./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/scopes2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e50b98fa-13f0-41fe-86b3-982c879a9b26/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e50b98fa-13f0-41fe-86b3-982c879a9b26/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e50b98fa-13f0-41fe-86b3-982c879a9b26/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e50b98fa-13f0-41fe-86b3-982c879a9b26/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes2.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e50b98fa-13f0-41fe-86b3-982c879a9b26/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e50b98fa-13f0-41fe-86b3-982c879a9b26/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 a06ac35b6270d716926f4cab09091bb160bdd736 .................................................................................................................................................................................................................................. 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 0.1.24-cad4683 [2019-10-22 09:00:38,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:38,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:38,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:38,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:38,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:38,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:38,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:38,840 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:38,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:38,844 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:38,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:38,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:38,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:38,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:38,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:38,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:38,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:38,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:38,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:38,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:38,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:38,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:38,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:38,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:38,864 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:38,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:38,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:38,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:38,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:38,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:38,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:38,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:38,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:38,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:38,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:38,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:38,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:38,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:38,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:38,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:38,872 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e50b98fa-13f0-41fe-86b3-982c879a9b26/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-10-22 09:00:38,885 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:38,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:38,886 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:38,886 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:38,887 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:38,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:38,887 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:00:38,887 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:00:38,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:00:38,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:00:38,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:38,888 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 09:00:38,888 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 09:00:38,888 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 09:00:38,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:00:38,888 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:00:38,889 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:38,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:38,898 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:38,898 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:00:38,898 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:00:38,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:00:38,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:38,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:00:38,899 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:00:38,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:00:38,899 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/working_dir_e50b98fa-13f0-41fe-86b3-982c879a9b26/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 -> a06ac35b6270d716926f4cab09091bb160bdd736 [2019-10-22 09:00:38,935 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:38,943 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:38,947 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:38,951 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:38,951 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:38,952 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e50b98fa-13f0-41fe-86b3-982c879a9b26/bin/uautomizer/../../sv-benchmarks/c/memsafety-ext3/scopes2.c [2019-10-22 09:00:39,005 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e50b98fa-13f0-41fe-86b3-982c879a9b26/bin/uautomizer/data/badbe2478/c107edecc2ab42f1a8d569836d34290d/FLAGe3841d7ba [2019-10-22 09:00:39,400 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:39,401 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e50b98fa-13f0-41fe-86b3-982c879a9b26/sv-benchmarks/c/memsafety-ext3/scopes2.c [2019-10-22 09:00:39,407 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e50b98fa-13f0-41fe-86b3-982c879a9b26/bin/uautomizer/data/badbe2478/c107edecc2ab42f1a8d569836d34290d/FLAGe3841d7ba [2019-10-22 09:00:39,422 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e50b98fa-13f0-41fe-86b3-982c879a9b26/bin/uautomizer/data/badbe2478/c107edecc2ab42f1a8d569836d34290d [2019-10-22 09:00:39,425 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:39,426 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 09:00:39,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:39,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:39,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:39,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:39" (1/1) ... [2019-10-22 09:00:39,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bb01580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:39, skipping insertion in model container [2019-10-22 09:00:39,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:39" (1/1) ... [2019-10-22 09:00:39,440 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:00:39,454 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:00:39,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:39,643 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:00:39,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:39,729 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:00:39,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:39 WrapperNode [2019-10-22 09:00:39,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:39,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:00:39,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:00:39,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:00:39,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:39" (1/1) ... [2019-10-22 09:00:39,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:39" (1/1) ... [2019-10-22 09:00:39,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:39" (1/1) ... [2019-10-22 09:00:39,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:39" (1/1) ... [2019-10-22 09:00:39,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:39" (1/1) ... [2019-10-22 09:00:39,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:39" (1/1) ... [2019-10-22 09:00:39,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:39" (1/1) ... [2019-10-22 09:00:39,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:00:39,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:00:39,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:00:39,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:00:39,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e50b98fa-13f0-41fe-86b3-982c879a9b26/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 [2019-10-22 09:00:39,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 09:00:39,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:00:39,807 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 09:00:39,807 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-22 09:00:39,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 09:00:39,807 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 09:00:39,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:00:39,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 09:00:39,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:00:39,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:00:39,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 09:00:39,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:00:39,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:00:40,169 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:00:40,170 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-22 09:00:40,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:40 BoogieIcfgContainer [2019-10-22 09:00:40,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:00:40,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:00:40,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:00:40,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:00:40,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:00:39" (1/3) ... [2019-10-22 09:00:40,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50566c44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:40, skipping insertion in model container [2019-10-22 09:00:40,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:39" (2/3) ... [2019-10-22 09:00:40,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50566c44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:40, skipping insertion in model container [2019-10-22 09:00:40,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:40" (3/3) ... [2019-10-22 09:00:40,179 INFO L109 eAbstractionObserver]: Analyzing ICFG scopes2.c [2019-10-22 09:00:40,188 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:00:40,199 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-10-22 09:00:40,211 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-10-22 09:00:40,232 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:00:40,232 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 09:00:40,232 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:00:40,232 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:00:40,233 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:00:40,233 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:00:40,233 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:00:40,233 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:00:40,249 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-10-22 09:00:40,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 09:00:40,258 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:40,260 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:40,262 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 09:00:40,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:40,267 INFO L82 PathProgramCache]: Analyzing trace with hash 262489660, now seen corresponding path program 1 times [2019-10-22 09:00:40,273 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:40,273 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714015745] [2019-10-22 09:00:40,274 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:40,274 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:40,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:40,420 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:40,421 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:00:40,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:00:40 BoogieIcfgContainer [2019-10-22 09:00:40,444 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:00:40,444 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:00:40,444 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:00:40,445 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:00:40,445 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:40" (3/4) ... [2019-10-22 09:00:40,447 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 09:00:40,484 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e50b98fa-13f0-41fe-86b3-982c879a9b26/bin/uautomizer/witness.graphml [2019-10-22 09:00:40,484 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:00:40,486 INFO L168 Benchmark]: Toolchain (without parser) took 1059.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 943.2 MB in the beginning and 1.1 GB in the end (delta: -176.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:40,487 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:40,487 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 943.2 MB in the beginning and 1.2 GB in the end (delta: -217.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:40,488 INFO L168 Benchmark]: Boogie Preprocessor took 28.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:40,488 INFO L168 Benchmark]: RCFGBuilder took 412.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:40,489 INFO L168 Benchmark]: TraceAbstraction took 271.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:40,490 INFO L168 Benchmark]: Witness Printer took 40.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:40,492 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 303.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 943.2 MB in the beginning and 1.2 GB in the end (delta: -217.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 412.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 271.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Witness Printer took 40.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 18]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L5] int *myPointerA = ((void*) 0); [L6] int *myPointerB = ((void*) 0); [L8] COND TRUE __VERIFIER_nondet_int() [L10] int myNumberA = 7; [L11] myPointerA = &myNumberA [L10] int myNumberA = 7; VAL [myPointerA={-1:0}, myPointerB={0:0}] [L15] int myNumberB = 3; [L16] myPointerB = &myNumberB VAL [myNumberB={-2:0}, myPointerA={-1:0}, myPointerB={-2:0}] [L18] \read(*myPointerA) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 5 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 9 NumberOfCodeBlocks, 9 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...