./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 20ed64ec 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 a4c882ea31ded5d72491d0989b7efed83bec9369 ...................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 03:02:00,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 03:02:00,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 03:02:00,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 03:02:00,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 03:02:00,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 03:02:00,814 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 03:02:00,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 03:02:00,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 03:02:00,833 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 03:02:00,834 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 03:02:00,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 03:02:00,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 03:02:00,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 03:02:00,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 03:02:00,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 03:02:00,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 03:02:00,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 03:02:00,849 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 03:02:00,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 03:02:00,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 03:02:00,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 03:02:00,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 03:02:00,858 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 03:02:00,862 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 03:02:00,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 03:02:00,863 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 03:02:00,864 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 03:02:00,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 03:02:00,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 03:02:00,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 03:02:00,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 03:02:00,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 03:02:00,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 03:02:00,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 03:02:00,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 03:02:00,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 03:02:00,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 03:02:00,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 03:02:00,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 03:02:00,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 03:02:00,877 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 03:02:00,911 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 03:02:00,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 03:02:00,912 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 03:02:00,912 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 03:02:00,914 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 03:02:00,914 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 03:02:00,914 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 03:02:00,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 03:02:00,915 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 03:02:00,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 03:02:00,916 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 03:02:00,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 03:02:00,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 03:02:00,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 03:02:00,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 03:02:00,917 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 03:02:00,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 03:02:00,917 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 03:02:00,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 03:02:00,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 03:02:00,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 03:02:00,918 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 03:02:00,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 03:02:00,918 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 03:02:00,918 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 03:02:00,919 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 03:02:00,919 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 03:02:00,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 03:02:00,919 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 03:02:00,919 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 03:02:00,919 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4c882ea31ded5d72491d0989b7efed83bec9369 [2021-08-26 03:02:01,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 03:02:01,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 03:02:01,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 03:02:01,222 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 03:02:01,223 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 03:02:01,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/array-2.c [2021-08-26 03:02:01,273 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6361a369/e876541e78354be58284b0c37b2a995f/FLAGaf628505b [2021-08-26 03:02:01,730 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 03:02:01,730 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/array-2.c [2021-08-26 03:02:01,735 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6361a369/e876541e78354be58284b0c37b2a995f/FLAGaf628505b [2021-08-26 03:02:01,754 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6361a369/e876541e78354be58284b0c37b2a995f [2021-08-26 03:02:01,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 03:02:01,759 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 03:02:01,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 03:02:01,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 03:02:01,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 03:02:01,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 03:02:01" (1/1) ... [2021-08-26 03:02:01,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f98087d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:02:01, skipping insertion in model container [2021-08-26 03:02:01,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 03:02:01" (1/1) ... [2021-08-26 03:02:01,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 03:02:01,785 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 03:02:01,881 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/array-2.c[319,332] [2021-08-26 03:02:01,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 03:02:01,898 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 03:02:01,938 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/array-2.c[319,332] [2021-08-26 03:02:01,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 03:02:01,955 INFO L208 MainTranslator]: Completed translation [2021-08-26 03:02:01,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:02:01 WrapperNode [2021-08-26 03:02:01,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 03:02:01,957 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 03:02:01,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 03:02:01,958 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 03:02:01,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:02:01" (1/1) ... [2021-08-26 03:02:01,969 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:02:01" (1/1) ... [2021-08-26 03:02:01,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 03:02:01,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 03:02:01,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 03:02:01,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 03:02:01,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:02:01" (1/1) ... [2021-08-26 03:02:01,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:02:01" (1/1) ... [2021-08-26 03:02:02,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:02:01" (1/1) ... [2021-08-26 03:02:02,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:02:01" (1/1) ... [2021-08-26 03:02:02,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:02:01" (1/1) ... [2021-08-26 03:02:02,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:02:01" (1/1) ... [2021-08-26 03:02:02,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:02:01" (1/1) ... [2021-08-26 03:02:02,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 03:02:02,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 03:02:02,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 03:02:02,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 03:02:02,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:02:01" (1/1) ... [2021-08-26 03:02:02,042 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 03:02:02,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 03:02:02,058 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 03:02:02,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 03:02:02,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 03:02:02,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 03:02:02,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-26 03:02:02,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 03:02:02,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 03:02:02,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-26 03:02:02,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 03:02:02,298 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 03:02:02,298 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-26 03:02:02,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:02:02 BoogieIcfgContainer [2021-08-26 03:02:02,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 03:02:02,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 03:02:02,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 03:02:02,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 03:02:02,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 03:02:01" (1/3) ... [2021-08-26 03:02:02,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@364289ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 03:02:02, skipping insertion in model container [2021-08-26 03:02:02,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:02:01" (2/3) ... [2021-08-26 03:02:02,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@364289ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 03:02:02, skipping insertion in model container [2021-08-26 03:02:02,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:02:02" (3/3) ... [2021-08-26 03:02:02,315 INFO L111 eAbstractionObserver]: Analyzing ICFG array-2.c [2021-08-26 03:02:02,319 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 03:02:02,319 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 03:02:02,363 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 03:02:02,371 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 03:02:02,372 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 03:02:02,384 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) [2021-08-26 03:02:02,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-26 03:02:02,388 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 03:02:02,389 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-26 03:02:02,390 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 03:02:02,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 03:02:02,395 INFO L82 PathProgramCache]: Analyzing trace with hash 889937703, now seen corresponding path program 1 times [2021-08-26 03:02:02,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 03:02:02,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981083325] [2021-08-26 03:02:02,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:02:02,403 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 03:02:02,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 03:02:02,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 03:02:02,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 03:02:02,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981083325] [2021-08-26 03:02:02,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981083325] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 03:02:02,565 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 03:02:02,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 03:02:02,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248906194] [2021-08-26 03:02:02,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 03:02:02,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 03:02:02,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 03:02:02,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 03:02:02,594 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) [2021-08-26 03:02:02,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 03:02:02,605 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2021-08-26 03:02:02,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 03:02:02,607 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 [2021-08-26 03:02:02,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 03:02:02,613 INFO L225 Difference]: With dead ends: 21 [2021-08-26 03:02:02,614 INFO L226 Difference]: Without dead ends: 9 [2021-08-26 03:02:02,616 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 03:02:02,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-08-26 03:02:02,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-08-26 03:02:02,643 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) [2021-08-26 03:02:02,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-08-26 03:02:02,645 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2021-08-26 03:02:02,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 03:02:02,646 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-08-26 03:02:02,647 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) [2021-08-26 03:02:02,647 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2021-08-26 03:02:02,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-26 03:02:02,647 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 03:02:02,648 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-26 03:02:02,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 03:02:02,648 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 03:02:02,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 03:02:02,650 INFO L82 PathProgramCache]: Analyzing trace with hash 889610002, now seen corresponding path program 1 times [2021-08-26 03:02:02,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 03:02:02,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334440102] [2021-08-26 03:02:02,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:02:02,652 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 03:02:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 03:02:02,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 03:02:02,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 03:02:02,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334440102] [2021-08-26 03:02:02,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334440102] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 03:02:02,842 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 03:02:02,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 03:02:02,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349650762] [2021-08-26 03:02:02,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 03:02:02,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 03:02:02,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 03:02:02,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 03:02:02,845 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) [2021-08-26 03:02:02,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 03:02:02,860 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2021-08-26 03:02:02,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 03:02:02,861 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 [2021-08-26 03:02:02,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 03:02:02,861 INFO L225 Difference]: With dead ends: 16 [2021-08-26 03:02:02,861 INFO L226 Difference]: Without dead ends: 12 [2021-08-26 03:02:02,862 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 03:02:02,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-08-26 03:02:02,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2021-08-26 03:02:02,864 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) [2021-08-26 03:02:02,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2021-08-26 03:02:02,865 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2021-08-26 03:02:02,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 03:02:02,865 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-08-26 03:02:02,865 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) [2021-08-26 03:02:02,866 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2021-08-26 03:02:02,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-08-26 03:02:02,866 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 03:02:02,866 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 03:02:02,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 03:02:02,867 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 03:02:02,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 03:02:02,867 INFO L82 PathProgramCache]: Analyzing trace with hash -332619814, now seen corresponding path program 1 times [2021-08-26 03:02:02,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 03:02:02,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018510624] [2021-08-26 03:02:02,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:02:02,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 03:02:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 03:02:02,889 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 03:02:02,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 03:02:02,923 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-26 03:02:02,923 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 03:02:02,924 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:02:02,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-26 03:02:02,930 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 03:02:02,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 03:02:02 BoogieIcfgContainer [2021-08-26 03:02:02,947 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 03:02:02,948 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 03:02:02,948 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 03:02:02,948 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 03:02:02,949 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:02:02" (3/4) ... [2021-08-26 03:02:02,950 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-26 03:02:02,986 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 03:02:02,986 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 03:02:02,988 INFO L168 Benchmark]: Toolchain (without parser) took 1227.52 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.9 MB in the beginning and 41.2 MB in the end (delta: -14.4 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. [2021-08-26 03:02:02,988 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 50.3 MB. Free memory was 32.0 MB in the beginning and 31.9 MB in the end (delta: 71.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 03:02:02,989 INFO L168 Benchmark]: CACSL2BoogieTranslator took 195.73 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.7 MB in the beginning and 43.8 MB in the end (delta: -17.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-26 03:02:02,989 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.70 ms. Allocated memory is still 60.8 MB. Free memory was 43.6 MB in the beginning and 42.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 03:02:02,990 INFO L168 Benchmark]: Boogie Preprocessor took 40.59 ms. Allocated memory is still 60.8 MB. Free memory was 42.2 MB in the beginning and 41.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 03:02:02,990 INFO L168 Benchmark]: RCFGBuilder took 274.46 ms. Allocated memory is still 60.8 MB. Free memory was 41.0 MB in the beginning and 43.3 MB in the end (delta: -2.3 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. [2021-08-26 03:02:02,991 INFO L168 Benchmark]: TraceAbstraction took 638.65 ms. Allocated memory is still 60.8 MB. Free memory was 42.8 MB in the beginning and 24.3 MB in the end (delta: 18.5 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. [2021-08-26 03:02:02,991 INFO L168 Benchmark]: Witness Printer took 38.23 ms. Allocated memory is still 60.8 MB. Free memory was 24.3 MB in the beginning and 41.2 MB in the end (delta: -17.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 03:02:02,993 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 50.3 MB. Free memory was 32.0 MB in the beginning and 31.9 MB in the end (delta: 71.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 195.73 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.7 MB in the beginning and 43.8 MB in the end (delta: -17.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.70 ms. Allocated memory is still 60.8 MB. Free memory was 43.6 MB in the beginning and 42.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.59 ms. Allocated memory is still 60.8 MB. Free memory was 42.2 MB in the beginning and 41.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 274.46 ms. Allocated memory is still 60.8 MB. Free memory was 41.0 MB in the beginning and 43.3 MB in the end (delta: -2.3 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 638.65 ms. Allocated memory is still 60.8 MB. Free memory was 42.8 MB in the beginning and 24.3 MB in the end (delta: 18.5 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. * Witness Printer took 38.23 ms. Allocated memory is still 60.8 MB. Free memory was 24.3 MB in the beginning and 41.2 MB in the end (delta: -17.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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 [L21] COND TRUE j