./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/hhk2008.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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-lit/hhk2008.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 71a7284f447428ecffa93ec68ad1c6e5855fc63e0841f7f396bb4f1c281c6b13 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 15:20:05,286 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 15:20:05,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 15:20:05,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 15:20:05,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 15:20:05,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 15:20:05,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 15:20:05,327 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 15:20:05,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 15:20:05,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 15:20:05,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 15:20:05,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 15:20:05,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 15:20:05,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 15:20:05,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 15:20:05,338 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 15:20:05,339 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 15:20:05,340 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 15:20:05,341 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 15:20:05,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 15:20:05,346 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 15:20:05,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 15:20:05,347 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 15:20:05,348 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 15:20:05,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 15:20:05,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 15:20:05,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 15:20:05,354 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 15:20:05,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 15:20:05,355 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 15:20:05,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 15:20:05,356 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 15:20:05,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 15:20:05,357 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 15:20:05,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 15:20:05,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 15:20:05,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 15:20:05,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 15:20:05,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 15:20:05,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 15:20:05,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 15:20:05,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 15:20:05,362 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 15:20:05,384 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 15:20:05,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 15:20:05,384 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 15:20:05,385 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 15:20:05,385 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 15:20:05,385 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 15:20:05,386 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 15:20:05,386 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 15:20:05,386 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 15:20:05,386 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 15:20:05,387 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 15:20:05,387 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 15:20:05,387 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 15:20:05,387 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 15:20:05,387 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 15:20:05,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 15:20:05,388 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 15:20:05,388 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 15:20:05,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 15:20:05,388 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 15:20:05,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 15:20:05,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 15:20:05,388 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 15:20:05,389 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 15:20:05,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 15:20:05,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 15:20:05,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 15:20:05,389 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 15:20:05,389 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 15:20:05,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 15:20:05,390 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 15:20:05,390 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 15:20:05,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 15:20:05,390 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71a7284f447428ecffa93ec68ad1c6e5855fc63e0841f7f396bb4f1c281c6b13 [2022-07-22 15:20:05,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 15:20:05,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 15:20:05,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 15:20:05,596 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 15:20:05,597 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 15:20:05,597 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/hhk2008.i [2022-07-22 15:20:05,657 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d04c85df5/e24287328e2044abbf4a1c28a7e4cd16/FLAGeed25c516 [2022-07-22 15:20:06,011 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 15:20:06,012 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/hhk2008.i [2022-07-22 15:20:06,016 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d04c85df5/e24287328e2044abbf4a1c28a7e4cd16/FLAGeed25c516 [2022-07-22 15:20:06,024 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d04c85df5/e24287328e2044abbf4a1c28a7e4cd16 [2022-07-22 15:20:06,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 15:20:06,027 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 15:20:06,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 15:20:06,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 15:20:06,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 15:20:06,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 03:20:06" (1/1) ... [2022-07-22 15:20:06,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78a1bb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:20:06, skipping insertion in model container [2022-07-22 15:20:06,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 03:20:06" (1/1) ... [2022-07-22 15:20:06,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 15:20:06,043 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 15:20:06,149 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/hhk2008.i[895,908] [2022-07-22 15:20:06,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 15:20:06,161 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 15:20:06,169 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/hhk2008.i[895,908] [2022-07-22 15:20:06,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 15:20:06,179 INFO L208 MainTranslator]: Completed translation [2022-07-22 15:20:06,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:20:06 WrapperNode [2022-07-22 15:20:06,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 15:20:06,180 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 15:20:06,180 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 15:20:06,181 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 15:20:06,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:20:06" (1/1) ... [2022-07-22 15:20:06,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:20:06" (1/1) ... [2022-07-22 15:20:06,209 INFO L137 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 40 [2022-07-22 15:20:06,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 15:20:06,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 15:20:06,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 15:20:06,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 15:20:06,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:20:06" (1/1) ... [2022-07-22 15:20:06,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:20:06" (1/1) ... [2022-07-22 15:20:06,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:20:06" (1/1) ... [2022-07-22 15:20:06,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:20:06" (1/1) ... [2022-07-22 15:20:06,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:20:06" (1/1) ... [2022-07-22 15:20:06,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:20:06" (1/1) ... [2022-07-22 15:20:06,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:20:06" (1/1) ... [2022-07-22 15:20:06,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 15:20:06,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 15:20:06,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 15:20:06,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 15:20:06,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:20:06" (1/1) ... [2022-07-22 15:20:06,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 15:20:06,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 15:20:06,258 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 15:20:06,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 15:20:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 15:20:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 15:20:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 15:20:06,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 15:20:06,327 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 15:20:06,328 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 15:20:06,412 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 15:20:06,416 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 15:20:06,416 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 15:20:06,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:20:06 BoogieIcfgContainer [2022-07-22 15:20:06,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 15:20:06,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 15:20:06,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 15:20:06,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 15:20:06,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 03:20:06" (1/3) ... [2022-07-22 15:20:06,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513dd289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 03:20:06, skipping insertion in model container [2022-07-22 15:20:06,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 03:20:06" (2/3) ... [2022-07-22 15:20:06,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513dd289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 03:20:06, skipping insertion in model container [2022-07-22 15:20:06,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:20:06" (3/3) ... [2022-07-22 15:20:06,424 INFO L111 eAbstractionObserver]: Analyzing ICFG hhk2008.i [2022-07-22 15:20:06,434 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 15:20:06,434 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 15:20:06,463 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 15:20:06,468 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2c3d6e78, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@607ca5c9 [2022-07-22 15:20:06,468 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 15:20:06,471 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 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) [2022-07-22 15:20:06,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-22 15:20:06,474 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:20:06,475 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:20:06,475 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 15:20:06,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:20:06,481 INFO L85 PathProgramCache]: Analyzing trace with hash 179630160, now seen corresponding path program 1 times [2022-07-22 15:20:06,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:20:06,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616882034] [2022-07-22 15:20:06,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:20:06,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:20:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:20:06,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:20:06,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:20:06,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616882034] [2022-07-22 15:20:06,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616882034] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 15:20:06,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 15:20:06,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 15:20:06,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241938962] [2022-07-22 15:20:06,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 15:20:06,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 15:20:06,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:20:06,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 15:20:06,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 15:20:06,696 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 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) Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 15:20:06,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:20:06,761 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2022-07-22 15:20:06,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 15:20:06,763 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-22 15:20:06,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:20:06,770 INFO L225 Difference]: With dead ends: 31 [2022-07-22 15:20:06,770 INFO L226 Difference]: Without dead ends: 10 [2022-07-22 15:20:06,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-22 15:20:06,780 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 18 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 15:20:06,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 31 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 15:20:06,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-07-22 15:20:06,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-07-22 15:20:06,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 15:20:06,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2022-07-22 15:20:06,802 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2022-07-22 15:20:06,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:20:06,803 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2022-07-22 15:20:06,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 15:20:06,803 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2022-07-22 15:20:06,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-22 15:20:06,804 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 15:20:06,804 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 15:20:06,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 15:20:06,804 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 15:20:06,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 15:20:06,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1275233045, now seen corresponding path program 1 times [2022-07-22 15:20:06,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 15:20:06,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025870995] [2022-07-22 15:20:06,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:20:06,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 15:20:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:20:06,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:20:06,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 15:20:06,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025870995] [2022-07-22 15:20:06,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025870995] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 15:20:06,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123253822] [2022-07-22 15:20:06,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 15:20:06,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 15:20:06,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 15:20:06,894 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) [2022-07-22 15:20:06,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 15:20:06,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 15:20:06,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-22 15:20:06,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 15:20:07,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:20:07,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 15:20:07,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 15:20:07,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123253822] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 15:20:07,144 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 15:20:07,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-07-22 15:20:07,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707010704] [2022-07-22 15:20:07,145 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 15:20:07,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 15:20:07,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 15:20:07,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 15:20:07,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-07-22 15:20:07,147 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 15:20:07,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 15:20:07,288 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2022-07-22 15:20:07,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 15:20:07,289 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-22 15:20:07,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 15:20:07,289 INFO L225 Difference]: With dead ends: 13 [2022-07-22 15:20:07,289 INFO L226 Difference]: Without dead ends: 0 [2022-07-22 15:20:07,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2022-07-22 15:20:07,293 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 15:20:07,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 13 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 15:20:07,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-22 15:20:07,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-22 15:20:07,298 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) [2022-07-22 15:20:07,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 15:20:07,299 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2022-07-22 15:20:07,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 15:20:07,299 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 15:20:07,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 15:20:07,304 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-22 15:20:07,305 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-22 15:20:07,306 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 15:20:07,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 15:20:07,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 15:20:07,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-22 15:20:07,551 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-22 15:20:07,553 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2022-07-22 15:20:07,553 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2022-07-22 15:20:07,553 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-22 15:20:07,553 INFO L895 garLoopResultBuilder]: At program point L32-2(lines 32 35) the Hoare annotation is: (let ((.cse1 (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse0 (+ |ULTIMATE.start_main_~cnt~0#1| |ULTIMATE.start_main_~res~0#1|))) (and (< |ULTIMATE.start_main_~res~0#1| (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1| 1)) (<= .cse0 .cse1) (<= .cse1 .cse0))) [2022-07-22 15:20:07,554 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-22 15:20:07,554 INFO L899 garLoopResultBuilder]: For program point L32-3(lines 32 35) no Hoare annotation was computed. [2022-07-22 15:20:07,554 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-22 15:20:07,554 INFO L899 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2022-07-22 15:20:07,554 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2022-07-22 15:20:07,554 INFO L899 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2022-07-22 15:20:07,554 INFO L895 garLoopResultBuilder]: At program point L18-2(lines 17 22) the Hoare annotation is: (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) [2022-07-22 15:20:07,555 INFO L902 garLoopResultBuilder]: At program point L37(lines 24 38) the Hoare annotation is: true [2022-07-22 15:20:07,560 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-22 15:20:07,562 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 15:20:07,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 03:20:07 BoogieIcfgContainer [2022-07-22 15:20:07,581 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 15:20:07,582 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 15:20:07,583 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 15:20:07,583 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 15:20:07,583 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 03:20:06" (3/4) ... [2022-07-22 15:20:07,585 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-22 15:20:07,592 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-07-22 15:20:07,592 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-07-22 15:20:07,592 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-22 15:20:07,592 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 15:20:07,623 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 15:20:07,623 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 15:20:07,624 INFO L158 Benchmark]: Toolchain (without parser) took 1597.22ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 59.9MB in the beginning and 70.8MB in the end (delta: -10.9MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2022-07-22 15:20:07,624 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 92.3MB. Free memory was 46.8MB in the beginning and 46.7MB in the end (delta: 45.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 15:20:07,625 INFO L158 Benchmark]: CACSL2BoogieTranslator took 152.11ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 59.8MB in the beginning and 87.2MB in the end (delta: -27.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 15:20:07,625 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.55ms. Allocated memory is still 111.1MB. Free memory was 87.2MB in the beginning and 85.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 15:20:07,625 INFO L158 Benchmark]: Boogie Preprocessor took 23.90ms. Allocated memory is still 111.1MB. Free memory was 85.8MB in the beginning and 84.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 15:20:07,625 INFO L158 Benchmark]: RCFGBuilder took 183.01ms. Allocated memory is still 111.1MB. Free memory was 84.6MB in the beginning and 75.9MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 15:20:07,626 INFO L158 Benchmark]: TraceAbstraction took 1161.76ms. Allocated memory is still 111.1MB. Free memory was 75.3MB in the beginning and 73.5MB in the end (delta: 1.9MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2022-07-22 15:20:07,626 INFO L158 Benchmark]: Witness Printer took 41.13ms. Allocated memory is still 111.1MB. Free memory was 72.9MB in the beginning and 70.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 15:20:07,627 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 92.3MB. Free memory was 46.8MB in the beginning and 46.7MB in the end (delta: 45.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 152.11ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 59.8MB in the beginning and 87.2MB in the end (delta: -27.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.55ms. Allocated memory is still 111.1MB. Free memory was 87.2MB in the beginning and 85.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.90ms. Allocated memory is still 111.1MB. Free memory was 85.8MB in the beginning and 84.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 183.01ms. Allocated memory is still 111.1MB. Free memory was 84.6MB in the beginning and 75.9MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1161.76ms. Allocated memory is still 111.1MB. Free memory was 75.3MB in the beginning and 73.5MB in the end (delta: 1.9MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * Witness Printer took 41.13ms. Allocated memory is still 111.1MB. Free memory was 72.9MB in the beginning and 70.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: 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, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49 IncrementalHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 17 mSDtfsCounter, 49 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 15, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 10 NumberOfFragments, 26 HoareAnnotationTreeSize, 3 FomulaSimplifications, 17 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 50 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 191 SizeOfPredicates, 5 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 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: 32]: Loop Invariant Derived loop invariant: (res < a + b + 1 && cnt + res <= a + b) && a + b <= cnt + res - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: !(cond == 0) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-07-22 15:20:07,654 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