./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e84cded-7378-4ded-8c1a-597c03397888/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e84cded-7378-4ded-8c1a-597c03397888/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e84cded-7378-4ded-8c1a-597c03397888/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e84cded-7378-4ded-8c1a-597c03397888/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e84cded-7378-4ded-8c1a-597c03397888/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e84cded-7378-4ded-8c1a-597c03397888/bin/uautomizer-verify-uTZkv6EMXl --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 e9184a10f76289bc351ce16b4243b6d0e46782fe8318237a8a819d2b43a92673 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:14:04,373 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:14:04,448 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e84cded-7378-4ded-8c1a-597c03397888/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:14:04,454 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:14:04,455 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:14:04,480 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:14:04,481 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:14:04,482 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:14:04,483 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:14:04,484 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:14:04,484 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:14:04,485 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:14:04,486 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:14:04,486 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:14:04,487 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:14:04,487 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:14:04,488 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:14:04,488 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:14:04,489 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:14:04,489 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:14:04,490 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:14:04,491 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:14:04,492 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:14:04,492 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:14:04,493 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:14:04,493 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:14:04,494 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:14:04,494 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:14:04,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:14:04,495 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:14:04,496 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:14:04,497 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:14:04,497 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:14:04,498 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:14:04,498 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:14:04,498 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:14:04,498 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:14:04,499 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:14:04,499 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:14:04,499 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_0e84cded-7378-4ded-8c1a-597c03397888/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e84cded-7378-4ded-8c1a-597c03397888/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9184a10f76289bc351ce16b4243b6d0e46782fe8318237a8a819d2b43a92673 [2023-11-12 02:14:04,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:14:04,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:14:04,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:14:04,823 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:14:04,824 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:14:04,825 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e84cded-7378-4ded-8c1a-597c03397888/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c [2023-11-12 02:14:08,132 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:14:08,401 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:14:08,401 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e84cded-7378-4ded-8c1a-597c03397888/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c [2023-11-12 02:14:08,413 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e84cded-7378-4ded-8c1a-597c03397888/bin/uautomizer-verify-uTZkv6EMXl/data/483e60f10/2b77b6fdfc0c4965bb70ccec7ea72bb8/FLAGfdb4ec30b [2023-11-12 02:14:08,433 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e84cded-7378-4ded-8c1a-597c03397888/bin/uautomizer-verify-uTZkv6EMXl/data/483e60f10/2b77b6fdfc0c4965bb70ccec7ea72bb8 [2023-11-12 02:14:08,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:14:08,441 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:14:08,446 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:14:08,447 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:14:08,452 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:14:08,455 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:14:08" (1/1) ... [2023-11-12 02:14:08,456 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dc737fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:08, skipping insertion in model container [2023-11-12 02:14:08,456 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:14:08" (1/1) ... [2023-11-12 02:14:08,505 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:14:08,730 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_0e84cded-7378-4ded-8c1a-597c03397888/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c[5378,5391] [2023-11-12 02:14:08,737 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:14:08,748 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:14:08,787 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_0e84cded-7378-4ded-8c1a-597c03397888/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c[5378,5391] [2023-11-12 02:14:08,789 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:14:08,799 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:14:08,799 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:14:08,808 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:14:08,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:08 WrapperNode [2023-11-12 02:14:08,808 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:14:08,810 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:14:08,810 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:14:08,810 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:14:08,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:08" (1/1) ... [2023-11-12 02:14:08,831 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:08" (1/1) ... [2023-11-12 02:14:08,873 INFO L138 Inliner]: procedures = 27, calls = 130, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 377 [2023-11-12 02:14:08,874 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:14:08,875 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:14:08,875 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:14:08,875 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:14:08,886 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:08" (1/1) ... [2023-11-12 02:14:08,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:08" (1/1) ... [2023-11-12 02:14:08,892 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:08" (1/1) ... [2023-11-12 02:14:08,893 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:08" (1/1) ... [2023-11-12 02:14:08,904 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:08" (1/1) ... [2023-11-12 02:14:08,907 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:08" (1/1) ... [2023-11-12 02:14:08,911 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:08" (1/1) ... [2023-11-12 02:14:08,913 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:08" (1/1) ... [2023-11-12 02:14:08,919 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:14:08,920 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:14:08,920 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:14:08,920 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:14:08,921 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:08" (1/1) ... [2023-11-12 02:14:08,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:14:08,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e84cded-7378-4ded-8c1a-597c03397888/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:08,970 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e84cded-7378-4ded-8c1a-597c03397888/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:09,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e84cded-7378-4ded-8c1a-597c03397888/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:14:09,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:14:09,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:14:09,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:14:09,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:14:09,022 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 02:14:09,023 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 02:14:09,023 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 02:14:09,023 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 02:14:09,023 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-12 02:14:09,023 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-12 02:14:09,023 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-12 02:14:09,024 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-12 02:14:09,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:14:09,024 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-12 02:14:09,024 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-12 02:14:09,024 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-11-12 02:14:09,024 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-11-12 02:14:09,025 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2023-11-12 02:14:09,025 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2023-11-12 02:14:09,025 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2023-11-12 02:14:09,025 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2023-11-12 02:14:09,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:14:09,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:14:09,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:14:09,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:14:09,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:14:09,028 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:14:09,210 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:14:09,214 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:14:09,897 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:14:10,077 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:14:10,077 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:14:10,081 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:14:10 BoogieIcfgContainer [2023-11-12 02:14:10,082 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:14:10,085 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:14:10,085 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:14:10,089 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:14:10,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:14:08" (1/3) ... [2023-11-12 02:14:10,090 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129c86ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:14:10, skipping insertion in model container [2023-11-12 02:14:10,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:08" (2/3) ... [2023-11-12 02:14:10,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129c86ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:14:10, skipping insertion in model container [2023-11-12 02:14:10,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:14:10" (3/3) ... [2023-11-12 02:14:10,093 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-8.wvr.c [2023-11-12 02:14:10,103 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:14:10,115 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:14:10,115 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:14:10,116 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:14:10,234 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-11-12 02:14:10,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 273 places, 250 transitions, 556 flow [2023-11-12 02:14:10,433 INFO L124 PetriNetUnfolderBase]: 2/242 cut-off events. [2023-11-12 02:14:10,433 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-12 02:14:10,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 242 events. 2/242 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 130 event pairs, 0 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 192. Up to 2 conditions per place. [2023-11-12 02:14:10,442 INFO L82 GeneralOperation]: Start removeDead. Operand has 273 places, 250 transitions, 556 flow [2023-11-12 02:14:10,455 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 244 places, 221 transitions, 490 flow [2023-11-12 02:14:10,459 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:14:10,477 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 244 places, 221 transitions, 490 flow [2023-11-12 02:14:10,481 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 244 places, 221 transitions, 490 flow [2023-11-12 02:14:10,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 244 places, 221 transitions, 490 flow [2023-11-12 02:14:10,562 INFO L124 PetriNetUnfolderBase]: 2/221 cut-off events. [2023-11-12 02:14:10,563 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-12 02:14:10,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 221 events. 2/221 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 129 event pairs, 0 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 192. Up to 2 conditions per place. [2023-11-12 02:14:10,569 INFO L119 LiptonReduction]: Number of co-enabled transitions 6796 [2023-11-12 02:14:27,380 INFO L134 LiptonReduction]: Checked pairs total: 31431 [2023-11-12 02:14:27,381 INFO L136 LiptonReduction]: Total number of compositions: 165 [2023-11-12 02:14:27,396 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:14:27,403 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;@d5b14cc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:14:27,403 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-12 02:14:27,423 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:14:27,423 INFO L124 PetriNetUnfolderBase]: 0/65 cut-off events. [2023-11-12 02:14:27,423 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-12 02:14:27,423 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:14:27,424 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, 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] [2023-11-12 02:14:27,425 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-12 02:14:27,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:27,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1981848014, now seen corresponding path program 1 times [2023-11-12 02:14:27,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:14:27,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869604925] [2023-11-12 02:14:27,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:14:27,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:14:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:30,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:14:30,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:14:30,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869604925] [2023-11-12 02:14:30,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869604925] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:14:30,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:14:30,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:14:30,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760793671] [2023-11-12 02:14:30,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:14:30,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:14:30,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:14:30,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:14:30,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:14:30,476 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 415 [2023-11-12 02:14:30,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 66 transitions, 180 flow. Second operand has 6 states, 6 states have (on average 205.0) internal successors, (1230), 6 states have internal predecessors, (1230), 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) [2023-11-12 02:14:30,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:14:30,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 415 [2023-11-12 02:14:30,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand