./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.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_9a1e84b9-6741-4485-8ff9-947022d536ec/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9a1e84b9-6741-4485-8ff9-947022d536ec/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9a1e84b9-6741-4485-8ff9-947022d536ec/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9a1e84b9-6741-4485-8ff9-947022d536ec/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9a1e84b9-6741-4485-8ff9-947022d536ec/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9a1e84b9-6741-4485-8ff9-947022d536ec/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 aeae4642ea0f346b37f312868ec7e7128e333d20 ............................................................................................................................................................................................................................................................................ 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 09:01:20,747 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:01:20,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:01:20,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:01:20,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:01:20,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:01:20,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:01:20,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:01:20,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:01:20,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:01:20,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:01:20,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:01:20,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:01:20,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:01:20,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:01:20,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:01:20,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:01:20,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:01:20,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:01:20,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:01:20,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:01:20,791 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:01:20,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:01:20,794 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:01:20,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:01:20,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:01:20,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:01:20,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:01:20,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:01:20,797 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:01:20,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:01:20,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:01:20,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:01:20,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:01:20,799 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:01:20,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:01:20,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:01:20,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:01:20,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:01:20,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:01:20,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:01:20,806 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9a1e84b9-6741-4485-8ff9-947022d536ec/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-10-22 09:01:20,816 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:01:20,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:01:20,818 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:01:20,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:01:20,818 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:01:20,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:01:20,818 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:01:20,818 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:01:20,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:01:20,819 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:01:20,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:01:20,819 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 09:01:20,819 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 09:01:20,819 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 09:01:20,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:01:20,820 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:01:20,820 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:01:20,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:01:20,820 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:01:20,820 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:01:20,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:01:20,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:01:20,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:01:20,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:01:20,821 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:01:20,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:01:20,822 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_9a1e84b9-6741-4485-8ff9-947022d536ec/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 -> aeae4642ea0f346b37f312868ec7e7128e333d20 [2019-10-22 09:01:20,867 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:01:20,879 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:01:20,882 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:01:20,883 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:01:20,883 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:01:20,884 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9a1e84b9-6741-4485-8ff9-947022d536ec/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.c [2019-10-22 09:01:20,929 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9a1e84b9-6741-4485-8ff9-947022d536ec/bin/uautomizer/data/c41999931/7cae601d01334612bdd4fb9d8baea00d/FLAG26e1d23ed [2019-10-22 09:01:21,321 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:01:21,322 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9a1e84b9-6741-4485-8ff9-947022d536ec/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.c [2019-10-22 09:01:21,327 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9a1e84b9-6741-4485-8ff9-947022d536ec/bin/uautomizer/data/c41999931/7cae601d01334612bdd4fb9d8baea00d/FLAG26e1d23ed [2019-10-22 09:01:21,341 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9a1e84b9-6741-4485-8ff9-947022d536ec/bin/uautomizer/data/c41999931/7cae601d01334612bdd4fb9d8baea00d [2019-10-22 09:01:21,344 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:01:21,346 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 09:01:21,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:21,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:01:21,352 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:01:21,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:21" (1/1) ... [2019-10-22 09:01:21,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6136fe7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:21, skipping insertion in model container [2019-10-22 09:01:21,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:21" (1/1) ... [2019-10-22 09:01:21,364 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:21,378 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:21,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:21,557 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:01:21,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:21,650 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:01:21,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:21 WrapperNode [2019-10-22 09:01:21,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:21,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:01:21,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:01:21,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:01:21,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:21" (1/1) ... [2019-10-22 09:01:21,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:21" (1/1) ... [2019-10-22 09:01:21,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:21" (1/1) ... [2019-10-22 09:01:21,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:21" (1/1) ... [2019-10-22 09:01:21,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:21" (1/1) ... [2019-10-22 09:01:21,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:21" (1/1) ... [2019-10-22 09:01:21,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:21" (1/1) ... [2019-10-22 09:01:21,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:01:21,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:01:21,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:01:21,693 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:01:21,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9a1e84b9-6741-4485-8ff9-947022d536ec/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 09:01:21,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 09:01:21,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:01:21,750 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-10-22 09:01:21,750 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 09:01:21,751 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-10-22 09:01:21,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:01:21,752 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 09:01:21,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:01:21,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:01:21,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:01:21,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 09:01:21,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:01:22,036 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:01:22,036 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-22 09:01:22,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:22 BoogieIcfgContainer [2019-10-22 09:01:22,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:01:22,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:01:22,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:01:22,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:01:22,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:01:21" (1/3) ... [2019-10-22 09:01:22,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@493be9e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:22, skipping insertion in model container [2019-10-22 09:01:22,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:21" (2/3) ... [2019-10-22 09:01:22,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@493be9e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:22, skipping insertion in model container [2019-10-22 09:01:22,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:22" (3/3) ... [2019-10-22 09:01:22,044 INFO L109 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength_-read.c [2019-10-22 09:01:22,053 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:01:22,059 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-10-22 09:01:22,069 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-10-22 09:01:22,086 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:01:22,086 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 09:01:22,086 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:01:22,087 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:01:22,087 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:01:22,087 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:01:22,087 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:01:22,087 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:01:22,101 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2019-10-22 09:01:22,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 09:01:22,110 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:22,111 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:22,112 INFO L410 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 09:01:22,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:22,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1189570050, now seen corresponding path program 1 times [2019-10-22 09:01:22,125 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:22,126 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742558816] [2019-10-22 09:01:22,126 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:22,126 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:22,126 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:22,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:22,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:22,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:22,311 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742558816] [2019-10-22 09:01:22,312 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:22,312 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:01:22,312 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388687173] [2019-10-22 09:01:22,317 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:01:22,318 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:22,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:01:22,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:01:22,333 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 4 states. [2019-10-22 09:01:22,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:22,526 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2019-10-22 09:01:22,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:01:22,528 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-10-22 09:01:22,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:22,548 INFO L225 Difference]: With dead ends: 46 [2019-10-22 09:01:22,548 INFO L226 Difference]: Without dead ends: 43 [2019-10-22 09:01:22,550 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:01:22,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-10-22 09:01:22,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 36. [2019-10-22 09:01:22,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-10-22 09:01:22,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2019-10-22 09:01:22,603 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 10 [2019-10-22 09:01:22,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:22,604 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2019-10-22 09:01:22,604 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:01:22,604 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2019-10-22 09:01:22,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 09:01:22,604 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:22,605 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:22,605 INFO L410 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONARRAY_INDEX, fooErr2REQUIRES_VIOLATION, fooErr1REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK]=== [2019-10-22 09:01:22,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:22,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1775375512, now seen corresponding path program 1 times [2019-10-22 09:01:22,606 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:22,606 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708417150] [2019-10-22 09:01:22,606 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:22,606 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:22,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:22,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:22,657 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:22,658 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:01:22,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:01:22 BoogieIcfgContainer [2019-10-22 09:01:22,679 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:01:22,679 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:01:22,679 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:01:22,680 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:01:22,680 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:22" (3/4) ... [2019-10-22 09:01:22,682 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 09:01:22,720 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9a1e84b9-6741-4485-8ff9-947022d536ec/bin/uautomizer/witness.graphml [2019-10-22 09:01:22,721 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:01:22,723 INFO L168 Benchmark]: Toolchain (without parser) took 1375.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -124.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:22,723 INFO L168 Benchmark]: CDTParser took 0.34 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 09:01:22,724 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -192.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:22,724 INFO L168 Benchmark]: Boogie Preprocessor took 41.71 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:22,725 INFO L168 Benchmark]: RCFGBuilder took 344.48 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: 23.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:22,725 INFO L168 Benchmark]: TraceAbstraction took 640.84 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: 41.0 MB). Peak memory consumption was 41.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:22,726 INFO L168 Benchmark]: Witness Printer took 41.47 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 09:01:22,730 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 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 303.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -192.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.71 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 344.48 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: 23.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 640.84 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: 41.0 MB). Peak memory consumption was 41.0 MB. Max. memory is 11.5 GB. * Witness Printer took 41.47 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: 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 VAL [b={1:0}, i=0] [L22] COND TRUE i < 100 VAL [b={1:0}, i=0] [L23] CALL foo(i, b, i) VAL [\old(n)=0, \old(size)=0, b={1:0}] [L13] int a[n], i; [L14] i = 0 VAL [\old(n)=0, \old(size)=0, b={1:0}, b={1:0}, i=0, n=0, size=0] [L14] COND TRUE i < size + 1 VAL [\old(n)=0, \old(size)=0, b={1:0}, b={1:0}, i=0, n=0, size=0] [L15] a[i] VAL [\old(n)=0, \old(size)=0, b={1:0}, b={1:0}, i=0, n=0, size=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 39 locations, 8 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 27 SDslu, 14 SDs, 0 SdLazy, 53 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 180 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...