./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_58d34c78-2c76-4fc2-bf34-53750b4fee36/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_58d34c78-2c76-4fc2-bf34-53750b4fee36/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_58d34c78-2c76-4fc2-bf34-53750b4fee36/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_58d34c78-2c76-4fc2-bf34-53750b4fee36/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-write.c -s /tmp/vcloud-vcloud-master/worker/run_dir_58d34c78-2c76-4fc2-bf34-53750b4fee36/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_58d34c78-2c76-4fc2-bf34-53750b4fee36/bin/utaipan --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 Taipan --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 0.2.0-a4ecdab [2020-11-30 03:40:26,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:40:26,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:40:26,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:40:26,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:40:26,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:40:26,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:40:26,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:40:26,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:40:26,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:40:26,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:40:26,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:40:26,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:40:26,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:40:26,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:40:26,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:40:26,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:40:26,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:40:26,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:40:26,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:40:26,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:40:26,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:40:26,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:40:26,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:40:26,244 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:40:26,244 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:40:26,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:40:26,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:40:26,247 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:40:26,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:40:26,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:40:26,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:40:26,252 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:40:26,253 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:40:26,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:40:26,254 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:40:26,255 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:40:26,255 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:40:26,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:40:26,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:40:26,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:40:26,258 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_58d34c78-2c76-4fc2-bf34-53750b4fee36/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-11-30 03:40:26,297 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:40:26,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:40:26,298 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:40:26,298 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 03:40:26,298 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 03:40:26,298 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 03:40:26,298 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 03:40:26,298 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 03:40:26,298 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 03:40:26,299 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 03:40:26,299 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 03:40:26,299 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 03:40:26,299 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 03:40:26,299 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 03:40:26,299 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 03:40:26,302 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 03:40:26,303 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 03:40:26,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:40:26,303 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 03:40:26,305 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 03:40:26,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 03:40:26,311 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 03:40:26,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:40:26,312 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-30 03:40:26,312 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-30 03:40:26,312 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-30 03:40:26,314 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:40:26,314 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 03:40:26,315 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 03:40:26,315 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:40:26,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:40:26,317 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:40:26,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 03:40:26,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:40:26,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:40:26,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:40:26,320 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 03:40:26,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 03:40:26,320 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 03:40:26,320 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 03:40:26,320 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_58d34c78-2c76-4fc2-bf34-53750b4fee36/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_58d34c78-2c76-4fc2-bf34-53750b4fee36/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0dfe0f165ef563fbd088ad0368faf44ddd32870a [2020-11-30 03:40:26,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:40:26,611 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:40:26,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:40:26,615 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:40:26,616 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:40:26,617 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_58d34c78-2c76-4fc2-bf34-53750b4fee36/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-write.c [2020-11-30 03:40:26,672 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_58d34c78-2c76-4fc2-bf34-53750b4fee36/bin/utaipan/data/9a2a79ac9/88c94d2ba75a476e846ba25c671de6fb/FLAG235038828 [2020-11-30 03:40:27,162 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:40:27,162 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_58d34c78-2c76-4fc2-bf34-53750b4fee36/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-write.c [2020-11-30 03:40:27,167 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_58d34c78-2c76-4fc2-bf34-53750b4fee36/bin/utaipan/data/9a2a79ac9/88c94d2ba75a476e846ba25c671de6fb/FLAG235038828 [2020-11-30 03:40:27,528 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_58d34c78-2c76-4fc2-bf34-53750b4fee36/bin/utaipan/data/9a2a79ac9/88c94d2ba75a476e846ba25c671de6fb [2020-11-30 03:40:27,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:40:27,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:40:27,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:40:27,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:40:27,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:40:27,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:40:27" (1/1) ... [2020-11-30 03:40:27,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@313bdeab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:40:27, skipping insertion in model container [2020-11-30 03:40:27,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:40:27" (1/1) ... [2020-11-30 03:40:27,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:40:27,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:40:27,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:40:27,705 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 03:40:27,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:40:27,757 INFO L208 MainTranslator]: Completed translation [2020-11-30 03:40:27,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:40:27 WrapperNode [2020-11-30 03:40:27,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 03:40:27,759 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 03:40:27,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 03:40:27,760 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 03:40:27,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:40:27" (1/1) ... [2020-11-30 03:40:27,794 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:40:27" (1/1) ... [2020-11-30 03:40:27,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 03:40:27,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 03:40:27,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 03:40:27,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 03:40:27,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:40:27" (1/1) ... [2020-11-30 03:40:27,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:40:27" (1/1) ... [2020-11-30 03:40:27,849 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:40:27" (1/1) ... [2020-11-30 03:40:27,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:40:27" (1/1) ... [2020-11-30 03:40:27,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:40:27" (1/1) ... [2020-11-30 03:40:27,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:40:27" (1/1) ... [2020-11-30 03:40:27,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:40:27" (1/1) ... [2020-11-30 03:40:27,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 03:40:27,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 03:40:27,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 03:40:27,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 03:40:27,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:40:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_58d34c78-2c76-4fc2-bf34-53750b4fee36/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:40:27,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 03:40:27,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 03:40:27,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 03:40:27,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 03:40:27,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 03:40:27,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 03:40:28,493 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 03:40:28,493 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 03:40:28,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:40:28 BoogieIcfgContainer [2020-11-30 03:40:28,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 03:40:28,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 03:40:28,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 03:40:28,507 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 03:40:28,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 03:40:27" (1/3) ... [2020-11-30 03:40:28,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@738fc43f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:40:28, skipping insertion in model container [2020-11-30 03:40:28,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:40:27" (2/3) ... [2020-11-30 03:40:28,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@738fc43f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:40:28, skipping insertion in model container [2020-11-30 03:40:28,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:40:28" (3/3) ... [2020-11-30 03:40:28,511 INFO L111 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength_-write.c [2020-11-30 03:40:28,525 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 03:40:28,529 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-11-30 03:40:28,543 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-11-30 03:40:28,566 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 03:40:28,567 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-30 03:40:28,567 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 03:40:28,567 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 03:40:28,567 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 03:40:28,568 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 03:40:28,568 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 03:40:28,568 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 03:40:28,585 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-11-30 03:40:28,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 03:40:28,591 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:40:28,592 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 03:40:28,592 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-11-30 03:40:28,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:40:28,599 INFO L82 PathProgramCache]: Analyzing trace with hash 3121969, now seen corresponding path program 1 times [2020-11-30 03:40:28,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:40:28,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137560102] [2020-11-30 03:40:28,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:40:28,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:40:28,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:40:28,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137560102] [2020-11-30 03:40:28,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:40:28,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 03:40:28,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636578364] [2020-11-30 03:40:28,760 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 03:40:28,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:40:28,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 03:40:28,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:40:28,780 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2020-11-30 03:40:28,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:40:28,883 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2020-11-30 03:40:28,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:40:28,885 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-30 03:40:28,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:40:28,917 INFO L225 Difference]: With dead ends: 37 [2020-11-30 03:40:28,917 INFO L226 Difference]: Without dead ends: 35 [2020-11-30 03:40:28,919 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:40:28,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-30 03:40:28,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 20. [2020-11-30 03:40:28,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-30 03:40:28,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2020-11-30 03:40:28,978 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 4 [2020-11-30 03:40:28,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:40:28,978 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2020-11-30 03:40:28,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 03:40:28,979 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2020-11-30 03:40:28,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 03:40:28,979 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:40:28,979 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 03:40:28,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 03:40:28,980 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-11-30 03:40:28,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:40:28,981 INFO L82 PathProgramCache]: Analyzing trace with hash 3050837, now seen corresponding path program 1 times [2020-11-30 03:40:28,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:40:28,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742297262] [2020-11-30 03:40:28,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:40:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:40:29,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:40:29,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742297262] [2020-11-30 03:40:29,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:40:29,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 03:40:29,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43866692] [2020-11-30 03:40:29,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 03:40:29,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:40:29,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 03:40:29,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:40:29,038 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand 3 states. [2020-11-30 03:40:29,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:40:29,073 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2020-11-30 03:40:29,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:40:29,074 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-30 03:40:29,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:40:29,074 INFO L225 Difference]: With dead ends: 18 [2020-11-30 03:40:29,074 INFO L226 Difference]: Without dead ends: 18 [2020-11-30 03:40:29,075 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:40:29,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-30 03:40:29,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-30 03:40:29,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-30 03:40:29,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2020-11-30 03:40:29,078 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 4 [2020-11-30 03:40:29,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:40:29,079 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-11-30 03:40:29,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 03:40:29,079 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2020-11-30 03:40:29,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 03:40:29,079 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:40:29,082 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 03:40:29,082 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 03:40:29,083 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-11-30 03:40:29,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:40:29,084 INFO L82 PathProgramCache]: Analyzing trace with hash 3050838, now seen corresponding path program 1 times [2020-11-30 03:40:29,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:40:29,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650669467] [2020-11-30 03:40:29,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:40:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:40:29,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:40:29,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650669467] [2020-11-30 03:40:29,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:40:29,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 03:40:29,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654131204] [2020-11-30 03:40:29,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 03:40:29,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:40:29,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 03:40:29,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 03:40:29,160 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 4 states. [2020-11-30 03:40:29,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:40:29,261 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2020-11-30 03:40:29,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 03:40:29,262 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-11-30 03:40:29,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:40:29,263 INFO L225 Difference]: With dead ends: 37 [2020-11-30 03:40:29,263 INFO L226 Difference]: Without dead ends: 37 [2020-11-30 03:40:29,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 03:40:29,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-30 03:40:29,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 19. [2020-11-30 03:40:29,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-30 03:40:29,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2020-11-30 03:40:29,271 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 4 [2020-11-30 03:40:29,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:40:29,271 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2020-11-30 03:40:29,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 03:40:29,272 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2020-11-30 03:40:29,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 03:40:29,272 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:40:29,272 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 03:40:29,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 03:40:29,273 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-11-30 03:40:29,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:40:29,275 INFO L82 PathProgramCache]: Analyzing trace with hash 3048869, now seen corresponding path program 1 times [2020-11-30 03:40:29,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:40:29,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393530895] [2020-11-30 03:40:29,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:40:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 03:40:29,301 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 03:40:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 03:40:29,313 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 03:40:29,343 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 03:40:29,344 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 03:40:29,344 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 03:40:29,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 03:40:29 BoogieIcfgContainer [2020-11-30 03:40:29,367 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 03:40:29,369 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 03:40:29,369 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 03:40:29,369 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 03:40:29,370 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:40:28" (3/4) ... [2020-11-30 03:40:29,372 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 03:40:29,412 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_58d34c78-2c76-4fc2-bf34-53750b4fee36/bin/utaipan/witness.graphml [2020-11-30 03:40:29,412 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 03:40:29,416 INFO L168 Benchmark]: Toolchain (without parser) took 1882.38 ms. Allocated memory is still 121.6 MB. Free memory was 94.2 MB in the beginning and 74.8 MB in the end (delta: 19.4 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2020-11-30 03:40:29,417 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 88.1 MB. Free memory was 45.7 MB in the beginning and 45.7 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:40:29,418 INFO L168 Benchmark]: CACSL2BoogieTranslator took 223.60 ms. Allocated memory is still 121.6 MB. Free memory was 93.9 MB in the beginning and 99.6 MB in the end (delta: -5.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 03:40:29,419 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.45 ms. Allocated memory is still 121.6 MB. Free memory was 99.6 MB in the beginning and 98.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:40:29,420 INFO L168 Benchmark]: Boogie Preprocessor took 52.68 ms. Allocated memory is still 121.6 MB. Free memory was 98.3 MB in the beginning and 97.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:40:29,424 INFO L168 Benchmark]: RCFGBuilder took 617.74 ms. Allocated memory is still 121.6 MB. Free memory was 97.1 MB in the beginning and 75.7 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-30 03:40:29,427 INFO L168 Benchmark]: TraceAbstraction took 869.69 ms. Allocated memory is still 121.6 MB. Free memory was 75.3 MB in the beginning and 76.9 MB in the end (delta: -1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:40:29,427 INFO L168 Benchmark]: Witness Printer took 44.06 ms. Allocated memory is still 121.6 MB. Free memory was 76.3 MB in the beginning and 74.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:40:29,430 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 88.1 MB. Free memory was 45.7 MB in the beginning and 45.7 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 223.60 ms. Allocated memory is still 121.6 MB. Free memory was 93.9 MB in the beginning and 99.6 MB in the end (delta: -5.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.45 ms. Allocated memory is still 121.6 MB. Free memory was 99.6 MB in the beginning and 98.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.68 ms. Allocated memory is still 121.6 MB. Free memory was 98.3 MB in the beginning and 97.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 617.74 ms. Allocated memory is still 121.6 MB. Free memory was 97.1 MB in the beginning and 75.7 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 869.69 ms. Allocated memory is still 121.6 MB. Free memory was 75.3 MB in the beginning and 76.9 MB in the end (delta: -1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 44.06 ms. Allocated memory is still 121.6 MB. Free memory was 76.3 MB in the beginning and 74.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 [L22] COND TRUE i < 100 [L13] int a[n], i; [L14] i = 0 [L14] COND TRUE i < size [L15] a[i] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 30 SDtfs, 54 SDslu, 24 SDs, 0 SdLazy, 65 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=1, 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, 3 MinimizatonAttempts, 33 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 93 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! Received shutdown request...