./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/scopes1.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_73690e7b-86c3-463a-8957-e43728690967/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_73690e7b-86c3-463a-8957-e43728690967/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_73690e7b-86c3-463a-8957-e43728690967/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_73690e7b-86c3-463a-8957-e43728690967/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_73690e7b-86c3-463a-8957-e43728690967/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_73690e7b-86c3-463a-8957-e43728690967/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 95e3931fe811aa62c0e25f30e6d631683a52857f ........................................................................................................................................................................................................................................ 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 [2020-11-28 03:19:11,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:19:11,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:19:11,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:19:11,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:19:11,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:19:11,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:19:11,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:19:11,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:19:11,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:19:11,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:19:11,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:19:11,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:19:11,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:19:11,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:19:11,589 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:19:11,591 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:19:11,594 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:19:11,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:19:11,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:19:11,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:19:11,609 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:19:11,611 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:19:11,612 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:19:11,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:19:11,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:19:11,621 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:19:11,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:19:11,625 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:19:11,626 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:19:11,626 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:19:11,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:19:11,630 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:19:11,631 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:19:11,632 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:19:11,632 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:19:11,633 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:19:11,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:19:11,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:19:11,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:19:11,637 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:19:11,640 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_73690e7b-86c3-463a-8957-e43728690967/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-28 03:19:11,681 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:19:11,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:19:11,683 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:19:11,683 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:19:11,684 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:19:11,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:19:11,684 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:19:11,684 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:19:11,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:19:11,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:19:11,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:19:11,686 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 03:19:11,686 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 03:19:11,687 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 03:19:11,687 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:19:11,687 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 03:19:11,687 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:19:11,687 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:19:11,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:19:11,688 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:19:11,688 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:19:11,688 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:19:11,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:19:11,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:19:11,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:19:11,689 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:19:11,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:19:11,690 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:19:11,690 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_73690e7b-86c3-463a-8957-e43728690967/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_73690e7b-86c3-463a-8957-e43728690967/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95e3931fe811aa62c0e25f30e6d631683a52857f [2020-11-28 03:19:11,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:19:11,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:19:11,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:19:11,969 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:19:11,970 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:19:11,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_73690e7b-86c3-463a-8957-e43728690967/bin/uautomizer/../../sv-benchmarks/c/memsafety-ext3/scopes1.c [2020-11-28 03:19:12,048 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_73690e7b-86c3-463a-8957-e43728690967/bin/uautomizer/data/e1e598592/5f4b23d79b724492a0291d9c36f524c5/FLAG91acae823 [2020-11-28 03:19:12,452 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:19:12,452 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_73690e7b-86c3-463a-8957-e43728690967/sv-benchmarks/c/memsafety-ext3/scopes1.c [2020-11-28 03:19:12,458 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_73690e7b-86c3-463a-8957-e43728690967/bin/uautomizer/data/e1e598592/5f4b23d79b724492a0291d9c36f524c5/FLAG91acae823 [2020-11-28 03:19:12,472 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_73690e7b-86c3-463a-8957-e43728690967/bin/uautomizer/data/e1e598592/5f4b23d79b724492a0291d9c36f524c5 [2020-11-28 03:19:12,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:19:12,476 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-28 03:19:12,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:12,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:19:12,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:19:12,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:12" (1/1) ... [2020-11-28 03:19:12,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4def440a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:12, skipping insertion in model container [2020-11-28 03:19:12,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:12" (1/1) ... [2020-11-28 03:19:12,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:19:12,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:19:12,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:12,768 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:19:12,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:12,795 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:19:12,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:12 WrapperNode [2020-11-28 03:19:12,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:12,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:19:12,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:19:12,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:19:12,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:12" (1/1) ... [2020-11-28 03:19:12,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:12" (1/1) ... [2020-11-28 03:19:12,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:12" (1/1) ... [2020-11-28 03:19:12,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:12" (1/1) ... [2020-11-28 03:19:12,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:12" (1/1) ... [2020-11-28 03:19:12,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:12" (1/1) ... [2020-11-28 03:19:12,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:12" (1/1) ... [2020-11-28 03:19:12,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:19:12,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:19:12,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:19:12,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:19:12,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_73690e7b-86c3-463a-8957-e43728690967/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 [2020-11-28 03:19:12,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-28 03:19:12,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:19:12,919 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-28 03:19:12,919 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-28 03:19:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-28 03:19:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:19:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:19:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:19:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:19:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-28 03:19:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:19:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:19:13,208 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:19:13,209 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-28 03:19:13,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:13 BoogieIcfgContainer [2020-11-28 03:19:13,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:19:13,220 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:19:13,220 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:19:13,233 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:19:13,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:19:12" (1/3) ... [2020-11-28 03:19:13,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440c9ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:13, skipping insertion in model container [2020-11-28 03:19:13,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:12" (2/3) ... [2020-11-28 03:19:13,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440c9ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:13, skipping insertion in model container [2020-11-28 03:19:13,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:13" (3/3) ... [2020-11-28 03:19:13,242 INFO L111 eAbstractionObserver]: Analyzing ICFG scopes1.c [2020-11-28 03:19:13,252 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:19:13,256 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-28 03:19:13,268 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-28 03:19:13,290 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:19:13,295 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-28 03:19:13,295 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:19:13,295 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:19:13,295 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:19:13,295 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:19:13,296 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:19:13,296 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:19:13,315 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-11-28 03:19:13,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:19:13,327 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:13,327 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:13,328 INFO L429 AbstractCegarLoop]: === Iteration 1 === [mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION]=== [2020-11-28 03:19:13,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:13,342 INFO L82 PathProgramCache]: Analyzing trace with hash -2123086958, now seen corresponding path program 1 times [2020-11-28 03:19:13,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:13,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570648260] [2020-11-28 03:19:13,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:13,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:13,489 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:13,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:13,515 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:13,551 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:13,552 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:19:13,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:19:13,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:19:13 BoogieIcfgContainer [2020-11-28 03:19:13,574 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:19:13,575 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:19:13,575 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:19:13,575 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:19:13,575 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:13" (3/4) ... [2020-11-28 03:19:13,577 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:19:13,611 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_73690e7b-86c3-463a-8957-e43728690967/bin/uautomizer/witness.graphml [2020-11-28 03:19:13,611 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:19:13,614 INFO L168 Benchmark]: Toolchain (without parser) took 1136.73 ms. Allocated memory is still 90.2 MB. Free memory was 59.8 MB in the beginning and 40.6 MB in the end (delta: 19.2 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:13,614 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 90.2 MB. Free memory was 49.1 MB in the beginning and 49.0 MB in the end (delta: 40.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:13,615 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.77 ms. Allocated memory is still 90.2 MB. Free memory was 59.6 MB in the beginning and 68.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:13,616 INFO L168 Benchmark]: Boogie Preprocessor took 44.45 ms. Allocated memory is still 90.2 MB. Free memory was 68.7 MB in the beginning and 67.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:13,617 INFO L168 Benchmark]: RCFGBuilder took 374.72 ms. Allocated memory is still 90.2 MB. Free memory was 67.5 MB in the beginning and 55.3 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:13,617 INFO L168 Benchmark]: TraceAbstraction took 354.51 ms. Allocated memory is still 90.2 MB. Free memory was 54.9 MB in the beginning and 42.2 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:13,618 INFO L168 Benchmark]: Witness Printer took 37.06 ms. Allocated memory is still 90.2 MB. Free memory was 42.2 MB in the beginning and 40.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:13,621 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 90.2 MB. Free memory was 49.1 MB in the beginning and 49.0 MB in the end (delta: 40.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 319.77 ms. Allocated memory is still 90.2 MB. Free memory was 59.6 MB in the beginning and 68.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.45 ms. Allocated memory is still 90.2 MB. Free memory was 68.7 MB in the beginning and 67.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 374.72 ms. Allocated memory is still 90.2 MB. Free memory was 67.5 MB in the beginning and 55.3 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 354.51 ms. Allocated memory is still 90.2 MB. Free memory was 54.9 MB in the beginning and 42.2 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 37.06 ms. Allocated memory is still 90.2 MB. Free memory was 42.2 MB in the beginning and 40.6 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: 16]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L4] int *myPointerA = ((void*) 0); [L5] int *myPointerB = ((void*) 0); [L8] int myNumberA = 7; [L9] myPointerA = &myNumberA [L8] int myNumberA = 7; [L13] int myNumberB = 3; [L14] myPointerB = &myNumberB VAL [myNumberB={8:0}, myPointerA={5:0}, myPointerB={8:0}] [L16] \read(*myPointerA) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 18 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, 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=18occurred 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, 7 NumberOfCodeBlocks, 7 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...