./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-1_1-join.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_512c7179-6500-41f6-b831-d338999dae8e/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_512c7179-6500-41f6-b831-d338999dae8e/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_512c7179-6500-41f6-b831-d338999dae8e/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_512c7179-6500-41f6-b831-d338999dae8e/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_1-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_512c7179-6500-41f6-b831-d338999dae8e/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_512c7179-6500-41f6-b831-d338999dae8e/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 ab598119c4148bae0d8b880ae1fca3b30d4f7d9a1b46bb07e7f3565fa04f9e72 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:43:25,416 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:43:25,497 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_512c7179-6500-41f6-b831-d338999dae8e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:43:25,503 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:43:25,503 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:43:25,528 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:43:25,528 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:43:25,529 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:43:25,530 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:43:25,531 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:43:25,531 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:43:25,532 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:43:25,533 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:43:25,533 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:43:25,534 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:43:25,534 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:43:25,535 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:43:25,535 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:43:25,536 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:43:25,537 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:43:25,537 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:43:25,541 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:43:25,541 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:43:25,542 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:43:25,542 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:43:25,543 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:43:25,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:43:25,548 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:43:25,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:43:25,549 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:43:25,549 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:43:25,550 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:43:25,550 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:43:25,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:43:25,551 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:43:25,552 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:43:25,553 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:43:25,553 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:43:25,554 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:43:25,554 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_512c7179-6500-41f6-b831-d338999dae8e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_512c7179-6500-41f6-b831-d338999dae8e/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab598119c4148bae0d8b880ae1fca3b30d4f7d9a1b46bb07e7f3565fa04f9e72 [2023-11-19 07:43:25,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:43:25,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:43:25,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:43:25,920 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:43:25,921 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:43:25,922 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_512c7179-6500-41f6-b831-d338999dae8e/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-races/race-1_1-join.i [2023-11-19 07:43:29,050 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:43:29,464 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:43:29,464 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_512c7179-6500-41f6-b831-d338999dae8e/sv-benchmarks/c/ldv-races/race-1_1-join.i [2023-11-19 07:43:29,492 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_512c7179-6500-41f6-b831-d338999dae8e/bin/uautomizer-verify-uCwYo4JHxu/data/09b7f909b/5edbc585524546bcbc95f1ea7b36fe93/FLAGfda811ef7 [2023-11-19 07:43:29,507 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_512c7179-6500-41f6-b831-d338999dae8e/bin/uautomizer-verify-uCwYo4JHxu/data/09b7f909b/5edbc585524546bcbc95f1ea7b36fe93 [2023-11-19 07:43:29,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:43:29,512 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:43:29,514 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:29,514 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:43:29,520 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:43:29,521 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:29" (1/1) ... [2023-11-19 07:43:29,522 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71467f90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:29, skipping insertion in model container [2023-11-19 07:43:29,523 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:29" (1/1) ... [2023-11-19 07:43:29,595 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:43:30,427 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_512c7179-6500-41f6-b831-d338999dae8e/sv-benchmarks/c/ldv-races/race-1_1-join.i[76068,76081] [2023-11-19 07:43:30,462 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:30,479 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:43:30,568 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_512c7179-6500-41f6-b831-d338999dae8e/sv-benchmarks/c/ldv-races/race-1_1-join.i[76068,76081] [2023-11-19 07:43:30,593 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:30,762 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:43:30,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:30 WrapperNode [2023-11-19 07:43:30,763 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:30,766 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:43:30,767 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:43:30,767 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:43:30,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:30" (1/1) ... [2023-11-19 07:43:30,814 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:30" (1/1) ... [2023-11-19 07:43:30,865 INFO L138 Inliner]: procedures = 480, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 91 [2023-11-19 07:43:30,866 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:43:30,867 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:43:30,867 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:43:30,867 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:43:30,878 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:30" (1/1) ... [2023-11-19 07:43:30,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:30" (1/1) ... [2023-11-19 07:43:30,890 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:30" (1/1) ... [2023-11-19 07:43:30,890 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:30" (1/1) ... [2023-11-19 07:43:30,904 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:30" (1/1) ... [2023-11-19 07:43:30,906 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:30" (1/1) ... [2023-11-19 07:43:30,911 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:30" (1/1) ... [2023-11-19 07:43:30,914 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:30" (1/1) ... [2023-11-19 07:43:30,921 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:43:30,922 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:43:30,923 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:43:30,923 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:43:30,924 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:30" (1/1) ... [2023-11-19 07:43:30,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:43:30,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_512c7179-6500-41f6-b831-d338999dae8e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:30,966 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_512c7179-6500-41f6-b831-d338999dae8e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:43:31,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_512c7179-6500-41f6-b831-d338999dae8e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:43:31,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:43:31,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:43:31,026 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:43:31,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:43:31,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:43:31,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:43:31,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:43:31,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:43:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 07:43:31,028 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 07:43:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:43:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:43:31,030 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 07:43:31,340 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:43:31,342 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:43:31,503 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:43:31,518 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:43:31,520 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:43:31,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:31 BoogieIcfgContainer [2023-11-19 07:43:31,526 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:43:31,530 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:43:31,530 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:43:31,534 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:43:31,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:43:29" (1/3) ... [2023-11-19 07:43:31,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270716a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:31, skipping insertion in model container [2023-11-19 07:43:31,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:30" (2/3) ... [2023-11-19 07:43:31,538 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270716a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:31, skipping insertion in model container [2023-11-19 07:43:31,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:31" (3/3) ... [2023-11-19 07:43:31,540 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2023-11-19 07:43:31,554 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:43:31,567 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:43:31,567 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-19 07:43:31,567 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:43:31,627 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 07:43:31,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 108 transitions, 223 flow [2023-11-19 07:43:31,723 INFO L124 PetriNetUnfolderBase]: 5/121 cut-off events. [2023-11-19 07:43:31,723 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:43:31,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 121 events. 5/121 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 204 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 68. Up to 3 conditions per place. [2023-11-19 07:43:31,729 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 108 transitions, 223 flow [2023-11-19 07:43:31,734 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 93 transitions, 192 flow [2023-11-19 07:43:31,738 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:43:31,749 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 93 transitions, 192 flow [2023-11-19 07:43:31,752 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 93 transitions, 192 flow [2023-11-19 07:43:31,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 93 transitions, 192 flow [2023-11-19 07:43:31,780 INFO L124 PetriNetUnfolderBase]: 2/93 cut-off events. [2023-11-19 07:43:31,781 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:43:31,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 93 events. 2/93 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 93 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2023-11-19 07:43:31,784 INFO L119 LiptonReduction]: Number of co-enabled transitions 578 [2023-11-19 07:43:35,553 INFO L134 LiptonReduction]: Checked pairs total: 508 [2023-11-19 07:43:35,553 INFO L136 LiptonReduction]: Total number of compositions: 107 [2023-11-19 07:43:35,569 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:43:35,575 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;@48ca880c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:43:35,576 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-19 07:43:35,577 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:43:35,577 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 07:43:35,577 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:43:35,578 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:43:35,578 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:43:35,579 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-11-19 07:43:35,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:35,584 INFO L85 PathProgramCache]: Analyzing trace with hash 400, now seen corresponding path program 1 times [2023-11-19 07:43:35,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:35,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717668845] [2023-11-19 07:43:35,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:35,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:35,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:35,818 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 07:43:35,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:35,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717668845] [2023-11-19 07:43:35,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717668845] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:35,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:35,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:43:35,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331192053] [2023-11-19 07:43:35,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:35,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:43:35,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:35,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:43:35,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:43:35,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 215 [2023-11-19 07:43:35,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 10 transitions, 26 flow. Second operand has 2 states, 2 states have (on average 98.5) internal successors, (197), 2 states have internal predecessors, (197), 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 07:43:35,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:43:35,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 215 [2023-11-19 07:43:35,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:43:35,890 INFO L124 PetriNetUnfolderBase]: 1/7 cut-off events. [2023-11-19 07:43:35,891 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:43:35,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20 conditions, 7 events. 1/7 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 1 based on Foata normal form. 1/8 useless extension candidates. Maximal degree in co-relation 8. Up to 8 conditions per place. [2023-11-19 07:43:35,892 INFO L140 encePairwiseOnDemand]: 210/215 looper letters, 0 selfloop transitions, 0 changer transitions 5/5 dead transitions. [2023-11-19 07:43:35,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 5 transitions, 26 flow [2023-11-19 07:43:35,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:43:35,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:43:35,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 206 transitions. [2023-11-19 07:43:35,908 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4790697674418605 [2023-11-19 07:43:35,909 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 206 transitions. [2023-11-19 07:43:35,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 206 transitions. [2023-11-19 07:43:35,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:43:35,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 206 transitions. [2023-11-19 07:43:35,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 103.0) internal successors, (206), 2 states have internal predecessors, (206), 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 07:43:35,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 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 07:43:35,924 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 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 07:43:35,926 INFO L175 Difference]: Start difference. First operand has 14 places, 10 transitions, 26 flow. Second operand 2 states and 206 transitions. [2023-11-19 07:43:35,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 5 transitions, 26 flow [2023-11-19 07:43:35,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 8 places, 5 transitions, 22 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:43:35,930 INFO L231 Difference]: Finished difference. Result has 8 places, 0 transitions, 0 flow [2023-11-19 07:43:35,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=12, PETRI_DIFFERENCE_MINUEND_PLACES=7, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=0, PETRI_PLACES=8, PETRI_TRANSITIONS=0} [2023-11-19 07:43:35,936 INFO L281 CegarLoopForPetriNet]: 14 programPoint places, -6 predicate places. [2023-11-19 07:43:35,936 INFO L495 AbstractCegarLoop]: Abstraction has has 8 places, 0 transitions, 0 flow [2023-11-19 07:43:35,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 98.5) internal successors, (197), 2 states have internal predecessors, (197), 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 07:43:35,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2023-11-19 07:43:35,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2023-11-19 07:43:35,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2023-11-19 07:43:35,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2023-11-19 07:43:35,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2023-11-19 07:43:35,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2023-11-19 07:43:35,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:43:35,942 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 07:43:35,949 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:43:35,949 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:43:35,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:43:35 BasicIcfg [2023-11-19 07:43:35,954 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:43:35,955 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:43:35,955 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:43:35,955 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:43:35,956 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:31" (3/4) ... [2023-11-19 07:43:35,957 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:43:35,961 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-19 07:43:35,967 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-19 07:43:35,968 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 07:43:35,968 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:43:35,969 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:43:36,068 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_512c7179-6500-41f6-b831-d338999dae8e/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:43:36,069 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_512c7179-6500-41f6-b831-d338999dae8e/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:43:36,069 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:43:36,070 INFO L158 Benchmark]: Toolchain (without parser) took 6557.69ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 134.9MB in the beginning and 152.5MB in the end (delta: -17.6MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2023-11-19 07:43:36,071 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 123.7MB. Free memory was 91.8MB in the beginning and 91.6MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:43:36,071 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1249.68ms. Allocated memory is still 174.1MB. Free memory was 134.9MB in the beginning and 94.9MB in the end (delta: 40.0MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-19 07:43:36,074 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.01ms. Allocated memory is still 174.1MB. Free memory was 94.9MB in the beginning and 91.5MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:43:36,074 INFO L158 Benchmark]: Boogie Preprocessor took 54.68ms. Allocated memory is still 174.1MB. Free memory was 91.5MB in the beginning and 88.6MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:43:36,075 INFO L158 Benchmark]: RCFGBuilder took 603.61ms. Allocated memory is still 174.1MB. Free memory was 88.6MB in the beginning and 68.9MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:43:36,075 INFO L158 Benchmark]: TraceAbstraction took 4424.01ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 68.4MB in the beginning and 156.7MB in the end (delta: -88.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:43:36,076 INFO L158 Benchmark]: Witness Printer took 114.44ms. Allocated memory is still 209.7MB. Free memory was 156.7MB in the beginning and 152.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:43:36,078 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 123.7MB. Free memory was 91.8MB in the beginning and 91.6MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1249.68ms. Allocated memory is still 174.1MB. Free memory was 134.9MB in the beginning and 94.9MB in the end (delta: 40.0MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.01ms. Allocated memory is still 174.1MB. Free memory was 94.9MB in the beginning and 91.5MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.68ms. Allocated memory is still 174.1MB. Free memory was 91.5MB in the beginning and 88.6MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 603.61ms. Allocated memory is still 174.1MB. Free memory was 88.6MB in the beginning and 68.9MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4424.01ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 68.4MB in the beginning and 156.7MB in the end (delta: -88.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 114.44ms. Allocated memory is still 209.7MB. Free memory was 156.7MB in the beginning and 152.5MB 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, 95 PlacesBefore, 14 PlacesAfterwards, 93 TransitionsBefore, 10 TransitionsAfterwards, 578 CoEnabledTransitionPairs, 9 FixpointIterations, 62 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 107 TotalNumberOfCompositions, 508 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 508, independent: 508, independent conditional: 0, independent unconditional: 508, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 329, independent: 329, independent conditional: 0, independent unconditional: 329, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 508, independent: 179, independent conditional: 0, independent unconditional: 179, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 329, unknown conditional: 0, unknown unconditional: 329] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: 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, 121 locations, 6 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: 4.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 1 NumberOfCodeBlocks, 1 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 07:43:36,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_512c7179-6500-41f6-b831-d338999dae8e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE