./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races 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_7f4e49a3-e09e-4e7d-8904-25a8ec00b363/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4e49a3-e09e-4e7d-8904-25a8ec00b363/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_7f4e49a3-e09e-4e7d-8904-25a8ec00b363/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4e49a3-e09e-4e7d-8904-25a8ec00b363/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4e49a3-e09e-4e7d-8904-25a8ec00b363/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4e49a3-e09e-4e7d-8904-25a8ec00b363/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 32482febe38d61a93fd0705f3ad97c9c1ccc991b1238f75e4d1dd99bfb01c35e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:17:01,662 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:17:01,742 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4e49a3-e09e-4e7d-8904-25a8ec00b363/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-12 02:17:01,747 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:17:01,748 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:17:01,787 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:17:01,788 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:17:01,788 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:17:01,789 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:17:01,790 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:17:01,795 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:17:01,796 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:17:01,797 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:17:01,802 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:17:01,803 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:17:01,803 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:17:01,805 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:17:01,805 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:17:01,806 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:17:01,806 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:17:01,807 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:17:01,807 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:17:01,808 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 02:17:01,808 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:17:01,809 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:17:01,809 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:17:01,810 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:17:01,811 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:17:01,811 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:17:01,812 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:17:01,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:17:01,814 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:17:01,814 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:17:01,829 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:17:01,829 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:17:01,829 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:17:01,829 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:17:01,830 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:17:01,830 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:17:01,830 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:17:01,831 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:17:01,831 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_7f4e49a3-e09e-4e7d-8904-25a8ec00b363/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4e49a3-e09e-4e7d-8904-25a8ec00b363/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32482febe38d61a93fd0705f3ad97c9c1ccc991b1238f75e4d1dd99bfb01c35e [2023-11-12 02:17:02,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:17:02,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:17:02,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:17:02,214 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:17:02,215 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:17:02,216 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4e49a3-e09e-4e7d-8904-25a8ec00b363/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i [2023-11-12 02:17:05,467 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:17:05,903 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:17:05,904 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4e49a3-e09e-4e7d-8904-25a8ec00b363/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i [2023-11-12 02:17:05,929 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4e49a3-e09e-4e7d-8904-25a8ec00b363/bin/uautomizer-verify-uTZkv6EMXl/data/9deab5796/0640b175a025452d96fe6b20e32eca0d/FLAGd8703dc12 [2023-11-12 02:17:05,948 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4e49a3-e09e-4e7d-8904-25a8ec00b363/bin/uautomizer-verify-uTZkv6EMXl/data/9deab5796/0640b175a025452d96fe6b20e32eca0d [2023-11-12 02:17:05,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:17:05,957 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:17:05,965 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:17:05,965 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:17:05,980 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:17:05,984 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:17:05" (1/1) ... [2023-11-12 02:17:05,986 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b45283a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:05, skipping insertion in model container [2023-11-12 02:17:05,986 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:17:05" (1/1) ... [2023-11-12 02:17:06,069 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:17:06,221 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 02:17:06,692 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:17:06,707 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:17:06,721 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 02:17:06,797 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:17:06,877 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:17:06,886 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:17:06,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:06 WrapperNode [2023-11-12 02:17:06,887 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:17:06,891 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:17:06,891 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:17:06,891 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:17:06,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:06" (1/1) ... [2023-11-12 02:17:06,954 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:06" (1/1) ... [2023-11-12 02:17:07,088 INFO L138 Inliner]: procedures = 278, calls = 112, calls flagged for inlining = 27, calls inlined = 29, statements flattened = 980 [2023-11-12 02:17:07,088 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:17:07,089 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:17:07,089 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:17:07,089 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:17:07,100 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:06" (1/1) ... [2023-11-12 02:17:07,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:06" (1/1) ... [2023-11-12 02:17:07,145 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:06" (1/1) ... [2023-11-12 02:17:07,146 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:06" (1/1) ... [2023-11-12 02:17:07,227 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:06" (1/1) ... [2023-11-12 02:17:07,236 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:06" (1/1) ... [2023-11-12 02:17:07,243 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:06" (1/1) ... [2023-11-12 02:17:07,250 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:06" (1/1) ... [2023-11-12 02:17:07,264 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:17:07,265 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:17:07,265 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:17:07,266 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:17:07,307 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:06" (1/1) ... [2023-11-12 02:17:07,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:17:07,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4e49a3-e09e-4e7d-8904-25a8ec00b363/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:07,380 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4e49a3-e09e-4e7d-8904-25a8ec00b363/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:17:07,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f4e49a3-e09e-4e7d-8904-25a8ec00b363/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:17:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2023-11-12 02:17:07,433 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2023-11-12 02:17:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:17:07,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:17:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:17:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:17:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:17:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:17:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:17:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:17:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:17:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:17:07,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:17:07,440 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 02:17:07,671 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:17:07,673 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:17:09,466 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:17:09,483 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:17:09,483 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 02:17:09,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:17:09 BoogieIcfgContainer [2023-11-12 02:17:09,487 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:17:09,491 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:17:09,491 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:17:09,494 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:17:09,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:17:05" (1/3) ... [2023-11-12 02:17:09,495 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eae6111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:17:09, skipping insertion in model container [2023-11-12 02:17:09,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:06" (2/3) ... [2023-11-12 02:17:09,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eae6111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:17:09, skipping insertion in model container [2023-11-12 02:17:09,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:17:09" (3/3) ... [2023-11-12 02:17:09,498 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo-bug_1w1r.i [2023-11-12 02:17:09,507 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:17:09,519 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:17:09,520 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 99 error locations. [2023-11-12 02:17:09,520 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:17:09,749 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-12 02:17:09,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1138 places, 1178 transitions, 2363 flow [2023-11-12 02:17:10,604 INFO L124 PetriNetUnfolderBase]: 44/1177 cut-off events. [2023-11-12 02:17:10,605 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-12 02:17:10,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1182 conditions, 1177 events. 44/1177 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 3553 event pairs, 0 based on Foata normal form. 0/1034 useless extension candidates. Maximal degree in co-relation 858. Up to 3 conditions per place. [2023-11-12 02:17:10,641 INFO L82 GeneralOperation]: Start removeDead. Operand has 1138 places, 1178 transitions, 2363 flow [2023-11-12 02:17:10,671 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1121 places, 1161 transitions, 2328 flow [2023-11-12 02:17:10,675 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:17:10,694 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1121 places, 1161 transitions, 2328 flow [2023-11-12 02:17:10,699 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1121 places, 1161 transitions, 2328 flow [2023-11-12 02:17:10,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1121 places, 1161 transitions, 2328 flow [2023-11-12 02:17:11,169 INFO L124 PetriNetUnfolderBase]: 44/1161 cut-off events. [2023-11-12 02:17:11,169 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-12 02:17:11,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1166 conditions, 1161 events. 44/1161 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 3445 event pairs, 0 based on Foata normal form. 0/1019 useless extension candidates. Maximal degree in co-relation 858. Up to 3 conditions per place. [2023-11-12 02:17:11,277 INFO L119 LiptonReduction]: Number of co-enabled transitions 232882