./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/scopes5.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_f0392e4f-564b-4a59-bbb7-34c85af2ae81/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f0392e4f-564b-4a59-bbb7-34c85af2ae81/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f0392e4f-564b-4a59-bbb7-34c85af2ae81/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f0392e4f-564b-4a59-bbb7-34c85af2ae81/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f0392e4f-564b-4a59-bbb7-34c85af2ae81/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f0392e4f-564b-4a59-bbb7-34c85af2ae81/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 767ec81abc1d53fd457a174594199b33ee40a3be ................................................................................................................................................................................................................................. 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 [2020-11-29 21:56:01,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:56:01,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:56:01,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:56:01,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:56:01,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:56:01,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:56:01,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:56:01,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:56:01,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:56:01,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:56:01,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:56:01,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:56:01,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:56:01,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:56:01,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:56:01,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:56:01,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:56:01,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:56:02,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:56:02,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:56:02,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:56:02,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:56:02,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:56:02,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:56:02,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:56:02,016 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:56:02,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:56:02,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:56:02,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:56:02,021 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:56:02,022 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:56:02,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:56:02,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:56:02,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:56:02,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:56:02,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:56:02,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:56:02,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:56:02,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:56:02,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:56:02,042 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f0392e4f-564b-4a59-bbb7-34c85af2ae81/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-29 21:56:02,093 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:56:02,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:56:02,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:56:02,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:56:02,096 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:56:02,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:56:02,096 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:56:02,097 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 21:56:02,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:56:02,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:56:02,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:56:02,098 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 21:56:02,098 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 21:56:02,099 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 21:56:02,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:56:02,099 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-29 21:56:02,099 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:56:02,100 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:56:02,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:56:02,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:56:02,101 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:56:02,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 21:56:02,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:56:02,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:56:02,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:56:02,102 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 21:56:02,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 21:56:02,103 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:56:02,103 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_f0392e4f-564b-4a59-bbb7-34c85af2ae81/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f0392e4f-564b-4a59-bbb7-34c85af2ae81/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 767ec81abc1d53fd457a174594199b33ee40a3be [2020-11-29 21:56:02,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:56:02,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:56:02,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:56:02,514 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:56:02,515 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:56:02,516 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f0392e4f-564b-4a59-bbb7-34c85af2ae81/bin/uautomizer/../../sv-benchmarks/c/memsafety-ext3/scopes5.c [2020-11-29 21:56:02,599 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0392e4f-564b-4a59-bbb7-34c85af2ae81/bin/uautomizer/data/7c48b1bdf/426fe8bb36624a64bbec0c890804fdb7/FLAG8e5386f65 [2020-11-29 21:56:03,192 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:56:03,199 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f0392e4f-564b-4a59-bbb7-34c85af2ae81/sv-benchmarks/c/memsafety-ext3/scopes5.c [2020-11-29 21:56:03,213 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0392e4f-564b-4a59-bbb7-34c85af2ae81/bin/uautomizer/data/7c48b1bdf/426fe8bb36624a64bbec0c890804fdb7/FLAG8e5386f65 [2020-11-29 21:56:03,535 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f0392e4f-564b-4a59-bbb7-34c85af2ae81/bin/uautomizer/data/7c48b1bdf/426fe8bb36624a64bbec0c890804fdb7 [2020-11-29 21:56:03,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:56:03,539 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-29 21:56:03,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:56:03,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:56:03,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:56:03,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:56:03" (1/1) ... [2020-11-29 21:56:03,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19fcbdbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:56:03, skipping insertion in model container [2020-11-29 21:56:03,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:56:03" (1/1) ... [2020-11-29 21:56:03,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:56:03,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:56:03,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:56:03,741 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:56:03,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:56:03,776 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:56:03,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:56:03 WrapperNode [2020-11-29 21:56:03,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:56:03,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:56:03,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:56:03,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:56:03,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:56:03" (1/1) ... [2020-11-29 21:56:03,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:56:03" (1/1) ... [2020-11-29 21:56:03,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:56:03" (1/1) ... [2020-11-29 21:56:03,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:56:03" (1/1) ... [2020-11-29 21:56:03,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:56:03" (1/1) ... [2020-11-29 21:56:03,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:56:03" (1/1) ... [2020-11-29 21:56:03,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:56:03" (1/1) ... [2020-11-29 21:56:03,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:56:03,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:56:03,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:56:03,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:56:03,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:56:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0392e4f-564b-4a59-bbb7-34c85af2ae81/bin/uautomizer/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 [2020-11-29 21:56:03,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-29 21:56:03,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:56:03,954 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-29 21:56:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-29 21:56:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:56:03,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 21:56:03,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 21:56:03,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-29 21:56:03,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:56:03,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 21:56:04,222 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:56:04,222 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-29 21:56:04,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:56:04 BoogieIcfgContainer [2020-11-29 21:56:04,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:56:04,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 21:56:04,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 21:56:04,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 21:56:04,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:56:03" (1/3) ... [2020-11-29 21:56:04,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2af64c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:56:04, skipping insertion in model container [2020-11-29 21:56:04,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:56:03" (2/3) ... [2020-11-29 21:56:04,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2af64c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:56:04, skipping insertion in model container [2020-11-29 21:56:04,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:56:04" (3/3) ... [2020-11-29 21:56:04,236 INFO L111 eAbstractionObserver]: Analyzing ICFG scopes5.c [2020-11-29 21:56:04,249 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 21:56:04,254 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-29 21:56:04,270 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-29 21:56:04,296 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 21:56:04,297 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-29 21:56:04,297 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 21:56:04,297 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:56:04,297 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:56:04,298 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 21:56:04,298 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:56:04,298 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 21:56:04,318 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-11-29 21:56:04,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 21:56:04,338 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:56:04,339 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:56:04,340 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr2ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-11-29 21:56:04,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:56:04,357 INFO L82 PathProgramCache]: Analyzing trace with hash 2096341080, now seen corresponding path program 1 times [2020-11-29 21:56:04,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:56:04,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144800066] [2020-11-29 21:56:04,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:56:04,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:56:04,535 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:56:04,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:56:04,571 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:56:04,604 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:56:04,605 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 21:56:04,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 21:56:04,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 09:56:04 BoogieIcfgContainer [2020-11-29 21:56:04,629 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 21:56:04,631 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:56:04,632 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:56:04,632 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:56:04,633 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:56:04" (3/4) ... [2020-11-29 21:56:04,635 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 21:56:04,707 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f0392e4f-564b-4a59-bbb7-34c85af2ae81/bin/uautomizer/witness.graphml [2020-11-29 21:56:04,708 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:56:04,711 INFO L168 Benchmark]: Toolchain (without parser) took 1169.73 ms. Allocated memory is still 98.6 MB. Free memory was 69.4 MB in the beginning and 52.8 MB in the end (delta: 16.6 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2020-11-29 21:56:04,713 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 98.6 MB. Free memory is still 55.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:56:04,717 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.68 ms. Allocated memory is still 98.6 MB. Free memory was 69.2 MB in the beginning and 77.4 MB in the end (delta: -8.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:56:04,720 INFO L168 Benchmark]: Boogie Preprocessor took 86.18 ms. Allocated memory is still 98.6 MB. Free memory was 77.4 MB in the beginning and 76.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 21:56:04,722 INFO L168 Benchmark]: RCFGBuilder took 357.27 ms. Allocated memory is still 98.6 MB. Free memory was 76.2 MB in the beginning and 66.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:56:04,723 INFO L168 Benchmark]: TraceAbstraction took 402.83 ms. Allocated memory is still 98.6 MB. Free memory was 65.7 MB in the beginning and 54.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:56:04,725 INFO L168 Benchmark]: Witness Printer took 76.35 ms. Allocated memory is still 98.6 MB. Free memory was 54.4 MB in the beginning and 52.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:56:04,732 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 98.6 MB. Free memory is still 55.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 237.68 ms. Allocated memory is still 98.6 MB. Free memory was 69.2 MB in the beginning and 77.4 MB in the end (delta: -8.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 86.18 ms. Allocated memory is still 98.6 MB. Free memory was 77.4 MB in the beginning and 76.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 357.27 ms. Allocated memory is still 98.6 MB. Free memory was 76.2 MB in the beginning and 66.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 402.83 ms. Allocated memory is still 98.6 MB. Free memory was 65.7 MB in the beginning and 54.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 76.35 ms. Allocated memory is still 98.6 MB. Free memory was 54.4 MB in the beginning and 52.8 MB in the end (delta: 1.6 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: 7]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L2] int* p; [L4] int a[10]; [L5] p = a [L7] p[0] = 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 15 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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...