./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 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_771ff472-4826-4aa9-89a8-2b1577457f1d/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771ff472-4826-4aa9-89a8-2b1577457f1d/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771ff472-4826-4aa9-89a8-2b1577457f1d/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771ff472-4826-4aa9-89a8-2b1577457f1d/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771ff472-4826-4aa9-89a8-2b1577457f1d/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771ff472-4826-4aa9-89a8-2b1577457f1d/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:09:14,411 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:09:14,522 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771ff472-4826-4aa9-89a8-2b1577457f1d/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-12 02:09:14,530 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:09:14,530 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:09:14,563 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:09:14,564 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:09:14,565 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:09:14,565 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:09:14,568 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:09:14,569 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:09:14,570 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:09:14,572 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:09:14,572 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:09:14,574 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:09:14,574 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:09:14,575 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:09:14,575 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:09:14,576 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:09:14,576 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:09:14,577 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:09:14,580 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:09:14,580 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 02:09:14,580 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:09:14,581 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:09:14,581 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:09:14,582 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:09:14,582 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:09:14,583 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:09:14,583 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:09:14,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:09:14,584 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:09:14,585 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:09:14,585 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:09:14,586 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:09:14,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:09:14,587 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:09:14,587 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:09:14,587 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:09:14,588 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:09:14,588 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:09:14,589 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_771ff472-4826-4aa9-89a8-2b1577457f1d/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771ff472-4826-4aa9-89a8-2b1577457f1d/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0 [2023-11-12 02:09:14,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:09:14,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:09:14,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:09:14,933 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:09:14,933 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:09:14,935 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771ff472-4826-4aa9-89a8-2b1577457f1d/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2023-11-12 02:09:18,003 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:09:18,235 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:09:18,236 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771ff472-4826-4aa9-89a8-2b1577457f1d/sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2023-11-12 02:09:18,249 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771ff472-4826-4aa9-89a8-2b1577457f1d/bin/uautomizer-verify-uTZkv6EMXl/data/56f959201/259deb30212e479f973d8ef07c94d365/FLAG050121b9c [2023-11-12 02:09:18,269 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771ff472-4826-4aa9-89a8-2b1577457f1d/bin/uautomizer-verify-uTZkv6EMXl/data/56f959201/259deb30212e479f973d8ef07c94d365 [2023-11-12 02:09:18,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:09:18,278 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:09:18,282 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:09:18,282 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:09:18,288 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:09:18,289 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:09:18" (1/1) ... [2023-11-12 02:09:18,292 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d50f4d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:18, skipping insertion in model container [2023-11-12 02:09:18,293 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:09:18" (1/1) ... [2023-11-12 02:09:18,338 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:09:18,622 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:09:18,633 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:09:18,695 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:09:18,722 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:09:18,723 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:18 WrapperNode [2023-11-12 02:09:18,723 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:09:18,725 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:09:18,725 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:09:18,725 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:09:18,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:18" (1/1) ... [2023-11-12 02:09:18,761 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:18" (1/1) ... [2023-11-12 02:09:18,833 INFO L138 Inliner]: procedures = 27, calls = 67, calls flagged for inlining = 23, calls inlined = 35, statements flattened = 827 [2023-11-12 02:09:18,833 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:09:18,834 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:09:18,834 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:09:18,834 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:09:18,846 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:18" (1/1) ... [2023-11-12 02:09:18,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:18" (1/1) ... [2023-11-12 02:09:18,862 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:18" (1/1) ... [2023-11-12 02:09:18,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:18" (1/1) ... [2023-11-12 02:09:18,905 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:18" (1/1) ... [2023-11-12 02:09:18,913 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:18" (1/1) ... [2023-11-12 02:09:18,917 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:18" (1/1) ... [2023-11-12 02:09:18,922 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:18" (1/1) ... [2023-11-12 02:09:18,930 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:09:18,931 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:09:18,932 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:09:18,932 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:09:18,938 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:18" (1/1) ... [2023-11-12 02:09:18,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:09:18,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771ff472-4826-4aa9-89a8-2b1577457f1d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:09:18,971 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771ff472-4826-4aa9-89a8-2b1577457f1d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:09:18,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_771ff472-4826-4aa9-89a8-2b1577457f1d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:09:19,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:09:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:09:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:09:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:09:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 02:09:19,012 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 02:09:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 02:09:19,012 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 02:09:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-12 02:09:19,013 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-12 02:09:19,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:09:19,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:09:19,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:09:19,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:09:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:09:19,016 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:09:19,180 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:09:19,183 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:09:20,432 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:09:20,453 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:09:20,454 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-12 02:09:20,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:09:20 BoogieIcfgContainer [2023-11-12 02:09:20,458 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:09:20,461 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:09:20,462 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:09:20,466 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:09:20,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:09:18" (1/3) ... [2023-11-12 02:09:20,467 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@510c48fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:09:20, skipping insertion in model container [2023-11-12 02:09:20,467 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:18" (2/3) ... [2023-11-12 02:09:20,469 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@510c48fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:09:20, skipping insertion in model container [2023-11-12 02:09:20,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:09:20" (3/3) ... [2023-11-12 02:09:20,471 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-subst.wvr.c [2023-11-12 02:09:20,480 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:09:20,492 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:09:20,492 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 119 error locations. [2023-11-12 02:09:20,493 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:09:20,733 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-12 02:09:20,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1043 places, 1081 transitions, 2183 flow [2023-11-12 02:09:21,458 INFO L124 PetriNetUnfolderBase]: 48/1078 cut-off events. [2023-11-12 02:09:21,459 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 02:09:21,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1091 conditions, 1078 events. 48/1078 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2239 event pairs, 0 based on Foata normal form. 0/911 useless extension candidates. Maximal degree in co-relation 852. Up to 2 conditions per place. [2023-11-12 02:09:21,487 INFO L82 GeneralOperation]: Start removeDead. Operand has 1043 places, 1081 transitions, 2183 flow [2023-11-12 02:09:21,516 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1014 places, 1049 transitions, 2116 flow [2023-11-12 02:09:21,519 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:09:21,534 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1014 places, 1049 transitions, 2116 flow [2023-11-12 02:09:21,538 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1014 places, 1049 transitions, 2116 flow [2023-11-12 02:09:21,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1014 places, 1049 transitions, 2116 flow [2023-11-12 02:09:22,026 INFO L124 PetriNetUnfolderBase]: 45/1049 cut-off events. [2023-11-12 02:09:22,026 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 02:09:22,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1062 conditions, 1049 events. 45/1049 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2191 event pairs, 0 based on Foata normal form. 0/886 useless extension candidates. Maximal degree in co-relation 852. Up to 2 conditions per place. [2023-11-12 02:09:22,153 INFO L119 LiptonReduction]: Number of co-enabled transitions 162486 [2023-11-12 02:09:54,670 INFO L134 LiptonReduction]: Checked pairs total: 1096469 [2023-11-12 02:09:54,670 INFO L136 LiptonReduction]: Total number of compositions: 1053 [2023-11-12 02:09:54,689 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:09:54,697 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;@4e0bd33c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:09:54,697 INFO L358 AbstractCegarLoop]: Starting to check reachability of 197 error locations. [2023-11-12 02:09:54,700 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:09:54,700 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-12 02:09:54,700 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:09:54,701 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:09:54,701 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-12 02:09:54,702 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-12 02:09:54,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:54,708 INFO L85 PathProgramCache]: Analyzing trace with hash 3855, now seen corresponding path program 1 times [2023-11-12 02:09:54,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:54,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747471640] [2023-11-12 02:09:54,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:54,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:54,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:09:54,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:54,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747471640] [2023-11-12 02:09:54,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747471640] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:54,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:54,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 02:09:54,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545908826] [2023-11-12 02:09:54,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:54,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:09:54,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:54,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:09:54,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:09:54,886 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1045 out of 2134 [2023-11-12 02:09:54,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 321 transitions, 660 flow. Second operand has 2 states, 2 states have (on average 1045.5) internal successors, (2091), 2 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:54,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:09:54,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1045 of 2134 [2023-11-12 02:09:54,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:10:02,417 INFO L124 PetriNetUnfolderBase]: 12275/40706 cut-off events. [2023-11-12 02:10:02,417 INFO L125 PetriNetUnfolderBase]: For 587/587 co-relation queries the response was YES. [2023-11-12 02:10:02,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58085 conditions, 40706 events. 12275/40706 cut-off events. For 587/587 co-relation queries the response was YES. Maximal size of possible extension queue 978. Compared 516604 event pairs, 10109 based on Foata normal form. 2416/35161 useless extension candidates. Maximal degree in co-relation 54111. Up to 16916 conditions per place. [2023-11-12 02:10:03,088 INFO L140 encePairwiseOnDemand]: 2072/2134 looper letters, 65 selfloop transitions, 0 changer transitions 1/259 dead transitions. [2023-11-12 02:10:03,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 259 transitions, 668 flow [2023-11-12 02:10:03,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:10:03,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:10:03,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2218 transitions. [2023-11-12 02:10:03,120 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5196813495782568 [2023-11-12 02:10:03,121 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 2218 transitions. [2023-11-12 02:10:03,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 2218 transitions. [2023-11-12 02:10:03,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:10:03,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 2218 transitions. [2023-11-12 02:10:03,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 1109.0) internal successors, (2218), 2 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:03,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 2134.0) internal successors, (6402), 3 states have internal predecessors, (6402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:03,169 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 2134.0) internal successors, (6402), 3 states have internal predecessors, (6402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:03,172 INFO L175 Difference]: Start difference. First operand has 318 places, 321 transitions, 660 flow. Second operand 2 states and 2218 transitions. [2023-11-12 02:10:03,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 259 transitions, 668 flow [2023-11-12 02:10:03,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 259 transitions, 656 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-12 02:10:03,207 INFO L231 Difference]: Finished difference. Result has 252 places, 258 transitions, 521 flow [2023-11-12 02:10:03,210 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2134, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=521, PETRI_PLACES=252, PETRI_TRANSITIONS=258} [2023-11-12 02:10:03,216 INFO L281 CegarLoopForPetriNet]: 318 programPoint places, -66 predicate places. [2023-11-12 02:10:03,216 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 258 transitions, 521 flow [2023-11-12 02:10:03,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1045.5) internal successors, (2091), 2 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:03,218 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:10:03,218 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:10:03,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:10:03,219 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-12 02:10:03,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:10:03,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1470322744, now seen corresponding path program 1 times [2023-11-12 02:10:03,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:10:03,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428473666] [2023-11-12 02:10:03,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:10:03,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:10:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:10:03,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:10:03,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:10:03,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428473666] [2023-11-12 02:10:03,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428473666] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:10:03,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:10:03,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:10:03,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60401928] [2023-11-12 02:10:03,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:10:03,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:10:03,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:10:03,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:10:03,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:10:03,578 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1032 out of 2134 [2023-11-12 02:10:03,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 258 transitions, 521 flow. Second operand has 3 states, 3 states have (on average 1035.3333333333333) internal successors, (3106), 3 states have internal predecessors, (3106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:10:03,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:10:03,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1032 of 2134 [2023-11-12 02:10:03,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand