./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-regression/alias_of_return.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 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_07b2bc56-59ca-4c3c-bea1-22abe2fd06d5/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b2bc56-59ca-4c3c-bea1-22abe2fd06d5/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b2bc56-59ca-4c3c-bea1-22abe2fd06d5/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b2bc56-59ca-4c3c-bea1-22abe2fd06d5/bin/utaipan-g80aRyZoba/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-regression/alias_of_return.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b2bc56-59ca-4c3c-bea1-22abe2fd06d5/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b2bc56-59ca-4c3c-bea1-22abe2fd06d5/bin/utaipan-g80aRyZoba --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 ba0bcfe856788bd0caa6dc699e0af14f5977926f33f52c273bc3aa3b61532a90 --- 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 [2022-11-22 02:26:46,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:26:46,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:26:46,372 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:26:46,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:26:46,374 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:26:46,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:26:46,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:26:46,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:26:46,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:26:46,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:26:46,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:26:46,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:26:46,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:26:46,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:26:46,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:26:46,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:26:46,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:26:46,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:26:46,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:26:46,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:26:46,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:26:46,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:26:46,395 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:26:46,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:26:46,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:26:46,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:26:46,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:26:46,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:26:46,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:26:46,402 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:26:46,403 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:26:46,404 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:26:46,405 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:26:46,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:26:46,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:26:46,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:26:46,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:26:46,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:26:46,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:26:46,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:26:46,417 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b2bc56-59ca-4c3c-bea1-22abe2fd06d5/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-22 02:26:46,452 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:26:46,452 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:26:46,453 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:26:46,453 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:26:46,453 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:26:46,454 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:26:46,454 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:26:46,454 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:26:46,454 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:26:46,454 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:26:46,454 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:26:46,455 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:26:46,455 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:26:46,455 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:26:46,455 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:26:46,455 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:26:46,456 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:26:46,456 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:26:46,456 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-22 02:26:46,456 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-22 02:26:46,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:26:46,457 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:26:46,457 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:26:46,457 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:26:46,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:26:46,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:26:46,462 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-22 02:26:46,462 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-22 02:26:46,463 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-22 02:26:46,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:26:46,463 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 02:26:46,463 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:26:46,463 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:26:46,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:26:46,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:26:46,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:26:46,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:26:46,465 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:26:46,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:26:46,466 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:26:46,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:26:46,467 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:26:46,467 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_07b2bc56-59ca-4c3c-bea1-22abe2fd06d5/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b2bc56-59ca-4c3c-bea1-22abe2fd06d5/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba0bcfe856788bd0caa6dc699e0af14f5977926f33f52c273bc3aa3b61532a90 [2022-11-22 02:26:46,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:26:46,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:26:46,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:26:46,815 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:26:46,816 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:26:46,817 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b2bc56-59ca-4c3c-bea1-22abe2fd06d5/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-regression/alias_of_return.i [2022-11-22 02:26:49,777 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:26:50,026 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:26:50,026 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b2bc56-59ca-4c3c-bea1-22abe2fd06d5/sv-benchmarks/c/ldv-regression/alias_of_return.i [2022-11-22 02:26:50,032 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b2bc56-59ca-4c3c-bea1-22abe2fd06d5/bin/utaipan-g80aRyZoba/data/07e85d5c2/05cf401ded474e0daadfadb0b88f8c01/FLAGde58b745a [2022-11-22 02:26:50,048 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b2bc56-59ca-4c3c-bea1-22abe2fd06d5/bin/utaipan-g80aRyZoba/data/07e85d5c2/05cf401ded474e0daadfadb0b88f8c01 [2022-11-22 02:26:50,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:26:50,055 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:26:50,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:26:50,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:26:50,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:26:50,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:26:50" (1/1) ... [2022-11-22 02:26:50,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2050ec5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:50, skipping insertion in model container [2022-11-22 02:26:50,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:26:50" (1/1) ... [2022-11-22 02:26:50,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:26:50,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:26:50,270 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b2bc56-59ca-4c3c-bea1-22abe2fd06d5/sv-benchmarks/c/ldv-regression/alias_of_return.i[288,301] [2022-11-22 02:26:50,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:26:50,305 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:26:50,318 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b2bc56-59ca-4c3c-bea1-22abe2fd06d5/sv-benchmarks/c/ldv-regression/alias_of_return.i[288,301] [2022-11-22 02:26:50,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:26:50,337 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:26:50,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:50 WrapperNode [2022-11-22 02:26:50,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:26:50,340 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:26:50,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:26:50,340 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:26:50,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:50" (1/1) ... [2022-11-22 02:26:50,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:50" (1/1) ... [2022-11-22 02:26:50,370 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 30 [2022-11-22 02:26:50,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:26:50,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:26:50,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:26:50,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:26:50,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:50" (1/1) ... [2022-11-22 02:26:50,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:50" (1/1) ... [2022-11-22 02:26:50,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:50" (1/1) ... [2022-11-22 02:26:50,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:50" (1/1) ... [2022-11-22 02:26:50,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:50" (1/1) ... [2022-11-22 02:26:50,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:50" (1/1) ... [2022-11-22 02:26:50,389 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:50" (1/1) ... [2022-11-22 02:26:50,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:50" (1/1) ... [2022-11-22 02:26:50,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:26:50,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:26:50,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:26:50,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:26:50,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:50" (1/1) ... [2022-11-22 02:26:50,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:26:50,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b2bc56-59ca-4c3c-bea1-22abe2fd06d5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:26:50,421 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b2bc56-59ca-4c3c-bea1-22abe2fd06d5/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:26:50,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b2bc56-59ca-4c3c-bea1-22abe2fd06d5/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:26:50,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:26:50,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:26:50,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:26:50,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:26:50,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:26:50,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:26:50,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:26:50,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:26:50,546 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:26:50,548 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:26:50,673 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:26:50,697 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:26:50,697 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 02:26:50,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:26:50 BoogieIcfgContainer [2022-11-22 02:26:50,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:26:50,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:26:50,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:26:50,706 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:26:50,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:26:50" (1/3) ... [2022-11-22 02:26:50,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@266e891a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:26:50, skipping insertion in model container [2022-11-22 02:26:50,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:26:50" (2/3) ... [2022-11-22 02:26:50,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@266e891a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:26:50, skipping insertion in model container [2022-11-22 02:26:50,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:26:50" (3/3) ... [2022-11-22 02:26:50,709 INFO L112 eAbstractionObserver]: Analyzing ICFG alias_of_return.i [2022-11-22 02:26:50,729 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:26:50,730 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-22 02:26:50,787 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:26:50,795 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;@3ec953ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:26:50,796 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-22 02:26:50,800 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 8 states have (on average 2.125) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:26:50,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-22 02:26:50,811 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:26:50,812 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-22 02:26:50,812 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-22 02:26:50,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:26:50,819 INFO L85 PathProgramCache]: Analyzing trace with hash 2019, now seen corresponding path program 1 times [2022-11-22 02:26:50,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:26:50,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153053886] [2022-11-22 02:26:50,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:26:50,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:26:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:26:51,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:26:51,116 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:26:51,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153053886] [2022-11-22 02:26:51,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153053886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:26:51,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:26:51,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:26:51,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033058218] [2022-11-22 02:26:51,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:26:51,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:26:51,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:26:51,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:26:51,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:26:51,168 INFO L87 Difference]: Start difference. First operand has 17 states, 8 states have (on average 2.125) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) 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) [2022-11-22 02:26:51,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:26:51,237 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2022-11-22 02:26:51,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:26:51,240 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 [2022-11-22 02:26:51,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:26:51,248 INFO L225 Difference]: With dead ends: 15 [2022-11-22 02:26:51,256 INFO L226 Difference]: Without dead ends: 14 [2022-11-22 02:26:51,258 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 [2022-11-22 02:26:51,261 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:26:51,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 5 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:26:51,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-22 02:26:51,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-22 02:26:51,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 8 states have (on average 1.625) internal successors, (13), 13 states have internal predecessors, (13), 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) [2022-11-22 02:26:51,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2022-11-22 02:26:51,325 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 2 [2022-11-22 02:26:51,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:26:51,325 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2022-11-22 02:26:51,325 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) [2022-11-22 02:26:51,326 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2022-11-22 02:26:51,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-22 02:26:51,326 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:26:51,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-22 02:26:51,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:26:51,327 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-22 02:26:51,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:26:51,328 INFO L85 PathProgramCache]: Analyzing trace with hash 2020, now seen corresponding path program 1 times [2022-11-22 02:26:51,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:26:51,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737580617] [2022-11-22 02:26:51,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:26:51,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:26:51,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:26:51,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:26:51,467 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:26:51,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737580617] [2022-11-22 02:26:51,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737580617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:26:51,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:26:51,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:26:51,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052468060] [2022-11-22 02:26:51,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:26:51,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:26:51,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:26:51,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:26:51,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:26:51,472 INFO L87 Difference]: Start difference. First operand 14 states and 13 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) [2022-11-22 02:26:51,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:26:51,489 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2022-11-22 02:26:51,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:26:51,490 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 [2022-11-22 02:26:51,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:26:51,491 INFO L225 Difference]: With dead ends: 12 [2022-11-22 02:26:51,491 INFO L226 Difference]: Without dead ends: 12 [2022-11-22 02:26:51,491 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 [2022-11-22 02:26:51,493 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:26:51,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 6 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:26:51,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-22 02:26:51,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-22 02:26:51,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:26:51,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2022-11-22 02:26:51,497 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 2 [2022-11-22 02:26:51,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:26:51,497 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2022-11-22 02:26:51,498 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) [2022-11-22 02:26:51,498 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2022-11-22 02:26:51,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 02:26:51,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:26:51,499 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 02:26:51,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:26:51,499 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-22 02:26:51,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:26:51,500 INFO L85 PathProgramCache]: Analyzing trace with hash 63498, now seen corresponding path program 1 times [2022-11-22 02:26:51,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:26:51,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072294245] [2022-11-22 02:26:51,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:26:51,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:26:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:26:51,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:26:51,573 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:26:51,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072294245] [2022-11-22 02:26:51,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072294245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:26:51,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:26:51,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:26:51,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526774080] [2022-11-22 02:26:51,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:26:51,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:26:51,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:26:51,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:26:51,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:26:51,577 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:26:51,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:26:51,592 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2022-11-22 02:26:51,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:26:51,593 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 [2022-11-22 02:26:51,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:26:51,594 INFO L225 Difference]: With dead ends: 11 [2022-11-22 02:26:51,594 INFO L226 Difference]: Without dead ends: 11 [2022-11-22 02:26:51,594 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 [2022-11-22 02:26:51,596 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:26:51,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:26:51,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-22 02:26:51,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-22 02:26:51,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.25) internal successors, (10), 10 states have internal predecessors, (10), 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) [2022-11-22 02:26:51,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2022-11-22 02:26:51,600 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 3 [2022-11-22 02:26:51,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:26:51,600 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2022-11-22 02:26:51,601 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) [2022-11-22 02:26:51,601 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2022-11-22 02:26:51,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 02:26:51,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:26:51,602 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 02:26:51,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:26:51,602 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-22 02:26:51,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:26:51,603 INFO L85 PathProgramCache]: Analyzing trace with hash 63499, now seen corresponding path program 1 times [2022-11-22 02:26:51,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:26:51,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542063321] [2022-11-22 02:26:51,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:26:51,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:26:51,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:26:51,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:26:51,836 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:26:51,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542063321] [2022-11-22 02:26:51,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542063321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:26:51,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:26:51,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:26:51,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571005707] [2022-11-22 02:26:51,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:26:51,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:26:51,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:26:51,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:26:51,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:26:51,841 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand has 4 states, 3 states have (on average 1.0) 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) [2022-11-22 02:26:51,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:26:51,887 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2022-11-22 02:26:51,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:26:51,887 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) 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 [2022-11-22 02:26:51,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:26:51,889 INFO L225 Difference]: With dead ends: 10 [2022-11-22 02:26:51,890 INFO L226 Difference]: Without dead ends: 10 [2022-11-22 02:26:51,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:26:51,901 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:26:51,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 5 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:26:51,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-11-22 02:26:51,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-22 02:26:51,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.125) internal successors, (9), 9 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:26:51,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2022-11-22 02:26:51,905 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 3 [2022-11-22 02:26:51,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:26:51,905 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2022-11-22 02:26:51,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) 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) [2022-11-22 02:26:51,905 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2022-11-22 02:26:51,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 02:26:51,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:26:51,906 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 02:26:51,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:26:51,909 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-22 02:26:51,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:26:51,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1891651205, now seen corresponding path program 1 times [2022-11-22 02:26:51,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:26:51,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891207862] [2022-11-22 02:26:51,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:26:51,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:26:51,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:26:52,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:26:52,066 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:26:52,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891207862] [2022-11-22 02:26:52,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891207862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:26:52,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:26:52,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:26:52,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775308521] [2022-11-22 02:26:52,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:26:52,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:26:52,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:26:52,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:26:52,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:26:52,069 INFO L87 Difference]: Start difference. First operand 10 states and 9 transitions. Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:26:52,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:26:52,106 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2022-11-22 02:26:52,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:26:52,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-22 02:26:52,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:26:52,108 INFO L225 Difference]: With dead ends: 8 [2022-11-22 02:26:52,108 INFO L226 Difference]: Without dead ends: 8 [2022-11-22 02:26:52,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:26:52,109 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 5 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:26:52,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 4 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:26:52,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2022-11-22 02:26:52,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-11-22 02:26:52,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:26:52,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2022-11-22 02:26:52,112 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 6 [2022-11-22 02:26:52,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:26:52,113 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2022-11-22 02:26:52,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:26:52,113 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2022-11-22 02:26:52,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 02:26:52,114 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:26:52,114 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:26:52,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:26:52,115 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-22 02:26:52,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:26:52,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1488347817, now seen corresponding path program 1 times [2022-11-22 02:26:52,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:26:52,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100262420] [2022-11-22 02:26:52,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:26:52,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:26:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:26:52,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:26:52,203 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:26:52,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100262420] [2022-11-22 02:26:52,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100262420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:26:52,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:26:52,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:26:52,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250647874] [2022-11-22 02:26:52,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:26:52,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:26:52,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:26:52,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:26:52,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:26:52,206 INFO L87 Difference]: Start difference. First operand 8 states and 7 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2022-11-22 02:26:52,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:26:52,224 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2022-11-22 02:26:52,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:26:52,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 [2022-11-22 02:26:52,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:26:52,225 INFO L225 Difference]: With dead ends: 7 [2022-11-22 02:26:52,226 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 02:26:52,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:26:52,230 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:26:52,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:26:52,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 02:26:52,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 02:26:52,233 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) [2022-11-22 02:26:52,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 02:26:52,234 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2022-11-22 02:26:52,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:26:52,234 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 02:26:52,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2022-11-22 02:26:52,234 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 02:26:52,235 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 02:26:52,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 8 remaining) [2022-11-22 02:26:52,238 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2022-11-22 02:26:52,240 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2022-11-22 02:26:52,241 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2022-11-22 02:26:52,241 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2022-11-22 02:26:52,241 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 8 remaining) [2022-11-22 02:26:52,241 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (1 of 8 remaining) [2022-11-22 02:26:52,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2022-11-22 02:26:52,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:26:52,245 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-22 02:26:52,249 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:26:52,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:26:52 BoogieIcfgContainer [2022-11-22 02:26:52,252 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:26:52,254 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:26:52,254 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:26:52,254 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:26:52,255 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:26:50" (3/4) ... [2022-11-22 02:26:52,258 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 02:26:52,274 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-22 02:26:52,274 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-22 02:26:52,275 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-22 02:26:52,275 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-22 02:26:52,307 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b2bc56-59ca-4c3c-bea1-22abe2fd06d5/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 02:26:52,308 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:26:52,308 INFO L158 Benchmark]: Toolchain (without parser) took 2253.38ms. Allocated memory was 132.1MB in the beginning and 165.7MB in the end (delta: 33.6MB). Free memory was 102.5MB in the beginning and 83.0MB in the end (delta: 19.5MB). Peak memory consumption was 54.6MB. Max. memory is 16.1GB. [2022-11-22 02:26:52,308 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 104.9MB. Free memory is still 57.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:26:52,309 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.08ms. Allocated memory is still 132.1MB. Free memory was 102.5MB in the beginning and 92.6MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-22 02:26:52,309 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.48ms. Allocated memory is still 132.1MB. Free memory was 92.6MB in the beginning and 91.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:26:52,309 INFO L158 Benchmark]: Boogie Preprocessor took 19.90ms. Allocated memory is still 132.1MB. Free memory was 91.0MB in the beginning and 90.0MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:26:52,310 INFO L158 Benchmark]: RCFGBuilder took 308.03ms. Allocated memory is still 132.1MB. Free memory was 90.0MB in the beginning and 78.4MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 02:26:52,310 INFO L158 Benchmark]: TraceAbstraction took 1549.64ms. Allocated memory was 132.1MB in the beginning and 165.7MB in the end (delta: 33.6MB). Free memory was 77.9MB in the beginning and 85.2MB in the end (delta: -7.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-22 02:26:52,311 INFO L158 Benchmark]: Witness Printer took 53.80ms. Allocated memory is still 165.7MB. Free memory was 85.2MB in the beginning and 83.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:26:52,313 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 104.9MB. Free memory is still 57.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.08ms. Allocated memory is still 132.1MB. Free memory was 102.5MB in the beginning and 92.6MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.48ms. Allocated memory is still 132.1MB. Free memory was 92.6MB in the beginning and 91.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.90ms. Allocated memory is still 132.1MB. Free memory was 91.0MB in the beginning and 90.0MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 308.03ms. Allocated memory is still 132.1MB. Free memory was 90.0MB in the beginning and 78.4MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1549.64ms. Allocated memory was 132.1MB in the beginning and 165.7MB in the end (delta: 33.6MB). Free memory was 77.9MB in the beginning and 85.2MB in the end (delta: -7.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 53.80ms. Allocated memory is still 165.7MB. Free memory was 85.2MB in the beginning and 83.0MB in the end (delta: 2.2MB). 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: -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: 10]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 61 IncrementalHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 20 mSDtfsCounter, 61 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 23, 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 90 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-22 02:26:52,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b2bc56-59ca-4c3c-bea1-22abe2fd06d5/bin/utaipan-g80aRyZoba/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