./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 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_bd558c0c-78bf-4190-897f-654fbc2f0158/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd558c0c-78bf-4190-897f-654fbc2f0158/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_bd558c0c-78bf-4190-897f-654fbc2f0158/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd558c0c-78bf-4190-897f-654fbc2f0158/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd558c0c-78bf-4190-897f-654fbc2f0158/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_bd558c0c-78bf-4190-897f-654fbc2f0158/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 0cfb19cf4d2e91498cc6b9015bdada7a33dfe09887340d8a9d79513b784b8b5a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:07:45,669 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:07:45,819 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd558c0c-78bf-4190-897f-654fbc2f0158/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:07:45,831 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:07:45,832 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:07:45,882 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:07:45,883 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:07:45,883 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:07:45,885 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:07:45,892 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:07:45,894 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:07:45,895 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:07:45,895 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:07:45,898 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:07:45,898 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:07:45,899 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:07:45,899 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:07:45,900 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:07:45,900 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:07:45,901 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:07:45,901 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:07:45,902 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:07:45,903 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:07:45,903 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:07:45,904 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:07:45,904 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:07:45,904 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:07:45,906 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:07:45,906 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:07:45,907 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:07:45,908 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:07:45,908 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:07:45,909 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:07:45,909 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:07:45,909 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:07:45,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:07:45,910 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:07:45,910 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:07:45,910 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:07:45,911 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:07:45,911 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:07:45,912 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_bd558c0c-78bf-4190-897f-654fbc2f0158/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd558c0c-78bf-4190-897f-654fbc2f0158/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cfb19cf4d2e91498cc6b9015bdada7a33dfe09887340d8a9d79513b784b8b5a [2023-11-21 22:07:46,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:07:46,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:07:46,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:07:46,299 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:07:46,300 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:07:46,302 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd558c0c-78bf-4190-897f-654fbc2f0158/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c [2023-11-21 22:07:49,519 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:07:49,859 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:07:49,860 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd558c0c-78bf-4190-897f-654fbc2f0158/sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c [2023-11-21 22:07:49,870 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd558c0c-78bf-4190-897f-654fbc2f0158/bin/uautomizer-verify-bycVGegfSx/data/ec8d4baf8/2b3f771fea1b46d09f98d2048683f3cd/FLAG1a4922d64 [2023-11-21 22:07:49,886 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd558c0c-78bf-4190-897f-654fbc2f0158/bin/uautomizer-verify-bycVGegfSx/data/ec8d4baf8/2b3f771fea1b46d09f98d2048683f3cd [2023-11-21 22:07:49,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:07:49,892 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:07:49,894 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:07:49,894 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:07:49,900 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:07:49,901 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:07:49" (1/1) ... [2023-11-21 22:07:49,902 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7617ffb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:49, skipping insertion in model container [2023-11-21 22:07:49,902 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:07:49" (1/1) ... [2023-11-21 22:07:49,942 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:07:50,202 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:07:50,216 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:07:50,272 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:07:50,284 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:50,284 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:50,293 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:07:50,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:50 WrapperNode [2023-11-21 22:07:50,293 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:07:50,295 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:07:50,295 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:07:50,295 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:07:50,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:50" (1/1) ... [2023-11-21 22:07:50,324 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:50" (1/1) ... [2023-11-21 22:07:50,385 INFO L138 Inliner]: procedures = 25, calls = 101, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 591 [2023-11-21 22:07:50,386 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:07:50,386 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:07:50,387 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:07:50,387 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:07:50,398 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:50" (1/1) ... [2023-11-21 22:07:50,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:50" (1/1) ... [2023-11-21 22:07:50,407 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:50" (1/1) ... [2023-11-21 22:07:50,408 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:50" (1/1) ... [2023-11-21 22:07:50,431 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:50" (1/1) ... [2023-11-21 22:07:50,435 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:50" (1/1) ... [2023-11-21 22:07:50,438 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:50" (1/1) ... [2023-11-21 22:07:50,441 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:50" (1/1) ... [2023-11-21 22:07:50,447 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:07:50,448 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:07:50,448 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:07:50,448 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:07:50,449 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:50" (1/1) ... [2023-11-21 22:07:50,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:07:50,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd558c0c-78bf-4190-897f-654fbc2f0158/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:07:50,484 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd558c0c-78bf-4190-897f-654fbc2f0158/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:07:50,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd558c0c-78bf-4190-897f-654fbc2f0158/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:07:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:07:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:07:50,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:07:50,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:07:50,533 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 22:07:50,533 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 22:07:50,533 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 22:07:50,533 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 22:07:50,533 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-21 22:07:50,534 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-21 22:07:50,534 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-21 22:07:50,534 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-21 22:07:50,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:07:50,534 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-21 22:07:50,535 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-21 22:07:50,535 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-11-21 22:07:50,535 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-11-21 22:07:50,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 22:07:50,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 22:07:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:07:50,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:07:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:07:50,538 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 22:07:50,778 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:07:50,784 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:07:51,725 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:07:52,196 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:07:52,197 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:07:52,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:07:52 BoogieIcfgContainer [2023-11-21 22:07:52,199 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:07:52,202 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:07:52,203 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:07:52,207 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:07:52,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:07:49" (1/3) ... [2023-11-21 22:07:52,208 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@319ad587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:07:52, skipping insertion in model container [2023-11-21 22:07:52,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:50" (2/3) ... [2023-11-21 22:07:52,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@319ad587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:07:52, skipping insertion in model container [2023-11-21 22:07:52,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:07:52" (3/3) ... [2023-11-21 22:07:52,210 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-6.wvr.c [2023-11-21 22:07:52,222 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:07:52,234 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:07:52,235 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 88 error locations. [2023-11-21 22:07:52,235 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:07:52,356 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2023-11-21 22:07:52,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 403 places, 389 transitions, 820 flow [2023-11-21 22:07:52,574 INFO L124 PetriNetUnfolderBase]: 5/383 cut-off events. [2023-11-21 22:07:52,574 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-21 22:07:52,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 408 conditions, 383 events. 5/383 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 429 event pairs, 0 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 287. Up to 2 conditions per place. [2023-11-21 22:07:52,581 INFO L82 GeneralOperation]: Start removeDead. Operand has 403 places, 389 transitions, 820 flow [2023-11-21 22:07:52,595 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 369 places, 354 transitions, 744 flow [2023-11-21 22:07:52,641 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:07:52,649 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;@7bea786e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:07:52,649 INFO L358 AbstractCegarLoop]: Starting to check reachability of 159 error locations. [2023-11-21 22:07:52,667 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:07:52,667 INFO L124 PetriNetUnfolderBase]: 0/29 cut-off events. [2023-11-21 22:07:52,667 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:07:52,667 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:07:52,669 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 22:07:52,669 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 155 more)] === [2023-11-21 22:07:52,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:07:52,676 INFO L85 PathProgramCache]: Analyzing trace with hash -517176117, now seen corresponding path program 1 times [2023-11-21 22:07:52,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:07:52,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79940381] [2023-11-21 22:07:52,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:07:52,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:07:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:07:53,063 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 22:07:53,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:07:53,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79940381] [2023-11-21 22:07:53,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79940381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:07:53,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:07:53,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:07:53,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16262991] [2023-11-21 22:07:53,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:07:53,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:07:53,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:07:53,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:07:53,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:07:53,167 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 389 [2023-11-21 22:07:53,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 354 transitions, 744 flow. Second operand has 3 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 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 22:07:53,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:07:53,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 389 [2023-11-21 22:07:53,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:08:27,012 INFO L124 PetriNetUnfolderBase]: 104692/148697 cut-off events. [2023-11-21 22:08:27,013 INFO L125 PetriNetUnfolderBase]: For 16908/17874 co-relation queries the response was YES. [2023-11-21 22:08:27,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294021 conditions, 148697 events. 104692/148697 cut-off events. For 16908/17874 co-relation queries the response was YES. Maximal size of possible extension queue 5410. Compared 1180757 event pairs, 104689 based on Foata normal form. 1/148526 useless extension candidates. Maximal degree in co-relation 292272. Up to 132035 conditions per place. [2023-11-21 22:08:28,997 INFO L140 encePairwiseOnDemand]: 320/389 looper letters, 40 selfloop transitions, 2 changer transitions 1/287 dead transitions. [2023-11-21 22:08:28,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 287 transitions, 694 flow [2023-11-21 22:08:28,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:08:29,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:08:29,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 940 transitions. [2023-11-21 22:08:29,018 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.805484147386461 [2023-11-21 22:08:29,019 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 940 transitions. [2023-11-21 22:08:29,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 940 transitions. [2023-11-21 22:08:29,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:08:29,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 940 transitions. [2023-11-21 22:08:29,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 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 22:08:29,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 389.0) internal successors, (1556), 4 states have internal predecessors, (1556), 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 22:08:29,046 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 389.0) internal successors, (1556), 4 states have internal predecessors, (1556), 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 22:08:29,049 INFO L175 Difference]: Start difference. First operand has 369 places, 354 transitions, 744 flow. Second operand 3 states and 940 transitions. [2023-11-21 22:08:29,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 287 transitions, 694 flow [2023-11-21 22:08:29,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 287 transitions, 670 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-11-21 22:08:29,126 INFO L231 Difference]: Finished difference. Result has 293 places, 286 transitions, 588 flow [2023-11-21 22:08:29,129 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=389, PETRI_DIFFERENCE_MINUEND_FLOW=586, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=588, PETRI_PLACES=293, PETRI_TRANSITIONS=286} [2023-11-21 22:08:29,133 INFO L281 CegarLoopForPetriNet]: 369 programPoint places, -76 predicate places. [2023-11-21 22:08:29,133 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 286 transitions, 588 flow [2023-11-21 22:08:29,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 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 22:08:29,135 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:08:29,135 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:29,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:08:29,136 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 155 more)] === [2023-11-21 22:08:29,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:29,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1555267370, now seen corresponding path program 1 times [2023-11-21 22:08:29,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:29,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423398449] [2023-11-21 22:08:29,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:29,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:29,235 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 22:08:29,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:29,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423398449] [2023-11-21 22:08:29,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423398449] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:29,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:29,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:08:29,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221582238] [2023-11-21 22:08:29,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:29,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:08:29,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:29,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:08:29,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:08:29,254 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 389 [2023-11-21 22:08:29,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 286 transitions, 588 flow. Second operand has 3 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 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 22:08:29,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:08:29,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 389 [2023-11-21 22:08:29,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand