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.02 11:24:57 BoogieIcfgContainer [2023-02-14 23:24:57,900 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-14 23:24:57,900 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-14 23:24:57,900 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-14 23:24:57,901 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-14 23:24:57,901 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 11:24:52" (3/4) ... [2023-02-14 23:24:57,903 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-14 23:24:57,914 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-02-14 23:24:57,914 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-14 23:24:57,914 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-14 23:24:57,914 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-14 23:24:57,939 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-14 23:24:57,939 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-14 23:24:57,939 INFO L158 Benchmark]: Toolchain (without parser) took 5791.02ms. Allocated memory was 136.3MB in the beginning and 178.3MB in the end (delta: 41.9MB). Free memory was 91.1MB in the beginning and 122.7MB in the end (delta: -31.6MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2023-02-14 23:24:57,940 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory was 86.0MB in the beginning and 85.9MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 23:24:57,940 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.04ms. Allocated memory is still 136.3MB. Free memory was 90.6MB in the beginning and 80.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-14 23:24:57,940 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.95ms. Allocated memory is still 136.3MB. Free memory was 80.1MB in the beginning and 79.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 23:24:57,941 INFO L158 Benchmark]: Boogie Preprocessor took 38.76ms. Allocated memory is still 136.3MB. Free memory was 78.6MB in the beginning and 77.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 23:24:57,941 INFO L158 Benchmark]: RCFGBuilder took 277.36ms. Allocated memory is still 136.3MB. Free memory was 77.5MB in the beginning and 67.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-14 23:24:57,941 INFO L158 Benchmark]: TraceAbstraction took 5198.06ms. Allocated memory was 136.3MB in the beginning and 178.3MB in the end (delta: 41.9MB). Free memory was 66.5MB in the beginning and 125.8MB in the end (delta: -59.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 23:24:57,941 INFO L158 Benchmark]: Witness Printer took 38.74ms. Allocated memory is still 178.3MB. Free memory was 125.8MB in the beginning and 122.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-14 23:24:57,943 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory was 86.0MB in the beginning and 85.9MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 200.04ms. Allocated memory is still 136.3MB. Free memory was 90.6MB in the beginning and 80.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.95ms. Allocated memory is still 136.3MB. Free memory was 80.1MB in the beginning and 79.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.76ms. Allocated memory is still 136.3MB. Free memory was 78.6MB in the beginning and 77.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 277.36ms. Allocated memory is still 136.3MB. Free memory was 77.5MB in the beginning and 67.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5198.06ms. Allocated memory was 136.3MB in the beginning and 178.3MB in the end (delta: 41.9MB). Free memory was 66.5MB in the beginning and 125.8MB in the end (delta: -59.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 38.74ms. Allocated memory is still 178.3MB. Free memory was 125.8MB in the beginning and 122.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: 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, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 185 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 185 mSDsluCounter, 143 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 78 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 280 IncrementalHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 65 mSDtfsCounter, 280 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=3, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 17 NumberOfFragments, 241 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 373 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 1765 SizeOfPredicates, 1 NumberOfNonLiveVariables, 55 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 3/4 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: 18]: Loop Invariant Derived loop invariant: (20000001 <= SIZE && SIZE <= 20000001) && !(cond == 0) - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 20000001 <= SIZE && SIZE <= 20000001 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: ((((i == 0 && SIZE <= 20000001) && i == j + i / 4294967296 * 4294967296) && 60000003 <= SIZE * 3) && n + i / 4294967296 * 4294967296 <= n / 4294967296 * 4294967296 + i) || (((((20000001 <= SIZE && SIZE <= 20000001) && i == j + i / 4294967296 * 4294967296) && n + i / 4294967296 * 4294967296 <= n / 4294967296 * 4294967296 + i) && 3 * i + SIZE / 4294967296 * 12884901888 <= 4294967296 * ((-3 + 3 * i) / 4294967296) + SIZE * 3) && i + SIZE / 4294967296 * 4294967296 <= 20000001 + i / 4294967296 * 4294967296) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: ((((((20000001 <= SIZE && SIZE <= 20000001) && i == j + i / 4294967296 * 4294967296) && i + SIZE / 4294967296 * 4294967296 <= SIZE + i / 4294967296 * 4294967296) && i == k + i / 4294967296 * 4294967296) && 3 * i + SIZE / 4294967296 * 12884901888 <= 4294967296 * ((-3 + 3 * i) / 4294967296) + SIZE * 3) && !(j % 4294967296 < n % 4294967296)) || (((((i == 0 && SIZE <= 20000001) && i == j + i / 4294967296 * 4294967296) && 60000003 <= SIZE * 3) && n + i / 4294967296 * 4294967296 <= n / 4294967296 * 4294967296 + i) && i == k + i / 4294967296 * 4294967296) RESULT: Ultimate proved your program to be correct! [2023-02-14 23:24:57,978 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