./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb50efc-5b9a-457d-a24c-8e5aee055052/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb50efc-5b9a-457d-a24c-8e5aee055052/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb50efc-5b9a-457d-a24c-8e5aee055052/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb50efc-5b9a-457d-a24c-8e5aee055052/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb50efc-5b9a-457d-a24c-8e5aee055052/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb50efc-5b9a-457d-a24c-8e5aee055052/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 72289b7b84ec29dc48aff6fa2f8d521998f594af518139867a01f104107e1865 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:54:41,306 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:54:41,377 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb50efc-5b9a-457d-a24c-8e5aee055052/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:54:41,383 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:54:41,384 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:54:41,410 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:54:41,411 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:54:41,412 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:54:41,413 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:54:41,414 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:54:41,415 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:54:41,415 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:54:41,416 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:54:41,417 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:54:41,418 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:54:41,418 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:54:41,419 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:54:41,420 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:54:41,420 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:54:41,421 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:54:41,422 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:54:41,423 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:54:41,423 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:54:41,424 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:54:41,425 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:54:41,426 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:54:41,426 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:54:41,427 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:54:41,428 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:54:41,428 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:54:41,429 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:54:41,429 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:54:41,430 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:54:41,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:54:41,431 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:54:41,432 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:54:41,432 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:54:41,433 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:54:41,433 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:54:41,434 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb50efc-5b9a-457d-a24c-8e5aee055052/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb50efc-5b9a-457d-a24c-8e5aee055052/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72289b7b84ec29dc48aff6fa2f8d521998f594af518139867a01f104107e1865 [2023-11-19 07:54:41,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:54:41,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:54:41,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:54:41,752 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:54:41,752 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:54:41,754 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb50efc-5b9a-457d-a24c-8e5aee055052/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i [2023-11-19 07:54:44,980 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:54:45,330 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:54:45,331 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb50efc-5b9a-457d-a24c-8e5aee055052/sv-benchmarks/c/pthread-ext/18_read_write_lock.i [2023-11-19 07:54:45,353 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb50efc-5b9a-457d-a24c-8e5aee055052/bin/uautomizer-verify-uCwYo4JHxu/data/49bae263c/a3b36a325b734250ac45530529ecdb5b/FLAG12e2c592f [2023-11-19 07:54:45,371 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb50efc-5b9a-457d-a24c-8e5aee055052/bin/uautomizer-verify-uCwYo4JHxu/data/49bae263c/a3b36a325b734250ac45530529ecdb5b [2023-11-19 07:54:45,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:54:45,383 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:54:45,387 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:54:45,387 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:54:45,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:54:45,395 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:54:45" (1/1) ... [2023-11-19 07:54:45,396 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77a1c62f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:45, skipping insertion in model container [2023-11-19 07:54:45,396 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:54:45" (1/1) ... [2023-11-19 07:54:45,473 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:54:45,734 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:54:45,908 WARN L240 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_1cb50efc-5b9a-457d-a24c-8e5aee055052/sv-benchmarks/c/pthread-ext/18_read_write_lock.i[31161,31174] [2023-11-19 07:54:45,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:54:45,930 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:54:45,954 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:54:45,989 WARN L240 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_1cb50efc-5b9a-457d-a24c-8e5aee055052/sv-benchmarks/c/pthread-ext/18_read_write_lock.i[31161,31174] [2023-11-19 07:54:45,993 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:54:46,034 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:54:46,034 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:54:46,034 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:54:46,043 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:54:46,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:46 WrapperNode [2023-11-19 07:54:46,044 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:54:46,046 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:54:46,046 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:54:46,046 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:54:46,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:46" (1/1) ... [2023-11-19 07:54:46,086 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:46" (1/1) ... [2023-11-19 07:54:46,110 INFO L138 Inliner]: procedures = 174, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 77 [2023-11-19 07:54:46,111 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:54:46,112 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:54:46,112 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:54:46,112 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:54:46,123 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:46" (1/1) ... [2023-11-19 07:54:46,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:46" (1/1) ... [2023-11-19 07:54:46,127 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:46" (1/1) ... [2023-11-19 07:54:46,127 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:46" (1/1) ... [2023-11-19 07:54:46,134 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:46" (1/1) ... [2023-11-19 07:54:46,137 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:46" (1/1) ... [2023-11-19 07:54:46,139 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:46" (1/1) ... [2023-11-19 07:54:46,141 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:46" (1/1) ... [2023-11-19 07:54:46,147 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:54:46,148 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:54:46,149 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:54:46,149 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:54:46,150 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:46" (1/1) ... [2023-11-19 07:54:46,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:54:46,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb50efc-5b9a-457d-a24c-8e5aee055052/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:46,196 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb50efc-5b9a-457d-a24c-8e5aee055052/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:54:46,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb50efc-5b9a-457d-a24c-8e5aee055052/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:54:46,246 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-19 07:54:46,246 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-19 07:54:46,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:54:46,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:54:46,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:54:46,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:54:46,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:54:46,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:54:46,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:54:46,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:54:46,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:54:46,249 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:54:46,386 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:54:46,388 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:54:46,577 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:54:46,638 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:54:46,639 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:54:46,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:46 BoogieIcfgContainer [2023-11-19 07:54:46,642 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:54:46,645 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:54:46,645 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:54:46,649 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:54:46,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:54:45" (1/3) ... [2023-11-19 07:54:46,650 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9e9cb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:54:46, skipping insertion in model container [2023-11-19 07:54:46,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:46" (2/3) ... [2023-11-19 07:54:46,651 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9e9cb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:54:46, skipping insertion in model container [2023-11-19 07:54:46,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:46" (3/3) ... [2023-11-19 07:54:46,652 INFO L112 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2023-11-19 07:54:46,662 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:54:46,671 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:54:46,671 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:54:46,671 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:54:46,707 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:54:46,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 53 transitions, 110 flow [2023-11-19 07:54:46,792 INFO L124 PetriNetUnfolderBase]: 1/52 cut-off events. [2023-11-19 07:54:46,793 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:54:46,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2023-11-19 07:54:46,797 INFO L82 GeneralOperation]: Start removeDead. Operand has 56 places, 53 transitions, 110 flow [2023-11-19 07:54:46,800 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 36 transitions, 75 flow [2023-11-19 07:54:46,808 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:54:46,818 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 36 transitions, 75 flow [2023-11-19 07:54:46,821 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 36 transitions, 75 flow [2023-11-19 07:54:46,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 36 transitions, 75 flow [2023-11-19 07:54:46,835 INFO L124 PetriNetUnfolderBase]: 0/36 cut-off events. [2023-11-19 07:54:46,835 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:54:46,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 36 events. 0/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 11 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-19 07:54:46,836 INFO L119 LiptonReduction]: Number of co-enabled transitions 156 [2023-11-19 07:54:48,177 INFO L134 LiptonReduction]: Checked pairs total: 280 [2023-11-19 07:54:48,177 INFO L136 LiptonReduction]: Total number of compositions: 28 [2023-11-19 07:54:48,204 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:54:48,213 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@6b183b0f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:54:48,214 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 07:54:48,220 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:54:48,221 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2023-11-19 07:54:48,221 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:54:48,221 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:54:48,222 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:54:48,223 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-19 07:54:48,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:48,228 INFO L85 PathProgramCache]: Analyzing trace with hash 231059293, now seen corresponding path program 1 times [2023-11-19 07:54:48,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:48,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213428077] [2023-11-19 07:54:48,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:48,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:48,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:48,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:54:48,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213428077] [2023-11-19 07:54:48,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213428077] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:48,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:48,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:54:48,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394738404] [2023-11-19 07:54:48,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:48,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:54:48,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:54:48,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:54:48,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:54:48,615 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 81 [2023-11-19 07:54:48,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 8 transitions, 19 flow. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2023-11-19 07:54:48,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:54:48,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 81 [2023-11-19 07:54:48,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:54:48,648 INFO L124 PetriNetUnfolderBase]: 6/23 cut-off events. [2023-11-19 07:54:48,648 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:54:48,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 23 events. 6/23 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 3 based on Foata normal form. 4/27 useless extension candidates. Maximal degree in co-relation 42. Up to 12 conditions per place. [2023-11-19 07:54:48,650 INFO L140 encePairwiseOnDemand]: 77/81 looper letters, 6 selfloop transitions, 2 changer transitions 3/11 dead transitions. [2023-11-19 07:54:48,650 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 14 places, 11 transitions, 47 flow [2023-11-19 07:54:48,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:54:48,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:54:48,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 144 transitions. [2023-11-19 07:54:48,666 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5925925925925926 [2023-11-19 07:54:48,667 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 144 transitions. [2023-11-19 07:54:48,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 144 transitions. [2023-11-19 07:54:48,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:54:48,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 144 transitions. [2023-11-19 07:54:48,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2023-11-19 07:54:48,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 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) [2023-11-19 07:54:48,681 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 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) [2023-11-19 07:54:48,683 INFO L175 Difference]: Start difference. First operand has 12 places, 8 transitions, 19 flow. Second operand 3 states and 144 transitions. [2023-11-19 07:54:48,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 14 places, 11 transitions, 47 flow [2023-11-19 07:54:48,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 11 transitions, 46 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:54:48,691 INFO L231 Difference]: Finished difference. Result has 15 places, 8 transitions, 30 flow [2023-11-19 07:54:48,693 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=18, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=30, PETRI_PLACES=15, PETRI_TRANSITIONS=8} [2023-11-19 07:54:48,698 INFO L281 CegarLoopForPetriNet]: 12 programPoint places, 3 predicate places. [2023-11-19 07:54:48,699 INFO L495 AbstractCegarLoop]: Abstraction has has 15 places, 8 transitions, 30 flow [2023-11-19 07:54:48,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2023-11-19 07:54:48,699 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:54:48,699 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:48,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:54:48,700 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-19 07:54:48,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:48,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1290297659, now seen corresponding path program 1 times [2023-11-19 07:54:48,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:48,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682723244] [2023-11-19 07:54:48,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:48,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:48,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:48,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:54:48,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682723244] [2023-11-19 07:54:48,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682723244] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:48,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:48,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:54:48,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675294068] [2023-11-19 07:54:48,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:48,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:54:48,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:54:48,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:54:48,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:54:48,884 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 81 [2023-11-19 07:54:48,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 8 transitions, 30 flow. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 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) [2023-11-19 07:54:48,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:54:48,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 81 [2023-11-19 07:54:48,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:54:48,916 INFO L124 PetriNetUnfolderBase]: 2/16 cut-off events. [2023-11-19 07:54:48,917 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-19 07:54:48,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 16 events. 2/16 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 1 based on Foata normal form. 2/18 useless extension candidates. Maximal degree in co-relation 34. Up to 10 conditions per place. [2023-11-19 07:54:48,918 INFO L140 encePairwiseOnDemand]: 78/81 looper letters, 5 selfloop transitions, 2 changer transitions 1/9 dead transitions. [2023-11-19 07:54:48,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 9 transitions, 48 flow [2023-11-19 07:54:48,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:54:48,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:54:48,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 193 transitions. [2023-11-19 07:54:48,922 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.595679012345679 [2023-11-19 07:54:48,922 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 193 transitions. [2023-11-19 07:54:48,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 193 transitions. [2023-11-19 07:54:48,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:54:48,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 193 transitions. [2023-11-19 07:54:48,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 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) [2023-11-19 07:54:48,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 81.0) internal successors, (405), 5 states have internal predecessors, (405), 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) [2023-11-19 07:54:48,929 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 81.0) internal successors, (405), 5 states have internal predecessors, (405), 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) [2023-11-19 07:54:48,929 INFO L175 Difference]: Start difference. First operand has 15 places, 8 transitions, 30 flow. Second operand 4 states and 193 transitions. [2023-11-19 07:54:48,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 9 transitions, 48 flow [2023-11-19 07:54:48,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 9 transitions, 44 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:54:48,931 INFO L231 Difference]: Finished difference. Result has 17 places, 8 transitions, 33 flow [2023-11-19 07:54:48,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=33, PETRI_PLACES=17, PETRI_TRANSITIONS=8} [2023-11-19 07:54:48,933 INFO L281 CegarLoopForPetriNet]: 12 programPoint places, 5 predicate places. [2023-11-19 07:54:48,933 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 8 transitions, 33 flow [2023-11-19 07:54:48,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 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) [2023-11-19 07:54:48,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:54:48,938 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:48,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:54:48,939 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-19 07:54:48,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:48,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1309065989, now seen corresponding path program 2 times [2023-11-19 07:54:48,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:48,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757298850] [2023-11-19 07:54:48,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:48,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:49,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:49,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:54:49,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757298850] [2023-11-19 07:54:49,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757298850] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:49,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:49,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:54:49,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306037818] [2023-11-19 07:54:49,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:49,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:54:49,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:54:49,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:54:49,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:54:49,051 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 81 [2023-11-19 07:54:49,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 8 transitions, 33 flow. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2023-11-19 07:54:49,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:54:49,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 81 [2023-11-19 07:54:49,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:54:49,071 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-11-19 07:54:49,072 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-19 07:54:49,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 8 events. 0/8 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 1/9 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2023-11-19 07:54:49,073 INFO L140 encePairwiseOnDemand]: 78/81 looper letters, 0 selfloop transitions, 0 changer transitions 7/7 dead transitions. [2023-11-19 07:54:49,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 7 transitions, 41 flow [2023-11-19 07:54:49,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:54:49,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:54:49,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 145 transitions. [2023-11-19 07:54:49,079 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5967078189300411 [2023-11-19 07:54:49,080 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 145 transitions. [2023-11-19 07:54:49,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 145 transitions. [2023-11-19 07:54:49,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:54:49,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 145 transitions. [2023-11-19 07:54:49,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2023-11-19 07:54:49,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 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) [2023-11-19 07:54:49,087 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 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) [2023-11-19 07:54:49,087 INFO L175 Difference]: Start difference. First operand has 17 places, 8 transitions, 33 flow. Second operand 3 states and 145 transitions. [2023-11-19 07:54:49,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 7 transitions, 41 flow [2023-11-19 07:54:49,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 7 transitions, 36 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 07:54:49,089 INFO L231 Difference]: Finished difference. Result has 15 places, 0 transitions, 0 flow [2023-11-19 07:54:49,090 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=15, PETRI_TRANSITIONS=0} [2023-11-19 07:54:49,091 INFO L281 CegarLoopForPetriNet]: 12 programPoint places, 3 predicate places. [2023-11-19 07:54:49,091 INFO L495 AbstractCegarLoop]: Abstraction has has 15 places, 0 transitions, 0 flow [2023-11-19 07:54:49,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2023-11-19 07:54:49,094 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-11-19 07:54:49,095 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-11-19 07:54:49,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:54:49,095 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2023-11-19 07:54:49,099 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:54:49,100 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:54:49,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:54:49 BasicIcfg [2023-11-19 07:54:49,106 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:54:49,108 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:54:49,108 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:54:49,108 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:54:49,111 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:46" (3/4) ... [2023-11-19 07:54:49,113 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:54:49,118 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2023-11-19 07:54:49,126 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-19 07:54:49,126 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 07:54:49,127 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:54:49,127 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:54:49,244 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb50efc-5b9a-457d-a24c-8e5aee055052/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:54:49,245 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb50efc-5b9a-457d-a24c-8e5aee055052/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:54:49,245 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:54:49,246 INFO L158 Benchmark]: Toolchain (without parser) took 3862.98ms. Allocated memory is still 161.5MB. Free memory was 115.9MB in the beginning and 56.9MB in the end (delta: 59.0MB). Peak memory consumption was 61.2MB. Max. memory is 16.1GB. [2023-11-19 07:54:49,246 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 115.3MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:54:49,247 INFO L158 Benchmark]: CACSL2BoogieTranslator took 658.13ms. Allocated memory is still 161.5MB. Free memory was 115.9MB in the beginning and 95.7MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 07:54:49,247 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.43ms. Allocated memory is still 161.5MB. Free memory was 95.7MB in the beginning and 93.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:54:49,248 INFO L158 Benchmark]: Boogie Preprocessor took 35.99ms. Allocated memory is still 161.5MB. Free memory was 93.7MB in the beginning and 92.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:54:49,248 INFO L158 Benchmark]: RCFGBuilder took 494.16ms. Allocated memory is still 161.5MB. Free memory was 92.4MB in the beginning and 124.4MB in the end (delta: -32.0MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2023-11-19 07:54:49,249 INFO L158 Benchmark]: TraceAbstraction took 2461.64ms. Allocated memory is still 161.5MB. Free memory was 123.1MB in the beginning and 61.2MB in the end (delta: 61.9MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. [2023-11-19 07:54:49,249 INFO L158 Benchmark]: Witness Printer took 137.20ms. Allocated memory is still 161.5MB. Free memory was 61.2MB in the beginning and 56.9MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:54:49,252 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 115.3MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 658.13ms. Allocated memory is still 161.5MB. Free memory was 115.9MB in the beginning and 95.7MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.43ms. Allocated memory is still 161.5MB. Free memory was 95.7MB in the beginning and 93.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.99ms. Allocated memory is still 161.5MB. Free memory was 93.7MB in the beginning and 92.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 494.16ms. Allocated memory is still 161.5MB. Free memory was 92.4MB in the beginning and 124.4MB in the end (delta: -32.0MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2461.64ms. Allocated memory is still 161.5MB. Free memory was 123.1MB in the beginning and 61.2MB in the end (delta: 61.9MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. * Witness Printer took 137.20ms. Allocated memory is still 161.5MB. Free memory was 61.2MB in the beginning and 56.9MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.4s, 40 PlacesBefore, 12 PlacesAfterwards, 36 TransitionsBefore, 8 TransitionsAfterwards, 156 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 28 TotalNumberOfCompositions, 280 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 177, independent: 133, independent conditional: 0, independent unconditional: 133, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 91, independent: 79, independent conditional: 0, independent unconditional: 79, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 177, independent: 54, independent conditional: 0, independent unconditional: 54, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 91, unknown conditional: 0, unknown unconditional: 91] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 5, Positive conditional cache size: 0, Positive unconditional cache size: 5, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 738]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 61 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 62 IncrementalHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 7 mSDtfsCounter, 62 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=2, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 07:54:49,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cb50efc-5b9a-457d-a24c-8e5aee055052/bin/uautomizer-verify-uCwYo4JHxu/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