./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0158-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI --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 32bit --witnessprinter.graph.data.programhash c3baf3e1382b3477cfa26255004191fb506be280 ....................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI --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 32bit --witnessprinter.graph.data.programhash c3baf3e1382b3477cfa26255004191fb506be280 .................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:26:57,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:26:57,382 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:26:57,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:26:57,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:26:57,453 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:26:57,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:26:57,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:26:57,463 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:26:57,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:26:57,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:26:57,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:26:57,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:26:57,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:26:57,479 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:26:57,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:26:57,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:26:57,487 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:26:57,489 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:26:57,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:26:57,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:26:57,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:26:57,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:26:57,507 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:26:57,511 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:26:57,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:26:57,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:26:57,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:26:57,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:26:57,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:26:57,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:26:57,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:26:57,519 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:26:57,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:26:57,522 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:26:57,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:26:57,523 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:26:57,523 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:26:57,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:26:57,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:26:57,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:26:57,527 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-11 02:26:57,571 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:26:57,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:26:57,572 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:26:57,573 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:26:57,573 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:26:57,573 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:26:57,573 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:26:57,574 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:26:57,574 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:26:57,574 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:26:57,575 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:26:57,575 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:26:57,576 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:26:57,576 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:26:57,576 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:26:57,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 02:26:57,577 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 02:26:57,577 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:26:57,578 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:26:57,578 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:26:57,578 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:26:57,578 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:26:57,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:26:57,579 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 02:26:57,579 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 02:26:57,579 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-11 02:26:57,581 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:26:57,581 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:26:57,581 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:26:57,582 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:26:57,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:26:57,582 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:26:57,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:26:57,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:26:57,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:26:57,583 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:26:57,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:26:57,584 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:26:57,584 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:26:57,584 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_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3baf3e1382b3477cfa26255004191fb506be280 [2021-10-11 02:26:57,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:26:57,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:26:57,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:26:57,955 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:26:57,956 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:26:57,957 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/memsafety/test-0158-2.i [2021-10-11 02:26:58,053 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/data/d67de7db5/13f249bdc2564f69afba3fb77e4412b3/FLAG63a73a1d5 [2021-10-11 02:26:58,681 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:26:58,688 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/sv-benchmarks/c/memsafety/test-0158-2.i [2021-10-11 02:26:58,709 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/data/d67de7db5/13f249bdc2564f69afba3fb77e4412b3/FLAG63a73a1d5 [2021-10-11 02:26:58,952 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/data/d67de7db5/13f249bdc2564f69afba3fb77e4412b3 [2021-10-11 02:26:58,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:26:58,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:26:58,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:58,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:26:58,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:26:58,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:58" (1/1) ... [2021-10-11 02:26:58,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@395b159f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:58, skipping insertion in model container [2021-10-11 02:26:58,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:58" (1/1) ... [2021-10-11 02:26:58,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:26:59,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:26:59,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:59,388 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:26:59,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:59,498 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:26:59,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:59 WrapperNode [2021-10-11 02:26:59,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:59,500 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:59,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:26:59,501 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:26:59,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:59" (1/1) ... [2021-10-11 02:26:59,535 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:59" (1/1) ... [2021-10-11 02:26:59,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:59,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:26:59,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:26:59,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:26:59,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:59" (1/1) ... [2021-10-11 02:26:59,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:59" (1/1) ... [2021-10-11 02:26:59,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:59" (1/1) ... [2021-10-11 02:26:59,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:59" (1/1) ... [2021-10-11 02:26:59,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:59" (1/1) ... [2021-10-11 02:26:59,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:59" (1/1) ... [2021-10-11 02:26:59,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:59" (1/1) ... [2021-10-11 02:26:59,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:26:59,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:26:59,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:26:59,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:26:59,609 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:59" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:26:59,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:26:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 02:26:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-11 02:26:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:26:59,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:26:59,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:26:59,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:26:59,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:27:00,186 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:27:00,186 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-11 02:27:00,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:00 BoogieIcfgContainer [2021-10-11 02:27:00,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:27:00,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:27:00,190 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:27:00,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:27:00,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:26:58" (1/3) ... [2021-10-11 02:27:00,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c926640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:00, skipping insertion in model container [2021-10-11 02:27:00,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:59" (2/3) ... [2021-10-11 02:27:00,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c926640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:00, skipping insertion in model container [2021-10-11 02:27:00,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:00" (3/3) ... [2021-10-11 02:27:00,198 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158-2.i [2021-10-11 02:27:00,212 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:27:00,215 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2021-10-11 02:27:00,226 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-11 02:27:00,259 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:27:00,260 INFO L378 AbstractCegarLoop]: Hoare is false [2021-10-11 02:27:00,260 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:27:00,260 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:27:00,260 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:27:00,260 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:27:00,261 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:27:00,261 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:27:00,275 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2021-10-11 02:27:00,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-11 02:27:00,282 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:00,282 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2021-10-11 02:27:00,283 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-10-11 02:27:00,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:00,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1492, now seen corresponding path program 1 times [2021-10-11 02:27:00,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:00,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95433600] [2021-10-11 02:27:00,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:00,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:27:00,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95433600] [2021-10-11 02:27:00,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:00,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:27:00,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284153464] [2021-10-11 02:27:00,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:27:00,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:27:00,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:27:00,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:27:00,552 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2021-10-11 02:27:00,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:00,628 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2021-10-11 02:27:00,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:27:00,631 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2021-10-11 02:27:00,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:00,642 INFO L225 Difference]: With dead ends: 10 [2021-10-11 02:27:00,642 INFO L226 Difference]: Without dead ends: 9 [2021-10-11 02:27:00,646 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 [2021-10-11 02:27:00,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-11 02:27:00,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-11 02:27:00,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-11 02:27:00,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2021-10-11 02:27:00,690 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 2 [2021-10-11 02:27:00,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:00,691 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2021-10-11 02:27:00,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:27:00,691 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2021-10-11 02:27:00,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-11 02:27:00,692 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:00,692 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2021-10-11 02:27:00,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:27:00,692 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-10-11 02:27:00,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:00,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1493, now seen corresponding path program 1 times [2021-10-11 02:27:00,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:00,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563986446] [2021-10-11 02:27:00,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:00,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:27:00,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563986446] [2021-10-11 02:27:00,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:00,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:27:00,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351915995] [2021-10-11 02:27:00,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:27:00,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:27:00,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:27:00,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:27:00,801 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand 3 states. [2021-10-11 02:27:00,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:00,824 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2021-10-11 02:27:00,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:27:00,825 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2021-10-11 02:27:00,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:00,826 INFO L225 Difference]: With dead ends: 6 [2021-10-11 02:27:00,826 INFO L226 Difference]: Without dead ends: 6 [2021-10-11 02:27:00,827 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 [2021-10-11 02:27:00,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2021-10-11 02:27:00,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2021-10-11 02:27:00,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-11 02:27:00,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2021-10-11 02:27:00,829 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 2 [2021-10-11 02:27:00,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:00,830 INFO L481 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2021-10-11 02:27:00,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:27:00,830 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2021-10-11 02:27:00,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:27:00,831 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:00,831 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:27:00,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:27:00,831 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-10-11 02:27:00,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:00,834 INFO L82 PathProgramCache]: Analyzing trace with hash 44424719, now seen corresponding path program 1 times [2021-10-11 02:27:00,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:00,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451460718] [2021-10-11 02:27:00,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:27:00,872 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:27:00,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:27:00,896 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:27:00,917 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:27:00,917 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:27:00,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:27:00,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:27:00 BoogieIcfgContainer [2021-10-11 02:27:00,937 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:27:00,937 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:27:00,937 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:27:00,938 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:27:00,938 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:00" (3/4) ... [2021-10-11 02:27:00,941 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:27:00,942 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:27:00,944 INFO L168 Benchmark]: Toolchain (without parser) took 1985.79 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 53.9 MB in the beginning and 61.2 MB in the end (delta: -7.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:00,944 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 88.1 MB. Free memory was 45.1 MB in the beginning and 45.1 MB in the end (delta: 38.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:00,945 INFO L168 Benchmark]: CACSL2BoogieTranslator took 541.42 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 53.8 MB in the beginning and 80.1 MB in the end (delta: -26.3 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:00,946 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.77 ms. Allocated memory is still 115.3 MB. Free memory was 80.1 MB in the beginning and 78.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:00,946 INFO L168 Benchmark]: Boogie Preprocessor took 47.95 ms. Allocated memory is still 115.3 MB. Free memory was 78.3 MB in the beginning and 77.4 MB in the end (delta: 967.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:00,947 INFO L168 Benchmark]: RCFGBuilder took 584.10 ms. Allocated memory is still 115.3 MB. Free memory was 77.0 MB in the beginning and 91.4 MB in the end (delta: -14.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:00,948 INFO L168 Benchmark]: TraceAbstraction took 746.48 ms. Allocated memory is still 115.3 MB. Free memory was 90.9 MB in the beginning and 61.7 MB in the end (delta: 29.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:00,948 INFO L168 Benchmark]: Witness Printer took 4.61 ms. Allocated memory is still 115.3 MB. Free memory is still 61.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:00,952 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 88.1 MB. Free memory was 45.1 MB in the beginning and 45.1 MB in the end (delta: 38.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 541.42 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 53.8 MB in the beginning and 80.1 MB in the end (delta: -26.3 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.77 ms. Allocated memory is still 115.3 MB. Free memory was 80.1 MB in the beginning and 78.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.95 ms. Allocated memory is still 115.3 MB. Free memory was 78.3 MB in the beginning and 77.4 MB in the end (delta: 967.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 584.10 ms. Allocated memory is still 115.3 MB. Free memory was 77.0 MB in the beginning and 91.4 MB in the end (delta: -14.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 746.48 ms. Allocated memory is still 115.3 MB. Free memory was 90.9 MB in the beginning and 61.7 MB in the end (delta: 29.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.61 ms. Allocated memory is still 115.3 MB. Free memory is still 61.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 523]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 523. Possible FailurePath: [L525-L532] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L533] data.p0 = malloc(37U) [L534] data.str.p2 = &data [L535] data.str.c[1] = sizeof data.str.p1 [L536] return 0; [L536] return 0; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 7 SDslu, 1 SDs, 0 SdLazy, 13 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:27:03,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:27:03,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:27:03,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:27:03,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:27:03,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:27:03,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:27:03,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:27:03,643 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:27:03,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:27:03,652 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:27:03,654 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:27:03,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:27:03,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:27:03,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:27:03,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:27:03,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:27:03,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:27:03,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:27:03,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:27:03,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:27:03,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:27:03,690 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:27:03,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:27:03,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:27:03,704 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:27:03,704 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:27:03,705 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:27:03,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:27:03,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:27:03,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:27:03,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:27:03,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:27:03,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:27:03,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:27:03,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:27:03,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:27:03,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:27:03,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:27:03,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:27:03,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:27:03,720 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-11 02:27:03,759 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:27:03,759 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:27:03,760 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:27:03,761 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:27:03,761 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:27:03,761 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:27:03,761 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:27:03,762 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:27:03,762 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:27:03,763 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 02:27:03,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 02:27:03,763 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:27:03,763 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:27:03,764 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:27:03,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:27:03,764 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:27:03,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:27:03,765 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 02:27:03,765 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 02:27:03,765 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-11 02:27:03,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:27:03,765 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:27:03,766 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:27:03,766 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:27:03,766 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:27:03,766 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:27:03,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:27:03,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:27:03,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:27:03,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:27:03,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:27:03,768 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:27:03,768 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:27:03,768 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:27:03,769 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:27:03,769 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:27:03,769 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3baf3e1382b3477cfa26255004191fb506be280 [2021-10-11 02:27:04,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:27:04,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:27:04,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:27:04,162 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:27:04,163 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:27:04,164 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/memsafety/test-0158-2.i [2021-10-11 02:27:04,245 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/data/7c1184f82/1b0e337c36bb422a89656ba570e3456f/FLAG249f027bb [2021-10-11 02:27:04,906 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:27:04,906 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/sv-benchmarks/c/memsafety/test-0158-2.i [2021-10-11 02:27:04,926 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/data/7c1184f82/1b0e337c36bb422a89656ba570e3456f/FLAG249f027bb [2021-10-11 02:27:05,143 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/data/7c1184f82/1b0e337c36bb422a89656ba570e3456f [2021-10-11 02:27:05,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:27:05,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:27:05,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:05,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:27:05,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:27:05,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:05" (1/1) ... [2021-10-11 02:27:05,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9b5c784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:05, skipping insertion in model container [2021-10-11 02:27:05,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:05" (1/1) ... [2021-10-11 02:27:05,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:27:05,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:27:05,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:05,614 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:27:05,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:05,748 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:27:05,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:05 WrapperNode [2021-10-11 02:27:05,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:05,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:05,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:27:05,751 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:27:05,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:05" (1/1) ... [2021-10-11 02:27:05,794 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:05" (1/1) ... [2021-10-11 02:27:05,825 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:05,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:27:05,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:27:05,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:27:05,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:05" (1/1) ... [2021-10-11 02:27:05,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:05" (1/1) ... [2021-10-11 02:27:05,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:05" (1/1) ... [2021-10-11 02:27:05,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:05" (1/1) ... [2021-10-11 02:27:05,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:05" (1/1) ... [2021-10-11 02:27:05,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:05" (1/1) ... [2021-10-11 02:27:05,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:05" (1/1) ... [2021-10-11 02:27:05,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:27:05,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:27:05,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:27:05,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:27:05,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:05" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:27:05,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 02:27:05,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-11 02:27:05,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:27:05,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-11 02:27:05,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:27:05,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:27:05,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:27:05,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:27:06,416 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:27:06,416 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-11 02:27:06,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:06 BoogieIcfgContainer [2021-10-11 02:27:06,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:27:06,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:27:06,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:27:06,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:27:06,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:27:05" (1/3) ... [2021-10-11 02:27:06,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@458531b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:06, skipping insertion in model container [2021-10-11 02:27:06,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:05" (2/3) ... [2021-10-11 02:27:06,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@458531b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:06, skipping insertion in model container [2021-10-11 02:27:06,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:06" (3/3) ... [2021-10-11 02:27:06,436 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158-2.i [2021-10-11 02:27:06,451 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:27:06,455 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2021-10-11 02:27:06,467 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-11 02:27:06,500 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:27:06,500 INFO L378 AbstractCegarLoop]: Hoare is false [2021-10-11 02:27:06,501 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:27:06,501 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:27:06,501 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:27:06,501 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:27:06,501 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:27:06,502 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:27:06,516 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2021-10-11 02:27:06,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 02:27:06,523 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:06,524 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 02:27:06,524 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-10-11 02:27:06,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:06,536 INFO L82 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2021-10-11 02:27:06,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:27:06,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2051666275] [2021-10-11 02:27:06,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 02:27:06,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:06,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:27:06,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:27:06,855 INFO L348 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-11 02:27:06,856 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2021-10-11 02:27:06,866 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:27:06,875 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:27:06,885 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-10-11 02:27:06,885 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:13 [2021-10-11 02:27:06,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:27:06,909 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:27:06,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2051666275] [2021-10-11 02:27:06,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:06,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:27:06,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038749648] [2021-10-11 02:27:06,920 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:27:06,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:27:06,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:27:06,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:27:06,940 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2021-10-11 02:27:07,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:07,021 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-10-11 02:27:07,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:27:07,023 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-10-11 02:27:07,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:07,031 INFO L225 Difference]: With dead ends: 13 [2021-10-11 02:27:07,031 INFO L226 Difference]: Without dead ends: 11 [2021-10-11 02:27:07,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:27:07,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-11 02:27:07,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-11 02:27:07,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-11 02:27:07,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2021-10-11 02:27:07,062 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 3 [2021-10-11 02:27:07,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:07,062 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2021-10-11 02:27:07,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:27:07,063 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2021-10-11 02:27:07,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 02:27:07,063 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:07,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 02:27:07,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:27:07,278 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-10-11 02:27:07,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:07,279 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-10-11 02:27:07,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:27:07,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1040016517] [2021-10-11 02:27:07,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 02:27:07,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:07,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:27:07,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:27:07,410 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_13|], 1=[|v_#valid_19|]} [2021-10-11 02:27:07,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 02:27:07,418 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-10-11 02:27:07,420 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:27:07,433 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:27:07,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 02:27:07,442 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-10-11 02:27:07,444 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 02:27:07,455 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:27:07,457 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-10-11 02:27:07,458 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:14 [2021-10-11 02:27:07,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:27:07,492 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:27:07,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1040016517] [2021-10-11 02:27:07,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:07,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:27:07,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53681764] [2021-10-11 02:27:07,494 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:27:07,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:27:07,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:27:07,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:27:07,495 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 3 states. [2021-10-11 02:27:07,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:07,553 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2021-10-11 02:27:07,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:27:07,553 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-10-11 02:27:07,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:07,554 INFO L225 Difference]: With dead ends: 8 [2021-10-11 02:27:07,554 INFO L226 Difference]: Without dead ends: 8 [2021-10-11 02:27:07,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:27:07,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-10-11 02:27:07,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-10-11 02:27:07,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-11 02:27:07,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2021-10-11 02:27:07,557 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 3 [2021-10-11 02:27:07,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:07,557 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2021-10-11 02:27:07,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:27:07,558 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2021-10-11 02:27:07,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:27:07,558 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:07,558 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:07,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:27:07,768 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-10-11 02:27:07,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:07,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1803026981, now seen corresponding path program 1 times [2021-10-11 02:27:07,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:27:07,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153527606] [2021-10-11 02:27:07,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf546a2f-6c37-4b9a-885e-78369120fe91/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 02:27:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:27:07,873 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:27:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:27:07,950 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:27:07,984 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:27:07,987 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:27:08,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:27:08,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:27:08 BoogieIcfgContainer [2021-10-11 02:27:08,202 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:27:08,203 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:27:08,203 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:27:08,204 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:27:08,204 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:06" (3/4) ... [2021-10-11 02:27:08,219 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:27:08,219 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:27:08,221 INFO L168 Benchmark]: Toolchain (without parser) took 3072.00 ms. Allocated memory was 67.1 MB in the beginning and 94.4 MB in the end (delta: 27.3 MB). Free memory was 48.0 MB in the beginning and 40.1 MB in the end (delta: 7.9 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:08,222 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 67.1 MB. Free memory was 48.8 MB in the beginning and 48.7 MB in the end (delta: 55.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:08,223 INFO L168 Benchmark]: CACSL2BoogieTranslator took 600.64 ms. Allocated memory is still 67.1 MB. Free memory was 47.9 MB in the beginning and 37.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:08,224 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.90 ms. Allocated memory is still 67.1 MB. Free memory was 37.8 MB in the beginning and 35.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:08,227 INFO L168 Benchmark]: Boogie Preprocessor took 49.47 ms. Allocated memory is still 67.1 MB. Free memory was 35.9 MB in the beginning and 34.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:08,234 INFO L168 Benchmark]: RCFGBuilder took 541.01 ms. Allocated memory was 67.1 MB in the beginning and 94.4 MB in the end (delta: 27.3 MB). Free memory was 34.6 MB in the beginning and 67.8 MB in the end (delta: -33.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:08,235 INFO L168 Benchmark]: TraceAbstraction took 1783.18 ms. Allocated memory is still 94.4 MB. Free memory was 67.4 MB in the beginning and 40.1 MB in the end (delta: 27.2 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:08,235 INFO L168 Benchmark]: Witness Printer took 16.00 ms. Allocated memory is still 94.4 MB. Free memory is still 40.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:08,245 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 67.1 MB. Free memory was 48.8 MB in the beginning and 48.7 MB in the end (delta: 55.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 600.64 ms. Allocated memory is still 67.1 MB. Free memory was 47.9 MB in the beginning and 37.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.90 ms. Allocated memory is still 67.1 MB. Free memory was 37.8 MB in the beginning and 35.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.47 ms. Allocated memory is still 67.1 MB. Free memory was 35.9 MB in the beginning and 34.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 541.01 ms. Allocated memory was 67.1 MB in the beginning and 94.4 MB in the end (delta: 27.3 MB). Free memory was 34.6 MB in the beginning and 67.8 MB in the end (delta: -33.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1783.18 ms. Allocated memory is still 94.4 MB. Free memory was 67.4 MB in the beginning and 40.1 MB in the end (delta: 27.2 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. * Witness Printer took 16.00 ms. Allocated memory is still 94.4 MB. Free memory is still 40.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 523]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 523. Possible FailurePath: [L525-L532] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L533] data.p0 = malloc(37U) [L534] data.str.p2 = &data [L535] data.str.c[1] = sizeof data.str.p1 [L536] return 0; [L536] return 0; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 9 SDslu, 2 SDs, 0 SdLazy, 17 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 4 ConstructedInterpolants, 1 QuantifiedInterpolants, 44 SizeOfPredicates, 2 NumberOfNonLiveVariables, 60 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...