./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c --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_bf0cdaf3-12ce-45a9-a00e-2b50f6714357/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0cdaf3-12ce-45a9-a00e-2b50f6714357/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_bf0cdaf3-12ce-45a9-a00e-2b50f6714357/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0cdaf3-12ce-45a9-a00e-2b50f6714357/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0cdaf3-12ce-45a9-a00e-2b50f6714357/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_bf0cdaf3-12ce-45a9-a00e-2b50f6714357/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 504de2e820c504d0b98f5b71c19407f1b43c0dd9338639fad4f2fe6ea2f6854f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:04:42,405 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:04:42,480 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0cdaf3-12ce-45a9-a00e-2b50f6714357/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-12 02:04:42,484 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:04:42,485 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:04:42,529 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:04:42,530 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:04:42,531 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:04:42,531 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:04:42,532 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:04:42,533 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:04:42,533 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:04:42,534 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:04:42,535 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:04:42,535 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:04:42,536 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:04:42,536 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:04:42,552 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:04:42,553 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:04:42,553 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:04:42,563 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:04:42,564 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:04:42,564 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 02:04:42,565 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:04:42,565 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:04:42,565 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:04:42,566 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:04:42,566 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:04:42,567 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:04:42,567 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:04:42,567 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:04:42,568 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:04:42,568 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:04:42,569 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:04:42,569 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:04:42,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:04:42,570 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:04:42,570 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:04:42,570 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:04:42,571 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:04:42,571 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:04:42,584 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_bf0cdaf3-12ce-45a9-a00e-2b50f6714357/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0cdaf3-12ce-45a9-a00e-2b50f6714357/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 504de2e820c504d0b98f5b71c19407f1b43c0dd9338639fad4f2fe6ea2f6854f [2023-11-12 02:04:42,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:04:42,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:04:42,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:04:42,866 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:04:42,867 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:04:42,868 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0cdaf3-12ce-45a9-a00e-2b50f6714357/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2023-11-12 02:04:46,078 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:04:46,382 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:04:46,382 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0cdaf3-12ce-45a9-a00e-2b50f6714357/sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2023-11-12 02:04:46,391 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0cdaf3-12ce-45a9-a00e-2b50f6714357/bin/uautomizer-verify-uTZkv6EMXl/data/e2a9f54f8/be87b3467f764b1e89b77cb40d709dfb/FLAGe6f79bd3d [2023-11-12 02:04:46,415 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0cdaf3-12ce-45a9-a00e-2b50f6714357/bin/uautomizer-verify-uTZkv6EMXl/data/e2a9f54f8/be87b3467f764b1e89b77cb40d709dfb [2023-11-12 02:04:46,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:04:46,419 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:04:46,421 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:04:46,421 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:04:46,427 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:04:46,428 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:04:46" (1/1) ... [2023-11-12 02:04:46,429 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37d561df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:04:46, skipping insertion in model container [2023-11-12 02:04:46,429 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:04:46" (1/1) ... [2023-11-12 02:04:46,457 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:04:46,686 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:04:46,698 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:04:46,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:04:46,756 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:04:46,756 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:04:46,764 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:04:46,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:04:46 WrapperNode [2023-11-12 02:04:46,769 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:04:46,771 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:04:46,771 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:04:46,771 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:04:46,780 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:04:46" (1/1) ... [2023-11-12 02:04:46,795 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:04:46" (1/1) ... [2023-11-12 02:04:46,842 INFO L138 Inliner]: procedures = 25, calls = 99, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 550 [2023-11-12 02:04:46,853 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:04:46,855 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:04:46,855 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:04:46,855 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:04:46,862 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:04:46" (1/1) ... [2023-11-12 02:04:46,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:04:46" (1/1) ... [2023-11-12 02:04:46,870 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:04:46" (1/1) ... [2023-11-12 02:04:46,870 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:04:46" (1/1) ... [2023-11-12 02:04:46,891 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:04:46" (1/1) ... [2023-11-12 02:04:46,895 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:04:46" (1/1) ... [2023-11-12 02:04:46,899 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:04:46" (1/1) ... [2023-11-12 02:04:46,907 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:04:46" (1/1) ... [2023-11-12 02:04:46,914 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:04:46,929 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:04:46,929 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:04:46,929 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:04:46,930 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:04:46" (1/1) ... [2023-11-12 02:04:46,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:04:46,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0cdaf3-12ce-45a9-a00e-2b50f6714357/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:04:46,990 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0cdaf3-12ce-45a9-a00e-2b50f6714357/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:04:47,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf0cdaf3-12ce-45a9-a00e-2b50f6714357/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:04:47,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:04:47,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:04:47,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:04:47,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:04:47,047 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 02:04:47,049 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 02:04:47,049 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 02:04:47,049 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 02:04:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-12 02:04:47,050 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-12 02:04:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-12 02:04:47,050 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-12 02:04:47,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:04:47,053 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-12 02:04:47,053 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-12 02:04:47,054 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-11-12 02:04:47,054 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-11-12 02:04:47,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:04:47,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:04:47,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:04:47,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:04:47,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:04:47,057 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 02:04:47,253 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:04:47,255 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:04:48,065 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:04:48,393 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:04:48,393 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:04:48,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:04:48 BoogieIcfgContainer [2023-11-12 02:04:48,402 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:04:48,407 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:04:48,407 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:04:48,411 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:04:48,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:04:46" (1/3) ... [2023-11-12 02:04:48,418 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625e3cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:04:48, skipping insertion in model container [2023-11-12 02:04:48,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:04:46" (2/3) ... [2023-11-12 02:04:48,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625e3cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:04:48, skipping insertion in model container [2023-11-12 02:04:48,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:04:48" (3/3) ... [2023-11-12 02:04:48,422 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2023-11-12 02:04:48,432 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:04:48,444 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:04:48,444 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2023-11-12 02:04:48,444 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:04:48,668 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-11-12 02:04:48,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 486 places, 481 transitions, 1028 flow [2023-11-12 02:04:48,980 INFO L124 PetriNetUnfolderBase]: 14/441 cut-off events. [2023-11-12 02:04:48,981 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-12 02:04:48,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 470 conditions, 441 events. 14/441 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 784 event pairs, 0 based on Foata normal form. 0/349 useless extension candidates. Maximal degree in co-relation 368. Up to 3 conditions per place. [2023-11-12 02:04:48,997 INFO L82 GeneralOperation]: Start removeDead. Operand has 486 places, 481 transitions, 1028 flow [2023-11-12 02:04:49,023 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 424 places, 417 transitions, 882 flow [2023-11-12 02:04:49,028 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:04:49,044 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 424 places, 417 transitions, 882 flow [2023-11-12 02:04:49,049 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 424 places, 417 transitions, 882 flow [2023-11-12 02:04:49,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 424 places, 417 transitions, 882 flow [2023-11-12 02:04:49,178 INFO L124 PetriNetUnfolderBase]: 12/417 cut-off events. [2023-11-12 02:04:49,178 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-12 02:04:49,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 446 conditions, 417 events. 12/417 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 759 event pairs, 0 based on Foata normal form. 0/328 useless extension candidates. Maximal degree in co-relation 368. Up to 3 conditions per place. [2023-11-12 02:04:49,208 INFO L119 LiptonReduction]: Number of co-enabled transitions 36288 [2023-11-12 02:05:01,383 INFO L134 LiptonReduction]: Checked pairs total: 380813 [2023-11-12 02:05:01,383 INFO L136 LiptonReduction]: Total number of compositions: 400 [2023-11-12 02:05:01,398 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:05:01,405 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;@24fd6da4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:05:01,405 INFO L358 AbstractCegarLoop]: Starting to check reachability of 144 error locations. [2023-11-12 02:05:01,407 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:05:01,407 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-12 02:05:01,408 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:05:01,408 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:05:01,409 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-12 02:05:01,409 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-12 02:05:01,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:05:01,415 INFO L85 PathProgramCache]: Analyzing trace with hash 2002, now seen corresponding path program 1 times [2023-11-12 02:05:01,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:05:01,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525323276] [2023-11-12 02:05:01,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:05:01,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:05:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:05:01,538 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 02:05:01,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:05:01,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525323276] [2023-11-12 02:05:01,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525323276] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:05:01,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:05:01,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 02:05:01,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272363115] [2023-11-12 02:05:01,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:05:01,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:05:01,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:05:01,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:05:01,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:05:01,583 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 885 [2023-11-12 02:05:01,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 185 transitions, 418 flow. Second operand has 2 states, 2 states have (on average 388.5) internal successors, (777), 2 states have internal predecessors, (777), 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 02:05:01,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:05:01,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 885 [2023-11-12 02:05:01,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:05:25,353 INFO L124 PetriNetUnfolderBase]: 122463/188089 cut-off events. [2023-11-12 02:05:25,353 INFO L125 PetriNetUnfolderBase]: For 20466/31604 co-relation queries the response was YES. [2023-11-12 02:05:26,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359774 conditions, 188089 events. 122463/188089 cut-off events. For 20466/31604 co-relation queries the response was YES. Maximal size of possible extension queue 4020. Compared 1523120 event pairs, 118383 based on Foata normal form. 255/178259 useless extension candidates. Maximal degree in co-relation 357208. Up to 154976 conditions per place. [2023-11-12 02:05:27,307 INFO L140 encePairwiseOnDemand]: 811/885 looper letters, 58 selfloop transitions, 0 changer transitions 1/111 dead transitions. [2023-11-12 02:05:27,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 111 transitions, 388 flow [2023-11-12 02:05:27,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:05:27,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:05:27,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 909 transitions. [2023-11-12 02:05:27,337 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5135593220338983 [2023-11-12 02:05:27,337 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 909 transitions. [2023-11-12 02:05:27,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 909 transitions. [2023-11-12 02:05:27,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:05:27,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 909 transitions. [2023-11-12 02:05:27,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 454.5) internal successors, (909), 2 states have internal predecessors, (909), 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 02:05:27,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 885.0) internal successors, (2655), 3 states have internal predecessors, (2655), 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 02:05:27,362 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 885.0) internal successors, (2655), 3 states have internal predecessors, (2655), 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 02:05:27,364 INFO L175 Difference]: Start difference. First operand has 198 places, 185 transitions, 418 flow. Second operand 2 states and 909 transitions. [2023-11-12 02:05:27,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 111 transitions, 388 flow [2023-11-12 02:05:28,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 111 transitions, 356 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-11-12 02:05:28,350 INFO L231 Difference]: Finished difference. Result has 115 places, 110 transitions, 235 flow [2023-11-12 02:05:28,352 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=885, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=235, PETRI_PLACES=115, PETRI_TRANSITIONS=110} [2023-11-12 02:05:28,356 INFO L281 CegarLoopForPetriNet]: 198 programPoint places, -83 predicate places. [2023-11-12 02:05:28,356 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 110 transitions, 235 flow [2023-11-12 02:05:28,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 388.5) internal successors, (777), 2 states have internal predecessors, (777), 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 02:05:28,357 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:05:28,358 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:05:28,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:05:28,358 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-12 02:05:28,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:05:28,359 INFO L85 PathProgramCache]: Analyzing trace with hash -259992362, now seen corresponding path program 1 times [2023-11-12 02:05:28,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:05:28,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679381210] [2023-11-12 02:05:28,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:05:28,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:05:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:05:29,008 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 02:05:29,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:05:29,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679381210] [2023-11-12 02:05:29,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679381210] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:05:29,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:05:29,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:05:29,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756249382] [2023-11-12 02:05:29,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:05:29,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:05:29,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:05:29,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:05:29,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:05:29,545 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 885 [2023-11-12 02:05:29,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 110 transitions, 235 flow. Second operand has 6 states, 6 states have (on average 379.6666666666667) internal successors, (2278), 6 states have internal predecessors, (2278), 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 02:05:29,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:05:29,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 885 [2023-11-12 02:05:29,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand