./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-write.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-write.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0dfe0f165ef563fbd088ad0368faf44ddd32870a ....................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 17:40:38,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 17:40:38,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 17:40:38,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 17:40:38,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 17:40:38,965 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 17:40:38,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 17:40:38,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 17:40:38,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 17:40:38,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 17:40:38,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 17:40:38,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 17:40:38,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 17:40:38,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 17:40:38,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 17:40:38,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 17:40:38,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 17:40:38,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 17:40:38,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 17:40:38,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 17:40:38,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 17:40:38,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 17:40:38,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 17:40:38,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 17:40:39,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 17:40:39,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 17:40:39,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 17:40:39,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 17:40:39,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 17:40:39,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 17:40:39,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 17:40:39,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 17:40:39,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 17:40:39,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 17:40:39,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 17:40:39,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 17:40:39,007 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 17:40:39,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 17:40:39,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 17:40:39,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 17:40:39,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 17:40:39,010 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-30 17:40:39,049 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 17:40:39,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 17:40:39,051 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 17:40:39,051 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 17:40:39,052 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 17:40:39,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 17:40:39,053 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 17:40:39,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 17:40:39,053 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 17:40:39,054 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 17:40:39,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 17:40:39,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 17:40:39,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 17:40:39,055 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-30 17:40:39,055 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-30 17:40:39,055 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-30 17:40:39,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 17:40:39,056 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-30 17:40:39,056 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 17:40:39,056 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 17:40:39,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 17:40:39,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 17:40:39,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 17:40:39,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:40:39,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 17:40:39,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 17:40:39,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-30 17:40:39,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-30 17:40:39,058 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 17:40:39,058 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0dfe0f165ef563fbd088ad0368faf44ddd32870a [2021-08-30 17:40:39,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 17:40:39,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 17:40:39,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 17:40:39,357 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 17:40:39,357 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 17:40:39,358 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-write.c [2021-08-30 17:40:39,414 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a9fc51dc/cb1707231c9e428292f093dff5556839/FLAG0190901aa [2021-08-30 17:40:39,840 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 17:40:39,841 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-write.c [2021-08-30 17:40:39,846 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a9fc51dc/cb1707231c9e428292f093dff5556839/FLAG0190901aa [2021-08-30 17:40:39,862 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a9fc51dc/cb1707231c9e428292f093dff5556839 [2021-08-30 17:40:39,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 17:40:39,866 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-30 17:40:39,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 17:40:39,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 17:40:39,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 17:40:39,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:40:39" (1/1) ... [2021-08-30 17:40:39,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f87e06a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:39, skipping insertion in model container [2021-08-30 17:40:39,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:40:39" (1/1) ... [2021-08-30 17:40:39,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 17:40:39,895 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 17:40:40,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:40:40,034 INFO L203 MainTranslator]: Completed pre-run [2021-08-30 17:40:40,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 17:40:40,061 INFO L208 MainTranslator]: Completed translation [2021-08-30 17:40:40,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:40 WrapperNode [2021-08-30 17:40:40,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 17:40:40,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-30 17:40:40,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-30 17:40:40,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-30 17:40:40,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:40" (1/1) ... [2021-08-30 17:40:40,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:40" (1/1) ... [2021-08-30 17:40:40,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:40" (1/1) ... [2021-08-30 17:40:40,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:40" (1/1) ... [2021-08-30 17:40:40,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:40" (1/1) ... [2021-08-30 17:40:40,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:40" (1/1) ... [2021-08-30 17:40:40,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:40" (1/1) ... [2021-08-30 17:40:40,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-30 17:40:40,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-30 17:40:40,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-30 17:40:40,113 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-30 17:40:40,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:40" (1/1) ... [2021-08-30 17:40:40,125 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 17:40:40,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 17:40:40,155 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) [2021-08-30 17:40:40,156 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 [2021-08-30 17:40:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-30 17:40:40,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-30 17:40:40,183 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-08-30 17:40:40,183 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-30 17:40:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-08-30 17:40:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-30 17:40:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-30 17:40:40,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-30 17:40:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-30 17:40:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-30 17:40:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-30 17:40:40,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-30 17:40:40,318 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-30 17:40:40,320 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-08-30 17:40:40,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:40:40 BoogieIcfgContainer [2021-08-30 17:40:40,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-30 17:40:40,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-30 17:40:40,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-30 17:40:40,327 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-30 17:40:40,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 05:40:39" (1/3) ... [2021-08-30 17:40:40,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@119a755a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:40:40, skipping insertion in model container [2021-08-30 17:40:40,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:40" (2/3) ... [2021-08-30 17:40:40,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@119a755a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:40:40, skipping insertion in model container [2021-08-30 17:40:40,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:40:40" (3/3) ... [2021-08-30 17:40:40,331 INFO L111 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength_-write.c [2021-08-30 17:40:40,335 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-30 17:40:40,335 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-08-30 17:40:40,377 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-30 17:40:40,386 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=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 [2021-08-30 17:40:40,386 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-08-30 17:40:40,409 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 25 states have (on average 1.6) internal successors, (40), 33 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-08-30 17:40:40,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-30 17:40:40,415 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:40:40,415 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:40:40,416 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr2REQUIRES_VIOLATION === [fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr1REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION (and 3 more)] === [2021-08-30 17:40:40,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:40:40,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1909189377, now seen corresponding path program 1 times [2021-08-30 17:40:40,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 17:40:40,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975535937] [2021-08-30 17:40:40,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:40:40,431 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 17:40:40,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:40:40,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-08-30 17:40:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 17:40:40,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 17:40:40,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 17:40:40,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975535937] [2021-08-30 17:40:40,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975535937] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 17:40:40,653 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 17:40:40,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-30 17:40:40,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862835057] [2021-08-30 17:40:40,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 17:40:40,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 17:40:40,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 17:40:40,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-30 17:40:40,697 INFO L87 Difference]: Start difference. First operand has 40 states, 25 states have (on average 1.6) internal successors, (40), 33 states have internal predecessors, (40), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-30 17:40:40,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 17:40:40,880 INFO L93 Difference]: Finished difference Result 58 states and 63 transitions. [2021-08-30 17:40:40,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 17:40:40,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-08-30 17:40:40,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 17:40:40,887 INFO L225 Difference]: With dead ends: 58 [2021-08-30 17:40:40,893 INFO L226 Difference]: Without dead ends: 54 [2021-08-30 17:40:40,895 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 42.72ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-30 17:40:40,898 INFO L928 BasicCegarLoop]: 7 mSDtfsCounter, 27 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 112.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.17ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 146.07ms IncrementalHoareTripleChecker+Time [2021-08-30 17:40:40,900 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 14 Invalid, 106 Unknown, 0 Unchecked, 4.17ms Time], IncrementalHoareTripleChecker [7 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 146.07ms Time] [2021-08-30 17:40:40,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-08-30 17:40:40,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 39. [2021-08-30 17:40:40,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 33 states have internal predecessors, (37), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-08-30 17:40:40,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2021-08-30 17:40:40,947 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 10 [2021-08-30 17:40:40,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 17:40:40,948 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2021-08-30 17:40:40,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-30 17:40:40,948 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2021-08-30 17:40:40,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-30 17:40:40,949 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 17:40:40,949 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 17:40:40,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-30 17:40:40,950 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting fooErr0ASSERT_VIOLATIONARRAY_INDEX === [fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr1REQUIRES_VIOLATION, fooErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION (and 3 more)] === [2021-08-30 17:40:40,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 17:40:40,954 INFO L82 PathProgramCache]: Analyzing trace with hash -941983064, now seen corresponding path program 1 times [2021-08-30 17:40:40,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 17:40:40,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851902430] [2021-08-30 17:40:40,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 17:40:40,955 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 17:40:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-30 17:40:40,995 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-30 17:40:41,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-30 17:40:41,025 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-30 17:40:41,025 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-30 17:40:41,028 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location fooErr0ASSERT_VIOLATIONARRAY_INDEX (7 of 8 remaining) [2021-08-30 17:40:41,029 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location fooErr1REQUIRES_VIOLATION (6 of 8 remaining) [2021-08-30 17:40:41,030 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location fooErr2REQUIRES_VIOLATION (5 of 8 remaining) [2021-08-30 17:40:41,030 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION (4 of 8 remaining) [2021-08-30 17:40:41,030 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION (3 of 8 remaining) [2021-08-30 17:40:41,030 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION (2 of 8 remaining) [2021-08-30 17:40:41,031 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION (1 of 8 remaining) [2021-08-30 17:40:41,031 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4ENSURES_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2021-08-30 17:40:41,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-30 17:40:41,042 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-30 17:40:41,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 05:40:41 BoogieIcfgContainer [2021-08-30 17:40:41,061 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-30 17:40:41,062 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-30 17:40:41,062 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-30 17:40:41,063 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-30 17:40:41,063 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:40:40" (3/4) ... [2021-08-30 17:40:41,065 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-30 17:40:41,103 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-30 17:40:41,103 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-30 17:40:41,105 INFO L158 Benchmark]: Toolchain (without parser) took 1238.02ms. Allocated memory was 50.3MB in the beginning and 67.1MB in the end (delta: 16.8MB). Free memory was 26.1MB in the beginning and 42.8MB in the end (delta: -16.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:40:41,105 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 50.3MB. Free memory was 32.3MB in the beginning and 32.2MB in the end (delta: 32.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:40:41,106 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.36ms. Allocated memory is still 50.3MB. Free memory was 26.0MB in the beginning and 28.2MB in the end (delta: -2.2MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2021-08-30 17:40:41,107 INFO L158 Benchmark]: Boogie Preprocessor took 49.80ms. Allocated memory was 50.3MB in the beginning and 67.1MB in the end (delta: 16.8MB). Free memory was 28.2MB in the beginning and 51.1MB in the end (delta: -22.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-30 17:40:41,109 INFO L158 Benchmark]: RCFGBuilder took 209.58ms. Allocated memory is still 67.1MB. Free memory was 51.1MB in the beginning and 41.9MB in the end (delta: 9.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-30 17:40:41,109 INFO L158 Benchmark]: TraceAbstraction took 736.68ms. Allocated memory is still 67.1MB. Free memory was 41.4MB in the beginning and 44.5MB in the end (delta: -3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 17:40:41,110 INFO L158 Benchmark]: Witness Printer took 41.23ms. Allocated memory is still 67.1MB. Free memory was 44.2MB in the beginning and 42.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-30 17:40:41,113 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 50.3MB. Free memory was 32.3MB in the beginning and 32.2MB in the end (delta: 32.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 193.36ms. Allocated memory is still 50.3MB. Free memory was 26.0MB in the beginning and 28.2MB in the end (delta: -2.2MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.80ms. Allocated memory was 50.3MB in the beginning and 67.1MB in the end (delta: 16.8MB). Free memory was 28.2MB in the beginning and 51.1MB in the end (delta: -22.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 209.58ms. Allocated memory is still 67.1MB. Free memory was 51.1MB in the beginning and 41.9MB in the end (delta: 9.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 736.68ms. Allocated memory is still 67.1MB. Free memory was 41.4MB in the beginning and 44.5MB in the end (delta: -3.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 41.23ms. Allocated memory is still 67.1MB. Free memory was 44.2MB in the beginning and 42.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 15]: array index can be out of bounds array index can be out of bounds We found a FailurePath: [L21] int i, b[100]; [L22] i = 0 VAL [b={2:0}, i=0] [L22] COND TRUE i < 100 VAL [b={2:0}, i=0] [L23] CALL foo(i, b, i + 1) VAL [\old(n)=0, \old(size)=1, b={2:0}] [L13] int a[n], i; [L14] i = 0 VAL [\old(n)=0, \old(size)=1, b={2:0}, b={2:0}, i=0, n=0, size=1] [L14] COND TRUE i < size VAL [\old(n)=0, \old(size)=1, b={2:0}, b={2:0}, i=0, n=0, size=1] [L15] a[i] VAL [\old(n)=0, \old(size)=1, b={2:0}, b={2:0}, i=0, n=0, size=1] - UnprovableResult [Line: 15]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 15]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 23]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 23]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 20]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 40 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 664.60ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 10.71ms, AutomataDifference: 224.74ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 18.98ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28 SdHoareTripleChecker+Valid, 146.07ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 112.24ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 99 IncrementalHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 7 mSDtfsCounter, 99 mSolverCounterSat, 4.17ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 42.72ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 33.87ms AutomataMinimizationTime, 1 MinimizatonAttempts, 15 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 17.95ms SsaConstructionTime, 56.86ms SatisfiabilityAnalysisTime, 133.68ms InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-08-30 17:40:41,150 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...