./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 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_74228d4b-cdcb-443d-8fe3-a8cf072fe4f2/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74228d4b-cdcb-443d-8fe3-a8cf072fe4f2/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74228d4b-cdcb-443d-8fe3-a8cf072fe4f2/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74228d4b-cdcb-443d-8fe3-a8cf072fe4f2/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74228d4b-cdcb-443d-8fe3-a8cf072fe4f2/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74228d4b-cdcb-443d-8fe3-a8cf072fe4f2/bin/uautomizer-verify-bycVGegfSx --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 a42fdc99fbc54512a7829bd297e0f02fe251a511098f304812399f6e9de1d8b6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:19:29,712 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:19:29,845 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74228d4b-cdcb-443d-8fe3-a8cf072fe4f2/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:19:29,850 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:19:29,851 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:19:29,880 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:19:29,881 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:19:29,882 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:19:29,883 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:19:29,883 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:19:29,884 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:19:29,885 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:19:29,886 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:19:29,886 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:19:29,887 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:19:29,888 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:19:29,889 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:19:29,889 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:19:29,890 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:19:29,891 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:19:29,908 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:19:29,911 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:19:29,912 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:19:29,912 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:19:29,913 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:19:29,913 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:19:29,914 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:19:29,915 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:19:29,915 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:19:29,916 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:19:29,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:19:29,917 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:19:29,918 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:19:29,918 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:19:29,931 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:19:29,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:19:29,932 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:19:29,933 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:19:29,933 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:19:29,934 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:19:29,934 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:19:29,936 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_74228d4b-cdcb-443d-8fe3-a8cf072fe4f2/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74228d4b-cdcb-443d-8fe3-a8cf072fe4f2/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a42fdc99fbc54512a7829bd297e0f02fe251a511098f304812399f6e9de1d8b6 [2023-11-21 22:19:30,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:19:30,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:19:30,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:19:30,303 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:19:30,304 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:19:30,306 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74228d4b-cdcb-443d-8fe3-a8cf072fe4f2/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c [2023-11-21 22:19:33,551 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:19:33,829 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:19:33,830 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74228d4b-cdcb-443d-8fe3-a8cf072fe4f2/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c [2023-11-21 22:19:33,843 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74228d4b-cdcb-443d-8fe3-a8cf072fe4f2/bin/uautomizer-verify-bycVGegfSx/data/d8adb6090/8be4ea34482e4e31903bb5a950cdbea2/FLAG6eaf6b054 [2023-11-21 22:19:33,859 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74228d4b-cdcb-443d-8fe3-a8cf072fe4f2/bin/uautomizer-verify-bycVGegfSx/data/d8adb6090/8be4ea34482e4e31903bb5a950cdbea2 [2023-11-21 22:19:33,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:19:33,864 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:19:33,865 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:19:33,865 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:19:33,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:19:33,872 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:19:33" (1/1) ... [2023-11-21 22:19:33,873 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71f487a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:33, skipping insertion in model container [2023-11-21 22:19:33,874 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:19:33" (1/1) ... [2023-11-21 22:19:33,909 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:19:34,209 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:19:34,223 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:19:34,360 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:19:34,372 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:19:34,373 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:19:34,383 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:19:34,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34 WrapperNode [2023-11-21 22:19:34,384 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:19:34,386 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:19:34,386 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:19:34,386 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:19:34,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34" (1/1) ... [2023-11-21 22:19:34,418 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34" (1/1) ... [2023-11-21 22:19:34,506 INFO L138 Inliner]: procedures = 23, calls = 177, calls flagged for inlining = 29, calls inlined = 29, statements flattened = 1086 [2023-11-21 22:19:34,507 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:19:34,508 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:19:34,508 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:19:34,508 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:19:34,528 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34" (1/1) ... [2023-11-21 22:19:34,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34" (1/1) ... [2023-11-21 22:19:34,540 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34" (1/1) ... [2023-11-21 22:19:34,541 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34" (1/1) ... [2023-11-21 22:19:34,570 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34" (1/1) ... [2023-11-21 22:19:34,578 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34" (1/1) ... [2023-11-21 22:19:34,582 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34" (1/1) ... [2023-11-21 22:19:34,587 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34" (1/1) ... [2023-11-21 22:19:34,595 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:19:34,597 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:19:34,597 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:19:34,597 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:19:34,598 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34" (1/1) ... [2023-11-21 22:19:34,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:19:34,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74228d4b-cdcb-443d-8fe3-a8cf072fe4f2/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:34,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74228d4b-cdcb-443d-8fe3-a8cf072fe4f2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:34,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74228d4b-cdcb-443d-8fe3-a8cf072fe4f2/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:19:34,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:19:34,733 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 22:19:34,733 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 22:19:34,733 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 22:19:34,734 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 22:19:34,734 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-21 22:19:34,734 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-21 22:19:34,735 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-21 22:19:34,735 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-21 22:19:34,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:19:34,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:19:34,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:19:34,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 22:19:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 22:19:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:19:34,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:19:34,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:19:34,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:19:34,743 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:19:35,000 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:19:35,014 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:19:36,896 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:19:37,844 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:19:37,844 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:19:37,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:19:37 BoogieIcfgContainer [2023-11-21 22:19:37,846 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:19:37,849 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:19:37,849 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:19:37,852 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:19:37,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:19:33" (1/3) ... [2023-11-21 22:19:37,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c027d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:19:37, skipping insertion in model container [2023-11-21 22:19:37,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:34" (2/3) ... [2023-11-21 22:19:37,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c027d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:19:37, skipping insertion in model container [2023-11-21 22:19:37,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:19:37" (3/3) ... [2023-11-21 22:19:37,855 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-4.wvr.c [2023-11-21 22:19:37,865 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:19:37,876 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:19:37,877 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 195 error locations. [2023-11-21 22:19:37,877 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:19:38,067 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-21 22:19:38,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 547 places, 545 transitions, 1118 flow [2023-11-21 22:19:38,413 INFO L124 PetriNetUnfolderBase]: 11/541 cut-off events. [2023-11-21 22:19:38,413 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-21 22:19:38,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 558 conditions, 541 events. 11/541 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1410 event pairs, 0 based on Foata normal form. 0/335 useless extension candidates. Maximal degree in co-relation 420. Up to 2 conditions per place. [2023-11-21 22:19:38,428 INFO L82 GeneralOperation]: Start removeDead. Operand has 547 places, 545 transitions, 1118 flow [2023-11-21 22:19:38,458 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 519 places, 516 transitions, 1056 flow [2023-11-21 22:19:38,474 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:19:38,485 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;@24ef5946, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:19:38,485 INFO L358 AbstractCegarLoop]: Starting to check reachability of 367 error locations. [2023-11-21 22:19:38,492 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:19:38,493 INFO L124 PetriNetUnfolderBase]: 0/29 cut-off events. [2023-11-21 22:19:38,493 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:19:38,493 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:19:38,494 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] [2023-11-21 22:19:38,495 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err4ASSERT_VIOLATIONDATA_RACE (and 363 more)] === [2023-11-21 22:19:38,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:38,503 INFO L85 PathProgramCache]: Analyzing trace with hash 91441700, now seen corresponding path program 1 times [2023-11-21 22:19:38,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:38,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627130121] [2023-11-21 22:19:38,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:38,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:38,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:38,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:38,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:38,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627130121] [2023-11-21 22:19:38,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627130121] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:38,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:38,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:19:38,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692333960] [2023-11-21 22:19:38,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:38,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:19:38,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:38,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:19:38,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:19:38,933 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 545 [2023-11-21 22:19:38,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 519 places, 516 transitions, 1056 flow. Second operand has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 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) [2023-11-21 22:19:38,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:19:38,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 545 [2023-11-21 22:19:38,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand