./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invariants/const.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf 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-invariants/const.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 c800eedf7ac08f8178c44ada6802012e187e4e2c .................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 11:44:14,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 11:44:14,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 11:44:14,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 11:44:14,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 11:44:14,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 11:44:14,365 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 11:44:14,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 11:44:14,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 11:44:14,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 11:44:14,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 11:44:14,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 11:44:14,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 11:44:14,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 11:44:14,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 11:44:14,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 11:44:14,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 11:44:14,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 11:44:14,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 11:44:14,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 11:44:14,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 11:44:14,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 11:44:14,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 11:44:14,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 11:44:14,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 11:44:14,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 11:44:14,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 11:44:14,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 11:44:14,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 11:44:14,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 11:44:14,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 11:44:14,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 11:44:14,413 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 11:44:14,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 11:44:14,415 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 11:44:14,415 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 11:44:14,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 11:44:14,416 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 11:44:14,416 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 11:44:14,417 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 11:44:14,418 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 11:44:14,421 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 11:44:14,455 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 11:44:14,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 11:44:14,456 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 11:44:14,457 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 11:44:14,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 11:44:14,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 11:44:14,459 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 11:44:14,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 11:44:14,459 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 11:44:14,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 11:44:14,460 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 11:44:14,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 11:44:14,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 11:44:14,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 11:44:14,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 11:44:14,461 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 11:44:14,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 11:44:14,461 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 11:44:14,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 11:44:14,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 11:44:14,462 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 11:44:14,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 11:44:14,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 11:44:14,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 11:44:14,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 11:44:14,463 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 11:44:14,463 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 11:44:14,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 11:44:14,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 11:44:14,463 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 11:44:14,464 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c800eedf7ac08f8178c44ada6802012e187e4e2c [2021-08-29 11:44:14,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 11:44:14,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 11:44:14,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 11:44:14,805 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 11:44:14,806 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 11:44:14,807 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invariants/const.c [2021-08-29 11:44:14,857 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fee54a856/414727c048f04cab8974e8a933687500/FLAGd91c690b7 [2021-08-29 11:44:15,278 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 11:44:15,279 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invariants/const.c [2021-08-29 11:44:15,284 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fee54a856/414727c048f04cab8974e8a933687500/FLAGd91c690b7 [2021-08-29 11:44:15,296 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fee54a856/414727c048f04cab8974e8a933687500 [2021-08-29 11:44:15,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 11:44:15,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 11:44:15,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 11:44:15,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 11:44:15,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 11:44:15,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 11:44:15" (1/1) ... [2021-08-29 11:44:15,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37fee374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:44:15, skipping insertion in model container [2021-08-29 11:44:15,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 11:44:15" (1/1) ... [2021-08-29 11:44:15,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 11:44:15,320 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 11:44:15,436 WARN L228 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-invariants/const.c[366,379] [2021-08-29 11:44:15,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 11:44:15,463 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 11:44:15,473 WARN L228 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-invariants/const.c[366,379] [2021-08-29 11:44:15,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 11:44:15,486 INFO L208 MainTranslator]: Completed translation [2021-08-29 11:44:15,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:44:15 WrapperNode [2021-08-29 11:44:15,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 11:44:15,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 11:44:15,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 11:44:15,490 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 11:44:15,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:44:15" (1/1) ... [2021-08-29 11:44:15,546 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:44:15" (1/1) ... [2021-08-29 11:44:15,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 11:44:15,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 11:44:15,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 11:44:15,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 11:44:15,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:44:15" (1/1) ... [2021-08-29 11:44:15,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:44:15" (1/1) ... [2021-08-29 11:44:15,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:44:15" (1/1) ... [2021-08-29 11:44:15,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:44:15" (1/1) ... [2021-08-29 11:44:15,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:44:15" (1/1) ... [2021-08-29 11:44:15,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:44:15" (1/1) ... [2021-08-29 11:44:15,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:44:15" (1/1) ... [2021-08-29 11:44:15,587 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 11:44:15,588 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 11:44:15,588 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 11:44:15,588 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 11:44:15,589 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:44:15" (1/1) ... [2021-08-29 11:44:15,595 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 11:44:15,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 11:44:15,617 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 11:44:15,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 11:44:15,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 11:44:15,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 11:44:15,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 11:44:15,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 11:44:15,798 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 11:44:15,798 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-29 11:44:15,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 11:44:15 BoogieIcfgContainer [2021-08-29 11:44:15,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 11:44:15,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 11:44:15,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 11:44:15,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 11:44:15,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 11:44:15" (1/3) ... [2021-08-29 11:44:15,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cd0ddc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 11:44:15, skipping insertion in model container [2021-08-29 11:44:15,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:44:15" (2/3) ... [2021-08-29 11:44:15,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cd0ddc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 11:44:15, skipping insertion in model container [2021-08-29 11:44:15,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 11:44:15" (3/3) ... [2021-08-29 11:44:15,807 INFO L111 eAbstractionObserver]: Analyzing ICFG const.c [2021-08-29 11:44:15,810 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 11:44:15,811 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 11:44:15,857 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 11:44:15,865 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 11:44:15,866 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 11:44:15,887 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.6) internal successors, (16), 11 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) [2021-08-29 11:44:15,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-29 11:44:15,903 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 11:44:15,903 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-29 11:44:15,904 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 11:44:15,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 11:44:15,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1810723982, now seen corresponding path program 1 times [2021-08-29 11:44:15,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 11:44:15,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728970033] [2021-08-29 11:44:15,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 11:44:15,916 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 11:44:16,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 11:44:16,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 11:44:16,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 11:44:16,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728970033] [2021-08-29 11:44:16,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728970033] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 11:44:16,175 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 11:44:16,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 11:44:16,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921939032] [2021-08-29 11:44:16,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 11:44:16,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 11:44:16,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 11:44:16,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 11:44:16,226 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.6) internal successors, (16), 11 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) 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) [2021-08-29 11:44:16,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 11:44:16,317 INFO L93 Difference]: Finished difference Result 27 states and 38 transitions. [2021-08-29 11:44:16,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 11:44:16,320 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 [2021-08-29 11:44:16,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 11:44:16,324 INFO L225 Difference]: With dead ends: 27 [2021-08-29 11:44:16,325 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 11:44:16,327 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.94ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 11:44:16,333 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 16 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.73ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 68.23ms IncrementalHoareTripleChecker+Time [2021-08-29 11:44:16,335 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 0 Invalid, 31 Unknown, 0 Unchecked, 0.73ms Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 68.23ms Time] [2021-08-29 11:44:16,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 11:44:16,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 11:44:16,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 11:44:16,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 11:44:16,355 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2021-08-29 