./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_75951db0-2968-4164-8f7e-d78e5a8c3dfc/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75951db0-2968-4164-8f7e-d78e5a8c3dfc/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75951db0-2968-4164-8f7e-d78e5a8c3dfc/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75951db0-2968-4164-8f7e-d78e5a8c3dfc/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75951db0-2968-4164-8f7e-d78e5a8c3dfc/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75951db0-2968-4164-8f7e-d78e5a8c3dfc/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e9184a10f76289bc351ce16b4243b6d0e46782fe8318237a8a819d2b43a92673 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:47:59,157 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:47:59,268 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75951db0-2968-4164-8f7e-d78e5a8c3dfc/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-19 04:47:59,275 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:47:59,276 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:47:59,313 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:47:59,313 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:47:59,314 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:47:59,315 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:47:59,320 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:47:59,320 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:47:59,321 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:47:59,321 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:47:59,323 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:47:59,323 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:47:59,324 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:47:59,324 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:47:59,325 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:47:59,325 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:47:59,325 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:47:59,326 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:47:59,326 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:47:59,328 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:47:59,328 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:47:59,328 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:47:59,329 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:47:59,329 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:47:59,330 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:47:59,330 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:47:59,330 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:47:59,332 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:47:59,332 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:47:59,332 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:47:59,333 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:47:59,333 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:47:59,333 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:47:59,333 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:47:59,334 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:47:59,334 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:47:59,334 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:47:59,334 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:47:59,335 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:47:59,335 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:47:59,335 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:47:59,336 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:47:59,336 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:47:59,336 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:47:59,336 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_75951db0-2968-4164-8f7e-d78e5a8c3dfc/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75951db0-2968-4164-8f7e-d78e5a8c3dfc/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9184a10f76289bc351ce16b4243b6d0e46782fe8318237a8a819d2b43a92673 [2023-11-19 04:47:59,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:47:59,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:47:59,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:47:59,695 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:47:59,695 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:47:59,697 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75951db0-2968-4164-8f7e-d78e5a8c3dfc/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c [2023-11-19 04:48:02,763 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:48:02,957 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:48:02,958 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75951db0-2968-4164-8f7e-d78e5a8c3dfc/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c [2023-11-19 04:48:02,966 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75951db0-2968-4164-8f7e-d78e5a8c3dfc/bin/utaipan-verify-t7M7D8N6sZ/data/d86e248c4/acd4aadf96f249868e2f6da44c83ca01/FLAG92ce74548 [2023-11-19 04:48:02,980 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75951db0-2968-4164-8f7e-d78e5a8c3dfc/bin/utaipan-verify-t7M7D8N6sZ/data/d86e248c4/acd4aadf96f249868e2f6da44c83ca01 [2023-11-19 04:48:02,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:48:02,984 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:48:02,985 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:48:02,985 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:48:02,990 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:48:02,991 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:48:02" (1/1) ... [2023-11-19 04:48:02,992 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@431b7dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:02, skipping insertion in model container [2023-11-19 04:48:02,993 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:48:02" (1/1) ... [2023-11-19 04:48:03,023 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:48:03,303 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:48:03,317 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:48:03,356 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:48:03,365 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:48:03,366 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:48:03,374 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:48:03,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:03 WrapperNode [2023-11-19 04:48:03,374 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:48:03,376 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:48:03,376 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:48:03,376 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:48:03,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:03" (1/1) ... [2023-11-19 04:48:03,397 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:03" (1/1) ... [2023-11-19 04:48:03,441 INFO L138 Inliner]: procedures = 27, calls = 131, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 411 [2023-11-19 04:48:03,441 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:48:03,442 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:48:03,442 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:48:03,442 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:48:03,452 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:03" (1/1) ... [2023-11-19 04:48:03,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:03" (1/1) ... [2023-11-19 04:48:03,458 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:03" (1/1) ... [2023-11-19 04:48:03,459 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:03" (1/1) ... [2023-11-19 04:48:03,471 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:03" (1/1) ... [2023-11-19 04:48:03,474 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:03" (1/1) ... [2023-11-19 04:48:03,477 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:03" (1/1) ... [2023-11-19 04:48:03,479 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:03" (1/1) ... [2023-11-19 04:48:03,485 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:48:03,486 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:48:03,486 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:48:03,486 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:48:03,487 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:03" (1/1) ... [2023-11-19 04:48:03,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:48:03,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75951db0-2968-4164-8f7e-d78e5a8c3dfc/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:48:03,538 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75951db0-2968-4164-8f7e-d78e5a8c3dfc/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:48:03,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75951db0-2968-4164-8f7e-d78e5a8c3dfc/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:48:03,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:48:03,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:48:03,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:48:03,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:48:03,605 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 04:48:03,607 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 04:48:03,608 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 04:48:03,608 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 04:48:03,608 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 04:48:03,609 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 04:48:03,609 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-19 04:48:03,609 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-19 04:48:03,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:48:03,609 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-19 04:48:03,609 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-19 04:48:03,610 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-11-19 04:48:03,610 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-11-19 04:48:03,611 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2023-11-19 04:48:03,611 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2023-11-19 04:48:03,611 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2023-11-19 04:48:03,612 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2023-11-19 04:48:03,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 04:48:03,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 04:48:03,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:48:03,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:48:03,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:48:03,616 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 04:48:03,780 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:48:03,782 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:48:04,409 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:48:04,621 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:48:04,621 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:48:04,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:48:04 BoogieIcfgContainer [2023-11-19 04:48:04,634 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:48:04,637 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:48:04,637 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:48:04,641 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:48:04,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:48:02" (1/3) ... [2023-11-19 04:48:04,643 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fb9d4d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:48:04, skipping insertion in model container [2023-11-19 04:48:04,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:03" (2/3) ... [2023-11-19 04:48:04,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fb9d4d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:48:04, skipping insertion in model container [2023-11-19 04:48:04,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:48:04" (3/3) ... [2023-11-19 04:48:04,647 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-8.wvr.c [2023-11-19 04:48:04,656 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 04:48:04,667 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:48:04,668 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-11-19 04:48:04,668 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 04:48:04,863 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-11-19 04:48:04,908 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 04:48:04,921 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 307 places, 284 transitions, 624 flow [2023-11-19 04:48:04,924 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 307 places, 284 transitions, 624 flow [2023-11-19 04:48:04,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 307 places, 284 transitions, 624 flow [2023-11-19 04:48:05,085 INFO L124 PetriNetUnfolderBase]: 2/276 cut-off events. [2023-11-19 04:48:05,085 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-19 04:48:05,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 309 conditions, 276 events. 2/276 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 261 event pairs, 0 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 220. Up to 2 conditions per place. [2023-11-19 04:48:05,106 INFO L119 LiptonReduction]: Number of co-enabled transitions 13092 [2023-11-19 04:48:26,242 INFO L134 LiptonReduction]: Checked pairs total: 57629 [2023-11-19 04:48:26,242 INFO L136 LiptonReduction]: Total number of compositions: 236 [2023-11-19 04:48:26,251 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 123 places, 98 transitions, 252 flow