./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-regression/nested_structure_noptr-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d948d7-127c-419d-8600-9d86fdd13026/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d948d7-127c-419d-8600-9d86fdd13026/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d948d7-127c-419d-8600-9d86fdd13026/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d948d7-127c-419d-8600-9d86fdd13026/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-regression/nested_structure_noptr-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d948d7-127c-419d-8600-9d86fdd13026/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d948d7-127c-419d-8600-9d86fdd13026/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 552504b8dd67a1f0b5535e7605bdb089a6d97e479e395554cfd041029e9dab91 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 17:01:55,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:01:55,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:01:55,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:01:55,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:01:55,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:01:55,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:01:55,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:01:55,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:01:55,637 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:01:55,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:01:55,639 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:01:55,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:01:55,640 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:01:55,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:01:55,642 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:01:55,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:01:55,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:01:55,646 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:01:55,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:01:55,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:01:55,650 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:01:55,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:01:55,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:01:55,656 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:01:55,656 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:01:55,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:01:55,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:01:55,658 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:01:55,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:01:55,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:01:55,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:01:55,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:01:55,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:01:55,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:01:55,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:01:55,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:01:55,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:01:55,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:01:55,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:01:55,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:01:55,666 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d948d7-127c-419d-8600-9d86fdd13026/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 17:01:55,688 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:01:55,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:01:55,689 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:01:55,689 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:01:55,689 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:01:55,690 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:01:55,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:01:55,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:01:55,691 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:01:55,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:01:55,691 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:01:55,691 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:01:55,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:01:55,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:01:55,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:01:55,692 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 17:01:55,692 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 17:01:55,692 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 17:01:55,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:01:55,693 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 17:01:55,693 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:01:55,693 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:01:55,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:01:55,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:01:55,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:01:55,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:01:55,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:01:55,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:01:55,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:01:55,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:01:55,695 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:01:55,695 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:01:55,695 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:01:55,696 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:01:55,696 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_48d948d7-127c-419d-8600-9d86fdd13026/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d948d7-127c-419d-8600-9d86fdd13026/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 552504b8dd67a1f0b5535e7605bdb089a6d97e479e395554cfd041029e9dab91 [2022-12-13 17:01:55,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:01:55,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:01:55,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:01:55,906 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:01:55,906 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:01:55,907 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d948d7-127c-419d-8600-9d86fdd13026/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-regression/nested_structure_noptr-2.i [2022-12-13 17:01:58,569 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:01:58,688 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:01:58,689 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d948d7-127c-419d-8600-9d86fdd13026/sv-benchmarks/c/ldv-regression/nested_structure_noptr-2.i [2022-12-13 17:01:58,692 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d948d7-127c-419d-8600-9d86fdd13026/bin/uautomizer-uyxdKDjOR8/data/fd2ab8b39/b2d88fb432d54b6d8a457134d3ac9247/FLAG317b010c5 [2022-12-13 17:01:58,702 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d948d7-127c-419d-8600-9d86fdd13026/bin/uautomizer-uyxdKDjOR8/data/fd2ab8b39/b2d88fb432d54b6d8a457134d3ac9247 [2022-12-13 17:01:58,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:01:58,705 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:01:58,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:01:58,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:01:58,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:01:58,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:01:58" (1/1) ... [2022-12-13 17:01:58,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ecc6867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:58, skipping insertion in model container [2022-12-13 17:01:58,710 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:01:58" (1/1) ... [2022-12-13 17:01:58,717 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:01:58,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:01:58,823 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d948d7-127c-419d-8600-9d86fdd13026/sv-benchmarks/c/ldv-regression/nested_structure_noptr-2.i[310,323] [2022-12-13 17:01:58,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:01:58,843 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:01:58,852 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d948d7-127c-419d-8600-9d86fdd13026/sv-benchmarks/c/ldv-regression/nested_structure_noptr-2.i[310,323] [2022-12-13 17:01:58,857 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:01:58,869 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:01:58,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:58 WrapperNode [2022-12-13 17:01:58,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:01:58,870 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:01:58,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:01:58,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:01:58,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:58" (1/1) ... [2022-12-13 17:01:58,883 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:58" (1/1) ... [2022-12-13 17:01:58,895 INFO L138 Inliner]: procedures = 13, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 28 [2022-12-13 17:01:58,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:01:58,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:01:58,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:01:58,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:01:58,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:58" (1/1) ... [2022-12-13 17:01:58,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:58" (1/1) ... [2022-12-13 17:01:58,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:58" (1/1) ... [2022-12-13 17:01:58,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:58" (1/1) ... [2022-12-13 17:01:58,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:58" (1/1) ... [2022-12-13 17:01:58,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:58" (1/1) ... [2022-12-13 17:01:58,909 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:58" (1/1) ... [2022-12-13 17:01:58,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:58" (1/1) ... [2022-12-13 17:01:58,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:01:58,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:01:58,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:01:58,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:01:58,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:58" (1/1) ... [2022-12-13 17:01:58,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:01:58,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d948d7-127c-419d-8600-9d86fdd13026/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:01:58,936 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d948d7-127c-419d-8600-9d86fdd13026/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:01:58,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d948d7-127c-419d-8600-9d86fdd13026/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:01:58,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:01:58,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:01:58,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:01:58,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 17:01:58,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:01:58,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:01:58,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 17:01:58,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:01:59,024 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:01:59,026 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:01:59,095 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:01:59,100 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:01:59,100 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 17:01:59,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:01:59 BoogieIcfgContainer [2022-12-13 17:01:59,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:01:59,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:01:59,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:01:59,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:01:59,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:01:58" (1/3) ... [2022-12-13 17:01:59,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f40f41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:01:59, skipping insertion in model container [2022-12-13 17:01:59,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:58" (2/3) ... [2022-12-13 17:01:59,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f40f41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:01:59, skipping insertion in model container [2022-12-13 17:01:59,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:01:59" (3/3) ... [2022-12-13 17:01:59,108 INFO L112 eAbstractionObserver]: Analyzing ICFG nested_structure_noptr-2.i [2022-12-13 17:01:59,123 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:01:59,123 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-13 17:01:59,158 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:01:59,163 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1e7bf5e7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:01:59,163 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-13 17:01:59,166 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 10 states have (on average 1.7) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:59,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-13 17:01:59,170 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:01:59,171 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-13 17:01:59,171 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-12-13 17:01:59,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:01:59,175 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2022-12-13 17:01:59,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:01:59,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838695434] [2022-12-13 17:01:59,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:01:59,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:01:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:01:59,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:01:59,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:01:59,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838695434] [2022-12-13 17:01:59,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838695434] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:01:59,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:01:59,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:01:59,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342678530] [2022-12-13 17:01:59,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:01:59,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:01:59,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:01:59,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:01:59,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:01:59,354 INFO L87 Difference]: Start difference. First operand has 17 states, 10 states have (on average 1.7) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:59,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:01:59,380 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2022-12-13 17:01:59,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:01:59,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-13 17:01:59,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:01:59,388 INFO L225 Difference]: With dead ends: 14 [2022-12-13 17:01:59,388 INFO L226 Difference]: Without dead ends: 12 [2022-12-13 17:01:59,389 INFO L412 NwaCegarLoop]: 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 [2022-12-13 17:01:59,392 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:01:59,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 9 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:01:59,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-12-13 17:01:59,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-12-13 17:01:59,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:59,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2022-12-13 17:01:59,415 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 3 [2022-12-13 17:01:59,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:01:59,415 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2022-12-13 17:01:59,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:59,416 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2022-12-13 17:01:59,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-13 17:01:59,416 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:01:59,416 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-13 17:01:59,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:01:59,416 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-12-13 17:01:59,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:01:59,417 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-12-13 17:01:59,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:01:59,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707924909] [2022-12-13 17:01:59,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:01:59,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:01:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:01:59,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:01:59,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:01:59,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707924909] [2022-12-13 17:01:59,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707924909] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:01:59,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:01:59,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:01:59,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539222638] [2022-12-13 17:01:59,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:01:59,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:01:59,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:01:59,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:01:59,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:01:59,490 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:59,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:01:59,500 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2022-12-13 17:01:59,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:01:59,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-13 17:01:59,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:01:59,501 INFO L225 Difference]: With dead ends: 10 [2022-12-13 17:01:59,501 INFO L226 Difference]: Without dead ends: 10 [2022-12-13 17:01:59,502 INFO L412 NwaCegarLoop]: 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 [2022-12-13 17:01:59,503 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:01:59,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 7 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:01:59,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-12-13 17:01:59,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-12-13 17:01:59,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.125) internal successors, (9), 9 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:59,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2022-12-13 17:01:59,507 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 3 [2022-12-13 17:01:59,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:01:59,507 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2022-12-13 17:01:59,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:59,507 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2022-12-13 17:01:59,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-13 17:01:59,508 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:01:59,508 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 17:01:59,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 17:01:59,508 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-12-13 17:01:59,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:01:59,509 INFO L85 PathProgramCache]: Analyzing trace with hash 889446280, now seen corresponding path program 1 times [2022-12-13 17:01:59,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:01:59,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291360] [2022-12-13 17:01:59,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:01:59,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:01:59,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:01:59,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:01:59,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:01:59,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291360] [2022-12-13 17:01:59,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291360] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:01:59,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:01:59,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:01:59,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907330116] [2022-12-13 17:01:59,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:01:59,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:01:59,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:01:59,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:01:59,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:01:59,601 INFO L87 Difference]: Start difference. First operand 10 states and 9 transitions. Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:59,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:01:59,625 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2022-12-13 17:01:59,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:01:59,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-13 17:01:59,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:01:59,625 INFO L225 Difference]: With dead ends: 8 [2022-12-13 17:01:59,625 INFO L226 Difference]: Without dead ends: 8 [2022-12-13 17:01:59,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:01:59,627 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:01:59,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 8 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:01:59,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2022-12-13 17:01:59,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-12-13 17:01:59,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:59,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2022-12-13 17:01:59,629 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 6 [2022-12-13 17:01:59,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:01:59,629 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2022-12-13 17:01:59,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:59,629 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2022-12-13 17:01:59,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 17:01:59,629 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:01:59,629 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:01:59,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 17:01:59,630 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2022-12-13 17:01:59,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:01:59,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1803029159, now seen corresponding path program 1 times [2022-12-13 17:01:59,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:01:59,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983014686] [2022-12-13 17:01:59,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:01:59,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:01:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:01:59,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:01:59,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:01:59,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983014686] [2022-12-13 17:01:59,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983014686] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:01:59,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:01:59,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:01:59,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158145770] [2022-12-13 17:01:59,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:01:59,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:01:59,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:01:59,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:01:59,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:01:59,695 INFO L87 Difference]: Start difference. First operand 8 states and 7 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:59,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:01:59,705 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2022-12-13 17:01:59,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:01:59,706 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-13 17:01:59,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:01:59,706 INFO L225 Difference]: With dead ends: 7 [2022-12-13 17:01:59,706 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 17:01:59,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:01:59,707 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:01:59,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:01:59,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 17:01:59,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 17:01:59,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:59,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 17:01:59,709 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2022-12-13 17:01:59,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:01:59,709 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 17:01:59,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:59,709 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 17:01:59,709 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 17:01:59,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 6 remaining) [2022-12-13 17:01:59,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 6 remaining) [2022-12-13 17:01:59,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 6 remaining) [2022-12-13 17:01:59,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 6 remaining) [2022-12-13 17:01:59,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (1 of 6 remaining) [2022-12-13 17:01:59,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2022-12-13 17:01:59,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 17:01:59,715 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 17:01:59,717 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 17:01:59,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:01:59 BoogieIcfgContainer [2022-12-13 17:01:59,719 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 17:01:59,720 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:01:59,720 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:01:59,720 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:01:59,720 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:01:59" (3/4) ... [2022-12-13 17:01:59,723 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 17:01:59,739 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-12-13 17:01:59,739 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 17:01:59,739 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 17:01:59,739 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 17:01:59,759 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d948d7-127c-419d-8600-9d86fdd13026/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 17:01:59,759 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:01:59,760 INFO L158 Benchmark]: Toolchain (without parser) took 1054.85ms. Allocated memory is still 172.0MB. Free memory was 138.2MB in the beginning and 141.4MB in the end (delta: -3.2MB). Peak memory consumption was 82.6MB. Max. memory is 16.1GB. [2022-12-13 17:01:59,760 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 123.7MB. Free memory was 89.8MB in the beginning and 89.8MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:01:59,760 INFO L158 Benchmark]: CACSL2BoogieTranslator took 164.05ms. Allocated memory is still 172.0MB. Free memory was 138.2MB in the beginning and 127.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 17:01:59,760 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.31ms. Allocated memory is still 172.0MB. Free memory was 127.7MB in the beginning and 126.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:01:59,761 INFO L158 Benchmark]: Boogie Preprocessor took 15.38ms. Allocated memory is still 172.0MB. Free memory was 126.4MB in the beginning and 125.6MB in the end (delta: 866.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:01:59,761 INFO L158 Benchmark]: RCFGBuilder took 189.22ms. Allocated memory is still 172.0MB. Free memory was 124.7MB in the beginning and 115.1MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 17:01:59,761 INFO L158 Benchmark]: TraceAbstraction took 616.17ms. Allocated memory is still 172.0MB. Free memory was 114.2MB in the beginning and 61.8MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2022-12-13 17:01:59,761 INFO L158 Benchmark]: Witness Printer took 39.63ms. Allocated memory is still 172.0MB. Free memory was 61.4MB in the beginning and 141.4MB in the end (delta: -79.9MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2022-12-13 17:01:59,762 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 123.7MB. Free memory was 89.8MB in the beginning and 89.8MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 164.05ms. Allocated memory is still 172.0MB. Free memory was 138.2MB in the beginning and 127.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.31ms. Allocated memory is still 172.0MB. Free memory was 127.7MB in the beginning and 126.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.38ms. Allocated memory is still 172.0MB. Free memory was 126.4MB in the beginning and 125.6MB in the end (delta: 866.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 189.22ms. Allocated memory is still 172.0MB. Free memory was 124.7MB in the beginning and 115.1MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 616.17ms. Allocated memory is still 172.0MB. Free memory was 114.2MB in the beginning and 61.8MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * Witness Printer took 39.63ms. Allocated memory is still 172.0MB. Free memory was 61.4MB in the beginning and 141.4MB in the end (delta: -79.9MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 27]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34 IncrementalHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 20 mSDtfsCounter, 34 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 15, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 68 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 17:01:59,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d948d7-127c-419d-8600-9d86fdd13026/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE