./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607d4550-c277-4f67-b286-6e0077062440/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607d4550-c277-4f67-b286-6e0077062440/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607d4550-c277-4f67-b286-6e0077062440/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607d4550-c277-4f67-b286-6e0077062440/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607d4550-c277-4f67-b286-6e0077062440/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607d4550-c277-4f67-b286-6e0077062440/bin/uautomizer-verify-uCwYo4JHxu --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 a690a19e2d41bbc14b3960c21812e80405a4291ef4154c7125f66fa1ebbf9c8f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:37:01,772 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:37:01,844 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607d4550-c277-4f67-b286-6e0077062440/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:37:01,849 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:37:01,850 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:37:01,878 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:37:01,879 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:37:01,880 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:37:01,881 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:37:01,881 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:37:01,882 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:37:01,883 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:37:01,883 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:37:01,884 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:37:01,884 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:37:01,885 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:37:01,885 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:37:01,886 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:37:01,886 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:37:01,887 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:37:01,887 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:37:01,890 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:37:01,890 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:37:01,891 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:37:01,891 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:37:01,892 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:37:01,892 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:37:01,893 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:37:01,894 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:37:01,913 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:37:01,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:37:01,915 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:37:01,915 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:37:01,915 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:37:01,915 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:37:01,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:37:01,916 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:37:01,916 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:37:01,916 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:37:01,916 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:37:01,917 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:37:01,917 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_607d4550-c277-4f67-b286-6e0077062440/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607d4550-c277-4f67-b286-6e0077062440/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a690a19e2d41bbc14b3960c21812e80405a4291ef4154c7125f66fa1ebbf9c8f [2023-11-19 07:37:02,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:37:02,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:37:02,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:37:02,206 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:37:02,207 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:37:02,208 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607d4550-c277-4f67-b286-6e0077062440/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2023-11-19 07:37:05,243 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:37:05,525 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:37:05,525 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607d4550-c277-4f67-b286-6e0077062440/sv-benchmarks/c/weaver/parallel-barrier-loop.wvr.c [2023-11-19 07:37:05,536 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607d4550-c277-4f67-b286-6e0077062440/bin/uautomizer-verify-uCwYo4JHxu/data/c416c4bc8/4afb0ccffb9a456aae0c21cfeb7aad6c/FLAGf9a9b494b [2023-11-19 07:37:05,552 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607d4550-c277-4f67-b286-6e0077062440/bin/uautomizer-verify-uCwYo4JHxu/data/c416c4bc8/4afb0ccffb9a456aae0c21cfeb7aad6c [2023-11-19 07:37:05,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:37:05,556 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:37:05,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:05,558 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:37:05,565 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:37:05,566 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:05" (1/1) ... [2023-11-19 07:37:05,567 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@678615a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:05, skipping insertion in model container [2023-11-19 07:37:05,567 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:05" (1/1) ... [2023-11-19 07:37:05,598 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:37:05,909 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:05,924 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:37:06,016 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:06,026 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:06,030 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:06,038 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:37:06,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:06 WrapperNode [2023-11-19 07:37:06,039 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:06,040 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:06,040 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:37:06,041 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:37:06,048 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:06" (1/1) ... [2023-11-19 07:37:06,073 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:06" (1/1) ... [2023-11-19 07:37:06,130 INFO L138 Inliner]: procedures = 25, calls = 121, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 515 [2023-11-19 07:37:06,140 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:06,141 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:37:06,141 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:37:06,141 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:37:06,151 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:06" (1/1) ... [2023-11-19 07:37:06,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:06" (1/1) ... [2023-11-19 07:37:06,170 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:06" (1/1) ... [2023-11-19 07:37:06,171 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:06" (1/1) ... [2023-11-19 07:37:06,206 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:06" (1/1) ... [2023-11-19 07:37:06,211 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:06" (1/1) ... [2023-11-19 07:37:06,214 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:06" (1/1) ... [2023-11-19 07:37:06,217 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:06" (1/1) ... [2023-11-19 07:37:06,222 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:37:06,224 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:37:06,224 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:37:06,224 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:37:06,225 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:06" (1/1) ... [2023-11-19 07:37:06,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:37:06,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607d4550-c277-4f67-b286-6e0077062440/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:06,259 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607d4550-c277-4f67-b286-6e0077062440/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:06,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607d4550-c277-4f67-b286-6e0077062440/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:37:06,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:37:06,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:37:06,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:37:06,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:37:06,313 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 07:37:06,313 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 07:37:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 07:37:06,314 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 07:37:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 07:37:06,314 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 07:37:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-19 07:37:06,315 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-19 07:37:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:37:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-19 07:37:06,316 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-19 07:37:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-11-19 07:37:06,316 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-11-19 07:37:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:37:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:37:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:37:06,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:37:06,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:37:06,321 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:37:06,492 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:37:06,494 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:37:07,263 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:37:07,578 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:37:07,578 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 07:37:07,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:07 BoogieIcfgContainer [2023-11-19 07:37:07,592 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:37:07,598 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:37:07,598 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:37:07,601 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:37:07,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:37:05" (1/3) ... [2023-11-19 07:37:07,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3164dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:07, skipping insertion in model container [2023-11-19 07:37:07,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:06" (2/3) ... [2023-11-19 07:37:07,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3164dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:07, skipping insertion in model container [2023-11-19 07:37:07,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:07" (3/3) ... [2023-11-19 07:37:07,604 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier-loop.wvr.c [2023-11-19 07:37:07,617 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:37:07,628 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:37:07,628 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 82 error locations. [2023-11-19 07:37:07,628 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:37:07,845 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-11-19 07:37:07,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 493 places, 490 transitions, 1046 flow [2023-11-19 07:37:08,208 INFO L124 PetriNetUnfolderBase]: 16/450 cut-off events. [2023-11-19 07:37:08,208 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 07:37:08,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 450 events. 16/450 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 878 event pairs, 0 based on Foata normal form. 0/352 useless extension candidates. Maximal degree in co-relation 368. Up to 3 conditions per place. [2023-11-19 07:37:08,220 INFO L82 GeneralOperation]: Start removeDead. Operand has 493 places, 490 transitions, 1046 flow [2023-11-19 07:37:08,233 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 431 places, 426 transitions, 900 flow [2023-11-19 07:37:08,237 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:37:08,248 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 431 places, 426 transitions, 900 flow [2023-11-19 07:37:08,251 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 431 places, 426 transitions, 900 flow [2023-11-19 07:37:08,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 431 places, 426 transitions, 900 flow [2023-11-19 07:37:08,372 INFO L124 PetriNetUnfolderBase]: 14/426 cut-off events. [2023-11-19 07:37:08,372 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 07:37:08,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 426 events. 14/426 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 855 event pairs, 0 based on Foata normal form. 0/331 useless extension candidates. Maximal degree in co-relation 368. Up to 3 conditions per place. [2023-11-19 07:37:08,402 INFO L119 LiptonReduction]: Number of co-enabled transitions 34848 [2023-11-19 07:37:15,345 INFO L134 LiptonReduction]: Checked pairs total: 462335 [2023-11-19 07:37:15,345 INFO L136 LiptonReduction]: Total number of compositions: 401 [2023-11-19 07:37:15,373 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:37:15,380 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;@66ea5a12, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:37:15,380 INFO L358 AbstractCegarLoop]: Starting to check reachability of 148 error locations. [2023-11-19 07:37:15,382 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:37:15,382 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 07:37:15,382 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:37:15,383 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:15,383 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:37:15,384 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 144 more)] === [2023-11-19 07:37:15,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:15,388 INFO L85 PathProgramCache]: Analyzing trace with hash 2091, now seen corresponding path program 1 times [2023-11-19 07:37:15,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:15,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653576666] [2023-11-19 07:37:15,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:15,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:15,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:15,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:15,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:15,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653576666] [2023-11-19 07:37:15,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653576666] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:15,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:15,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:37:15,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628439216] [2023-11-19 07:37:15,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:15,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:37:15,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:15,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:37:15,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:37:15,574 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 377 out of 895 [2023-11-19 07:37:15,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 202 transitions, 452 flow. Second operand has 2 states, 2 states have (on average 377.5) internal successors, (755), 2 states have internal predecessors, (755), 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) [2023-11-19 07:37:15,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:15,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 377 of 895 [2023-11-19 07:37:15,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand