./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/array-eq-trans.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_077394d9-049d-4ff8-81a6-c78ca475c113/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077394d9-049d-4ff8-81a6-c78ca475c113/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_077394d9-049d-4ff8-81a6-c78ca475c113/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077394d9-049d-4ff8-81a6-c78ca475c113/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077394d9-049d-4ff8-81a6-c78ca475c113/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_077394d9-049d-4ff8-81a6-c78ca475c113/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 e7f1528a4c77969c5bff279724a3ed43475460be047e2e4b141f1353c3ea9cfe --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:06:32,096 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:06:32,214 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077394d9-049d-4ff8-81a6-c78ca475c113/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 08:06:32,226 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:06:32,227 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:06:32,267 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:06:32,268 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:06:32,269 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:06:32,270 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:06:32,275 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:06:32,276 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:06:32,277 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:06:32,277 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:06:32,279 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:06:32,280 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:06:32,280 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:06:32,280 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:06:32,281 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:06:32,281 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:06:32,282 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:06:32,282 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:06:32,283 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:06:32,284 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 08:06:32,285 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:06:32,286 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:06:32,286 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:06:32,287 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:06:32,288 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:06:32,288 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:06:32,289 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:06:32,290 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:06:32,290 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:06:32,290 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:06:32,291 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:06:32,291 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:06:32,291 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:06:32,292 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:06:32,292 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:06:32,292 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:06:32,292 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:06:32,293 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:06:32,293 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_077394d9-049d-4ff8-81a6-c78ca475c113/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077394d9-049d-4ff8-81a6-c78ca475c113/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7f1528a4c77969c5bff279724a3ed43475460be047e2e4b141f1353c3ea9cfe [2023-11-19 08:06:32,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:06:32,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:06:32,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:06:32,664 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:06:32,665 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:06:32,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077394d9-049d-4ff8-81a6-c78ca475c113/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c [2023-11-19 08:06:35,803 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:06:36,050 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:06:36,051 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077394d9-049d-4ff8-81a6-c78ca475c113/sv-benchmarks/c/weaver/array-eq-trans.wvr.c [2023-11-19 08:06:36,059 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077394d9-049d-4ff8-81a6-c78ca475c113/bin/uautomizer-verify-uCwYo4JHxu/data/8bd18833b/d877e97934f5414c9e3dc96939177b82/FLAGb6ec1f0cf [2023-11-19 08:06:36,074 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077394d9-049d-4ff8-81a6-c78ca475c113/bin/uautomizer-verify-uCwYo4JHxu/data/8bd18833b/d877e97934f5414c9e3dc96939177b82 [2023-11-19 08:06:36,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:06:36,078 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:06:36,080 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:06:36,080 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:06:36,086 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:06:36,086 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:36" (1/1) ... [2023-11-19 08:06:36,088 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b761708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:36, skipping insertion in model container [2023-11-19 08:06:36,088 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:36" (1/1) ... [2023-11-19 08:06:36,118 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:06:36,348 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:06:36,359 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:06:36,408 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:06:36,424 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:06:36,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:36 WrapperNode [2023-11-19 08:06:36,425 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:06:36,426 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:06:36,426 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:06:36,427 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:06:36,435 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:36" (1/1) ... [2023-11-19 08:06:36,452 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:36" (1/1) ... [2023-11-19 08:06:36,517 INFO L138 Inliner]: procedures = 24, calls = 47, calls flagged for inlining = 11, calls inlined = 15, statements flattened = 358 [2023-11-19 08:06:36,518 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:06:36,519 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:06:36,519 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:06:36,519 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:06:36,537 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:36" (1/1) ... [2023-11-19 08:06:36,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:36" (1/1) ... [2023-11-19 08:06:36,546 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:36" (1/1) ... [2023-11-19 08:06:36,546 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:36" (1/1) ... [2023-11-19 08:06:36,581 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:36" (1/1) ... [2023-11-19 08:06:36,588 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:36" (1/1) ... [2023-11-19 08:06:36,591 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:36" (1/1) ... [2023-11-19 08:06:36,594 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:36" (1/1) ... [2023-11-19 08:06:36,600 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:06:36,601 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:06:36,601 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:06:36,601 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:06:36,602 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:36" (1/1) ... [2023-11-19 08:06:36,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:06:36,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077394d9-049d-4ff8-81a6-c78ca475c113/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:06:36,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077394d9-049d-4ff8-81a6-c78ca475c113/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:06:36,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_077394d9-049d-4ff8-81a6-c78ca475c113/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:06:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:06:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 08:06:36,699 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 08:06:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 08:06:36,699 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 08:06:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 08:06:36,700 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 08:06:36,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:06:36,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:06:36,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:06:36,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 08:06:36,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:06:36,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:06:36,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 08:06:36,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:06:36,705 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 08:06:36,893 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:06:36,895 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:06:37,920 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:06:37,937 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:06:37,937 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-19 08:06:37,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:37 BoogieIcfgContainer [2023-11-19 08:06:37,949 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:06:37,952 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:06:37,953 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:06:37,957 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:06:37,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:06:36" (1/3) ... [2023-11-19 08:06:37,959 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd221ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:37, skipping insertion in model container [2023-11-19 08:06:37,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:36" (2/3) ... [2023-11-19 08:06:37,960 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd221ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:37, skipping insertion in model container [2023-11-19 08:06:37,961 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:37" (3/3) ... [2023-11-19 08:06:37,963 INFO L112 eAbstractionObserver]: Analyzing ICFG array-eq-trans.wvr.c [2023-11-19 08:06:37,973 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 08:06:37,984 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:06:37,985 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 81 error locations. [2023-11-19 08:06:37,985 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 08:06:38,163 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-19 08:06:38,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 632 places, 655 transitions, 1331 flow [2023-11-19 08:06:38,573 INFO L124 PetriNetUnfolderBase]: 33/652 cut-off events. [2023-11-19 08:06:38,573 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 08:06:38,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 665 conditions, 652 events. 33/652 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1344 event pairs, 0 based on Foata normal form. 0/538 useless extension candidates. Maximal degree in co-relation 371. Up to 3 conditions per place. [2023-11-19 08:06:38,587 INFO L82 GeneralOperation]: Start removeDead. Operand has 632 places, 655 transitions, 1331 flow [2023-11-19 08:06:38,604 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 601 places, 621 transitions, 1260 flow [2023-11-19 08:06:38,608 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:06:38,633 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 601 places, 621 transitions, 1260 flow [2023-11-19 08:06:38,639 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 601 places, 621 transitions, 1260 flow [2023-11-19 08:06:38,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 601 places, 621 transitions, 1260 flow [2023-11-19 08:06:38,805 INFO L124 PetriNetUnfolderBase]: 30/621 cut-off events. [2023-11-19 08:06:38,806 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 08:06:38,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 634 conditions, 621 events. 30/621 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1229 event pairs, 0 based on Foata normal form. 0/511 useless extension candidates. Maximal degree in co-relation 371. Up to 3 conditions per place. [2023-11-19 08:06:38,838 INFO L119 LiptonReduction]: Number of co-enabled transitions 36582 [2023-11-19 08:07:20,902 WARN L293 SmtUtils]: Spent 12.24s on a formula simplification. DAG size of input: 156 DAG size of output: 153 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-19 08:07:27,014 WARN L293 SmtUtils]: Spent 6.11s on a formula simplification that was a NOOP. DAG size: 153 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-19 08:07:27,102 INFO L134 LiptonReduction]: Checked pairs total: 206284 [2023-11-19 08:07:27,102 INFO L136 LiptonReduction]: Total number of compositions: 724 [2023-11-19 08:07:27,118 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:07:27,124 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;@34fa83e5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:07:27,124 INFO L358 AbstractCegarLoop]: Starting to check reachability of 120 error locations. [2023-11-19 08:07:27,126 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:07:27,126 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 08:07:27,126 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:07:27,126 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:07:27,127 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 08:07:27,128 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-19 08:07:27,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:07:27,133 INFO L85 PathProgramCache]: Analyzing trace with hash 2345, now seen corresponding path program 1 times [2023-11-19 08:07:27,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:07:27,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344737850] [2023-11-19 08:07:27,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:07:27,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:07:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:27,258 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 08:07:27,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:07:27,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344737850] [2023-11-19 08:07:27,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344737850] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:07:27,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:07:27,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 08:07:27,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540194857] [2023-11-19 08:07:27,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:07:27,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:07:27,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:07:27,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:07:27,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:07:27,312 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 633 out of 1379 [2023-11-19 08:07:27,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 184 transitions, 386 flow. Second operand has 2 states, 2 states have (on average 633.5) internal successors, (1267), 2 states have internal predecessors, (1267), 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 08:07:27,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:07:27,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 633 of 1379 [2023-11-19 08:07:27,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:07:29,919 INFO L124 PetriNetUnfolderBase]: 8446/17037 cut-off events. [2023-11-19 08:07:29,919 INFO L125 PetriNetUnfolderBase]: For 543/543 co-relation queries the response was YES. [2023-11-19 08:07:29,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28758 conditions, 17037 events. 8446/17037 cut-off events. For 543/543 co-relation queries the response was YES. Maximal size of possible extension queue 592. Compared 149241 event pairs, 6135 based on Foata normal form. 1175/14929 useless extension candidates. Maximal degree in co-relation 25898. Up to 11337 conditions per place. [2023-11-19 08:07:30,109 INFO L140 encePairwiseOnDemand]: 1316/1379 looper letters, 52 selfloop transitions, 0 changer transitions 1/121 dead transitions. [2023-11-19 08:07:30,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 121 transitions, 366 flow [2023-11-19 08:07:30,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:07:30,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 08:07:30,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1382 transitions. [2023-11-19 08:07:30,137 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5010877447425671 [2023-11-19 08:07:30,138 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1382 transitions. [2023-11-19 08:07:30,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1382 transitions. [2023-11-19 08:07:30,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:07:30,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1382 transitions. [2023-11-19 08:07:30,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 691.0) internal successors, (1382), 2 states have internal predecessors, (1382), 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 08:07:30,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1379.0) internal successors, (4137), 3 states have internal predecessors, (4137), 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 08:07:30,175 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1379.0) internal successors, (4137), 3 states have internal predecessors, (4137), 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 08:07:30,177 INFO L175 Difference]: Start difference. First operand has 179 places, 184 transitions, 386 flow. Second operand 2 states and 1382 transitions. [2023-11-19 08:07:30,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 121 transitions, 366 flow [2023-11-19 08:07:30,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 121 transitions, 354 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-19 08:07:30,196 INFO L231 Difference]: Finished difference. Result has 114 places, 120 transitions, 245 flow [2023-11-19 08:07:30,199 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1379, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=245, PETRI_PLACES=114, PETRI_TRANSITIONS=120} [2023-11-19 08:07:30,203 INFO L281 CegarLoopForPetriNet]: 179 programPoint places, -65 predicate places. [2023-11-19 08:07:30,203 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 120 transitions, 245 flow [2023-11-19 08:07:30,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 633.5) internal successors, (1267), 2 states have internal predecessors, (1267), 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 08:07:30,205 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:07:30,205 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:07:30,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:07:30,206 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-19 08:07:30,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:07:30,217 INFO L85 PathProgramCache]: Analyzing trace with hash 567820371, now seen corresponding path program 1 times [2023-11-19 08:07:30,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:07:30,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648747708] [2023-11-19 08:07:30,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:07:30,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:07:30,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:30,465 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 08:07:30,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:07:30,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648747708] [2023-11-19 08:07:30,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648747708] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:07:30,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:07:30,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:07:30,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056546528] [2023-11-19 08:07:30,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:07:30,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:07:30,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:07:30,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:07:30,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:07:30,494 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 617 out of 1379 [2023-11-19 08:07:30,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 120 transitions, 245 flow. Second operand has 3 states, 3 states have (on average 619.3333333333334) internal successors, (1858), 3 states have internal predecessors, (1858), 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 08:07:30,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:07:30,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 617 of 1379 [2023-11-19 08:07:30,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand