./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9fe0d211-2a6e-40fe-8943-af22f209e787/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9fe0d211-2a6e-40fe-8943-af22f209e787/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9fe0d211-2a6e-40fe-8943-af22f209e787/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9fe0d211-2a6e-40fe-8943-af22f209e787/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-write.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9fe0d211-2a6e-40fe-8943-af22f209e787/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9fe0d211-2a6e-40fe-8943-af22f209e787/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 0.2.0-7b2dab5 [2020-12-03 12:31:20,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 12:31:20,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 12:31:20,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 12:31:20,569 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 12:31:20,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 12:31:20,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 12:31:20,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 12:31:20,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 12:31:20,594 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 12:31:20,595 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 12:31:20,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 12:31:20,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 12:31:20,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 12:31:20,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 12:31:20,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 12:31:20,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 12:31:20,611 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 12:31:20,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 12:31:20,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 12:31:20,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 12:31:20,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 12:31:20,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 12:31:20,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 12:31:20,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 12:31:20,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 12:31:20,635 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 12:31:20,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 12:31:20,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 12:31:20,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 12:31:20,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 12:31:20,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 12:31:20,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 12:31:20,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 12:31:20,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 12:31:20,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 12:31:20,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 12:31:20,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 12:31:20,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 12:31:20,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 12:31:20,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 12:31:20,648 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9fe0d211-2a6e-40fe-8943-af22f209e787/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-12-03 12:31:20,673 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 12:31:20,673 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 12:31:20,674 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 12:31:20,675 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-03 12:31:20,675 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-03 12:31:20,675 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-03 12:31:20,675 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-03 12:31:20,676 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-03 12:31:20,676 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-03 12:31:20,676 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-03 12:31:20,676 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-03 12:31:20,677 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-03 12:31:20,677 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-03 12:31:20,677 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-03 12:31:20,678 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-03 12:31:20,678 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 12:31:20,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 12:31:20,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 12:31:20,679 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 12:31:20,680 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-03 12:31:20,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 12:31:20,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 12:31:20,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 12:31:20,681 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-03 12:31:20,681 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-03 12:31:20,681 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-03 12:31:20,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 12:31:20,682 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-03 12:31:20,682 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 12:31:20,682 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 12:31:20,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 12:31:20,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 12:31:20,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:31:20,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 12:31:20,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 12:31:20,684 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-03 12:31:20,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 12:31:20,684 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 12:31:20,684 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 12:31:20,685 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_9fe0d211-2a6e-40fe-8943-af22f209e787/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9fe0d211-2a6e-40fe-8943-af22f209e787/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0dfe0f165ef563fbd088ad0368faf44ddd32870a [2020-12-03 12:31:20,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 12:31:20,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 12:31:20,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 12:31:20,965 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 12:31:20,966 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 12:31:20,967 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9fe0d211-2a6e-40fe-8943-af22f209e787/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-write.c [2020-12-03 12:31:21,048 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9fe0d211-2a6e-40fe-8943-af22f209e787/bin/utaipan/data/d539ac70c/66c350e23f7541568210a344b19aadee/FLAGc9f91be62 [2020-12-03 12:31:21,539 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 12:31:21,540 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9fe0d211-2a6e-40fe-8943-af22f209e787/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-write.c [2020-12-03 12:31:21,553 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9fe0d211-2a6e-40fe-8943-af22f209e787/bin/utaipan/data/d539ac70c/66c350e23f7541568210a344b19aadee/FLAGc9f91be62 [2020-12-03 12:31:21,922 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9fe0d211-2a6e-40fe-8943-af22f209e787/bin/utaipan/data/d539ac70c/66c350e23f7541568210a344b19aadee [2020-12-03 12:31:21,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 12:31:21,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 12:31:21,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 12:31:21,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 12:31:21,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 12:31:21,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:31:21" (1/1) ... [2020-12-03 12:31:21,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@544899a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:21, skipping insertion in model container [2020-12-03 12:31:21,939 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:31:21" (1/1) ... [2020-12-03 12:31:21,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 12:31:21,962 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 12:31:22,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:31:22,176 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 12:31:22,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:31:22,203 INFO L208 MainTranslator]: Completed translation [2020-12-03 12:31:22,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:22 WrapperNode [2020-12-03 12:31:22,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 12:31:22,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 12:31:22,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 12:31:22,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 12:31:22,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:22" (1/1) ... [2020-12-03 12:31:22,222 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:22" (1/1) ... [2020-12-03 12:31:22,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 12:31:22,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 12:31:22,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 12:31:22,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 12:31:22,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:22" (1/1) ... [2020-12-03 12:31:22,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:22" (1/1) ... [2020-12-03 12:31:22,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:22" (1/1) ... [2020-12-03 12:31:22,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:22" (1/1) ... [2020-12-03 12:31:22,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:22" (1/1) ... [2020-12-03 12:31:22,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:22" (1/1) ... [2020-12-03 12:31:22,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:22" (1/1) ... [2020-12-03 12:31:22,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 12:31:22,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 12:31:22,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 12:31:22,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 12:31:22,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9fe0d211-2a6e-40fe-8943-af22f209e787/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 [2020-12-03 12:31:22,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-03 12:31:22,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 12:31:22,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 12:31:22,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-03 12:31:22,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 12:31:22,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-03 12:31:22,864 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 12:31:22,864 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-03 12:31:22,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:31:22 BoogieIcfgContainer [2020-12-03 12:31:22,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 12:31:22,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 12:31:22,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 12:31:22,879 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 12:31:22,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 12:31:21" (1/3) ... [2020-12-03 12:31:22,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff808a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:31:22, skipping insertion in model container [2020-12-03 12:31:22,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:22" (2/3) ... [2020-12-03 12:31:22,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff808a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:31:22, skipping insertion in model container [2020-12-03 12:31:22,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:31:22" (3/3) ... [2020-12-03 12:31:22,889 INFO L111 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength_-write.c [2020-12-03 12:31:22,905 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 12:31:22,909 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-12-03 12:31:22,918 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-12-03 12:31:22,935 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 12:31:22,935 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-03 12:31:22,936 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 12:31:22,936 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 12:31:22,936 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 12:31:22,936 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 12:31:22,936 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 12:31:22,936 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 12:31:22,950 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-12-03 12:31:22,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-03 12:31:22,956 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:31:22,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-03 12:31:22,958 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]=== [2020-12-03 12:31:22,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:31:22,964 INFO L82 PathProgramCache]: Analyzing trace with hash 3121969, now seen corresponding path program 1 times [2020-12-03 12:31:22,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:31:22,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796663338] [2020-12-03 12:31:22,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:31:23,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:31:23,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:31:23,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796663338] [2020-12-03 12:31:23,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:31:23,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 12:31:23,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119522417] [2020-12-03 12:31:23,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:31:23,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:31:23,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:31:23,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:31:23,202 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2020-12-03 12:31:23,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:31:23,274 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2020-12-03 12:31:23,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:31:23,277 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-03 12:31:23,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:31:23,285 INFO L225 Difference]: With dead ends: 37 [2020-12-03 12:31:23,286 INFO L226 Difference]: Without dead ends: 35 [2020-12-03 12:31:23,287 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 [2020-12-03 12:31:23,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-12-03 12:31:23,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 20. [2020-12-03 12:31:23,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-12-03 12:31:23,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2020-12-03 12:31:23,334 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 4 [2020-12-03 12:31:23,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:31:23,335 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2020-12-03 12:31:23,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:31:23,335 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2020-12-03 12:31:23,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-03 12:31:23,336 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:31:23,336 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-03 12:31:23,336 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-03 12:31:23,338 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]=== [2020-12-03 12:31:23,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:31:23,341 INFO L82 PathProgramCache]: Analyzing trace with hash 3050837, now seen corresponding path program 1 times [2020-12-03 12:31:23,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:31:23,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11862288] [2020-12-03 12:31:23,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:31:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:31:23,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:31:23,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11862288] [2020-12-03 12:31:23,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:31:23,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-03 12:31:23,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342860345] [2020-12-03 12:31:23,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:31:23,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:31:23,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:31:23,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:31:23,433 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand 3 states. [2020-12-03 12:31:23,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:31:23,474 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2020-12-03 12:31:23,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:31:23,475 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-03 12:31:23,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:31:23,477 INFO L225 Difference]: With dead ends: 18 [2020-12-03 12:31:23,478 INFO L226 Difference]: Without dead ends: 18 [2020-12-03 12:31:23,478 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 [2020-12-03 12:31:23,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-12-03 12:31:23,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-12-03 12:31:23,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-12-03 12:31:23,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2020-12-03 12:31:23,491 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 4 [2020-12-03 12:31:23,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:31:23,491 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-12-03 12:31:23,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:31:23,492 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2020-12-03 12:31:23,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-03 12:31:23,493 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:31:23,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-03 12:31:23,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-03 12:31:23,494 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]=== [2020-12-03 12:31:23,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:31:23,496 INFO L82 PathProgramCache]: Analyzing trace with hash 3050838, now seen corresponding path program 1 times [2020-12-03 12:31:23,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:31:23,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37328500] [2020-12-03 12:31:23,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:31:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:31:23,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:31:23,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37328500] [2020-12-03 12:31:23,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:31:23,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:31:23,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744555066] [2020-12-03 12:31:23,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:31:23,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:31:23,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:31:23,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:31:23,607 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 4 states. [2020-12-03 12:31:23,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:31:23,729 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2020-12-03 12:31:23,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:31:23,730 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-12-03 12:31:23,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:31:23,731 INFO L225 Difference]: With dead ends: 37 [2020-12-03 12:31:23,732 INFO L226 Difference]: Without dead ends: 37 [2020-12-03 12:31:23,732 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:31:23,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-03 12:31:23,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 19. [2020-12-03 12:31:23,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-03 12:31:23,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2020-12-03 12:31:23,736 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 4 [2020-12-03 12:31:23,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:31:23,737 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2020-12-03 12:31:23,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:31:23,737 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2020-12-03 12:31:23,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-03 12:31:23,738 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:31:23,738 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-03 12:31:23,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-03 12:31:23,738 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]=== [2020-12-03 12:31:23,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:31:23,739 INFO L82 PathProgramCache]: Analyzing trace with hash 3048869, now seen corresponding path program 1 times [2020-12-03 12:31:23,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:31:23,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869812818] [2020-12-03 12:31:23,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:31:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 12:31:23,751 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 12:31:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 12:31:23,761 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 12:31:23,778 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-03 12:31:23,779 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-03 12:31:23,779 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-03 12:31:23,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 12:31:23 BoogieIcfgContainer [2020-12-03 12:31:23,797 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 12:31:23,798 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 12:31:23,798 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 12:31:23,798 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 12:31:23,799 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:31:22" (3/4) ... [2020-12-03 12:31:23,801 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-03 12:31:23,844 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9fe0d211-2a6e-40fe-8943-af22f209e787/bin/utaipan/witness.graphml [2020-12-03 12:31:23,845 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 12:31:23,847 INFO L168 Benchmark]: Toolchain (without parser) took 1918.25 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 58.1 MB in the beginning and 54.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:31:23,848 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 88.1 MB. Free memory was 44.2 MB in the beginning and 44.1 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:31:23,849 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.76 ms. Allocated memory is still 88.1 MB. Free memory was 57.9 MB in the beginning and 66.3 MB in the end (delta: -8.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-03 12:31:23,849 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.99 ms. Allocated memory is still 88.1 MB. Free memory was 66.3 MB in the beginning and 65.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:31:23,850 INFO L168 Benchmark]: Boogie Preprocessor took 26.54 ms. Allocated memory is still 88.1 MB. Free memory was 65.0 MB in the beginning and 63.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:31:23,852 INFO L168 Benchmark]: RCFGBuilder took 595.35 ms. Allocated memory is still 88.1 MB. Free memory was 63.9 MB in the beginning and 42.1 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-12-03 12:31:23,854 INFO L168 Benchmark]: TraceAbstraction took 928.90 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 41.7 MB in the beginning and 55.8 MB in the end (delta: -14.2 MB). Peak memory consumption was 8.3 MB. Max. memory is 16.1 GB. [2020-12-03 12:31:23,859 INFO L168 Benchmark]: Witness Printer took 47.56 ms. Allocated memory is still 107.0 MB. Free memory was 55.8 MB in the beginning and 54.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:31:23,863 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 88.1 MB. Free memory was 44.2 MB in the beginning and 44.1 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 272.76 ms. Allocated memory is still 88.1 MB. Free memory was 57.9 MB in the beginning and 66.3 MB in the end (delta: -8.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.99 ms. Allocated memory is still 88.1 MB. Free memory was 66.3 MB in the beginning and 65.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.54 ms. Allocated memory is still 88.1 MB. Free memory was 65.0 MB in the beginning and 63.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 595.35 ms. Allocated memory is still 88.1 MB. Free memory was 63.9 MB in the beginning and 42.1 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 928.90 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 41.7 MB in the beginning and 55.8 MB in the end (delta: -14.2 MB). Peak memory consumption was 8.3 MB. Max. memory is 16.1 GB. * Witness Printer took 47.56 ms. Allocated memory is still 107.0 MB. Free memory was 55.8 MB in the beginning and 54.3 MB in the end (delta: 1.5 MB). There was no memory consumed. 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: 0.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 30 SDtfs, 54 SDslu, 21 SDs, 0 SdLazy, 64 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 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, 108 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...