./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_6e66b429-7ae9-47db-8af6-e2655863421c/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6e66b429-7ae9-47db-8af6-e2655863421c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6e66b429-7ae9-47db-8af6-e2655863421c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6e66b429-7ae9-47db-8af6-e2655863421c/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6e66b429-7ae9-47db-8af6-e2655863421c/bin/utaipan/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6e66b429-7ae9-47db-8af6-e2655863421c/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 072df04afae5ae28487e0b8208c52f13961dea34 .................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:56:02,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:56:02,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:56:02,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:56:02,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:56:02,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:56:02,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:56:02,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:56:02,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:56:02,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:56:02,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:56:02,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:56:02,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:56:02,588 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:56:02,590 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:56:02,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:56:02,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:56:02,594 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:56:02,596 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:56:02,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:56:02,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:56:02,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:56:02,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:56:02,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:56:02,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:56:02,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:56:02,610 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:56:02,611 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:56:02,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:56:02,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:56:02,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:56:02,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:56:02,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:56:02,616 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:56:02,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:56:02,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:56:02,619 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:56:02,620 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:56:02,620 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:56:02,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:56:02,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:56:02,623 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6e66b429-7ae9-47db-8af6-e2655863421c/bin/utaipan/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2020-11-22 12:56:02,647 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:56:02,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:56:02,648 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:56:02,648 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:56:02,648 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:56:02,649 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:56:02,649 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:56:02,649 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:56:02,649 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:56:02,650 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:56:02,650 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:56:02,650 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:56:02,650 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:56:02,650 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:56:02,651 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:56:02,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-22 12:56:02,652 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-22 12:56:02,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:56:02,652 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-22 12:56:02,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:56:02,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:56:02,653 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-22 12:56:02,653 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-22 12:56:02,653 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-22 12:56:02,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:56:02,654 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:56:02,654 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:56:02,654 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:56:02,655 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:56:02,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:56:02,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:56:02,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:56:02,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:56:02,656 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:56:02,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:56:02,656 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:56:02,656 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:56:02,657 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_6e66b429-7ae9-47db-8af6-e2655863421c/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6e66b429-7ae9-47db-8af6-e2655863421c/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 072df04afae5ae28487e0b8208c52f13961dea34 [2020-11-22 12:56:02,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:56:02,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:56:02,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:56:02,926 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:56:02,926 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:56:02,931 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6e66b429-7ae9-47db-8af6-e2655863421c/bin/utaipan/../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2020-11-22 12:56:03,008 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6e66b429-7ae9-47db-8af6-e2655863421c/bin/utaipan/data/bb132865e/8d14ce384cf743b98facb576229428de/FLAG3fe6fc8fa [2020-11-22 12:56:03,448 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:56:03,449 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6e66b429-7ae9-47db-8af6-e2655863421c/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2020-11-22 12:56:03,456 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6e66b429-7ae9-47db-8af6-e2655863421c/bin/utaipan/data/bb132865e/8d14ce384cf743b98facb576229428de/FLAG3fe6fc8fa [2020-11-22 12:56:03,883 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6e66b429-7ae9-47db-8af6-e2655863421c/bin/utaipan/data/bb132865e/8d14ce384cf743b98facb576229428de [2020-11-22 12:56:03,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:56:03,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:56:03,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:56:03,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:56:03,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:56:03,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:56:03" (1/1) ... [2020-11-22 12:56:03,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12d9bc6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:03, skipping insertion in model container [2020-11-22 12:56:03,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:56:03" (1/1) ... [2020-11-22 12:56:03,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:56:03,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:56:04,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:56:04,033 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:56:04,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:56:04,083 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:56:04,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:04 WrapperNode [2020-11-22 12:56:04,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:56:04,087 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:56:04,088 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:56:04,088 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:56:04,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:04" (1/1) ... [2020-11-22 12:56:04,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:04" (1/1) ... [2020-11-22 12:56:04,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:56:04,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:56:04,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:56:04,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:56:04,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:04" (1/1) ... [2020-11-22 12:56:04,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:04" (1/1) ... [2020-11-22 12:56:04,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:04" (1/1) ... [2020-11-22 12:56:04,153 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:04" (1/1) ... [2020-11-22 12:56:04,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:04" (1/1) ... [2020-11-22 12:56:04,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:04" (1/1) ... [2020-11-22 12:56:04,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:04" (1/1) ... [2020-11-22 12:56:04,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:56:04,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:56:04,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:56:04,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:56:04,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6e66b429-7ae9-47db-8af6-e2655863421c/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:56:04,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-22 12:56:04,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:56:04,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:56:04,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-22 12:56:04,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:56:04,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 12:56:04,594 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:56:04,594 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-22 12:56:04,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:04 BoogieIcfgContainer [2020-11-22 12:56:04,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:56:04,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:56:04,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:56:04,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:56:04,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:56:03" (1/3) ... [2020-11-22 12:56:04,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dbed98c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:56:04, skipping insertion in model container [2020-11-22 12:56:04,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:04" (2/3) ... [2020-11-22 12:56:04,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dbed98c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:56:04, skipping insertion in model container [2020-11-22 12:56:04,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:04" (3/3) ... [2020-11-22 12:56:04,606 INFO L111 eAbstractionObserver]: Analyzing ICFG Arrays02-EquivalentConstantIndices.c [2020-11-22 12:56:04,615 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:56:04,619 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2020-11-22 12:56:04,631 INFO L253 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2020-11-22 12:56:04,653 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:56:04,653 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-22 12:56:04,653 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:56:04,653 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:56:04,653 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:56:04,653 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:56:04,653 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:56:04,653 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:56:04,664 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-11-22 12:56:04,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-11-22 12:56:04,669 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:04,670 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2020-11-22 12:56:04,670 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-11-22 12:56:04,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:04,676 INFO L82 PathProgramCache]: Analyzing trace with hash 2143, now seen corresponding path program 1 times [2020-11-22 12:56:04,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:56:04,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289777304] [2020-11-22 12:56:04,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:56:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:04,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:04,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289777304] [2020-11-22 12:56:04,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:04,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-22 12:56:04,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292284535] [2020-11-22 12:56:04,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:56:04,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:56:04,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:56:04,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:56:04,896 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2020-11-22 12:56:04,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:04,991 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2020-11-22 12:56:04,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:56:04,994 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2020-11-22 12:56:04,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:05,002 INFO L225 Difference]: With dead ends: 16 [2020-11-22 12:56:05,003 INFO L226 Difference]: Without dead ends: 15 [2020-11-22 12:56:05,006 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:56:05,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-11-22 12:56:05,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-11-22 12:56:05,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-22 12:56:05,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-11-22 12:56:05,041 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 2 [2020-11-22 12:56:05,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:05,042 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-11-22 12:56:05,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:56:05,043 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-11-22 12:56:05,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-11-22 12:56:05,043 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:05,043 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2020-11-22 12:56:05,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 12:56:05,044 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-11-22 12:56:05,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:05,049 INFO L82 PathProgramCache]: Analyzing trace with hash 2144, now seen corresponding path program 1 times [2020-11-22 12:56:05,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:56:05,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971540794] [2020-11-22 12:56:05,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:56:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:05,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:05,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971540794] [2020-11-22 12:56:05,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:05,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-22 12:56:05,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960439459] [2020-11-22 12:56:05,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:56:05,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:56:05,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:56:05,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:56:05,101 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 3 states. [2020-11-22 12:56:05,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:05,149 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2020-11-22 12:56:05,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:56:05,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2020-11-22 12:56:05,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:05,151 INFO L225 Difference]: With dead ends: 10 [2020-11-22 12:56:05,151 INFO L226 Difference]: Without dead ends: 10 [2020-11-22 12:56:05,152 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:56:05,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-11-22 12:56:05,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-11-22 12:56:05,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-22 12:56:05,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-11-22 12:56:05,154 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 2 [2020-11-22 12:56:05,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:05,154 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-11-22 12:56:05,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:56:05,154 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-11-22 12:56:05,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-22 12:56:05,155 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:05,155 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-22 12:56:05,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 12:56:05,156 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-11-22 12:56:05,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:05,157 INFO L82 PathProgramCache]: Analyzing trace with hash 2011772873, now seen corresponding path program 1 times [2020-11-22 12:56:05,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:56:05,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830012167] [2020-11-22 12:56:05,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:56:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:05,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:05,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830012167] [2020-11-22 12:56:05,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:05,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 12:56:05,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467968628] [2020-11-22 12:56:05,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:56:05,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:56:05,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:56:05,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:56:05,213 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 4 states. [2020-11-22 12:56:05,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:05,238 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2020-11-22 12:56:05,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 12:56:05,239 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-11-22 12:56:05,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:05,239 INFO L225 Difference]: With dead ends: 9 [2020-11-22 12:56:05,239 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 12:56:05,240 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:56:05,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 12:56:05,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 12:56:05,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 12:56:05,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 12:56:05,241 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2020-11-22 12:56:05,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:05,241 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 12:56:05,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:56:05,241 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 12:56:05,241 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 12:56:05,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-22 12:56:05,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:56:05 BoogieIcfgContainer [2020-11-22 12:56:05,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:56:05,247 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:56:05,247 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:56:05,247 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:56:05,247 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:04" (3/4) ... [2020-11-22 12:56:05,251 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 12:56:05,260 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-11-22 12:56:05,261 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-22 12:56:05,261 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-22 12:56:05,292 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6e66b429-7ae9-47db-8af6-e2655863421c/bin/utaipan/witness.graphml [2020-11-22 12:56:05,293 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:56:05,295 INFO L168 Benchmark]: Toolchain (without parser) took 1406.14 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 65.5 MB in the beginning and 70.2 MB in the end (delta: -4.7 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:05,295 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 94.4 MB. Free memory is still 53.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:56:05,296 INFO L168 Benchmark]: CACSL2BoogieTranslator took 195.71 ms. Allocated memory is still 94.4 MB. Free memory was 65.3 MB in the beginning and 72.0 MB in the end (delta: -6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:05,296 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.05 ms. Allocated memory is still 94.4 MB. Free memory was 72.0 MB in the beginning and 70.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:56:05,297 INFO L168 Benchmark]: Boogie Preprocessor took 46.14 ms. Allocated memory is still 94.4 MB. Free memory was 70.6 MB in the beginning and 69.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:05,298 INFO L168 Benchmark]: RCFGBuilder took 421.59 ms. Allocated memory is still 94.4 MB. Free memory was 69.6 MB in the beginning and 54.2 MB in the end (delta: 15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:05,298 INFO L168 Benchmark]: TraceAbstraction took 648.50 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 53.6 MB in the beginning and 72.6 MB in the end (delta: -19.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:05,299 INFO L168 Benchmark]: Witness Printer took 46.30 ms. Allocated memory is still 117.4 MB. Free memory was 72.6 MB in the beginning and 70.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:05,302 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 ms. Allocated memory is still 94.4 MB. Free memory is still 53.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 195.71 ms. Allocated memory is still 94.4 MB. Free memory was 65.3 MB in the beginning and 72.0 MB in the end (delta: -6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.05 ms. Allocated memory is still 94.4 MB. Free memory was 72.0 MB in the beginning and 70.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.14 ms. Allocated memory is still 94.4 MB. Free memory was 70.6 MB in the beginning and 69.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 421.59 ms. Allocated memory is still 94.4 MB. Free memory was 69.6 MB in the beginning and 54.2 MB in the end (delta: 15.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 648.50 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 53.6 MB in the beginning and 72.6 MB in the end (delta: -19.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. * Witness Printer took 46.30 ms. Allocated memory is still 117.4 MB. Free memory was 72.6 MB in the beginning and 70.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 11]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 8]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 11]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 13]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 15]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 13]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 11 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 23 SDslu, 3 SDs, 0 SdLazy, 34 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 149 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...