./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS --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 64bit --witnessprinter.graph.data.programhash 6a66369f5c9a0270ee2408adc274f8f50150ff97d329dbc5d86329753dd9abac --- 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-4e7fbc6 [2022-11-23 01:49:52,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 01:49:52,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 01:49:52,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 01:49:52,885 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 01:49:52,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 01:49:52,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 01:49:52,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 01:49:52,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 01:49:52,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 01:49:52,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 01:49:52,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 01:49:52,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 01:49:52,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 01:49:52,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 01:49:52,899 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 01:49:52,900 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 01:49:52,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 01:49:52,902 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 01:49:52,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 01:49:52,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 01:49:52,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 01:49:52,909 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 01:49:52,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 01:49:52,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 01:49:52,914 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 01:49:52,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 01:49:52,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 01:49:52,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 01:49:52,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 01:49:52,927 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 01:49:52,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 01:49:52,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 01:49:52,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 01:49:52,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 01:49:52,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 01:49:52,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 01:49:52,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 01:49:52,935 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 01:49:52,936 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 01:49:52,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 01:49:52,939 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2022-11-23 01:49:52,962 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 01:49:52,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 01:49:52,963 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 01:49:52,963 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 01:49:52,963 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 01:49:52,964 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 01:49:52,964 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 01:49:52,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 01:49:52,965 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 01:49:52,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 01:49:52,965 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 01:49:52,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 01:49:52,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 01:49:52,966 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-23 01:49:52,966 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-23 01:49:52,966 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-23 01:49:52,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 01:49:52,967 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 01:49:52,967 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 01:49:52,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 01:49:52,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 01:49:52,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 01:49:52,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 01:49:52,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 01:49:52,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 01:49:52,968 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 01:49:52,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 01:49:52,969 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 01:49:52,969 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 01:49:52,969 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 01:49:52,969 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_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a66369f5c9a0270ee2408adc274f8f50150ff97d329dbc5d86329753dd9abac [2022-11-23 01:49:53,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 01:49:53,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 01:49:53,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 01:49:53,254 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 01:49:53,258 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 01:49:53,260 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i [2022-11-23 01:49:56,359 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 01:49:56,559 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 01:49:56,559 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i [2022-11-23 01:49:56,565 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/data/d6e4eb634/cf357fdf3eea4ec88292c562597f1e40/FLAG68faa4f4a [2022-11-23 01:49:56,585 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/data/d6e4eb634/cf357fdf3eea4ec88292c562597f1e40 [2022-11-23 01:49:56,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 01:49:56,592 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 01:49:56,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 01:49:56,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 01:49:56,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 01:49:56,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:49:56" (1/1) ... [2022-11-23 01:49:56,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@675eb297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:56, skipping insertion in model container [2022-11-23 01:49:56,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:49:56" (1/1) ... [2022-11-23 01:49:56,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 01:49:56,628 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 01:49:56,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 01:49:56,789 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 01:49:56,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 01:49:56,816 INFO L208 MainTranslator]: Completed translation [2022-11-23 01:49:56,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:56 WrapperNode [2022-11-23 01:49:56,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 01:49:56,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 01:49:56,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 01:49:56,819 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 01:49:56,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:56" (1/1) ... [2022-11-23 01:49:56,834 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:56" (1/1) ... [2022-11-23 01:49:56,851 INFO L138 Inliner]: procedures = 11, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2022-11-23 01:49:56,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 01:49:56,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 01:49:56,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 01:49:56,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 01:49:56,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:56" (1/1) ... [2022-11-23 01:49:56,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:56" (1/1) ... [2022-11-23 01:49:56,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:56" (1/1) ... [2022-11-23 01:49:56,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:56" (1/1) ... [2022-11-23 01:49:56,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:56" (1/1) ... [2022-11-23 01:49:56,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:56" (1/1) ... [2022-11-23 01:49:56,869 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:56" (1/1) ... [2022-11-23 01:49:56,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:56" (1/1) ... [2022-11-23 01:49:56,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 01:49:56,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 01:49:56,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 01:49:56,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 01:49:56,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:56" (1/1) ... [2022-11-23 01:49:56,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 01:49:56,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:49:56,908 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 01:49:56,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 01:49:56,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 01:49:56,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 01:49:56,963 INFO L130 BoogieDeclarations]: Found specification of procedure chunk [2022-11-23 01:49:56,963 INFO L138 BoogieDeclarations]: Found implementation of procedure chunk [2022-11-23 01:49:56,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 01:49:56,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 01:49:56,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 01:49:57,046 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 01:49:57,048 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 01:49:57,282 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 01:49:57,297 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 01:49:57,297 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 01:49:57,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:49:57 BoogieIcfgContainer [2022-11-23 01:49:57,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 01:49:57,302 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 01:49:57,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 01:49:57,319 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 01:49:57,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:49:56" (1/3) ... [2022-11-23 01:49:57,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d15244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:49:57, skipping insertion in model container [2022-11-23 01:49:57,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:56" (2/3) ... [2022-11-23 01:49:57,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d15244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:49:57, skipping insertion in model container [2022-11-23 01:49:57,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:49:57" (3/3) ... [2022-11-23 01:49:57,334 INFO L112 eAbstractionObserver]: Analyzing ICFG chunk1-2.i [2022-11-23 01:49:57,371 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 01:49:57,372 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2022-11-23 01:49:57,418 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 01:49:57,425 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;@55d2eb75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 01:49:57,425 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-23 01:49:57,429 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 16 states have (on average 1.9375) internal successors, (31), 31 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 01:49:57,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 01:49:57,436 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 01:49:57,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 01:49:57,437 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [chunkErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, chunkErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, chunkErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-23 01:49:57,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:49:57,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1572078, now seen corresponding path program 1 times [2022-11-23 01:49:57,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:49:57,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215469148] [2022-11-23 01:49:57,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:49:57,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:49:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:49:57,552 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 01:49:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:49:57,583 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 01:49:57,585 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 01:49:57,586 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2022-11-23 01:49:57,588 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 13 remaining) [2022-11-23 01:49:57,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2022-11-23 01:49:57,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2022-11-23 01:49:57,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2022-11-23 01:49:57,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2022-11-23 01:49:57,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2022-11-23 01:49:57,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2022-11-23 01:49:57,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 13 remaining) [2022-11-23 01:49:57,591 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 13 remaining) [2022-11-23 01:49:57,591 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 13 remaining) [2022-11-23 01:49:57,591 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 13 remaining) [2022-11-23 01:49:57,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 13 remaining) [2022-11-23 01:49:57,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 01:49:57,597 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 01:49:57,602 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 01:49:57,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:49:57 BoogieIcfgContainer [2022-11-23 01:49:57,620 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 01:49:57,621 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 01:49:57,621 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 01:49:57,623 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 01:49:57,623 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:49:57" (3/4) ... [2022-11-23 01:49:57,627 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 01:49:57,627 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 01:49:57,628 INFO L158 Benchmark]: Toolchain (without parser) took 1036.10ms. Allocated memory is still 155.2MB. Free memory was 115.0MB in the beginning and 76.3MB in the end (delta: 38.7MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-23 01:49:57,629 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 155.2MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 01:49:57,629 INFO L158 Benchmark]: CACSL2BoogieTranslator took 222.50ms. Allocated memory is still 155.2MB. Free memory was 114.5MB in the beginning and 105.1MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 01:49:57,630 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.98ms. Allocated memory is still 155.2MB. Free memory was 105.1MB in the beginning and 103.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 01:49:57,630 INFO L158 Benchmark]: Boogie Preprocessor took 19.11ms. Allocated memory is still 155.2MB. Free memory was 103.5MB in the beginning and 102.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 01:49:57,631 INFO L158 Benchmark]: RCFGBuilder took 427.19ms. Allocated memory is still 155.2MB. Free memory was 102.4MB in the beginning and 90.4MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 01:49:57,632 INFO L158 Benchmark]: TraceAbstraction took 318.57ms. Allocated memory is still 155.2MB. Free memory was 89.9MB in the beginning and 76.3MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 01:49:57,632 INFO L158 Benchmark]: Witness Printer took 5.76ms. Allocated memory is still 155.2MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 01:49:57,636 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 155.2MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 222.50ms. Allocated memory is still 155.2MB. Free memory was 114.5MB in the beginning and 105.1MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.98ms. Allocated memory is still 155.2MB. Free memory was 105.1MB in the beginning and 103.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.11ms. Allocated memory is still 155.2MB. Free memory was 103.5MB in the beginning and 102.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 427.19ms. Allocated memory is still 155.2MB. Free memory was 102.4MB in the beginning and 90.4MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 318.57ms. Allocated memory is still 155.2MB. Free memory was 89.9MB in the beginning and 76.3MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 5.76ms. Allocated memory is still 155.2MB. Free memory is still 76.3MB. There was no memory consumed. 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 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L20] int *data = malloc(4*sizeof(int)); [L22] int i = __VERIFIER_nondet_int(); [L23] int upper = __VERIFIER_nondet_int(); [L25] COND TRUE i >= upper [L26] return 0; VAL [\result=0, data={-1:0}, i=0, upper=0] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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 [2022-11-23 01:49:57,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS --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 64bit --witnessprinter.graph.data.programhash 6a66369f5c9a0270ee2408adc274f8f50150ff97d329dbc5d86329753dd9abac --- 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-4e7fbc6 [2022-11-23 01:50:00,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 01:50:00,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 01:50:00,115 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 01:50:00,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 01:50:00,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 01:50:00,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 01:50:00,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 01:50:00,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 01:50:00,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 01:50:00,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 01:50:00,135 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 01:50:00,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 01:50:00,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 01:50:00,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 01:50:00,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 01:50:00,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 01:50:00,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 01:50:00,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 01:50:00,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 01:50:00,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 01:50:00,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 01:50:00,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 01:50:00,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 01:50:00,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 01:50:00,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 01:50:00,169 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 01:50:00,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 01:50:00,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 01:50:00,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 01:50:00,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 01:50:00,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 01:50:00,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 01:50:00,204 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 01:50:00,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 01:50:00,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 01:50:00,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 01:50:00,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 01:50:00,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 01:50:00,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 01:50:00,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 01:50:00,210 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2022-11-23 01:50:00,235 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 01:50:00,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 01:50:00,235 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 01:50:00,236 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 01:50:00,236 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 01:50:00,236 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 01:50:00,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 01:50:00,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 01:50:00,237 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 01:50:00,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 01:50:00,238 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 01:50:00,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 01:50:00,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 01:50:00,238 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-23 01:50:00,238 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-23 01:50:00,239 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-23 01:50:00,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 01:50:00,239 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 01:50:00,239 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 01:50:00,239 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 01:50:00,240 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 01:50:00,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 01:50:00,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 01:50:00,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 01:50:00,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 01:50:00,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 01:50:00,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 01:50:00,241 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-23 01:50:00,241 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 01:50:00,241 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 01:50:00,242 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 01:50:00,242 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 01:50:00,242 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-23 01:50:00,242 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_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a66369f5c9a0270ee2408adc274f8f50150ff97d329dbc5d86329753dd9abac [2022-11-23 01:50:00,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 01:50:00,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 01:50:00,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 01:50:00,629 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 01:50:00,631 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 01:50:00,633 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i [2022-11-23 01:50:03,843 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 01:50:04,015 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 01:50:04,016 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i [2022-11-23 01:50:04,022 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/data/c150fc294/54ba961c5af3428aad2ee4cdbd0c6ba6/FLAGa7ba98736 [2022-11-23 01:50:04,037 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/data/c150fc294/54ba961c5af3428aad2ee4cdbd0c6ba6 [2022-11-23 01:50:04,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 01:50:04,046 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 01:50:04,048 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 01:50:04,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 01:50:04,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 01:50:04,052 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:50:04" (1/1) ... [2022-11-23 01:50:04,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@797cc38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:04, skipping insertion in model container [2022-11-23 01:50:04,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:50:04" (1/1) ... [2022-11-23 01:50:04,061 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 01:50:04,074 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 01:50:04,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 01:50:04,240 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 01:50:04,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 01:50:04,268 INFO L208 MainTranslator]: Completed translation [2022-11-23 01:50:04,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:04 WrapperNode [2022-11-23 01:50:04,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 01:50:04,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 01:50:04,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 01:50:04,271 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 01:50:04,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:04" (1/1) ... [2022-11-23 01:50:04,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:04" (1/1) ... [2022-11-23 01:50:04,303 INFO L138 Inliner]: procedures = 11, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2022-11-23 01:50:04,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 01:50:04,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 01:50:04,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 01:50:04,304 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 01:50:04,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:04" (1/1) ... [2022-11-23 01:50:04,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:04" (1/1) ... [2022-11-23 01:50:04,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:04" (1/1) ... [2022-11-23 01:50:04,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:04" (1/1) ... [2022-11-23 01:50:04,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:04" (1/1) ... [2022-11-23 01:50:04,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:04" (1/1) ... [2022-11-23 01:50:04,324 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:04" (1/1) ... [2022-11-23 01:50:04,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:04" (1/1) ... [2022-11-23 01:50:04,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 01:50:04,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 01:50:04,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 01:50:04,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 01:50:04,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:04" (1/1) ... [2022-11-23 01:50:04,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 01:50:04,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:50:04,365 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 01:50:04,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 01:50:04,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 01:50:04,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-23 01:50:04,413 INFO L130 BoogieDeclarations]: Found specification of procedure chunk [2022-11-23 01:50:04,413 INFO L138 BoogieDeclarations]: Found implementation of procedure chunk [2022-11-23 01:50:04,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 01:50:04,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 01:50:04,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-23 01:50:04,486 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 01:50:04,487 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 01:50:04,766 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 01:50:04,776 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 01:50:04,777 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 01:50:04,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:50:04 BoogieIcfgContainer [2022-11-23 01:50:04,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 01:50:04,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 01:50:04,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 01:50:04,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 01:50:04,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:50:04" (1/3) ... [2022-11-23 01:50:04,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6511d925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:50:04, skipping insertion in model container [2022-11-23 01:50:04,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:04" (2/3) ... [2022-11-23 01:50:04,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6511d925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:50:04, skipping insertion in model container [2022-11-23 01:50:04,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:50:04" (3/3) ... [2022-11-23 01:50:04,788 INFO L112 eAbstractionObserver]: Analyzing ICFG chunk1-2.i [2022-11-23 01:50:04,822 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 01:50:04,822 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2022-11-23 01:50:04,865 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 01:50:04,872 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;@5cd0a8a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 01:50:04,872 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-23 01:50:04,876 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 16 states have (on average 1.9375) internal successors, (31), 31 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 01:50:04,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 01:50:04,881 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 01:50:04,881 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 01:50:04,882 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [chunkErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, chunkErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, chunkErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-23 01:50:04,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:50:04,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1572078, now seen corresponding path program 1 times [2022-11-23 01:50:04,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 01:50:04,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [391727826] [2022-11-23 01:50:04,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:50:04,900 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 01:50:04,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 01:50:04,907 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 01:50:04,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 01:50:04,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:04,974 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 01:50:04,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:50:05,021 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-23 01:50:05,027 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 01:50:05,029 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2022-11-23 01:50:05,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 13 remaining) [2022-11-23 01:50:05,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2022-11-23 01:50:05,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2022-11-23 01:50:05,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2022-11-23 01:50:05,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2022-11-23 01:50:05,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2022-11-23 01:50:05,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2022-11-23 01:50:05,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 13 remaining) [2022-11-23 01:50:05,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 13 remaining) [2022-11-23 01:50:05,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 13 remaining) [2022-11-23 01:50:05,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 13 remaining) [2022-11-23 01:50:05,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 13 remaining) [2022-11-23 01:50:05,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 01:50:05,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 01:50:05,253 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 01:50:05,257 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 01:50:05,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:50:05 BoogieIcfgContainer [2022-11-23 01:50:05,282 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 01:50:05,283 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 01:50:05,283 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 01:50:05,288 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 01:50:05,289 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:50:04" (3/4) ... [2022-11-23 01:50:05,293 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 01:50:05,302 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 01:50:05,303 INFO L158 Benchmark]: Toolchain (without parser) took 1257.47ms. Allocated memory is still 81.8MB. Free memory was 40.6MB in the beginning and 60.8MB in the end (delta: -20.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 01:50:05,304 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 81.8MB. Free memory is still 59.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 01:50:05,304 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.75ms. Allocated memory is still 81.8MB. Free memory was 40.4MB in the beginning and 60.3MB in the end (delta: -20.0MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2022-11-23 01:50:05,305 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.25ms. Allocated memory is still 81.8MB. Free memory was 60.3MB in the beginning and 58.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 01:50:05,306 INFO L158 Benchmark]: Boogie Preprocessor took 23.70ms. Allocated memory is still 81.8MB. Free memory was 58.7MB in the beginning and 57.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 01:50:05,306 INFO L158 Benchmark]: RCFGBuilder took 450.67ms. Allocated memory is still 81.8MB. Free memory was 57.2MB in the beginning and 45.0MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 01:50:05,307 INFO L158 Benchmark]: TraceAbstraction took 501.44ms. Allocated memory is still 81.8MB. Free memory was 44.3MB in the beginning and 61.2MB in the end (delta: -16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 01:50:05,308 INFO L158 Benchmark]: Witness Printer took 19.00ms. Allocated memory is still 81.8MB. Free memory was 61.2MB in the beginning and 60.8MB in the end (delta: 429.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 01:50:05,311 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 81.8MB. Free memory is still 59.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 221.75ms. Allocated memory is still 81.8MB. Free memory was 40.4MB in the beginning and 60.3MB in the end (delta: -20.0MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.25ms. Allocated memory is still 81.8MB. Free memory was 60.3MB in the beginning and 58.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.70ms. Allocated memory is still 81.8MB. Free memory was 58.7MB in the beginning and 57.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 450.67ms. Allocated memory is still 81.8MB. Free memory was 57.2MB in the beginning and 45.0MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 501.44ms. Allocated memory is still 81.8MB. Free memory was 44.3MB in the beginning and 61.2MB in the end (delta: -16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 19.00ms. Allocated memory is still 81.8MB. Free memory was 61.2MB in the beginning and 60.8MB in the end (delta: 429.0kB). There was no memory consumed. 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 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L20] int *data = malloc(4*sizeof(int)); [L22] int i = __VERIFIER_nondet_int(); [L23] int upper = __VERIFIER_nondet_int(); [L25] COND TRUE i >= upper [L26] return 0; VAL [\result=0, data={1:0}, i=0, upper=0] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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 [2022-11-23 01:50:05,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd98e016-70e7-4f1e-bac4-c0c7fe298b52/bin/uautomizer-QkZJyEgLgS/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: UNKNOWN: Overapproximated counterexample