./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/singleton_with-uninit-problems.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_dad33f7a-5e00-4c51-b65f-ffc4f4c266b8/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad33f7a-5e00-4c51-b65f-ffc4f4c266b8/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_dad33f7a-5e00-4c51-b65f-ffc4f4c266b8/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad33f7a-5e00-4c51-b65f-ffc4f4c266b8/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad33f7a-5e00-4c51-b65f-ffc4f4c266b8/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_dad33f7a-5e00-4c51-b65f-ffc4f4c266b8/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 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:37:34,512 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:37:34,610 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad33f7a-5e00-4c51-b65f-ffc4f4c266b8/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:37:34,616 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:37:34,617 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:37:34,659 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:37:34,661 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:37:34,662 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:37:34,663 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:37:34,670 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:37:34,672 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:37:34,672 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:37:34,673 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:37:34,675 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:37:34,675 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:37:34,675 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:37:34,676 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:37:34,676 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:37:34,677 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:37:34,677 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:37:34,677 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:37:34,678 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:37:34,686 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:37:34,687 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:37:34,687 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:37:34,688 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:37:34,688 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:37:34,688 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:37:34,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:37:34,689 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:37:34,689 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:37:34,690 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:37:34,690 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:37:34,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:37:34,691 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:37:34,691 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:37:34,691 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:37:34,691 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:37:34,691 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:37:34,692 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_dad33f7a-5e00-4c51-b65f-ffc4f4c266b8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad33f7a-5e00-4c51-b65f-ffc4f4c266b8/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 [2023-11-19 07:37:34,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:37:35,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:37:35,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:37:35,029 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:37:35,030 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:37:35,031 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad33f7a-5e00-4c51-b65f-ffc4f4c266b8/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2023-11-19 07:37:37,989 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:37:38,416 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:37:38,417 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad33f7a-5e00-4c51-b65f-ffc4f4c266b8/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2023-11-19 07:37:38,443 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad33f7a-5e00-4c51-b65f-ffc4f4c266b8/bin/uautomizer-verify-uCwYo4JHxu/data/37dc97c4b/d51bca49a2bf4fd2956a6c8a7f51d29a/FLAGfaf6e25fd [2023-11-19 07:37:38,465 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad33f7a-5e00-4c51-b65f-ffc4f4c266b8/bin/uautomizer-verify-uCwYo4JHxu/data/37dc97c4b/d51bca49a2bf4fd2956a6c8a7f51d29a [2023-11-19 07:37:38,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:37:38,473 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:37:38,477 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:38,477 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:37:38,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:37:38,483 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:38" (1/1) ... [2023-11-19 07:37:38,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e44acdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:38, skipping insertion in model container [2023-11-19 07:37:38,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:38" (1/1) ... [2023-11-19 07:37:38,554 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:37:38,813 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:37:39,162 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_dad33f7a-5e00-4c51-b65f-ffc4f4c266b8/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i[55568,55581] [2023-11-19 07:37:39,207 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:39,220 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:37:39,236 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:37:39,257 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_dad33f7a-5e00-4c51-b65f-ffc4f4c266b8/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i[55568,55581] [2023-11-19 07:37:39,266 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:39,347 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:39,347 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:39,347 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:39,356 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:37:39,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39 WrapperNode [2023-11-19 07:37:39,357 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:39,358 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:39,358 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:37:39,358 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:37:39,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39" (1/1) ... [2023-11-19 07:37:39,395 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39" (1/1) ... [2023-11-19 07:37:39,420 INFO L138 Inliner]: procedures = 325, calls = 53, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 40 [2023-11-19 07:37:39,420 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:39,420 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:37:39,420 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:37:39,421 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:37:39,429 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39" (1/1) ... [2023-11-19 07:37:39,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39" (1/1) ... [2023-11-19 07:37:39,433 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39" (1/1) ... [2023-11-19 07:37:39,433 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39" (1/1) ... [2023-11-19 07:37:39,443 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39" (1/1) ... [2023-11-19 07:37:39,446 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39" (1/1) ... [2023-11-19 07:37:39,448 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39" (1/1) ... [2023-11-19 07:37:39,450 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39" (1/1) ... [2023-11-19 07:37:39,454 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:37:39,455 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:37:39,455 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:37:39,455 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:37:39,456 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39" (1/1) ... [2023-11-19 07:37:39,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:37:39,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad33f7a-5e00-4c51-b65f-ffc4f4c266b8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:39,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad33f7a-5e00-4c51-b65f-ffc4f4c266b8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:39,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad33f7a-5e00-4c51-b65f-ffc4f4c266b8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:37:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:37:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:37:39,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:37:39,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:37:39,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:37:39,602 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2023-11-19 07:37:39,602 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2023-11-19 07:37:39,604 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 07:37:39,605 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 07:37:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 07:37:39,605 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 07:37:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 07:37:39,605 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 07:37:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:37:39,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:37:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:37:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:37:39,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:37:39,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:37:39,608 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 07:37:39,792 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:37:39,794 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:37:40,019 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:37:40,038 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:37:40,038 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:37:40,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:40 BoogieIcfgContainer [2023-11-19 07:37:40,042 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:37:40,045 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:37:40,045 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:37:40,049 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:37:40,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:37:38" (1/3) ... [2023-11-19 07:37:40,050 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5c5144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:40, skipping insertion in model container [2023-11-19 07:37:40,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:39" (2/3) ... [2023-11-19 07:37:40,050 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5c5144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:40, skipping insertion in model container [2023-11-19 07:37:40,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:40" (3/3) ... [2023-11-19 07:37:40,052 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2023-11-19 07:37:40,061 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:37:40,072 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:37:40,072 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:37:40,072 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:37:40,275 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2023-11-19 07:37:40,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 206 places, 197 transitions, 491 flow [2023-11-19 07:37:40,401 INFO L124 PetriNetUnfolderBase]: 7/134 cut-off events. [2023-11-19 07:37:40,401 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 07:37:40,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 134 events. 7/134 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 116. Up to 3 conditions per place. [2023-11-19 07:37:40,408 INFO L82 GeneralOperation]: Start removeDead. Operand has 206 places, 197 transitions, 491 flow [2023-11-19 07:37:40,415 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 133 places, 120 transitions, 291 flow [2023-11-19 07:37:40,419 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:37:40,429 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 120 transitions, 291 flow [2023-11-19 07:37:40,432 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 120 transitions, 291 flow [2023-11-19 07:37:40,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 133 places, 120 transitions, 291 flow [2023-11-19 07:37:40,480 INFO L124 PetriNetUnfolderBase]: 6/120 cut-off events. [2023-11-19 07:37:40,481 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 07:37:40,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 120 events. 6/120 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 50 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2023-11-19 07:37:40,484 INFO L119 LiptonReduction]: Number of co-enabled transitions 1344 [2023-11-19 07:37:44,220 INFO L134 LiptonReduction]: Checked pairs total: 3003 [2023-11-19 07:37:44,221 INFO L136 LiptonReduction]: Total number of compositions: 84 [2023-11-19 07:37:44,236 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:37:44,243 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;@1aaecda4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:37:44,243 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-19 07:37:44,257 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:37:44,258 INFO L124 PetriNetUnfolderBase]: 5/40 cut-off events. [2023-11-19 07:37:44,258 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 07:37:44,258 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:44,259 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:44,259 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2023-11-19 07:37:44,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:44,264 INFO L85 PathProgramCache]: Analyzing trace with hash 560443895, now seen corresponding path program 1 times [2023-11-19 07:37:44,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:44,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831702357] [2023-11-19 07:37:44,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:44,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:44,965 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 07:37:44,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:44,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831702357] [2023-11-19 07:37:44,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831702357] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:44,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:44,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:37:44,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022055186] [2023-11-19 07:37:44,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:44,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:37:44,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:45,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:37:45,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:45,065 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 283 [2023-11-19 07:37:45,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 41 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 159.33333333333334) internal successors, (478), 3 states have internal predecessors, (478), 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 07:37:45,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:45,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 283 [2023-11-19 07:37:45,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:45,381 INFO L124 PetriNetUnfolderBase]: 446/770 cut-off events. [2023-11-19 07:37:45,382 INFO L125 PetriNetUnfolderBase]: For 146/156 co-relation queries the response was YES. [2023-11-19 07:37:45,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1674 conditions, 770 events. 446/770 cut-off events. For 146/156 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2783 event pairs, 216 based on Foata normal form. 11/727 useless extension candidates. Maximal degree in co-relation 1652. Up to 518 conditions per place. [2023-11-19 07:37:45,397 INFO L140 encePairwiseOnDemand]: 276/283 looper letters, 42 selfloop transitions, 6 changer transitions 4/60 dead transitions. [2023-11-19 07:37:45,397 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 60 transitions, 308 flow [2023-11-19 07:37:45,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:37:45,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:37:45,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 503 transitions. [2023-11-19 07:37:45,424 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5924617196702002 [2023-11-19 07:37:45,425 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 503 transitions. [2023-11-19 07:37:45,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 503 transitions. [2023-11-19 07:37:45,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:45,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 503 transitions. [2023-11-19 07:37:45,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 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 07:37:45,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 283.0) internal successors, (1132), 4 states have internal predecessors, (1132), 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 07:37:45,446 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 283.0) internal successors, (1132), 4 states have internal predecessors, (1132), 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 07:37:45,448 INFO L175 Difference]: Start difference. First operand has 55 places, 41 transitions, 133 flow. Second operand 3 states and 503 transitions. [2023-11-19 07:37:45,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 60 transitions, 308 flow [2023-11-19 07:37:45,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 60 transitions, 252 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-11-19 07:37:45,461 INFO L231 Difference]: Finished difference. Result has 46 places, 46 transitions, 139 flow [2023-11-19 07:37:45,464 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=139, PETRI_PLACES=46, PETRI_TRANSITIONS=46} [2023-11-19 07:37:45,467 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -9 predicate places. [2023-11-19 07:37:45,467 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 46 transitions, 139 flow [2023-11-19 07:37:45,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.33333333333334) internal successors, (478), 3 states have internal predecessors, (478), 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 07:37:45,468 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:45,468 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:45,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:37:45,469 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 9 more)] === [2023-11-19 07:37:45,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:45,470 INFO L85 PathProgramCache]: Analyzing trace with hash 554827399, now seen corresponding path program 2 times [2023-11-19 07:37:45,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:45,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792119300] [2023-11-19 07:37:45,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:45,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:45,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:45,676 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 07:37:45,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:45,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792119300] [2023-11-19 07:37:45,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792119300] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:45,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:45,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:37:45,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590814153] [2023-11-19 07:37:45,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:45,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:37:45,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:45,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:37:45,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:45,740 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 283 [2023-11-19 07:37:45,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 46 transitions, 139 flow. Second operand has 3 states, 3 states have (on average 159.33333333333334) internal successors, (478), 3 states have internal predecessors, (478), 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 07:37:45,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:45,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 283 [2023-11-19 07:37:45,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:45,954 INFO L124 PetriNetUnfolderBase]: 579/1012 cut-off events. [2023-11-19 07:37:45,954 INFO L125 PetriNetUnfolderBase]: For 354/358 co-relation queries the response was YES. [2023-11-19 07:37:45,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2521 conditions, 1012 events. 579/1012 cut-off events. For 354/358 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4081 event pairs, 147 based on Foata normal form. 5/949 useless extension candidates. Maximal degree in co-relation 1100. Up to 493 conditions per place. [2023-11-19 07:37:45,958 INFO L140 encePairwiseOnDemand]: 275/283 looper letters, 0 selfloop transitions, 0 changer transitions 67/67 dead transitions. [2023-11-19 07:37:45,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 67 transitions, 322 flow [2023-11-19 07:37:45,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:37:45,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:37:45,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 505 transitions. [2023-11-19 07:37:45,961 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5948174322732627 [2023-11-19 07:37:45,961 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 505 transitions. [2023-11-19 07:37:45,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 505 transitions. [2023-11-19 07:37:45,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:45,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 505 transitions. [2023-11-19 07:37:45,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 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 07:37:45,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 283.0) internal successors, (1132), 4 states have internal predecessors, (1132), 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 07:37:45,968 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 283.0) internal successors, (1132), 4 states have internal predecessors, (1132), 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 07:37:45,968 INFO L175 Difference]: Start difference. First operand has 46 places, 46 transitions, 139 flow. Second operand 3 states and 505 transitions. [2023-11-19 07:37:45,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 67 transitions, 322 flow [2023-11-19 07:37:45,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 67 transitions, 315 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:37:45,975 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2023-11-19 07:37:45,975 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=283, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2023-11-19 07:37:45,976 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -9 predicate places. [2023-11-19 07:37:45,976 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2023-11-19 07:37:45,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.33333333333334) internal successors, (478), 3 states have internal predecessors, (478), 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 07:37:45,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2023-11-19 07:37:45,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 12 remaining) [2023-11-19 07:37:45,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 12 remaining) [2023-11-19 07:37:45,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 12 remaining) [2023-11-19 07:37:45,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 12 remaining) [2023-11-19 07:37:45,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 12 remaining) [2023-11-19 07:37:45,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2023-11-19 07:37:45,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2023-11-19 07:37:45,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 12 remaining) [2023-11-19 07:37:45,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 12 remaining) [2023-11-19 07:37:45,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2023-11-19 07:37:45,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2023-11-19 07:37:45,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:37:45,984 INFO L445 BasicCegarLoop]: Path program histogram: [2] [2023-11-19 07:37:45,987 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:37:45,988 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:37:45,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:37:45 BasicIcfg [2023-11-19 07:37:45,992 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:37:45,993 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:37:45,993 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:37:45,993 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:37:45,994 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:40" (3/4) ... [2023-11-19 07:37:45,996 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:37:45,999 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread0 [2023-11-19 07:37:46,000 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-19 07:37:46,000 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-19 07:37:46,000 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-11-19 07:37:46,004 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-19 07:37:46,004 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 07:37:46,005 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:37:46,005 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:37:46,086 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad33f7a-5e00-4c51-b65f-ffc4f4c266b8/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:37:46,087 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad33f7a-5e00-4c51-b65f-ffc4f4c266b8/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:37:46,087 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:37:46,087 INFO L158 Benchmark]: Toolchain (without parser) took 7614.24ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 118.9MB in the beginning and 52.1MB in the end (delta: 66.8MB). Peak memory consumption was 97.7MB. Max. memory is 16.1GB. [2023-11-19 07:37:46,088 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory is still 98.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:37:46,088 INFO L158 Benchmark]: CACSL2BoogieTranslator took 880.56ms. Allocated memory is still 151.0MB. Free memory was 118.9MB in the beginning and 85.5MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-19 07:37:46,089 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.81ms. Allocated memory is still 151.0MB. Free memory was 84.8MB in the beginning and 82.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:37:46,089 INFO L158 Benchmark]: Boogie Preprocessor took 33.85ms. Allocated memory is still 151.0MB. Free memory was 82.7MB in the beginning and 81.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:37:46,090 INFO L158 Benchmark]: RCFGBuilder took 587.60ms. Allocated memory is still 151.0MB. Free memory was 81.2MB in the beginning and 105.7MB in the end (delta: -24.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 07:37:46,090 INFO L158 Benchmark]: TraceAbstraction took 5947.11ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 105.4MB in the beginning and 56.3MB in the end (delta: 49.1MB). Peak memory consumption was 82.7MB. Max. memory is 16.1GB. [2023-11-19 07:37:46,091 INFO L158 Benchmark]: Witness Printer took 93.97ms. Allocated memory is still 182.5MB. Free memory was 56.3MB in the beginning and 52.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:37:46,093 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory is still 98.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 880.56ms. Allocated memory is still 151.0MB. Free memory was 118.9MB in the beginning and 85.5MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.81ms. Allocated memory is still 151.0MB. Free memory was 84.8MB in the beginning and 82.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.85ms. Allocated memory is still 151.0MB. Free memory was 82.7MB in the beginning and 81.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 587.60ms. Allocated memory is still 151.0MB. Free memory was 81.2MB in the beginning and 105.7MB in the end (delta: -24.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 5947.11ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 105.4MB in the beginning and 56.3MB in the end (delta: 49.1MB). Peak memory consumption was 82.7MB. Max. memory is 16.1GB. * Witness Printer took 93.97ms. Allocated memory is still 182.5MB. Free memory was 56.3MB in the beginning and 52.1MB in the end (delta: 4.2MB). 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: 3.8s, 133 PlacesBefore, 55 PlacesAfterwards, 120 TransitionsBefore, 41 TransitionsAfterwards, 1344 CoEnabledTransitionPairs, 5 FixpointIterations, 23 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 84 TotalNumberOfCompositions, 3003 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2055, independent: 1942, independent conditional: 0, independent unconditional: 1942, dependent: 113, dependent conditional: 0, dependent unconditional: 113, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 720, independent: 680, independent conditional: 0, independent unconditional: 680, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2055, independent: 1262, independent conditional: 0, independent unconditional: 1262, dependent: 73, dependent conditional: 0, dependent unconditional: 73, unknown: 720, unknown conditional: 0, unknown unconditional: 720] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 46, Positive conditional cache size: 0, Positive unconditional cache size: 46, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1123]: 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 11 procedures, 226 locations, 12 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: 5.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 122 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 256 IncrementalHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 26 mSDtfsCounter, 256 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=139occurred in iteration=1, InterpolantAutomatonStates: 6, 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, 0.7s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 172 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 07:37:46,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dad33f7a-5e00-4c51-b65f-ffc4f4c266b8/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