./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops/array-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loops/array-2.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 8df294a242896c5bf5c0de59a6565bdcc2051c441282e921edcd2c4fccba4c24 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 12:14:18,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 12:14:18,552 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 12:14:18,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 12:14:18,577 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 12:14:18,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 12:14:18,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 12:14:18,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 12:14:18,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 12:14:18,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 12:14:18,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 12:14:18,585 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 12:14:18,586 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 12:14:18,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 12:14:18,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 12:14:18,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 12:14:18,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 12:14:18,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 12:14:18,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 12:14:18,593 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 12:14:18,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 12:14:18,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 12:14:18,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 12:14:18,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 12:14:18,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 12:14:18,613 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 12:14:18,613 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 12:14:18,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 12:14:18,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 12:14:18,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 12:14:18,616 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 12:14:18,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 12:14:18,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 12:14:18,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 12:14:18,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 12:14:18,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 12:14:18,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 12:14:18,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 12:14:18,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 12:14:18,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 12:14:18,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 12:14:18,621 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 12:14:18,640 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 12:14:18,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 12:14:18,641 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 12:14:18,641 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 12:14:18,642 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 12:14:18,642 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 12:14:18,643 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 12:14:18,643 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 12:14:18,643 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 12:14:18,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 12:14:18,644 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 12:14:18,644 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 12:14:18,644 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 12:14:18,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 12:14:18,645 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 12:14:18,645 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 12:14:18,645 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 12:14:18,645 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 12:14:18,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 12:14:18,645 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 12:14:18,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 12:14:18,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 12:14:18,646 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 12:14:18,646 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 12:14:18,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 12:14:18,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 12:14:18,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 12:14:18,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 12:14:18,647 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 12:14:18,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 12:14:18,648 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 12:14:18,648 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 12:14:18,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 12:14:18,648 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 12:14:18,649 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8df294a242896c5bf5c0de59a6565bdcc2051c441282e921edcd2c4fccba4c24 [2021-12-21 12:14:18,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 12:14:18,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 12:14:18,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 12:14:18,888 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 12:14:18,889 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 12:14:18,890 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/array-2.c [2021-12-21 12:14:18,961 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e66316005/5998f9f1245949f1855ccf9759eebed5/FLAGcc53e4d13 [2021-12-21 12:14:19,311 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 12:14:19,311 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/array-2.c [2021-12-21 12:14:19,316 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e66316005/5998f9f1245949f1855ccf9759eebed5/FLAGcc53e4d13 [2021-12-21 12:14:19,325 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e66316005/5998f9f1245949f1855ccf9759eebed5 [2021-12-21 12:14:19,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 12:14:19,328 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 12:14:19,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 12:14:19,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 12:14:19,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 12:14:19,335 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 12:14:19" (1/1) ... [2021-12-21 12:14:19,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ede59d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:14:19, skipping insertion in model container [2021-12-21 12:14:19,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 12:14:19" (1/1) ... [2021-12-21 12:14:19,342 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 12:14:19,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 12:14:19,501 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/loops/array-2.c[319,332] [2021-12-21 12:14:19,513 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 12:14:19,519 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 12:14:19,529 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/loops/array-2.c[319,332] [2021-12-21 12:14:19,534 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 12:14:19,545 INFO L208 MainTranslator]: Completed translation [2021-12-21 12:14:19,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:14:19 WrapperNode [2021-12-21 12:14:19,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 12:14:19,547 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 12:14:19,547 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 12:14:19,547 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 