11:44:16,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 11:44:16,355 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 11:44:16,355 INFO L471 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) [2021-08-29 11:44:16,355 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 11:44:16,356 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 11:44:16,358 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 11:44:16,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 11:44:16,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 11:44:16,362 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 11:44:16,378 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 11:44:16,391 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 11:44:16,391 INFO L854 garLoopResultBuilder]: At program point L21(lines 11 22) the Hoare annotation is: (= ULTIMATE.start_main_~s~0 (* 4294967296 (div ULTIMATE.start_main_~s~0 4294967296))) [2021-08-29 11:44:16,391 INFO L854 garLoopResultBuilder]: At program point L17(lines 13 20) the Hoare annotation is: (= ULTIMATE.start_main_~s~0 (* 4294967296 (div ULTIMATE.start_main_~s~0 4294967296))) [2021-08-29 11:44:16,391 INFO L858 garLoopResultBuilder]: For program point L13-2(lines 13 20) no Hoare annotation was computed. [2021-08-29 11:44:16,391 INFO L858 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2021-08-29 11:44:16,392 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 11:44:16,392 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 11:44:16,392 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 11:44:16,396 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2021-08-29 11:44:16,396 INFO L858 garLoopResultBuilder]: For program point L14(lines 14 16) no Hoare annotation was computed. [2021-08-29 11:44:16,396 INFO L858 garLoopResultBuilder]: For program point L14-2(lines 13 20) no Hoare annotation was computed. [2021-08-29 11:44:16,397 INFO L858 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2021-08-29 11:44:16,401 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 11:44:16,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 11:44:16 BoogieIcfgContainer [2021-08-29 11:44:16,419 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 11:44:16,419 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 11:44:16,419 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 11:44:16,420 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 11:44:16,420 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 11:44:15" (3/4) ... [2021-08-29 11:44:16,423 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 11:44:16,431 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-29 11:44:16,431 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-29 11:44:16,431 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 11:44:16,432 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 11:44:16,464 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 11:44:16,464 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 11:44:16,466 INFO L158 Benchmark]: Toolchain (without parser) took 1165.80ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 35.6MB in the beginning and 48.6MB in the end (delta: -13.1MB). Peak memory consumption was 567.5kB. Max. memory is 16.1GB. [2021-08-29 11:44:16,467 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 56.6MB. Free memory was 38.8MB in the beginning and 38.8MB in the end (delta: 50.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 11:44:16,468 INFO L158 Benchmark]: CACSL2BoogieTranslator took 187.75ms. Allocated memory is still 56.6MB. Free memory was 35.5MB in the beginning and 26.1MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-08-29 11:44:16,468 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.08ms. Allocated memory is still 56.6MB. Free memory was 26.1MB in the beginning and 40.4MB in the end (delta: -14.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 11:44:16,468 INFO L158 Benchmark]: Boogie Preprocessor took 25.41ms. Allocated memory is still 56.6MB. Free memory was 40.4MB in the beginning and 39.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 11:44:16,469 INFO L158 Benchmark]: RCFGBuilder took 212.10ms. Allocated memory is still 56.6MB. Free memory was 39.2MB in the beginning and 31.2MB in the end (delta: 8.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-29 11:44:16,469 INFO L158 Benchmark]: TraceAbstraction took 617.44ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 30.6MB in the beginning and 51.0MB in the end (delta: -20.4MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2021-08-29 11:44:16,471 INFO L158 Benchmark]: Witness Printer took 45.27ms. Allocated memory is still 69.2MB. Free memory was 51.0MB in the beginning and 48.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 11:44:16,473 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 56.6MB. Free memory was 38.8MB in the beginning and 38.8MB in the end (delta: 50.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 187.75ms. Allocated memory is still 56.6MB. Free memory was 35.5MB in the beginning and 26.1MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.08ms. Allocated memory is still 56.6MB. Free memory was 26.1MB in the beginning and 40.4MB in the end (delta: -14.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.41ms. Allocated memory is still 56.6MB. Free memory was 40.4MB in the beginning and 39.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 212.10ms. Allocated memory is still 56.6MB. Free memory was 39.2MB in the beginning and 31.2MB in the end (delta: 8.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 617.44ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 30.6MB in the beginning and 51.0MB in the end (delta: -20.4MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * Witness Printer took 45.27ms. Allocated memory is still 69.2MB. Free memory was 51.0MB in the beginning and 48.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 7]: 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, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 545.83ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 19.11ms, AutomataDifference: 155.61ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 31.62ms, InitialAbstractionConstructionTime: 18.19ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 68.23ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 45.14ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29 IncrementalHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 29 mSolverCounterSat, 0.73ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.94ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 7.86ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 14 HoareAnnotationTreeSize, 2 FomulaSimplifications, 26 FormulaSimplificationTreeSizeReduction, 19.56ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 7.10ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 14.58ms SsaConstructionTime, 37.50ms SatisfiabilityAnalysisTime, 154.15ms InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: s == 4294967296 * (s / 4294967296) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: s == 4294967296 * (s / 4294967296) RESULT: Ultimate proved your program to be correct! [2021-08-29 11:44:16,521 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...