./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memset.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 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_c717bca1-4d90-4bfb-a545-928b68d42e56/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c717bca1-4d90-4bfb-a545-928b68d42e56/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c717bca1-4d90-4bfb-a545-928b68d42e56/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c717bca1-4d90-4bfb-a545-928b68d42e56/bin/uautomizer-vX5HgA9Q3a/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memset.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c717bca1-4d90-4bfb-a545-928b68d42e56/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c717bca1-4d90-4bfb-a545-928b68d42e56/bin/uautomizer-vX5HgA9Q3a --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 f0b671136c3b8e0a332730a51eabbaea09295c9938fd6e5af99480d4d2b7c8ed --- 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-b5237d8 [2022-11-21 09:07:12,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:07:12,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:07:12,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:07:12,856 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:07:12,858 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:07:12,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:07:12,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:07:12,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:07:12,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:07:12,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:07:12,866 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:07:12,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:07:12,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:07:12,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:07:12,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:07:12,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:07:12,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:07:12,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:07:12,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:07:12,883 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:07:12,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:07:12,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:07:12,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:07:12,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:07:12,904 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:07:12,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:07:12,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:07:12,906 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:07:12,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:07:12,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:07:12,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:07:12,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:07:12,914 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:07:12,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:07:12,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:07:12,919 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:07:12,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:07:12,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:07:12,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:07:12,925 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:07:12,926 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c717bca1-4d90-4bfb-a545-928b68d42e56/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-21 09:07:12,958 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:07:12,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:07:12,960 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:07:12,960 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:07:12,961 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:07:12,961 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:07:12,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:07:12,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:07:12,962 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:07:12,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:07:12,963 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 09:07:12,964 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 09:07:12,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:07:12,964 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 09:07:12,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:07:12,965 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-21 09:07:12,965 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-21 09:07:12,965 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-21 09:07:12,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:07:12,965 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 09:07:12,966 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 09:07:12,966 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:07:12,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:07:12,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:07:12,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:07:12,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:07:12,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:07:12,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:07:12,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:07:12,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 09:07:12,968 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_c717bca1-4d90-4bfb-a545-928b68d42e56/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c717bca1-4d90-4bfb-a545-928b68d42e56/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0b671136c3b8e0a332730a51eabbaea09295c9938fd6e5af99480d4d2b7c8ed [2022-11-21 09:07:13,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:07:13,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:07:13,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:07:13,332 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:07:13,332 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:07:13,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c717bca1-4d90-4bfb-a545-928b68d42e56/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-memsafety/memset.c [2022-11-21 09:07:16,410 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:07:16,661 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:07:16,662 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c717bca1-4d90-4bfb-a545-928b68d42e56/sv-benchmarks/c/ldv-memsafety/memset.c [2022-11-21 09:07:16,668 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c717bca1-4d90-4bfb-a545-928b68d42e56/bin/uautomizer-vX5HgA9Q3a/data/32f79403b/28a666323676425e93404c4b93fd1609/FLAG8e907791d [2022-11-21 09:07:16,685 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c717bca1-4d90-4bfb-a545-928b68d42e56/bin/uautomizer-vX5HgA9Q3a/data/32f79403b/28a666323676425e93404c4b93fd1609 [2022-11-21 09:07:16,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:07:16,690 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:07:16,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:07:16,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:07:16,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:07:16,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:07:16" (1/1) ... [2022-11-21 09:07:16,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1841ac53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:07:16, skipping insertion in model container [2022-11-21 09:07:16,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:07:16" (1/1) ... [2022-11-21 09:07:16,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:07:16,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:07:16,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:07:16,881 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:07:16,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:07:16,912 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:07:16,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:07:16 WrapperNode [2022-11-21 09:07:16,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:07:16,915 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:07:16,915 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:07:16,915 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:07:16,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:07:16" (1/1) ... [2022-11-21 09:07:16,928 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:07:16" (1/1) ... [2022-11-21 09:07:16,945 INFO L138 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 17 [2022-11-21 09:07:16,946 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:07:16,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:07:16,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:07:16,947 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:07:16,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:07:16" (1/1) ... [2022-11-21 09:07:16,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:07:16" (1/1) ... [2022-11-21 09:07:16,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:07:16" (1/1) ... [2022-11-21 09:07:16,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:07:16" (1/1) ... [2022-11-21 09:07:16,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:07:16" (1/1) ... [2022-11-21 09:07:16,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:07:16" (1/1) ... [2022-11-21 09:07:16,963 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:07:16" (1/1) ... [2022-11-21 09:07:16,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:07:16" (1/1) ... [2022-11-21 09:07:16,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:07:16,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:07:16,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:07:16,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:07:16,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:07:16" (1/1) ... [2022-11-21 09:07:16,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:07:16,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c717bca1-4d90-4bfb-a545-928b68d42e56/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:07:16,999 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c717bca1-4d90-4bfb-a545-928b68d42e56/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 09:07:17,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c717bca1-4d90-4bfb-a545-928b68d42e56/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 09:07:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:07:17,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:07:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 09:07:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 09:07:17,107 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:07:17,110 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:07:17,211 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:07:17,217 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:07:17,218 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 09:07:17,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:07:17 BoogieIcfgContainer [2022-11-21 09:07:17,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:07:17,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 09:07:17,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 09:07:17,226 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 09:07:17,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:07:16" (1/3) ... [2022-11-21 09:07:17,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69895c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:07:17, skipping insertion in model container [2022-11-21 09:07:17,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:07:16" (2/3) ... [2022-11-21 09:07:17,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69895c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:07:17, skipping insertion in model container [2022-11-21 09:07:17,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:07:17" (3/3) ... [2022-11-21 09:07:17,229 INFO L112 eAbstractionObserver]: Analyzing ICFG memset.c [2022-11-21 09:07:17,250 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 09:07:17,250 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-21 09:07:17,296 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 09:07:17,303 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=FINITE_AUTOMATA, 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;@48ee9640, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 09:07:17,304 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-21 09:07:17,308 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 8 states have (on average 1.5) internal successors, (12), 11 states have internal predecessors, (12), 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) [2022-11-21 09:07:17,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-21 09:07:17,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:07:17,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-21 09:07:17,316 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-21 09:07:17,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:07:17,322 INFO L85 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2022-11-21 09:07:17,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:07:17,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352747823] [2022-11-21 09:07:17,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:07:17,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:07:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:17,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:07:17,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:07:17,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352747823] [2022-11-21 09:07:17,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352747823] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:07:17,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:07:17,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:07:17,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753102794] [2022-11-21 09:07:17,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:07:17,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:07:17,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:07:17,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:07:17,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:07:17,632 INFO L87 Difference]: Start difference. First operand has 12 states, 8 states have (on average 1.5) internal successors, (12), 11 states have internal predecessors, (12), 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) [2022-11-21 09:07:17,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:07:17,670 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2022-11-21 09:07:17,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:07:17,673 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 [2022-11-21 09:07:17,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:07:17,681 INFO L225 Difference]: With dead ends: 11 [2022-11-21 09:07:17,681 INFO L226 Difference]: Without dead ends: 9 [2022-11-21 09:07:17,683 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 [2022-11-21 09:07:17,687 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:07:17,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 8 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:07:17,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-11-21 09:07:17,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-21 09:07:17,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 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) [2022-11-21 09:07:17,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-21 09:07:17,727 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 3 [2022-11-21 09:07:17,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:07:17,728 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-21 09:07:17,729 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) [2022-11-21 09:07:17,729 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-21 09:07:17,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-21 09:07:17,730 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:07:17,730 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-21 09:07:17,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 09:07:17,731 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-21 09:07:17,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:07:17,732 INFO L85 PathProgramCache]: Analyzing trace with hash 925572, now seen corresponding path program 1 times [2022-11-21 09:07:17,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:07:17,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774709317] [2022-11-21 09:07:17,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:07:17,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:07:17,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:17,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:07:17,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:07:17,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774709317] [2022-11-21 09:07:17,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774709317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:07:17,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:07:17,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 09:07:17,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927803270] [2022-11-21 09:07:17,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:07:17,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:07:17,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:07:17,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:07:17,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:07:17,928 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-21 09:07:17,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:07:17,940 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2022-11-21 09:07:17,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:07:17,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-11-21 09:07:17,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:07:17,942 INFO L225 Difference]: With dead ends: 8 [2022-11-21 09:07:17,942 INFO L226 Difference]: Without dead ends: 8 [2022-11-21 09:07:17,942 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 [2022-11-21 09:07:17,944 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:07:17,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 4 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:07:17,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2022-11-21 09:07:17,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-11-21 09:07:17,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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) [2022-11-21 09:07:17,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2022-11-21 09:07:17,948 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2022-11-21 09:07:17,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:07:17,949 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2022-11-21 09:07:17,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-21 09:07:17,949 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2022-11-21 09:07:17,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 09:07:17,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:07:17,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:07:17,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 09:07:17,951 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-21 09:07:17,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:07:17,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1803953449, now seen corresponding path program 1 times [2022-11-21 09:07:17,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:07:17,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135817084] [2022-11-21 09:07:17,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:07:17,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:07:17,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:07:18,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:07:18,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:07:18,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135817084] [2022-11-21 09:07:18,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135817084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:07:18,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:07:18,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:07:18,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608194507] [2022-11-21 09:07:18,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:07:18,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:07:18,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:07:18,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:07:18,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:07:18,149 INFO L87 Difference]: Start difference. First operand 8 states and 8 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) [2022-11-21 09:07:18,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:07:18,162 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2022-11-21 09:07:18,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 09:07:18,163 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 [2022-11-21 09:07:18,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:07:18,164 INFO L225 Difference]: With dead ends: 7 [2022-11-21 09:07:18,164 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 09:07:18,164 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 [2022-11-21 09:07:18,166 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 1 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6 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 [2022-11-21 09:07:18,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 09:07:18,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 09:07:18,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 09:07:18,168 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) [2022-11-21 09:07:18,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 09:07:18,169 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2022-11-21 09:07:18,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:07:18,169 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 09:07:18,169 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) [2022-11-21 09:07:18,170 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 09:07:18,170 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 09:07:18,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE (2 of 3 remaining) [2022-11-21 09:07:18,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (1 of 3 remaining) [2022-11-21 09:07:18,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (0 of 3 remaining) [2022-11-21 09:07:18,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 09:07:18,183 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-21 09:07:18,185 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 09:07:18,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:07:18 BoogieIcfgContainer [2022-11-21 09:07:18,189 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 09:07:18,190 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 09:07:18,190 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 09:07:18,190 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 09:07:18,191 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:07:17" (3/4) ... [2022-11-21 09:07:18,194 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 09:07:18,206 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-21 09:07:18,206 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-21 09:07:18,206 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 09:07:18,207 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 09:07:18,234 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c717bca1-4d90-4bfb-a545-928b68d42e56/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 09:07:18,234 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 09:07:18,235 INFO L158 Benchmark]: Toolchain (without parser) took 1545.05ms. Allocated memory is still 197.1MB. Free memory was 162.0MB in the beginning and 98.1MB in the end (delta: 63.9MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2022-11-21 09:07:18,235 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 197.1MB. Free memory is still 169.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:07:18,236 INFO L158 Benchmark]: CACSL2BoogieTranslator took 215.43ms. Allocated memory is still 197.1MB. Free memory was 162.0MB in the beginning and 152.6MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 09:07:18,236 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.23ms. Allocated memory is still 197.1MB. Free memory was 152.6MB in the beginning and 151.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:07:18,237 INFO L158 Benchmark]: Boogie Preprocessor took 19.17ms. Allocated memory is still 197.1MB. Free memory was 151.0MB in the beginning and 149.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:07:18,238 INFO L158 Benchmark]: RCFGBuilder took 253.87ms. Allocated memory is still 197.1MB. Free memory was 149.6MB in the beginning and 140.0MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 09:07:18,238 INFO L158 Benchmark]: TraceAbstraction took 966.59ms. Allocated memory is still 197.1MB. Free memory was 139.6MB in the beginning and 100.6MB in the end (delta: 39.0MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-21 09:07:18,239 INFO L158 Benchmark]: Witness Printer took 44.28ms. Allocated memory is still 197.1MB. Free memory was 100.6MB in the beginning and 98.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:07:18,242 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 197.1MB. Free memory is still 169.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 215.43ms. Allocated memory is still 197.1MB. Free memory was 162.0MB in the beginning and 152.6MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.23ms. Allocated memory is still 197.1MB. Free memory was 152.6MB in the beginning and 151.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.17ms. Allocated memory is still 197.1MB. Free memory was 151.0MB in the beginning and 149.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 253.87ms. Allocated memory is still 197.1MB. Free memory was 149.6MB in the beginning and 140.0MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 966.59ms. Allocated memory is still 197.1MB. Free memory was 139.6MB in the beginning and 100.6MB in the end (delta: 39.0MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 44.28ms. Allocated memory is still 197.1MB. Free memory was 100.6MB in the beginning and 98.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. 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: 25]: 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, 12 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 14 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 53 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 09:07:18,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c717bca1-4d90-4bfb-a545-928b68d42e56/bin/uautomizer-vX5HgA9Q3a/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