12:14:19,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:14:19" (1/1) ... [2021-12-21 12:14:19,559 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:14:19" (1/1) ... [2021-12-21 12:14:19,575 INFO L137 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 51 [2021-12-21 12:14:19,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 12:14:19,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 12:14:19,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 12:14:19,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 12:14:19,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:14:19" (1/1) ... [2021-12-21 12:14:19,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:14:19" (1/1) ... [2021-12-21 12:14:19,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:14:19" (1/1) ... [2021-12-21 12:14:19,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:14:19" (1/1) ... [2021-12-21 12:14:19,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:14:19" (1/1) ... [2021-12-21 12:14:19,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:14:19" (1/1) ... [2021-12-21 12:14:19,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:14:19" (1/1) ... [2021-12-21 12:14:19,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 12:14:19,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 12:14:19,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 12:14:19,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 12:14:19,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:14:19" (1/1) ... [2021-12-21 12:14:19,607 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 12:14:19,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 12:14:19,637 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) [2021-12-21 12:14:19,659 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 [2021-12-21 12:14:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 12:14:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 12:14:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 12:14:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 12:14:19,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 12:14:19,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 12:14:19,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 12:14:19,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 12:14:19,739 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 12:14:19,740 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 12:14:19,819 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 12:14:19,824 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 12:14:19,824 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 12:14:19,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:14:19 BoogieIcfgContainer [2021-12-21 12:14:19,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 12:14:19,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 12:14:19,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 12:14:19,831 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 12:14:19,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 12:14:19" (1/3) ... [2021-12-21 12:14:19,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63d7df89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 12:14:19, skipping insertion in model container [2021-12-21 12:14:19,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:14:19" (2/3) ... [2021-12-21 12:14:19,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63d7df89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 12:14:19, skipping insertion in model container [2021-12-21 12:14:19,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:14:19" (3/3) ... [2021-12-21 12:14:19,834 INFO L111 eAbstractionObserver]: Analyzing ICFG array-2.c [2021-12-21 12:14:19,840 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 12:14:19,841 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 12:14:19,877 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 12:14:19,883 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, 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 12:14:19,883 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 12:14:19,894 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 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) [2021-12-21 12:14:19,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-21 12:14:19,899 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:14:19,900 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-21 12:14:19,900 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:14:19,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:14:19,905 INFO L85 PathProgramCache]: Analyzing trace with hash 889937703, now seen corresponding path program 1 times [2021-12-21 12:14:19,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:14:19,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141626431] [2021-12-21 12:14:19,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:14:19,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:14:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:14:20,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 12:14:20,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:14:20,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141626431] [2021-12-21 12:14:20,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141626431] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:14:20,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:14:20,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 12:14:20,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992600992] [2021-12-21 12:14:20,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:14:20,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 12:14:20,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:14:20,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 12:14:20,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 12:14:20,107 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 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 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-12-21 12:14:20,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:14:20,120 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2021-12-21 12:14:20,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 12:14:20,123 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-12-21 12:14:20,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:14:20,136 INFO L225 Difference]: With dead ends: 21 [2021-12-21 12:14:20,136 INFO L226 Difference]: Without dead ends: 9 [2021-12-21 12:14:20,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 12:14:20,142 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 12:14:20,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 12:14:20,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-12-21 12:14:20,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-12-21 12:14:20,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 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) [2021-12-21 12:14:20,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-12-21 12:14:20,173 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2021-12-21 12:14:20,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:14:20,174 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-12-21 12:14:20,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-12-21 12:14:20,174 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2021-12-21 12:14:20,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-21 12:14:20,175 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:14:20,175 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-21 12:14:20,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 12:14:20,177 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:14:20,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:14:20,180 INFO L85 PathProgramCache]: Analyzing trace with hash 889610002, now seen corresponding path program 1 times [2021-12-21 12:14:20,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:14:20,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104225939] [2021-12-21 12:14:20,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:14:20,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:14:20,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:14:20,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 12:14:20,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:14:20,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104225939] [2021-12-21 12:14:20,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104225939] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:14:20,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:14:20,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 12:14:20,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889723408] [2021-12-21 12:14:20,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:14:20,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 12:14:20,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:14:20,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 12:14:20,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 12:14:20,341 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-12-21 12:14:20,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:14:20,362 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2021-12-21 12:14:20,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 12:14:20,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2021-12-21 12:14:20,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:14:20,364 INFO L225 Difference]: With dead ends: 16 [2021-12-21 12:14:20,364 INFO L226 Difference]: Without dead ends: 12 [2021-12-21 12:14:20,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 12:14:20,365 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 3 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 12:14:20,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 12 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 12:14:20,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-12-21 12:14:20,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2021-12-21 12:14:20,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 12:14:20,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2021-12-21 12:14:20,380 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2021-12-21 12:14:20,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:14:20,380 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-12-21 12:14:20,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-12-21 12:14:20,381 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2021-12-21 12:14:20,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-21 12:14:20,381 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:14:20,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 12:14:20,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 12:14:20,382 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:14:20,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:14:20,382 INFO L85 PathProgramCache]: Analyzing trace with hash -332619814, now seen corresponding path program 1 times [2021-12-21 12:14:20,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:14:20,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201300698] [2021-12-21 12:14:20,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:14:20,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:14:20,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 12:14:20,425 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 12:14:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 12:14:20,485 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 12:14:20,485 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 12:14:20,486 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 12:14:20,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 12:14:20,491 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-21 12:14:20,494 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 12:14:20,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 12:14:20 BoogieIcfgContainer [2021-12-21 12:14:20,513 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 12:14:20,513 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 12:14:20,514 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 12:14:20,514 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 12:14:20,514 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:14:19" (3/4) ... [2021-12-21 12:14:20,516 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-21 12:14:20,561 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 12:14:20,561 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 12:14:20,562 INFO L158 Benchmark]: Toolchain (without parser) took 1234.03ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 54.2MB in the beginning and 67.0MB in the end (delta: -12.8MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2021-12-21 12:14:20,562 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 88.1MB. Free memory was 43.5MB in the beginning and 43.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 12:14:20,563 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.18ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 54.1MB in the beginning and 82.0MB in the end (delta: -27.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 12:14:20,563 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.43ms. Allocated memory is still 107.0MB. Free memory was 82.0MB in the beginning and 80.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 12:14:20,564 INFO L158 Benchmark]: Boogie Preprocessor took 19.37ms. Allocated memory is still 107.0MB. Free memory was 80.5MB in the beginning and 79.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 12:14:20,564 INFO L158 Benchmark]: RCFGBuilder took 230.01ms. Allocated memory is still 107.0MB. Free memory was 79.4MB in the beginning and 70.1MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-21 12:14:20,569 INFO L158 Benchmark]: TraceAbstraction took 685.26ms. Allocated memory is still 107.0MB. Free memory was 69.4MB in the beginning and 68.6MB in the end (delta: 782.6kB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2021-12-21 12:14:20,570 INFO L158 Benchmark]: Witness Printer took 47.97ms. Allocated memory is still 107.0MB. Free memory was 68.6MB in the beginning and 67.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 12:14:20,572 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 88.1MB. Free memory was 43.5MB in the beginning and 43.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 217.18ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 54.1MB in the beginning and 82.0MB in the end (delta: -27.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.43ms. Allocated memory is still 107.0MB. Free memory was 82.0MB in the beginning and 80.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.37ms. Allocated memory is still 107.0MB. Free memory was 80.5MB in the beginning and 79.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 230.01ms. Allocated memory is still 107.0MB. Free memory was 79.4MB in the beginning and 70.1MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 685.26ms. Allocated memory is still 107.0MB. Free memory was 69.4MB in the beginning and 68.6MB in the end (delta: 782.6kB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. * Witness Printer took 47.97ms. Allocated memory is still 107.0MB. Free memory was 68.6MB in the beginning and 67.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 7]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L15] unsigned int SIZE=1; [L16] unsigned int j,k; [L17] int array[SIZE], menor; [L19] menor = __VERIFIER_nondet_int() [L21] j=0 VAL [array={5:0}, j=0, menor=0, SIZE=1] [L21] COND TRUE jmenor) [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L7] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 21 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-12-21 12:14:20,600 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE