./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/StructInitialization1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1424fd50-4896-467f-ab28-7ff0d9b5f896/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1424fd50-4896-467f-ab28-7ff0d9b5f896/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1424fd50-4896-467f-ab28-7ff0d9b5f896/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1424fd50-4896-467f-ab28-7ff0d9b5f896/bin/utaipan-7li7fVZpFI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/StructInitialization1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1424fd50-4896-467f-ab28-7ff0d9b5f896/bin/utaipan-7li7fVZpFI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1424fd50-4896-467f-ab28-7ff0d9b5f896/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b5a281f9631a62a08c6928334ef6ea60eabb7bbadcb2bd7487e60124ebe01585 --- 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-5e519f3 [2022-11-03 01:53:41,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:53:41,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:53:41,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:53:41,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:53:41,461 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:53:41,463 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:53:41,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:53:41,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:53:41,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:53:41,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:53:41,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:53:41,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:53:41,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:53:41,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:53:41,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:53:41,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:53:41,487 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:53:41,489 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:53:41,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:53:41,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:53:41,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:53:41,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:53:41,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:53:41,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:53:41,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:53:41,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:53:41,516 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:53:41,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:53:41,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:53:41,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:53:41,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:53:41,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:53:41,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:53:41,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:53:41,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:53:41,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:53:41,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:53:41,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:53:41,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:53:41,527 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:53:41,528 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1424fd50-4896-467f-ab28-7ff0d9b5f896/bin/utaipan-7li7fVZpFI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-03 01:53:41,568 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:53:41,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:53:41,569 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:53:41,569 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:53:41,570 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:53:41,571 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:53:41,571 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:53:41,571 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:53:41,571 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:53:41,571 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:53:41,572 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:53:41,572 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:53:41,573 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:53:41,573 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:53:41,573 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:53:41,573 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:53:41,573 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:53:41,574 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:53:41,575 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-03 01:53:41,575 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-03 01:53:41,575 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:53:41,575 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 01:53:41,575 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 01:53:41,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:53:41,576 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 01:53:41,576 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:53:41,576 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-03 01:53:41,576 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-03 01:53:41,576 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-03 01:53:41,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:53:41,577 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 01:53:41,577 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 01:53:41,577 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:53:41,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:53:41,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:53:41,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:53:41,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:53:41,578 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:53:41,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:53:41,579 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:53:41,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:53:41,579 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:53:41,579 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_1424fd50-4896-467f-ab28-7ff0d9b5f896/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1424fd50-4896-467f-ab28-7ff0d9b5f896/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5a281f9631a62a08c6928334ef6ea60eabb7bbadcb2bd7487e60124ebe01585 [2022-11-03 01:53:41,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:53:41,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:53:41,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:53:41,956 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:53:41,957 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:53:41,958 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1424fd50-4896-467f-ab28-7ff0d9b5f896/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-memsafety/StructInitialization1.c [2022-11-03 01:53:42,032 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1424fd50-4896-467f-ab28-7ff0d9b5f896/bin/utaipan-7li7fVZpFI/data/446423252/acca6596b40d401ca47eb4b5deeb020d/FLAG53968c174 [2022-11-03 01:53:42,511 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:53:42,512 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1424fd50-4896-467f-ab28-7ff0d9b5f896/sv-benchmarks/c/ldv-memsafety/StructInitialization1.c [2022-11-03 01:53:42,522 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1424fd50-4896-467f-ab28-7ff0d9b5f896/bin/utaipan-7li7fVZpFI/data/446423252/acca6596b40d401ca47eb4b5deeb020d/FLAG53968c174 [2022-11-03 01:53:42,884 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1424fd50-4896-467f-ab28-7ff0d9b5f896/bin/utaipan-7li7fVZpFI/data/446423252/acca6596b40d401ca47eb4b5deeb020d [2022-11-03 01:53:42,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:53:42,891 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:53:42,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:53:42,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:53:42,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:53:42,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:53:42" (1/1) ... [2022-11-03 01:53:42,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3676c925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:42, skipping insertion in model container [2022-11-03 01:53:42,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:53:42" (1/1) ... [2022-11-03 01:53:42,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:53:42,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:53:43,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:53:43,248 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:53:43,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:53:43,314 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:53:43,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:43 WrapperNode [2022-11-03 01:53:43,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:53:43,316 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:53:43,316 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:53:43,316 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:53:43,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:43" (1/1) ... [2022-11-03 01:53:43,335 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:43" (1/1) ... [2022-11-03 01:53:43,366 INFO L138 Inliner]: procedures = 11, calls = 82, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 220 [2022-11-03 01:53:43,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:53:43,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:53:43,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:53:43,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:53:43,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:43" (1/1) ... [2022-11-03 01:53:43,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:43" (1/1) ... [2022-11-03 01:53:43,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:43" (1/1) ... [2022-11-03 01:53:43,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:43" (1/1) ... [2022-11-03 01:53:43,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:43" (1/1) ... [2022-11-03 01:53:43,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:43" (1/1) ... [2022-11-03 01:53:43,400 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:43" (1/1) ... [2022-11-03 01:53:43,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:43" (1/1) ... [2022-11-03 01:53:43,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:53:43,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:53:43,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:53:43,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:53:43,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:43" (1/1) ... [2022-11-03 01:53:43,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:53:43,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1424fd50-4896-467f-ab28-7ff0d9b5f896/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:53:43,458 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1424fd50-4896-467f-ab28-7ff0d9b5f896/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:53:43,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1424fd50-4896-467f-ab28-7ff0d9b5f896/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:53:43,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:53:43,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 01:53:43,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:53:43,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:53:43,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:53:43,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:53:43,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:53:43,598 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:53:43,600 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:53:44,362 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:53:44,467 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:53:44,467 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 01:53:44,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:53:44 BoogieIcfgContainer [2022-11-03 01:53:44,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:53:44,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:53:44,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:53:44,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:53:44,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:53:42" (1/3) ... [2022-11-03 01:53:44,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2711231d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:53:44, skipping insertion in model container [2022-11-03 01:53:44,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:53:43" (2/3) ... [2022-11-03 01:53:44,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2711231d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:53:44, skipping insertion in model container [2022-11-03 01:53:44,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:53:44" (3/3) ... [2022-11-03 01:53:44,482 INFO L112 eAbstractionObserver]: Analyzing ICFG StructInitialization1.c [2022-11-03 01:53:44,503 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:53:44,503 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 81 error locations. [2022-11-03 01:53:44,562 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:53:44,569 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;@76e2f7a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:53:44,570 INFO L358 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2022-11-03 01:53:44,574 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 42 states have (on average 2.9285714285714284) internal successors, (123), 123 states have internal predecessors, (123), 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) [2022-11-03 01:53:44,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-03 01:53:44,581 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:44,581 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-03 01:53:44,582 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 78 more)] === [2022-11-03 01:53:44,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:44,588 INFO L85 PathProgramCache]: Analyzing trace with hash 5956, now seen corresponding path program 1 times [2022-11-03 01:53:44,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:44,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970654932] [2022-11-03 01:53:44,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:44,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:44,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:45,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:53:45,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:45,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970654932] [2022-11-03 01:53:45,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970654932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:53:45,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:53:45,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 01:53:45,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274664660] [2022-11-03 01:53:45,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:53:45,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:53:45,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:53:45,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:53:45,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:53:45,130 INFO L87 Difference]: Start difference. First operand has 124 states, 42 states have (on average 2.9285714285714284) internal successors, (123), 123 states have internal predecessors, (123), 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 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-03 01:53:45,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:53:45,398 INFO L93 Difference]: Finished difference Result 84 states and 83 transitions. [2022-11-03 01:53:45,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:53:45,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-03 01:53:45,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:53:45,411 INFO L225 Difference]: With dead ends: 84 [2022-11-03 01:53:45,411 INFO L226 Difference]: Without dead ends: 83 [2022-11-03 01:53:45,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:53:45,417 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 82 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:53:45,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 0 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:53:45,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-03 01:53:45,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-11-03 01:53:45,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 42 states have (on average 1.9523809523809523) internal successors, (82), 82 states have internal predecessors, (82), 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) [2022-11-03 01:53:45,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 82 transitions. [2022-11-03 01:53:45,450 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 82 transitions. Word has length 2 [2022-11-03 01:53:45,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:53:45,450 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 82 transitions. [2022-11-03 01:53:45,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-03 01:53:45,451 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 82 transitions. [2022-11-03 01:53:45,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-03 01:53:45,451 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:45,451 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-03 01:53:45,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:53:45,452 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 78 more)] === [2022-11-03 01:53:45,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:45,452 INFO L85 PathProgramCache]: Analyzing trace with hash 5957, now seen corresponding path program 1 times [2022-11-03 01:53:45,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:45,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627930641] [2022-11-03 01:53:45,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:45,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:45,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:45,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:53:45,592 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:45,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627930641] [2022-11-03 01:53:45,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627930641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:53:45,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:53:45,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 01:53:45,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096950970] [2022-11-03 01:53:45,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:53:45,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:53:45,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:53:45,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:53:45,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:53:45,601 INFO L87 Difference]: Start difference. First operand 83 states and 82 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-03 01:53:45,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:53:45,758 INFO L93 Difference]: Finished difference Result 43 states and 42 transitions. [2022-11-03 01:53:45,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:53:45,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-03 01:53:45,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:53:45,762 INFO L225 Difference]: With dead ends: 43 [2022-11-03 01:53:45,763 INFO L226 Difference]: Without dead ends: 43 [2022-11-03 01:53:45,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:53:45,766 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 41 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:53:45,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 1 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:53:45,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-03 01:53:45,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-11-03 01:53:45,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.0) internal successors, (42), 42 states have internal predecessors, (42), 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) [2022-11-03 01:53:45,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 42 transitions. [2022-11-03 01:53:45,781 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 42 transitions. Word has length 2 [2022-11-03 01:53:45,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:53:45,782 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 42 transitions. [2022-11-03 01:53:45,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-03 01:53:45,783 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 42 transitions. [2022-11-03 01:53:45,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-03 01:53:45,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:53:45,785 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:53:45,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:53:45,785 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 78 more)] === [2022-11-03 01:53:45,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:53:45,786 INFO L85 PathProgramCache]: Analyzing trace with hash 583292792, now seen corresponding path program 1 times [2022-11-03 01:53:45,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:53:45,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519409718] [2022-11-03 01:53:45,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:53:45,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:53:45,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:53:45,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:53:45,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:53:45,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519409718] [2022-11-03 01:53:45,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519409718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:53:45,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:53:45,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 01:53:45,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529151815] [2022-11-03 01:53:45,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:53:45,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:53:45,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:53:45,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:53:45,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:53:45,935 INFO L87 Difference]: Start difference. First operand 43 states and 42 transitions. Second operand has 3 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 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) [2022-11-03 01:53:46,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:53:46,003 INFO L93 Difference]: Finished difference Result 42 states and 41 transitions. [2022-11-03 01:53:46,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:53:46,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 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 42 [2022-11-03 01:53:46,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:53:46,005 INFO L225 Difference]: With dead ends: 42 [2022-11-03 01:53:46,005 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 01:53:46,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:53:46,006 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:53:46,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:53:46,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 01:53:46,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 01:53:46,008 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) [2022-11-03 01:53:46,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 01:53:46,008 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2022-11-03 01:53:46,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:53:46,008 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 01:53:46,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 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) [2022-11-03 01:53:46,009 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 01:53:46,009 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 01:53:46,011 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (80 of 81 remaining) [2022-11-03 01:53:46,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (79 of 81 remaining) [2022-11-03 01:53:46,012 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (78 of 81 remaining) [2022-11-03 01:53:46,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (77 of 81 remaining) [2022-11-03 01:53:46,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (76 of 81 remaining) [2022-11-03 01:53:46,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (75 of 81 remaining) [2022-11-03 01:53:46,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (74 of 81 remaining) [2022-11-03 01:53:46,013 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (73 of 81 remaining) [2022-11-03 01:53:46,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (72 of 81 remaining) [2022-11-03 01:53:46,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (71 of 81 remaining) [2022-11-03 01:53:46,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (70 of 81 remaining) [2022-11-03 01:53:46,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (69 of 81 remaining) [2022-11-03 01:53:46,015 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (68 of 81 remaining) [2022-11-03 01:53:46,015 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 81 remaining) [2022-11-03 01:53:46,015 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (66 of 81 remaining) [2022-11-03 01:53:46,015 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (65 of 81 remaining) [2022-11-03 01:53:46,015 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 81 remaining) [2022-11-03 01:53:46,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (63 of 81 remaining) [2022-11-03 01:53:46,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (62 of 81 remaining) [2022-11-03 01:53:46,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 81 remaining) [2022-11-03 01:53:46,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 81 remaining) [2022-11-03 01:53:46,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 81 remaining) [2022-11-03 01:53:46,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 81 remaining) [2022-11-03 01:53:46,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 81 remaining) [2022-11-03 01:53:46,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 81 remaining) [2022-11-03 01:53:46,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 81 remaining) [2022-11-03 01:53:46,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 81 remaining) [2022-11-03 01:53:46,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 81 remaining) [2022-11-03 01:53:46,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 81 remaining) [2022-11-03 01:53:46,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 81 remaining) [2022-11-03 01:53:46,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 81 remaining) [2022-11-03 01:53:46,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 81 remaining) [2022-11-03 01:53:46,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 81 remaining) [2022-11-03 01:53:46,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 81 remaining) [2022-11-03 01:53:46,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 81 remaining) [2022-11-03 01:53:46,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 81 remaining) [2022-11-03 01:53:46,019 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 81 remaining) [2022-11-03 01:53:46,020 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 81 remaining) [2022-11-03 01:53:46,020 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 81 remaining) [2022-11-03 01:53:46,020 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 81 remaining) [2022-11-03 01:53:46,020 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 81 remaining) [2022-11-03 01:53:46,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr41REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 81 remaining) [2022-11-03 01:53:46,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 81 remaining) [2022-11-03 01:53:46,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 81 remaining) [2022-11-03 01:53:46,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr44REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 81 remaining) [2022-11-03 01:53:46,021 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr45REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 81 remaining) [2022-11-03 01:53:46,022 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 81 remaining) [2022-11-03 01:53:46,022 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr47REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 81 remaining) [2022-11-03 01:53:46,022 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr48REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 81 remaining) [2022-11-03 01:53:46,022 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 81 remaining) [2022-11-03 01:53:46,022 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr50REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 81 remaining) [2022-11-03 01:53:46,023 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr51REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 81 remaining) [2022-11-03 01:53:46,023 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 81 remaining) [2022-11-03 01:53:46,023 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 81 remaining) [2022-11-03 01:53:46,023 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr54REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 81 remaining) [2022-11-03 01:53:46,023 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 81 remaining) [2022-11-03 01:53:46,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr56REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 81 remaining) [2022-11-03 01:53:46,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr57REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 81 remaining) [2022-11-03 01:53:46,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr58REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 81 remaining) [2022-11-03 01:53:46,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 81 remaining) [2022-11-03 01:53:46,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 81 remaining) [2022-11-03 01:53:46,025 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 81 remaining) [2022-11-03 01:53:46,025 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr62REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 81 remaining) [2022-11-03 01:53:46,025 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr63REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 81 remaining) [2022-11-03 01:53:46,025 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr64REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 81 remaining) [2022-11-03 01:53:46,025 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr65REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 81 remaining) [2022-11-03 01:53:46,026 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 81 remaining) [2022-11-03 01:53:46,026 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 81 remaining) [2022-11-03 01:53:46,026 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr68REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 81 remaining) [2022-11-03 01:53:46,026 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr69REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 81 remaining) [2022-11-03 01:53:46,026 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 81 remaining) [2022-11-03 01:53:46,027 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 81 remaining) [2022-11-03 01:53:46,027 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr72REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 81 remaining) [2022-11-03 01:53:46,027 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr73REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 81 remaining) [2022-11-03 01:53:46,027 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr74REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 81 remaining) [2022-11-03 01:53:46,027 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr75REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 81 remaining) [2022-11-03 01:53:46,028 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 81 remaining) [2022-11-03 01:53:46,028 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 81 remaining) [2022-11-03 01:53:46,028 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 81 remaining) [2022-11-03 01:53:46,028 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr79REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 81 remaining) [2022-11-03 01:53:46,028 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_LEAK (0 of 81 remaining) [2022-11-03 01:53:46,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:53:46,032 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-03 01:53:46,035 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 01:53:46,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 01:53:46 BoogieIcfgContainer [2022-11-03 01:53:46,045 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 01:53:46,045 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 01:53:46,045 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 01:53:46,046 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 01:53:46,046 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:53:44" (3/4) ... [2022-11-03 01:53:46,049 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 01:53:46,071 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2022-11-03 01:53:46,071 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-03 01:53:46,072 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-03 01:53:46,072 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 01:53:46,175 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1424fd50-4896-467f-ab28-7ff0d9b5f896/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 01:53:46,175 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 01:53:46,176 INFO L158 Benchmark]: Toolchain (without parser) took 3284.56ms. Allocated memory was 104.9MB in the beginning and 144.7MB in the end (delta: 39.8MB). Free memory was 64.1MB in the beginning and 69.4MB in the end (delta: -5.3MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. [2022-11-03 01:53:46,176 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 104.9MB. Free memory was 80.4MB in the beginning and 80.3MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:53:46,176 INFO L158 Benchmark]: CACSL2BoogieTranslator took 419.88ms. Allocated memory is still 104.9MB. Free memory was 63.8MB in the beginning and 78.2MB in the end (delta: -14.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 01:53:46,177 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.57ms. Allocated memory is still 104.9MB. Free memory was 77.9MB in the beginning and 75.3MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 01:53:46,177 INFO L158 Benchmark]: Boogie Preprocessor took 37.15ms. Allocated memory is still 104.9MB. Free memory was 75.3MB in the beginning and 72.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 01:53:46,178 INFO L158 Benchmark]: RCFGBuilder took 1066.31ms. Allocated memory was 104.9MB in the beginning and 144.7MB in the end (delta: 39.8MB). Free memory was 72.3MB in the beginning and 115.1MB in the end (delta: -42.8MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. [2022-11-03 01:53:46,178 INFO L158 Benchmark]: TraceAbstraction took 1570.04ms. Allocated memory is still 144.7MB. Free memory was 114.2MB in the beginning and 76.8MB in the end (delta: 37.5MB). Peak memory consumption was 37.2MB. Max. memory is 16.1GB. [2022-11-03 01:53:46,178 INFO L158 Benchmark]: Witness Printer took 129.76ms. Allocated memory is still 144.7MB. Free memory was 76.8MB in the beginning and 69.4MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 01:53:46,181 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 104.9MB. Free memory was 80.4MB in the beginning and 80.3MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 419.88ms. Allocated memory is still 104.9MB. Free memory was 63.8MB in the beginning and 78.2MB in the end (delta: -14.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.57ms. Allocated memory is still 104.9MB. Free memory was 77.9MB in the beginning and 75.3MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.15ms. Allocated memory is still 104.9MB. Free memory was 75.3MB in the beginning and 72.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1066.31ms. Allocated memory was 104.9MB in the beginning and 144.7MB in the end (delta: 39.8MB). Free memory was 72.3MB in the beginning and 115.1MB in the end (delta: -42.8MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1570.04ms. Allocated memory is still 144.7MB. Free memory was 114.2MB in the beginning and 76.8MB in the end (delta: 37.5MB). Peak memory consumption was 37.2MB. Max. memory is 16.1GB. * Witness Printer took 129.76ms. Allocated memory is still 144.7MB. Free memory was 76.8MB in the beginning and 69.4MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 128]: 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, 124 locations, 81 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 123 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 123 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 78 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 165 IncrementalHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 78 mSolverCounterUnsat, 1 mSDtfsCounter, 165 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 0.5s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 148 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 81 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-03 01:53:46,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1424fd50-4896-467f-ab28-7ff0d9b5f896/bin/utaipan-7li7fVZpFI/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 Writing output log to file Ultimate.log Result: TRUE