./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b 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_f857ec25-14f8-4d39-a3a5-39af7b4cc183/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857ec25-14f8-4d39-a3a5-39af7b4cc183/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857ec25-14f8-4d39-a3a5-39af7b4cc183/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857ec25-14f8-4d39-a3a5-39af7b4cc183/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857ec25-14f8-4d39-a3a5-39af7b4cc183/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857ec25-14f8-4d39-a3a5-39af7b4cc183/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 b79c2a620eba99d5ba65b548a8599a4feb45877b2c0c8388713c23f9a60bea18 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:24:44,190 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:24:44,307 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857ec25-14f8-4d39-a3a5-39af7b4cc183/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:24:44,316 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:24:44,317 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:24:44,354 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:24:44,356 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:24:44,357 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:24:44,358 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:24:44,362 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:24:44,363 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:24:44,364 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:24:44,364 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:24:44,366 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:24:44,367 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:24:44,367 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:24:44,368 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:24:44,368 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:24:44,369 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:24:44,369 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:24:44,370 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:24:44,370 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:24:44,371 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:24:44,371 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:24:44,373 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:24:44,373 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:24:44,374 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:24:44,375 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:24:44,375 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:24:44,376 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:24:44,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:24:44,378 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:24:44,378 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:24:44,378 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:24:44,378 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:24:44,379 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:24:44,379 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:24:44,379 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:24:44,380 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:24:44,380 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:24:44,380 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:24:44,381 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_f857ec25-14f8-4d39-a3a5-39af7b4cc183/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857ec25-14f8-4d39-a3a5-39af7b4cc183/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b79c2a620eba99d5ba65b548a8599a4feb45877b2c0c8388713c23f9a60bea18 [2023-11-06 22:24:44,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:24:44,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:24:44,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:24:44,732 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:24:44,733 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:24:44,734 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857ec25-14f8-4d39-a3a5-39af7b4cc183/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2023-11-06 22:24:47,878 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:24:48,189 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:24:48,189 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857ec25-14f8-4d39-a3a5-39af7b4cc183/sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2023-11-06 22:24:48,199 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857ec25-14f8-4d39-a3a5-39af7b4cc183/bin/uautomizer-verify-WvqO1wxjHP/data/c3c1d2119/060709ed63c54fde9ea0f48742d7255e/FLAG7ebd05dbe [2023-11-06 22:24:48,213 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857ec25-14f8-4d39-a3a5-39af7b4cc183/bin/uautomizer-verify-WvqO1wxjHP/data/c3c1d2119/060709ed63c54fde9ea0f48742d7255e [2023-11-06 22:24:48,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:24:48,217 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:24:48,218 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:24:48,218 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:24:48,225 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:24:48,226 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:24:48" (1/1) ... [2023-11-06 22:24:48,228 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@901b9a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:48, skipping insertion in model container [2023-11-06 22:24:48,228 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:24:48" (1/1) ... [2023-11-06 22:24:48,259 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:24:48,501 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:24:48,515 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:24:48,575 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:24:48,593 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:24:48,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:48 WrapperNode [2023-11-06 22:24:48,593 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:24:48,595 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:24:48,595 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:24:48,595 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:24:48,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:48" (1/1) ... [2023-11-06 22:24:48,622 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:48" (1/1) ... [2023-11-06 22:24:48,722 INFO L138 Inliner]: procedures = 27, calls = 67, calls flagged for inlining = 23, calls inlined = 35, statements flattened = 820 [2023-11-06 22:24:48,723 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:24:48,725 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:24:48,726 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:24:48,727 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:24:48,736 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:48" (1/1) ... [2023-11-06 22:24:48,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:48" (1/1) ... [2023-11-06 22:24:48,748 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:48" (1/1) ... [2023-11-06 22:24:48,749 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:48" (1/1) ... [2023-11-06 22:24:48,803 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:48" (1/1) ... [2023-11-06 22:24:48,832 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:48" (1/1) ... [2023-11-06 22:24:48,837 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:48" (1/1) ... [2023-11-06 22:24:48,842 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:48" (1/1) ... [2023-11-06 22:24:48,849 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:24:48,852 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:24:48,852 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:24:48,852 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:24:48,854 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:48" (1/1) ... [2023-11-06 22:24:48,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:24:48,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857ec25-14f8-4d39-a3a5-39af7b4cc183/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:24:48,886 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857ec25-14f8-4d39-a3a5-39af7b4cc183/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:24:48,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f857ec25-14f8-4d39-a3a5-39af7b4cc183/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:24:48,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:24:48,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:24:48,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:24:48,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:24:48,939 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 22:24:48,939 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 22:24:48,940 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 22:24:48,940 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 22:24:48,940 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 22:24:48,940 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 22:24:48,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:24:48,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:24:48,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:24:48,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:24:48,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:24:48,945 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:24:49,170 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:24:49,172 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:24:50,492 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:24:50,513 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:24:50,514 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-06 22:24:50,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:24:50 BoogieIcfgContainer [2023-11-06 22:24:50,518 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:24:50,522 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:24:50,522 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:24:50,526 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:24:50,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:24:48" (1/3) ... [2023-11-06 22:24:50,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd7e10d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:24:50, skipping insertion in model container [2023-11-06 22:24:50,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:48" (2/3) ... [2023-11-06 22:24:50,529 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd7e10d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:24:50, skipping insertion in model container [2023-11-06 22:24:50,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:24:50" (3/3) ... [2023-11-06 22:24:50,531 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-trans.wvr.c [2023-11-06 22:24:50,540 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:24:50,551 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:24:50,552 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 117 error locations. [2023-11-06 22:24:50,552 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:24:50,785 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 22:24:50,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1034 places, 1072 transitions, 2165 flow [2023-11-06 22:24:51,500 INFO L124 PetriNetUnfolderBase]: 48/1069 cut-off events. [2023-11-06 22:24:51,501 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:24:51,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1082 conditions, 1069 events. 48/1069 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2216 event pairs, 0 based on Foata normal form. 0/904 useless extension candidates. Maximal degree in co-relation 850. Up to 2 conditions per place. [2023-11-06 22:24:51,527 INFO L82 GeneralOperation]: Start removeDead. Operand has 1034 places, 1072 transitions, 2165 flow [2023-11-06 22:24:51,555 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1006 places, 1042 transitions, 2102 flow [2023-11-06 22:24:51,559 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:24:51,570 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1006 places, 1042 transitions, 2102 flow [2023-11-06 22:24:51,573 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1006 places, 1042 transitions, 2102 flow [2023-11-06 22:24:51,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1006 places, 1042 transitions, 2102 flow [2023-11-06 22:24:52,060 INFO L124 PetriNetUnfolderBase]: 46/1042 cut-off events. [2023-11-06 22:24:52,060 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:24:52,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1055 conditions, 1042 events. 46/1042 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2204 event pairs, 0 based on Foata normal form. 0/880 useless extension candidates. Maximal degree in co-relation 850. Up to 2 conditions per place. [2023-11-06 22:24:52,150 INFO L119 LiptonReduction]: Number of co-enabled transitions 160512 [2023-11-06 22:25:22,659 INFO L134 LiptonReduction]: Checked pairs total: 1114108 [2023-11-06 22:25:22,659 INFO L136 LiptonReduction]: Total number of compositions: 1058 [2023-11-06 22:25:22,694 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:25:22,707 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=LoopsAndPotentialCycles, 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;@226aee0a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:25:22,708 INFO L358 AbstractCegarLoop]: Starting to check reachability of 195 error locations. [2023-11-06 22:25:22,712 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:25:22,712 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 22:25:22,712 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:25:22,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:25:22,713 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:25:22,714 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-06 22:25:22,720 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:22,720 INFO L85 PathProgramCache]: Analyzing trace with hash 3835, now seen corresponding path program 1 times [2023-11-06 22:25:22,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:25:22,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857715408] [2023-11-06 22:25:22,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:22,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:25:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:22,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:25:22,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:25:22,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857715408] [2023-11-06 22:25:22,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857715408] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:25:22,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:25:22,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:25:22,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185940208] [2023-11-06 22:25:22,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:25:22,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:25:22,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:25:22,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:25:22,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:25:22,914 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1036 out of 2130 [2023-11-06 22:25:22,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 321 transitions, 660 flow. Second operand has 2 states, 2 states have (on average 1036.5) internal successors, (2073), 2 states have internal predecessors, (2073), 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) [2023-11-06 22:25:22,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:25:22,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1036 of 2130 [2023-11-06 22:25:22,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:25:29,637 INFO L124 PetriNetUnfolderBase]: 10931/37097 cut-off events. [2023-11-06 22:25:29,638 INFO L125 PetriNetUnfolderBase]: For 436/436 co-relation queries the response was YES. [2023-11-06 22:25:29,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52576 conditions, 37097 events. 10931/37097 cut-off events. For 436/436 co-relation queries the response was YES. Maximal size of possible extension queue 965. Compared 473702 event pairs, 8945 based on Foata normal form. 2565/31666 useless extension candidates. Maximal degree in co-relation 49326. Up to 15054 conditions per place. [2023-11-06 22:25:30,405 INFO L140 encePairwiseOnDemand]: 2068/2130 looper letters, 63 selfloop transitions, 0 changer transitions 1/259 dead transitions. [2023-11-06 22:25:30,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 259 transitions, 664 flow [2023-11-06 22:25:30,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:25:30,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:25:30,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2198 transitions. [2023-11-06 22:25:30,473 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.515962441314554 [2023-11-06 22:25:30,474 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 2198 transitions. [2023-11-06 22:25:30,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 2198 transitions. [2023-11-06 22:25:30,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:25:30,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 2198 transitions. [2023-11-06 22:25:30,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 1099.0) internal successors, (2198), 2 states have internal predecessors, (2198), 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) [2023-11-06 22:25:30,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 2130.0) internal successors, (6390), 3 states have internal predecessors, (6390), 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) [2023-11-06 22:25:30,554 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 2130.0) internal successors, (6390), 3 states have internal predecessors, (6390), 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) [2023-11-06 22:25:30,556 INFO L175 Difference]: Start difference. First operand has 316 places, 321 transitions, 660 flow. Second operand 2 states and 2198 transitions. [2023-11-06 22:25:30,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 259 transitions, 664 flow [2023-11-06 22:25:30,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 259 transitions, 652 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-06 22:25:30,601 INFO L231 Difference]: Finished difference. Result has 252 places, 258 transitions, 521 flow [2023-11-06 22:25:30,603 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2130, 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} [2023-11-06 22:25:30,608 INFO L281 CegarLoopForPetriNet]: 316 programPoint places, -64 predicate places. [2023-11-06 22:25:30,608 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 258 transitions, 521 flow [2023-11-06 22:25:30,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1036.5) internal successors, (2073), 2 states have internal predecessors, (2073), 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) [2023-11-06 22:25:30,611 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:25:30,611 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:25:30,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:25:30,612 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-06 22:25:30,622 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:30,623 INFO L85 PathProgramCache]: Analyzing trace with hash -884175618, now seen corresponding path program 1 times [2023-11-06 22:25:30,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:25:30,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820995307] [2023-11-06 22:25:30,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:30,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:25:30,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:30,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:25:30,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:25:30,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820995307] [2023-11-06 22:25:30,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820995307] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:25:30,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:25:30,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:25:30,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547520477] [2023-11-06 22:25:30,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:25:30,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:25:30,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:25:30,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:25:30,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:25:30,940 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1023 out of 2130 [2023-11-06 22:25:30,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 258 transitions, 521 flow. Second operand has 3 states, 3 states have (on average 1026.3333333333333) internal successors, (3079), 3 states have internal predecessors, (3079), 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) [2023-11-06 22:25:30,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:25:30,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1023 of 2130 [2023-11-06 22:25:30,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:25:36,713 INFO L124 PetriNetUnfolderBase]: 15995/44643 cut-off events. [2023-11-06 22:25:36,713 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2023-11-06 22:25:36,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66849 conditions, 44643 events. 15995/44643 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 1044. Compared 533430 event pairs, 4743 based on Foata normal form. 0/36865 useless extension candidates. Maximal degree in co-relation 66846. Up to 21958 conditions per place. [2023-11-06 22:25:37,109 INFO L140 encePairwiseOnDemand]: 2124/2130 looper letters, 85 selfloop transitions, 2 changer transitions 0/272 dead transitions. [2023-11-06 22:25:37,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 272 transitions, 725 flow [2023-11-06 22:25:37,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:25:37,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:25:37,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3160 transitions. [2023-11-06 22:25:37,124 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4945226917057903 [2023-11-06 22:25:37,124 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3160 transitions. [2023-11-06 22:25:37,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3160 transitions. [2023-11-06 22:25:37,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:25:37,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3160 transitions. [2023-11-06 22:25:37,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1053.3333333333333) internal successors, (3160), 3 states have internal predecessors, (3160), 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) [2023-11-06 22:25:37,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2130.0) internal successors, (8520), 4 states have internal predecessors, (8520), 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) [2023-11-06 22:25:37,164 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2130.0) internal successors, (8520), 4 states have internal predecessors, (8520), 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) [2023-11-06 22:25:37,165 INFO L175 Difference]: Start difference. First operand has 252 places, 258 transitions, 521 flow. Second operand 3 states and 3160 transitions. [2023-11-06 22:25:37,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 272 transitions, 725 flow [2023-11-06 22:25:37,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 272 transitions, 725 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:25:37,178 INFO L231 Difference]: Finished difference. Result has 250 places, 256 transitions, 527 flow [2023-11-06 22:25:37,178 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2130, PETRI_DIFFERENCE_MINUEND_FLOW=513, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=527, PETRI_PLACES=250, PETRI_TRANSITIONS=256} [2023-11-06 22:25:37,181 INFO L281 CegarLoopForPetriNet]: 316 programPoint places, -66 predicate places. [2023-11-06 22:25:37,181 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 256 transitions, 527 flow [2023-11-06 22:25:37,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1026.3333333333333) internal successors, (3079), 3 states have internal predecessors, (3079), 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) [2023-11-06 22:25:37,190 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:25:37,190 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:25:37,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:25:37,191 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-06 22:25:37,191 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:37,191 INFO L85 PathProgramCache]: Analyzing trace with hash 746874172, now seen corresponding path program 1 times [2023-11-06 22:25:37,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:25:37,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110239752] [2023-11-06 22:25:37,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:37,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:25:37,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:37,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:25:37,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:25:37,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110239752] [2023-11-06 22:25:37,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110239752] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:25:37,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:25:37,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:25:37,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622120595] [2023-11-06 22:25:37,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:25:37,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:25:37,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:25:37,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:25:37,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:25:37,373 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1023 out of 2130 [2023-11-06 22:25:37,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 256 transitions, 527 flow. Second operand has 3 states, 3 states have (on average 1027.0) internal successors, (3081), 3 states have internal predecessors, (3081), 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) [2023-11-06 22:25:37,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:25:37,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1023 of 2130 [2023-11-06 22:25:37,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:25:43,843 INFO L124 PetriNetUnfolderBase]: 18199/55534 cut-off events. [2023-11-06 22:25:43,843 INFO L125 PetriNetUnfolderBase]: For 161/161 co-relation queries the response was YES. [2023-11-06 22:25:44,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81001 conditions, 55534 events. 18199/55534 cut-off events. For 161/161 co-relation queries the response was YES. Maximal size of possible extension queue 1223. Compared 705275 event pairs, 11384 based on Foata normal form. 0/45531 useless extension candidates. Maximal degree in co-relation 80997. Up to 25052 conditions per place. [2023-11-06 22:25:44,380 INFO L140 encePairwiseOnDemand]: 2124/2130 looper letters, 92 selfloop transitions, 2 changer transitions 0/277 dead transitions. [2023-11-06 22:25:44,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 277 transitions, 759 flow [2023-11-06 22:25:44,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:25:44,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:25:44,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3167 transitions. [2023-11-06 22:25:44,393 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4956181533646322 [2023-11-06 22:25:44,394 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3167 transitions. [2023-11-06 22:25:44,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3167 transitions. [2023-11-06 22:25:44,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:25:44,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3167 transitions. [2023-11-06 22:25:44,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1055.6666666666667) internal successors, (3167), 3 states have internal predecessors, (3167), 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) [2023-11-06 22:25:44,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2130.0) internal successors, (8520), 4 states have internal predecessors, (8520), 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) [2023-11-06 22:25:44,430 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2130.0) internal successors, (8520), 4 states have internal predecessors, (8520), 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) [2023-11-06 22:25:44,431 INFO L175 Difference]: Start difference. First operand has 250 places, 256 transitions, 527 flow. Second operand 3 states and 3167 transitions. [2023-11-06 22:25:44,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 277 transitions, 759 flow [2023-11-06 22:25:44,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 277 transitions, 759 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:25:44,438 INFO L231 Difference]: Finished difference. Result has 249 places, 254 transitions, 533 flow [2023-11-06 22:25:44,439 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2130, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=533, PETRI_PLACES=249, PETRI_TRANSITIONS=254} [2023-11-06 22:25:44,440 INFO L281 CegarLoopForPetriNet]: 316 programPoint places, -67 predicate places. [2023-11-06 22:25:44,441 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 254 transitions, 533 flow [2023-11-06 22:25:44,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1027.0) internal successors, (3081), 3 states have internal predecessors, (3081), 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) [2023-11-06 22:25:44,443 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:25:44,443 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:25:44,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:25:44,448 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-06 22:25:44,448 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:44,448 INFO L85 PathProgramCache]: Analyzing trace with hash 710831904, now seen corresponding path program 1 times [2023-11-06 22:25:44,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:25:44,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420634033] [2023-11-06 22:25:44,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:44,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:25:44,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:44,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:25:44,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:25:44,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420634033] [2023-11-06 22:25:44,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420634033] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:25:44,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:25:44,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:25:44,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024250631] [2023-11-06 22:25:44,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:25:44,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:25:44,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:25:44,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:25:44,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:25:44,627 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1005 out of 2130 [2023-11-06 22:25:44,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 254 transitions, 533 flow. Second operand has 3 states, 3 states have (on average 1008.3333333333334) internal successors, (3025), 3 states have internal predecessors, (3025), 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) [2023-11-06 22:25:44,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:25:44,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1005 of 2130 [2023-11-06 22:25:44,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:25:53,124 INFO L124 PetriNetUnfolderBase]: 22744/71495 cut-off events. [2023-11-06 22:25:53,124 INFO L125 PetriNetUnfolderBase]: For 626/626 co-relation queries the response was YES. [2023-11-06 22:25:53,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103992 conditions, 71495 events. 22744/71495 cut-off events. For 626/626 co-relation queries the response was YES. Maximal size of possible extension queue 1603. Compared 965707 event pairs, 19272 based on Foata normal form. 0/59582 useless extension candidates. Maximal degree in co-relation 103987. Up to 31727 conditions per place. [2023-11-06 22:25:53,648 INFO L140 encePairwiseOnDemand]: 2123/2130 looper letters, 74 selfloop transitions, 1 changer transitions 0/248 dead transitions. [2023-11-06 22:25:53,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 248 transitions, 671 flow [2023-11-06 22:25:53,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:25:53,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:25:53,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3095 transitions. [2023-11-06 22:25:53,660 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4843505477308294 [2023-11-06 22:25:53,660 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3095 transitions. [2023-11-06 22:25:53,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3095 transitions. [2023-11-06 22:25:53,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:25:53,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3095 transitions. [2023-11-06 22:25:53,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1031.6666666666667) internal successors, (3095), 3 states have internal predecessors, (3095), 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) [2023-11-06 22:25:53,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2130.0) internal successors, (8520), 4 states have internal predecessors, (8520), 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) [2023-11-06 22:25:53,689 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2130.0) internal successors, (8520), 4 states have internal predecessors, (8520), 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) [2023-11-06 22:25:53,689 INFO L175 Difference]: Start difference. First operand has 249 places, 254 transitions, 533 flow. Second operand 3 states and 3095 transitions. [2023-11-06 22:25:53,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 248 transitions, 671 flow [2023-11-06 22:25:53,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 248 transitions, 671 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:25:53,695 INFO L231 Difference]: Finished difference. Result has 245 places, 248 transitions, 523 flow [2023-11-06 22:25:53,696 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2130, PETRI_DIFFERENCE_MINUEND_FLOW=521, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=523, PETRI_PLACES=245, PETRI_TRANSITIONS=248} [2023-11-06 22:25:53,697 INFO L281 CegarLoopForPetriNet]: 316 programPoint places, -71 predicate places. [2023-11-06 22:25:53,697 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 248 transitions, 523 flow [2023-11-06 22:25:53,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1008.3333333333334) internal successors, (3025), 3 states have internal predecessors, (3025), 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) [2023-11-06 22:25:53,699 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:25:53,699 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:25:53,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:25:53,700 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-06 22:25:53,700 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:53,700 INFO L85 PathProgramCache]: Analyzing trace with hash 486621918, now seen corresponding path program 1 times [2023-11-06 22:25:53,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:25:53,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936601433] [2023-11-06 22:25:53,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:53,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:25:53,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:53,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:25:53,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:25:53,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936601433] [2023-11-06 22:25:53,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936601433] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:25:53,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:25:53,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:25:53,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652650426] [2023-11-06 22:25:53,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:25:53,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:25:53,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:25:53,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:25:53,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:25:53,799 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1005 out of 2130 [2023-11-06 22:25:53,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 248 transitions, 523 flow. Second operand has 3 states, 3 states have (on average 1009.0) internal successors, (3027), 3 states have internal predecessors, (3027), 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) [2023-11-06 22:25:53,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:25:53,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1005 of 2130 [2023-11-06 22:25:53,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:26:02,776 INFO L124 PetriNetUnfolderBase]: 27385/73695 cut-off events. [2023-11-06 22:26:02,776 INFO L125 PetriNetUnfolderBase]: For 759/759 co-relation queries the response was YES. [2023-11-06 22:26:03,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112879 conditions, 73695 events. 27385/73695 cut-off events. For 759/759 co-relation queries the response was YES. Maximal size of possible extension queue 1552. Compared 922820 event pairs, 23645 based on Foata normal form. 0/62775 useless extension candidates. Maximal degree in co-relation 112873. Up to 38230 conditions per place. [2023-11-06 22:26:03,277 INFO L140 encePairwiseOnDemand]: 2123/2130 looper letters, 75 selfloop transitions, 1 changer transitions 0/242 dead transitions. [2023-11-06 22:26:03,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 242 transitions, 663 flow [2023-11-06 22:26:03,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:26:03,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:26:03,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3096 transitions. [2023-11-06 22:26:03,288 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48450704225352115 [2023-11-06 22:26:03,288 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3096 transitions. [2023-11-06 22:26:03,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3096 transitions. [2023-11-06 22:26:03,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:26:03,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3096 transitions. [2023-11-06 22:26:03,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1032.0) internal successors, (3096), 3 states have internal predecessors, (3096), 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) [2023-11-06 22:26:03,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2130.0) internal successors, (8520), 4 states have internal predecessors, (8520), 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) [2023-11-06 22:26:03,312 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2130.0) internal successors, (8520), 4 states have internal predecessors, (8520), 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) [2023-11-06 22:26:03,312 INFO L175 Difference]: Start difference. First operand has 245 places, 248 transitions, 523 flow. Second operand 3 states and 3096 transitions. [2023-11-06 22:26:03,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 242 transitions, 663 flow [2023-11-06 22:26:03,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 242 transitions, 662 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:26:03,318 INFO L231 Difference]: Finished difference. Result has 240 places, 242 transitions, 512 flow [2023-11-06 22:26:03,319 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2130, PETRI_DIFFERENCE_MINUEND_FLOW=510, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=512, PETRI_PLACES=240, PETRI_TRANSITIONS=242} [2023-11-06 22:26:03,320 INFO L281 CegarLoopForPetriNet]: 316 programPoint places, -76 predicate places. [2023-11-06 22:26:03,320 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 242 transitions, 512 flow [2023-11-06 22:26:03,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1009.0) internal successors, (3027), 3 states have internal predecessors, (3027), 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) [2023-11-06 22:26:03,321 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:26:03,321 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:26:03,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:26:03,322 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-06 22:26:03,322 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:26:03,322 INFO L85 PathProgramCache]: Analyzing trace with hash 67695668, now seen corresponding path program 1 times [2023-11-06 22:26:03,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:26:03,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897795100] [2023-11-06 22:26:03,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:26:03,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:26:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:26:03,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:26:03,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:26:03,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897795100] [2023-11-06 22:26:03,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897795100] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:26:03,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:26:03,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:26:03,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267154822] [2023-11-06 22:26:03,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:26:03,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:26:03,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:26:03,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:26:03,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:26:03,557 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1012 out of 2130 [2023-11-06 22:26:03,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 242 transitions, 512 flow. Second operand has 3 states, 3 states have (on average 1016.3333333333334) internal successors, (3049), 3 states have internal predecessors, (3049), 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) [2023-11-06 22:26:03,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:26:03,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1012 of 2130 [2023-11-06 22:26:03,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:26:08,172 INFO L124 PetriNetUnfolderBase]: 12031/38422 cut-off events. [2023-11-06 22:26:08,172 INFO L125 PetriNetUnfolderBase]: For 495/495 co-relation queries the response was YES. [2023-11-06 22:26:08,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55780 conditions, 38422 events. 12031/38422 cut-off events. For 495/495 co-relation queries the response was YES. Maximal size of possible extension queue 959. Compared 478909 event pairs, 9827 based on Foata normal form. 0/31607 useless extension candidates. Maximal degree in co-relation 55774. Up to 16781 conditions per place. [2023-11-06 22:26:08,516 INFO L140 encePairwiseOnDemand]: 2127/2130 looper letters, 63 selfloop transitions, 2 changer transitions 0/243 dead transitions. [2023-11-06 22:26:08,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 243 transitions, 644 flow [2023-11-06 22:26:08,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:26:08,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:26:08,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3101 transitions. [2023-11-06 22:26:08,528 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48528951486697963 [2023-11-06 22:26:08,528 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3101 transitions. [2023-11-06 22:26:08,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3101 transitions. [2023-11-06 22:26:08,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:26:08,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3101 transitions. [2023-11-06 22:26:08,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1033.6666666666667) internal successors, (3101), 3 states have internal predecessors, (3101), 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) [2023-11-06 22:26:08,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2130.0) internal successors, (8520), 4 states have internal predecessors, (8520), 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) [2023-11-06 22:26:08,555 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2130.0) internal successors, (8520), 4 states have internal predecessors, (8520), 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) [2023-11-06 22:26:08,556 INFO L175 Difference]: Start difference. First operand has 240 places, 242 transitions, 512 flow. Second operand 3 states and 3101 transitions. [2023-11-06 22:26:08,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 243 transitions, 644 flow [2023-11-06 22:26:08,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 243 transitions, 643 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:26:08,562 INFO L231 Difference]: Finished difference. Result has 242 places, 243 transitions, 523 flow [2023-11-06 22:26:08,562 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2130, PETRI_DIFFERENCE_MINUEND_FLOW=511, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=523, PETRI_PLACES=242, PETRI_TRANSITIONS=243} [2023-11-06 22:26:08,563 INFO L281 CegarLoopForPetriNet]: 316 programPoint places, -74 predicate places. [2023-11-06 22:26:08,564 INFO L495 AbstractCegarLoop]: Abstraction has has 242 places, 243 transitions, 523 flow [2023-11-06 22:26:08,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1016.3333333333334) internal successors, (3049), 3 states have internal predecessors, (3049), 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) [2023-11-06 22:26:08,565 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:26:08,565 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:26:08,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:26:08,566 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-06 22:26:08,566 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:26:08,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1535977973, now seen corresponding path program 1 times [2023-11-06 22:26:08,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:26:08,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054612104] [2023-11-06 22:26:08,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:26:08,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:26:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:26:08,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:26:08,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:26:08,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054612104] [2023-11-06 22:26:08,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054612104] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:26:08,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:26:08,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:26:08,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807922018] [2023-11-06 22:26:08,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:26:08,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:26:08,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:26:08,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:26:08,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:26:09,257 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1016 out of 2130 [2023-11-06 22:26:09,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 243 transitions, 523 flow. Second operand has 4 states, 4 states have (on average 1019.5) internal successors, (4078), 4 states have internal predecessors, (4078), 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) [2023-11-06 22:26:09,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:26:09,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1016 of 2130 [2023-11-06 22:26:09,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand