./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/unroll-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_81b1285d-6758-4e79-91b7-e48811717965/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b1285d-6758-4e79-91b7-e48811717965/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b1285d-6758-4e79-91b7-e48811717965/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b1285d-6758-4e79-91b7-e48811717965/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/unroll-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b1285d-6758-4e79-91b7-e48811717965/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b1285d-6758-4e79-91b7-e48811717965/bin/uautomizer-verify-VRDe98Ueme --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 8c7125507f231f46c946ebcd57e8b56859ee58b969eed99ccdbcf88141d9e219 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:54:03,211 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:54:03,332 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b1285d-6758-4e79-91b7-e48811717965/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 11:54:03,346 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:54:03,347 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:54:03,385 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:54:03,386 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:54:03,386 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:54:03,388 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:54:03,393 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:54:03,394 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:54:03,395 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:54:03,396 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:54:03,398 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:54:03,398 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:54:03,399 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:54:03,399 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:54:03,399 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:54:03,400 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:54:03,400 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:54:03,400 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:54:03,404 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:54:03,404 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 11:54:03,405 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:54:03,405 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:54:03,406 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:54:03,406 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:54:03,407 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:54:03,407 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:54:03,408 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:54:03,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:54:03,410 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:54:03,410 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:54:03,421 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:54:03,421 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:54:03,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:54:03,422 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:54:03,422 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:54:03,422 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:54:03,423 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:54:03,423 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:54:03,424 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_81b1285d-6758-4e79-91b7-e48811717965/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b1285d-6758-4e79-91b7-e48811717965/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c7125507f231f46c946ebcd57e8b56859ee58b969eed99ccdbcf88141d9e219 [2023-11-26 11:54:03,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:54:03,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:54:03,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:54:03,741 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:54:03,741 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:54:03,743 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b1285d-6758-4e79-91b7-e48811717965/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/unroll-2.wvr.c [2023-11-26 11:54:06,989 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:54:07,214 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:54:07,215 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b1285d-6758-4e79-91b7-e48811717965/sv-benchmarks/c/weaver/unroll-2.wvr.c [2023-11-26 11:54:07,225 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b1285d-6758-4e79-91b7-e48811717965/bin/uautomizer-verify-VRDe98Ueme/data/a1d878346/1e661689ae44471d99c4cf6432ab7c0c/FLAGd3fa3a2a5 [2023-11-26 11:54:07,242 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b1285d-6758-4e79-91b7-e48811717965/bin/uautomizer-verify-VRDe98Ueme/data/a1d878346/1e661689ae44471d99c4cf6432ab7c0c [2023-11-26 11:54:07,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:54:07,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:54:07,248 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:54:07,249 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:54:07,255 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:54:07,256 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:54:07" (1/1) ... [2023-11-26 11:54:07,257 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@199c73be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:07, skipping insertion in model container [2023-11-26 11:54:07,258 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:54:07" (1/1) ... [2023-11-26 11:54:07,286 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:54:07,515 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:54:07,525 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:54:07,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:54:07,591 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:54:07,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:07 WrapperNode [2023-11-26 11:54:07,592 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:54:07,593 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:54:07,593 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:54:07,593 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:54:07,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:07" (1/1) ... [2023-11-26 11:54:07,627 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:07" (1/1) ... [2023-11-26 11:54:07,660 INFO L138 Inliner]: procedures = 24, calls = 33, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 253 [2023-11-26 11:54:07,660 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:54:07,661 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:54:07,661 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:54:07,661 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:54:07,671 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:07" (1/1) ... [2023-11-26 11:54:07,671 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:07" (1/1) ... [2023-11-26 11:54:07,677 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:07" (1/1) ... [2023-11-26 11:54:07,677 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:07" (1/1) ... [2023-11-26 11:54:07,692 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:07" (1/1) ... [2023-11-26 11:54:07,696 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:07" (1/1) ... [2023-11-26 11:54:07,699 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:07" (1/1) ... [2023-11-26 11:54:07,701 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:07" (1/1) ... [2023-11-26 11:54:07,705 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:54:07,706 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:54:07,706 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:54:07,706 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:54:07,707 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:07" (1/1) ... [2023-11-26 11:54:07,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:54:07,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b1285d-6758-4e79-91b7-e48811717965/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:54:07,740 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b1285d-6758-4e79-91b7-e48811717965/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:54:07,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b1285d-6758-4e79-91b7-e48811717965/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:54:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:54:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 11:54:07,786 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 11:54:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 11:54:07,786 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 11:54:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 11:54:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:54:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 11:54:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:54:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:54:07,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:54:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 11:54:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:54:07,789 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 11:54:07,908 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:54:07,911 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:54:08,512 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:54:08,531 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:54:08,532 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-26 11:54:08,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:54:08 BoogieIcfgContainer [2023-11-26 11:54:08,534 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:54:08,537 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:54:08,537 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:54:08,541 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:54:08,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:54:07" (1/3) ... [2023-11-26 11:54:08,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@768c74d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:54:08, skipping insertion in model container [2023-11-26 11:54:08,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:07" (2/3) ... [2023-11-26 11:54:08,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@768c74d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:54:08, skipping insertion in model container [2023-11-26 11:54:08,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:54:08" (3/3) ... [2023-11-26 11:54:08,544 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-2.wvr.c [2023-11-26 11:54:08,554 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:54:08,599 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:54:08,604 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2023-11-26 11:54:08,604 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:54:08,718 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-26 11:54:08,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 314 places, 324 transitions, 662 flow [2023-11-26 11:54:08,891 INFO L124 PetriNetUnfolderBase]: 17/322 cut-off events. [2023-11-26 11:54:08,891 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-26 11:54:08,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 322 events. 17/322 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 517 event pairs, 0 based on Foata normal form. 0/271 useless extension candidates. Maximal degree in co-relation 177. Up to 2 conditions per place. [2023-11-26 11:54:08,901 INFO L82 GeneralOperation]: Start removeDead. Operand has 314 places, 324 transitions, 662 flow [2023-11-26 11:54:08,910 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 292 places, 301 transitions, 614 flow [2023-11-26 11:54:08,921 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:54:08,928 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;@188a6d4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:54:08,929 INFO L358 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2023-11-26 11:54:08,934 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:54:08,935 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2023-11-26 11:54:08,935 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:54:08,935 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:08,936 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:08,936 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-26 11:54:08,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:08,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1999538098, now seen corresponding path program 1 times [2023-11-26 11:54:08,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:08,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254368688] [2023-11-26 11:54:08,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:08,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:09,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:09,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:09,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:09,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254368688] [2023-11-26 11:54:09,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254368688] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:09,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:09,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:09,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875753475] [2023-11-26 11:54:09,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:09,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:54:09,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:09,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:54:09,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:54:09,352 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 324 [2023-11-26 11:54:09,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 301 transitions, 614 flow. Second operand has 3 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 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) [2023-11-26 11:54:09,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:09,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 324 [2023-11-26 11:54:09,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:09,539 INFO L124 PetriNetUnfolderBase]: 13/406 cut-off events. [2023-11-26 11:54:09,539 INFO L125 PetriNetUnfolderBase]: For 15/18 co-relation queries the response was YES. [2023-11-26 11:54:09,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 406 events. 13/406 cut-off events. For 15/18 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1198 event pairs, 3 based on Foata normal form. 11/348 useless extension candidates. Maximal degree in co-relation 284. Up to 19 conditions per place. [2023-11-26 11:54:09,550 INFO L140 encePairwiseOnDemand]: 311/324 looper letters, 10 selfloop transitions, 2 changer transitions 4/290 dead transitions. [2023-11-26 11:54:09,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 290 transitions, 616 flow [2023-11-26 11:54:09,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:54:09,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:54:09,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 917 transitions. [2023-11-26 11:54:09,577 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9434156378600823 [2023-11-26 11:54:09,578 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 917 transitions. [2023-11-26 11:54:09,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 917 transitions. [2023-11-26 11:54:09,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:09,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 917 transitions. [2023-11-26 11:54:09,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 305.6666666666667) internal successors, (917), 3 states have internal predecessors, (917), 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) [2023-11-26 11:54:09,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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) [2023-11-26 11:54:09,610 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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) [2023-11-26 11:54:09,612 INFO L175 Difference]: Start difference. First operand has 292 places, 301 transitions, 614 flow. Second operand 3 states and 917 transitions. [2023-11-26 11:54:09,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 290 transitions, 616 flow [2023-11-26 11:54:09,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 290 transitions, 608 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:54:09,630 INFO L231 Difference]: Finished difference. Result has 289 places, 286 transitions, 580 flow [2023-11-26 11:54:09,634 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=580, PETRI_PLACES=289, PETRI_TRANSITIONS=286} [2023-11-26 11:54:09,638 INFO L281 CegarLoopForPetriNet]: 292 programPoint places, -3 predicate places. [2023-11-26 11:54:09,639 INFO L495 AbstractCegarLoop]: Abstraction has has 289 places, 286 transitions, 580 flow [2023-11-26 11:54:09,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 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) [2023-11-26 11:54:09,641 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:09,641 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:09,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:54:09,645 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-26 11:54:09,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:09,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1162862387, now seen corresponding path program 1 times [2023-11-26 11:54:09,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:09,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228317358] [2023-11-26 11:54:09,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:09,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:09,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:09,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:09,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:09,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228317358] [2023-11-26 11:54:09,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228317358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:09,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:09,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:09,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106188868] [2023-11-26 11:54:09,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:09,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:54:09,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:09,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:54:09,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:54:09,797 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 324 [2023-11-26 11:54:09,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 286 transitions, 580 flow. Second operand has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 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) [2023-11-26 11:54:09,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:09,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 324 [2023-11-26 11:54:09,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:09,902 INFO L124 PetriNetUnfolderBase]: 14/415 cut-off events. [2023-11-26 11:54:09,902 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 11:54:09,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 447 conditions, 415 events. 14/415 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1164 event pairs, 5 based on Foata normal form. 0/350 useless extension candidates. Maximal degree in co-relation 419. Up to 23 conditions per place. [2023-11-26 11:54:09,908 INFO L140 encePairwiseOnDemand]: 321/324 looper letters, 12 selfloop transitions, 2 changer transitions 0/285 dead transitions. [2023-11-26 11:54:09,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 285 transitions, 606 flow [2023-11-26 11:54:09,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:54:09,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:54:09,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 903 transitions. [2023-11-26 11:54:09,912 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9290123456790124 [2023-11-26 11:54:09,912 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 903 transitions. [2023-11-26 11:54:09,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 903 transitions. [2023-11-26 11:54:09,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:09,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 903 transitions. [2023-11-26 11:54:09,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 301.0) internal successors, (903), 3 states have internal predecessors, (903), 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) [2023-11-26 11:54:09,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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) [2023-11-26 11:54:09,922 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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) [2023-11-26 11:54:09,922 INFO L175 Difference]: Start difference. First operand has 289 places, 286 transitions, 580 flow. Second operand 3 states and 903 transitions. [2023-11-26 11:54:09,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 285 transitions, 606 flow [2023-11-26 11:54:09,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 285 transitions, 602 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:54:09,931 INFO L231 Difference]: Finished difference. Result has 284 places, 285 transitions, 578 flow [2023-11-26 11:54:09,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=574, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=578, PETRI_PLACES=284, PETRI_TRANSITIONS=285} [2023-11-26 11:54:09,933 INFO L281 CegarLoopForPetriNet]: 292 programPoint places, -8 predicate places. [2023-11-26 11:54:09,933 INFO L495 AbstractCegarLoop]: Abstraction has has 284 places, 285 transitions, 578 flow [2023-11-26 11:54:09,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 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) [2023-11-26 11:54:09,935 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:09,935 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:09,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:54:09,936 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-26 11:54:09,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:09,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1308465579, now seen corresponding path program 1 times [2023-11-26 11:54:09,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:09,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622699867] [2023-11-26 11:54:09,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:09,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:09,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:09,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:09,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:10,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622699867] [2023-11-26 11:54:10,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622699867] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:10,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:10,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:10,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668736343] [2023-11-26 11:54:10,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:10,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:54:10,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:10,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:54:10,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:54:10,032 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 292 out of 324 [2023-11-26 11:54:10,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 285 transitions, 578 flow. Second operand has 3 states, 3 states have (on average 293.0) internal successors, (879), 3 states have internal predecessors, (879), 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) [2023-11-26 11:54:10,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:10,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 292 of 324 [2023-11-26 11:54:10,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:10,277 INFO L124 PetriNetUnfolderBase]: 45/761 cut-off events. [2023-11-26 11:54:10,277 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-26 11:54:10,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 828 conditions, 761 events. 45/761 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3114 event pairs, 14 based on Foata normal form. 0/631 useless extension candidates. Maximal degree in co-relation 792. Up to 57 conditions per place. [2023-11-26 11:54:10,289 INFO L140 encePairwiseOnDemand]: 318/324 looper letters, 14 selfloop transitions, 1 changer transitions 0/280 dead transitions. [2023-11-26 11:54:10,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 280 transitions, 598 flow [2023-11-26 11:54:10,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:54:10,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:54:10,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 896 transitions. [2023-11-26 11:54:10,294 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9218106995884774 [2023-11-26 11:54:10,294 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 896 transitions. [2023-11-26 11:54:10,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 896 transitions. [2023-11-26 11:54:10,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:10,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 896 transitions. [2023-11-26 11:54:10,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 298.6666666666667) internal successors, (896), 3 states have internal predecessors, (896), 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) [2023-11-26 11:54:10,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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) [2023-11-26 11:54:10,303 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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) [2023-11-26 11:54:10,304 INFO L175 Difference]: Start difference. First operand has 284 places, 285 transitions, 578 flow. Second operand 3 states and 896 transitions. [2023-11-26 11:54:10,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 280 transitions, 598 flow [2023-11-26 11:54:10,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 280 transitions, 594 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:54:10,313 INFO L231 Difference]: Finished difference. Result has 279 places, 280 transitions, 566 flow [2023-11-26 11:54:10,314 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=566, PETRI_PLACES=279, PETRI_TRANSITIONS=280} [2023-11-26 11:54:10,317 INFO L281 CegarLoopForPetriNet]: 292 programPoint places, -13 predicate places. [2023-11-26 11:54:10,317 INFO L495 AbstractCegarLoop]: Abstraction has has 279 places, 280 transitions, 566 flow [2023-11-26 11:54:10,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 293.0) internal successors, (879), 3 states have internal predecessors, (879), 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) [2023-11-26 11:54:10,319 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:10,319 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:10,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:54:10,320 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-26 11:54:10,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:10,321 INFO L85 PathProgramCache]: Analyzing trace with hash 602194675, now seen corresponding path program 1 times [2023-11-26 11:54:10,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:10,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461058398] [2023-11-26 11:54:10,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:10,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:10,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:10,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:10,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461058398] [2023-11-26 11:54:10,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461058398] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:10,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:10,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:10,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884023852] [2023-11-26 11:54:10,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:10,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:54:10,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:10,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:54:10,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:54:10,503 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 324 [2023-11-26 11:54:10,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 280 transitions, 566 flow. Second operand has 3 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 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) [2023-11-26 11:54:10,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:10,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 324 [2023-11-26 11:54:10,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:10,621 INFO L124 PetriNetUnfolderBase]: 14/407 cut-off events. [2023-11-26 11:54:10,622 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 11:54:10,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 407 events. 14/407 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1095 event pairs, 5 based on Foata normal form. 0/349 useless extension candidates. Maximal degree in co-relation 400. Up to 21 conditions per place. [2023-11-26 11:54:10,626 INFO L140 encePairwiseOnDemand]: 321/324 looper letters, 10 selfloop transitions, 2 changer transitions 0/279 dead transitions. [2023-11-26 11:54:10,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 279 transitions, 588 flow [2023-11-26 11:54:10,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:54:10,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:54:10,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 907 transitions. [2023-11-26 11:54:10,630 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9331275720164609 [2023-11-26 11:54:10,630 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 907 transitions. [2023-11-26 11:54:10,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 907 transitions. [2023-11-26 11:54:10,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:10,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 907 transitions. [2023-11-26 11:54:10,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 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) [2023-11-26 11:54:10,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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) [2023-11-26 11:54:10,639 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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) [2023-11-26 11:54:10,639 INFO L175 Difference]: Start difference. First operand has 279 places, 280 transitions, 566 flow. Second operand 3 states and 907 transitions. [2023-11-26 11:54:10,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 279 transitions, 588 flow [2023-11-26 11:54:10,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 279 transitions, 587 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:54:10,646 INFO L231 Difference]: Finished difference. Result has 279 places, 279 transitions, 567 flow [2023-11-26 11:54:10,647 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=563, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=567, PETRI_PLACES=279, PETRI_TRANSITIONS=279} [2023-11-26 11:54:10,649 INFO L281 CegarLoopForPetriNet]: 292 programPoint places, -13 predicate places. [2023-11-26 11:54:10,649 INFO L495 AbstractCegarLoop]: Abstraction has has 279 places, 279 transitions, 567 flow [2023-11-26 11:54:10,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 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) [2023-11-26 11:54:10,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:10,650 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:10,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:54:10,651 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-26 11:54:10,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:10,651 INFO L85 PathProgramCache]: Analyzing trace with hash -627251288, now seen corresponding path program 1 times [2023-11-26 11:54:10,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:10,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118575321] [2023-11-26 11:54:10,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:10,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:10,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:11,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:11,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:11,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118575321] [2023-11-26 11:54:11,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118575321] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:11,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:11,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:54:11,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72637150] [2023-11-26 11:54:11,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:11,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:54:11,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:11,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:54:11,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:54:11,623 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 324 [2023-11-26 11:54:11,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 279 transitions, 567 flow. Second operand has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 states have internal predecessors, (1653), 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) [2023-11-26 11:54:11,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:11,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 324 [2023-11-26 11:54:11,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:12,560 INFO L124 PetriNetUnfolderBase]: 538/3933 cut-off events. [2023-11-26 11:54:12,560 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-11-26 11:54:12,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4697 conditions, 3933 events. 538/3933 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 34581 event pairs, 380 based on Foata normal form. 0/3221 useless extension candidates. Maximal degree in co-relation 4662. Up to 748 conditions per place. [2023-11-26 11:54:12,606 INFO L140 encePairwiseOnDemand]: 318/324 looper letters, 32 selfloop transitions, 5 changer transitions 0/278 dead transitions. [2023-11-26 11:54:12,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 278 transitions, 639 flow [2023-11-26 11:54:12,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:54:12,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:54:12,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1682 transitions. [2023-11-26 11:54:12,617 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8652263374485597 [2023-11-26 11:54:12,618 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1682 transitions. [2023-11-26 11:54:12,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1682 transitions. [2023-11-26 11:54:12,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:12,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1682 transitions. [2023-11-26 11:54:12,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 280.3333333333333) internal successors, (1682), 6 states have internal predecessors, (1682), 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) [2023-11-26 11:54:12,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 324.0) internal successors, (2268), 7 states have internal predecessors, (2268), 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) [2023-11-26 11:54:12,633 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 324.0) internal successors, (2268), 7 states have internal predecessors, (2268), 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) [2023-11-26 11:54:12,633 INFO L175 Difference]: Start difference. First operand has 279 places, 279 transitions, 567 flow. Second operand 6 states and 1682 transitions. [2023-11-26 11:54:12,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 278 transitions, 639 flow [2023-11-26 11:54:12,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 278 transitions, 635 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:54:12,640 INFO L231 Difference]: Finished difference. Result has 281 places, 278 transitions, 571 flow [2023-11-26 11:54:12,641 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=561, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=571, PETRI_PLACES=281, PETRI_TRANSITIONS=278} [2023-11-26 11:54:12,644 INFO L281 CegarLoopForPetriNet]: 292 programPoint places, -11 predicate places. [2023-11-26 11:54:12,645 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 278 transitions, 571 flow [2023-11-26 11:54:12,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 275.5) internal successors, (1653), 6 states have internal predecessors, (1653), 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) [2023-11-26 11:54:12,646 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:12,647 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:12,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:54:12,648 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-26 11:54:12,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:12,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1309465587, now seen corresponding path program 1 times [2023-11-26 11:54:12,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:12,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474379081] [2023-11-26 11:54:12,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:12,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:12,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:12,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:12,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:12,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474379081] [2023-11-26 11:54:12,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474379081] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:12,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:12,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:12,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642481297] [2023-11-26 11:54:12,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:12,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:54:12,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:12,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:54:12,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:54:12,740 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 324 [2023-11-26 11:54:12,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 278 transitions, 571 flow. Second operand has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 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) [2023-11-26 11:54:12,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:12,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 324 [2023-11-26 11:54:12,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:12,898 INFO L124 PetriNetUnfolderBase]: 28/669 cut-off events. [2023-11-26 11:54:12,898 INFO L125 PetriNetUnfolderBase]: For 4/13 co-relation queries the response was YES. [2023-11-26 11:54:12,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 715 conditions, 669 events. 28/669 cut-off events. For 4/13 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2811 event pairs, 8 based on Foata normal form. 0/565 useless extension candidates. Maximal degree in co-relation 697. Up to 32 conditions per place. [2023-11-26 11:54:12,904 INFO L140 encePairwiseOnDemand]: 320/324 looper letters, 10 selfloop transitions, 1 changer transitions 0/275 dead transitions. [2023-11-26 11:54:12,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 275 transitions, 587 flow [2023-11-26 11:54:12,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:54:12,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:54:12,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 908 transitions. [2023-11-26 11:54:12,908 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.934156378600823 [2023-11-26 11:54:12,908 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 908 transitions. [2023-11-26 11:54:12,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 908 transitions. [2023-11-26 11:54:12,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:12,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 908 transitions. [2023-11-26 11:54:12,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 302.6666666666667) internal successors, (908), 3 states have internal predecessors, (908), 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) [2023-11-26 11:54:12,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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) [2023-11-26 11:54:12,915 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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) [2023-11-26 11:54:12,915 INFO L175 Difference]: Start difference. First operand has 281 places, 278 transitions, 571 flow. Second operand 3 states and 908 transitions. [2023-11-26 11:54:12,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 275 transitions, 587 flow [2023-11-26 11:54:12,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 275 transitions, 577 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:54:12,922 INFO L231 Difference]: Finished difference. Result has 275 places, 275 transitions, 557 flow [2023-11-26 11:54:12,923 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=555, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=557, PETRI_PLACES=275, PETRI_TRANSITIONS=275} [2023-11-26 11:54:12,924 INFO L281 CegarLoopForPetriNet]: 292 programPoint places, -17 predicate places. [2023-11-26 11:54:12,924 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 275 transitions, 557 flow [2023-11-26 11:54:12,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 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) [2023-11-26 11:54:12,925 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:12,925 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:12,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:54:12,925 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-26 11:54:12,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:12,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1330616131, now seen corresponding path program 1 times [2023-11-26 11:54:12,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:12,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708179371] [2023-11-26 11:54:12,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:12,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:12,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:12,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:12,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:12,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708179371] [2023-11-26 11:54:12,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708179371] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:12,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:12,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:12,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905994127] [2023-11-26 11:54:12,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:12,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:54:12,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:12,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:54:12,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:54:13,006 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 324 [2023-11-26 11:54:13,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 275 transitions, 557 flow. Second operand has 3 states, 3 states have (on average 296.0) internal successors, (888), 3 states have internal predecessors, (888), 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) [2023-11-26 11:54:13,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:13,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 324 [2023-11-26 11:54:13,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:13,067 INFO L124 PetriNetUnfolderBase]: 16/326 cut-off events. [2023-11-26 11:54:13,068 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-26 11:54:13,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 326 events. 16/326 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 732 event pairs, 1 based on Foata normal form. 1/295 useless extension candidates. Maximal degree in co-relation 334. Up to 21 conditions per place. [2023-11-26 11:54:13,072 INFO L140 encePairwiseOnDemand]: 317/324 looper letters, 11 selfloop transitions, 3 changer transitions 0/272 dead transitions. [2023-11-26 11:54:13,072 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 272 transitions, 580 flow [2023-11-26 11:54:13,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:54:13,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:54:13,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 903 transitions. [2023-11-26 11:54:13,076 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9290123456790124 [2023-11-26 11:54:13,076 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 903 transitions. [2023-11-26 11:54:13,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 903 transitions. [2023-11-26 11:54:13,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:13,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 903 transitions. [2023-11-26 11:54:13,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 301.0) internal successors, (903), 3 states have internal predecessors, (903), 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) [2023-11-26 11:54:13,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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) [2023-11-26 11:54:13,084 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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) [2023-11-26 11:54:13,084 INFO L175 Difference]: Start difference. First operand has 275 places, 275 transitions, 557 flow. Second operand 3 states and 903 transitions. [2023-11-26 11:54:13,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 272 transitions, 580 flow [2023-11-26 11:54:13,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 272 transitions, 579 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:54:13,092 INFO L231 Difference]: Finished difference. Result has 272 places, 271 transitions, 554 flow [2023-11-26 11:54:13,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=554, PETRI_PLACES=272, PETRI_TRANSITIONS=271} [2023-11-26 11:54:13,093 INFO L281 CegarLoopForPetriNet]: 292 programPoint places, -20 predicate places. [2023-11-26 11:54:13,093 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 271 transitions, 554 flow [2023-11-26 11:54:13,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 296.0) internal successors, (888), 3 states have internal predecessors, (888), 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) [2023-11-26 11:54:13,094 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:13,095 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:13,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:54:13,095 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-26 11:54:13,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:13,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1766924299, now seen corresponding path program 1 times [2023-11-26 11:54:13,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:13,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060746845] [2023-11-26 11:54:13,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:13,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:13,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:13,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:13,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:13,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060746845] [2023-11-26 11:54:13,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060746845] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:13,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:13,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:13,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639964809] [2023-11-26 11:54:13,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:13,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:54:13,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:13,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:54:13,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:54:13,191 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 324 [2023-11-26 11:54:13,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 271 transitions, 554 flow. Second operand has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 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) [2023-11-26 11:54:13,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:13,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 324 [2023-11-26 11:54:13,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:13,262 INFO L124 PetriNetUnfolderBase]: 24/374 cut-off events. [2023-11-26 11:54:13,262 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-11-26 11:54:13,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 433 conditions, 374 events. 24/374 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1098 event pairs, 11 based on Foata normal form. 1/342 useless extension candidates. Maximal degree in co-relation 398. Up to 38 conditions per place. [2023-11-26 11:54:13,266 INFO L140 encePairwiseOnDemand]: 312/324 looper letters, 14 selfloop transitions, 4 changer transitions 5/265 dead transitions. [2023-11-26 11:54:13,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 265 transitions, 583 flow [2023-11-26 11:54:13,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:54:13,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:54:13,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 882 transitions. [2023-11-26 11:54:13,270 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9074074074074074 [2023-11-26 11:54:13,270 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 882 transitions. [2023-11-26 11:54:13,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 882 transitions. [2023-11-26 11:54:13,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:13,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 882 transitions. [2023-11-26 11:54:13,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 294.0) internal successors, (882), 3 states have internal predecessors, (882), 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) [2023-11-26 11:54:13,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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) [2023-11-26 11:54:13,278 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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) [2023-11-26 11:54:13,278 INFO L175 Difference]: Start difference. First operand has 272 places, 271 transitions, 554 flow. Second operand 3 states and 882 transitions. [2023-11-26 11:54:13,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 265 transitions, 583 flow [2023-11-26 11:54:13,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 265 transitions, 577 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:54:13,286 INFO L231 Difference]: Finished difference. Result has 265 places, 259 transitions, 531 flow [2023-11-26 11:54:13,286 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=531, PETRI_PLACES=265, PETRI_TRANSITIONS=259} [2023-11-26 11:54:13,289 INFO L281 CegarLoopForPetriNet]: 292 programPoint places, -27 predicate places. [2023-11-26 11:54:13,289 INFO L495 AbstractCegarLoop]: Abstraction has has 265 places, 259 transitions, 531 flow [2023-11-26 11:54:13,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 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) [2023-11-26 11:54:13,290 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:13,290 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:13,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:54:13,291 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-26 11:54:13,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:13,291 INFO L85 PathProgramCache]: Analyzing trace with hash 575649876, now seen corresponding path program 1 times [2023-11-26 11:54:13,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:13,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319902577] [2023-11-26 11:54:13,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:13,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:13,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:13,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:13,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319902577] [2023-11-26 11:54:13,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319902577] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:13,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:13,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:54:13,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474411054] [2023-11-26 11:54:13,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:13,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:54:13,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:13,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:54:13,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:54:14,210 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 324 [2023-11-26 11:54:14,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 259 transitions, 531 flow. Second operand has 6 states, 6 states have (on average 295.5) internal successors, (1773), 6 states have internal predecessors, (1773), 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) [2023-11-26 11:54:14,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:14,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 324 [2023-11-26 11:54:14,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:14,259 INFO L124 PetriNetUnfolderBase]: 6/258 cut-off events. [2023-11-26 11:54:14,259 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:54:14,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 258 events. 6/258 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 328 event pairs, 0 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 246. Up to 9 conditions per place. [2023-11-26 11:54:14,263 INFO L140 encePairwiseOnDemand]: 319/324 looper letters, 10 selfloop transitions, 4 changer transitions 0/258 dead transitions. [2023-11-26 11:54:14,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 258 transitions, 557 flow [2023-11-26 11:54:14,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:54:14,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:54:14,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1779 transitions. [2023-11-26 11:54:14,269 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9151234567901234 [2023-11-26 11:54:14,269 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1779 transitions. [2023-11-26 11:54:14,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1779 transitions. [2023-11-26 11:54:14,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:14,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1779 transitions. [2023-11-26 11:54:14,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 296.5) internal successors, (1779), 6 states have internal predecessors, (1779), 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) [2023-11-26 11:54:14,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 324.0) internal successors, (2268), 7 states have internal predecessors, (2268), 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) [2023-11-26 11:54:14,283 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 324.0) internal successors, (2268), 7 states have internal predecessors, (2268), 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) [2023-11-26 11:54:14,283 INFO L175 Difference]: Start difference. First operand has 265 places, 259 transitions, 531 flow. Second operand 6 states and 1779 transitions. [2023-11-26 11:54:14,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 258 transitions, 557 flow [2023-11-26 11:54:14,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 258 transitions, 549 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:54:14,289 INFO L231 Difference]: Finished difference. Result has 262 places, 258 transitions, 529 flow [2023-11-26 11:54:14,290 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=521, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=529, PETRI_PLACES=262, PETRI_TRANSITIONS=258} [2023-11-26 11:54:14,291 INFO L281 CegarLoopForPetriNet]: 292 programPoint places, -30 predicate places. [2023-11-26 11:54:14,291 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 258 transitions, 529 flow [2023-11-26 11:54:14,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 295.5) internal successors, (1773), 6 states have internal predecessors, (1773), 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) [2023-11-26 11:54:14,292 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:14,293 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:14,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:54:14,293 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-26 11:54:14,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:14,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1859970023, now seen corresponding path program 1 times [2023-11-26 11:54:14,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:14,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384506623] [2023-11-26 11:54:14,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:14,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:14,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:14,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:14,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:14,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384506623] [2023-11-26 11:54:14,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384506623] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:14,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:14,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:14,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730174427] [2023-11-26 11:54:14,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:14,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:54:14,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:14,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:54:14,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:54:14,357 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 324 [2023-11-26 11:54:14,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 258 transitions, 529 flow. Second operand has 3 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 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) [2023-11-26 11:54:14,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:14,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 324 [2023-11-26 11:54:14,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:14,507 INFO L124 PetriNetUnfolderBase]: 43/681 cut-off events. [2023-11-26 11:54:14,507 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-11-26 11:54:14,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 748 conditions, 681 events. 43/681 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2696 event pairs, 4 based on Foata normal form. 0/616 useless extension candidates. Maximal degree in co-relation 713. Up to 50 conditions per place. [2023-11-26 11:54:14,515 INFO L140 encePairwiseOnDemand]: 319/324 looper letters, 12 selfloop transitions, 2 changer transitions 0/259 dead transitions. [2023-11-26 11:54:14,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 259 transitions, 561 flow [2023-11-26 11:54:14,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:54:14,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:54:14,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 911 transitions. [2023-11-26 11:54:14,520 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9372427983539094 [2023-11-26 11:54:14,520 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 911 transitions. [2023-11-26 11:54:14,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 911 transitions. [2023-11-26 11:54:14,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:14,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 911 transitions. [2023-11-26 11:54:14,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 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) [2023-11-26 11:54:14,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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) [2023-11-26 11:54:14,530 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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) [2023-11-26 11:54:14,530 INFO L175 Difference]: Start difference. First operand has 262 places, 258 transitions, 529 flow. Second operand 3 states and 911 transitions. [2023-11-26 11:54:14,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 259 transitions, 561 flow [2023-11-26 11:54:14,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 259 transitions, 554 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:54:14,539 INFO L231 Difference]: Finished difference. Result has 258 places, 257 transitions, 530 flow [2023-11-26 11:54:14,541 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=530, PETRI_PLACES=258, PETRI_TRANSITIONS=257} [2023-11-26 11:54:14,542 INFO L281 CegarLoopForPetriNet]: 292 programPoint places, -34 predicate places. [2023-11-26 11:54:14,542 INFO L495 AbstractCegarLoop]: Abstraction has has 258 places, 257 transitions, 530 flow [2023-11-26 11:54:14,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 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) [2023-11-26 11:54:14,543 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:14,543 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:14,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 11:54:14,544 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-26 11:54:14,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:14,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1129205901, now seen corresponding path program 1 times [2023-11-26 11:54:14,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:14,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885135192] [2023-11-26 11:54:14,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:14,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:14,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:14,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:14,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885135192] [2023-11-26 11:54:14,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885135192] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:14,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:14,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:54:14,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403079005] [2023-11-26 11:54:14,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:14,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:54:14,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:14,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:54:14,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:54:14,751 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 324 [2023-11-26 11:54:14,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 257 transitions, 530 flow. Second operand has 4 states, 4 states have (on average 302.25) internal successors, (1209), 4 states have internal predecessors, (1209), 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) [2023-11-26 11:54:14,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:14,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 324 [2023-11-26 11:54:14,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:14,920 INFO L124 PetriNetUnfolderBase]: 34/797 cut-off events. [2023-11-26 11:54:14,920 INFO L125 PetriNetUnfolderBase]: For 2/3 co-relation queries the response was YES. [2023-11-26 11:54:14,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 871 conditions, 797 events. 34/797 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2942 event pairs, 3 based on Foata normal form. 1/724 useless extension candidates. Maximal degree in co-relation 835. Up to 18 conditions per place. [2023-11-26 11:54:14,930 INFO L140 encePairwiseOnDemand]: 318/324 looper letters, 13 selfloop transitions, 6 changer transitions 0/266 dead transitions. [2023-11-26 11:54:14,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 266 transitions, 590 flow [2023-11-26 11:54:14,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:54:14,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 11:54:14,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1525 transitions. [2023-11-26 11:54:14,935 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.941358024691358 [2023-11-26 11:54:14,935 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1525 transitions. [2023-11-26 11:54:14,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1525 transitions. [2023-11-26 11:54:14,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:14,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1525 transitions. [2023-11-26 11:54:14,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 305.0) internal successors, (1525), 5 states have internal predecessors, (1525), 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) [2023-11-26 11:54:14,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 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) [2023-11-26 11:54:14,947 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 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) [2023-11-26 11:54:14,947 INFO L175 Difference]: Start difference. First operand has 258 places, 257 transitions, 530 flow. Second operand 5 states and 1525 transitions. [2023-11-26 11:54:14,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 266 transitions, 590 flow [2023-11-26 11:54:14,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 266 transitions, 590 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:54:14,954 INFO L231 Difference]: Finished difference. Result has 265 places, 261 transitions, 568 flow [2023-11-26 11:54:14,955 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=568, PETRI_PLACES=265, PETRI_TRANSITIONS=261} [2023-11-26 11:54:14,956 INFO L281 CegarLoopForPetriNet]: 292 programPoint places, -27 predicate places. [2023-11-26 11:54:14,956 INFO L495 AbstractCegarLoop]: Abstraction has has 265 places, 261 transitions, 568 flow [2023-11-26 11:54:14,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 302.25) internal successors, (1209), 4 states have internal predecessors, (1209), 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) [2023-11-26 11:54:14,957 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:14,957 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:14,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 11:54:14,958 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-26 11:54:14,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:14,958 INFO L85 PathProgramCache]: Analyzing trace with hash -51768402, now seen corresponding path program 1 times [2023-11-26 11:54:14,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:14,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37770616] [2023-11-26 11:54:14,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:14,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:15,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:15,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:15,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37770616] [2023-11-26 11:54:15,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37770616] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:15,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:15,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:54:15,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715389681] [2023-11-26 11:54:15,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:15,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:54:15,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:15,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:54:15,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:54:15,931 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 324 [2023-11-26 11:54:15,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 261 transitions, 568 flow. Second operand has 6 states, 6 states have (on average 295.6666666666667) internal successors, (1774), 6 states have internal predecessors, (1774), 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) [2023-11-26 11:54:15,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:15,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 324 [2023-11-26 11:54:15,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:16,059 INFO L124 PetriNetUnfolderBase]: 15/494 cut-off events. [2023-11-26 11:54:16,059 INFO L125 PetriNetUnfolderBase]: For 7/8 co-relation queries the response was YES. [2023-11-26 11:54:16,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 494 events. 15/494 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1040 event pairs, 1 based on Foata normal form. 0/455 useless extension candidates. Maximal degree in co-relation 510. Up to 11 conditions per place. [2023-11-26 11:54:16,073 INFO L140 encePairwiseOnDemand]: 319/324 looper letters, 10 selfloop transitions, 4 changer transitions 0/260 dead transitions. [2023-11-26 11:54:16,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 260 transitions, 594 flow [2023-11-26 11:54:16,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:54:16,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:54:16,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1779 transitions. [2023-11-26 11:54:16,080 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9151234567901234 [2023-11-26 11:54:16,080 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1779 transitions. [2023-11-26 11:54:16,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1779 transitions. [2023-11-26 11:54:16,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:16,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1779 transitions. [2023-11-26 11:54:16,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 296.5) internal successors, (1779), 6 states have internal predecessors, (1779), 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) [2023-11-26 11:54:16,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 324.0) internal successors, (2268), 7 states have internal predecessors, (2268), 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) [2023-11-26 11:54:16,093 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 324.0) internal successors, (2268), 7 states have internal predecessors, (2268), 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) [2023-11-26 11:54:16,093 INFO L175 Difference]: Start difference. First operand has 265 places, 261 transitions, 568 flow. Second operand 6 states and 1779 transitions. [2023-11-26 11:54:16,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 260 transitions, 594 flow [2023-11-26 11:54:16,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 260 transitions, 594 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:54:16,102 INFO L231 Difference]: Finished difference. Result has 269 places, 260 transitions, 574 flow [2023-11-26 11:54:16,103 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=574, PETRI_PLACES=269, PETRI_TRANSITIONS=260} [2023-11-26 11:54:16,104 INFO L281 CegarLoopForPetriNet]: 292 programPoint places, -23 predicate places. [2023-11-26 11:54:16,104 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 260 transitions, 574 flow [2023-11-26 11:54:16,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 295.6666666666667) internal successors, (1774), 6 states have internal predecessors, (1774), 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) [2023-11-26 11:54:16,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:16,106 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:16,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 11:54:16,106 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-26 11:54:16,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:16,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1895007560, now seen corresponding path program 1 times [2023-11-26 11:54:16,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:16,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551691311] [2023-11-26 11:54:16,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:16,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:16,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:16,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:16,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:16,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551691311] [2023-11-26 11:54:16,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551691311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:16,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:16,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:54:16,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306340775] [2023-11-26 11:54:16,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:16,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:54:16,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:16,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:54:16,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:54:17,143 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 324 [2023-11-26 11:54:17,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 260 transitions, 574 flow. Second operand has 6 states, 6 states have (on average 295.5) internal successors, (1773), 6 states have internal predecessors, (1773), 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) [2023-11-26 11:54:17,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:17,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 324 [2023-11-26 11:54:17,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:17,280 INFO L124 PetriNetUnfolderBase]: 30/609 cut-off events. [2023-11-26 11:54:17,280 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-26 11:54:17,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 718 conditions, 609 events. 30/609 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1783 event pairs, 2 based on Foata normal form. 0/562 useless extension candidates. Maximal degree in co-relation 693. Up to 17 conditions per place. [2023-11-26 11:54:17,288 INFO L140 encePairwiseOnDemand]: 318/324 looper letters, 15 selfloop transitions, 6 changer transitions 0/263 dead transitions. [2023-11-26 11:54:17,288 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 263 transitions, 626 flow [2023-11-26 11:54:17,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:54:17,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:54:17,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1785 transitions. [2023-11-26 11:54:17,295 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9182098765432098 [2023-11-26 11:54:17,295 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1785 transitions. [2023-11-26 11:54:17,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1785 transitions. [2023-11-26 11:54:17,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:17,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1785 transitions. [2023-11-26 11:54:17,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 297.5) internal successors, (1785), 6 states have internal predecessors, (1785), 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) [2023-11-26 11:54:17,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 324.0) internal successors, (2268), 7 states have internal predecessors, (2268), 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) [2023-11-26 11:54:17,307 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 324.0) internal successors, (2268), 7 states have internal predecessors, (2268), 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) [2023-11-26 11:54:17,307 INFO L175 Difference]: Start difference. First operand has 269 places, 260 transitions, 574 flow. Second operand 6 states and 1785 transitions. [2023-11-26 11:54:17,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 263 transitions, 626 flow [2023-11-26 11:54:17,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 263 transitions, 619 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:54:17,314 INFO L231 Difference]: Finished difference. Result has 269 places, 259 transitions, 577 flow [2023-11-26 11:54:17,315 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=565, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=577, PETRI_PLACES=269, PETRI_TRANSITIONS=259} [2023-11-26 11:54:17,316 INFO L281 CegarLoopForPetriNet]: 292 programPoint places, -23 predicate places. [2023-11-26 11:54:17,316 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 259 transitions, 577 flow [2023-11-26 11:54:17,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 295.5) internal successors, (1773), 6 states have internal predecessors, (1773), 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) [2023-11-26 11:54:17,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:17,317 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:17,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 11:54:17,317 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-26 11:54:17,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:17,318 INFO L85 PathProgramCache]: Analyzing trace with hash 703642796, now seen corresponding path program 1 times [2023-11-26 11:54:17,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:17,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370431037] [2023-11-26 11:54:17,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:17,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:17,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:17,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:17,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370431037] [2023-11-26 11:54:17,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370431037] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:17,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:17,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:54:17,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152671083] [2023-11-26 11:54:17,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:17,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:54:17,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:17,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:54:17,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:54:17,483 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 300 out of 324 [2023-11-26 11:54:17,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 259 transitions, 577 flow. Second operand has 4 states, 4 states have (on average 301.5) internal successors, (1206), 4 states have internal predecessors, (1206), 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) [2023-11-26 11:54:17,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:17,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 300 of 324 [2023-11-26 11:54:17,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:17,673 INFO L124 PetriNetUnfolderBase]: 42/768 cut-off events. [2023-11-26 11:54:17,673 INFO L125 PetriNetUnfolderBase]: For 30/31 co-relation queries the response was YES. [2023-11-26 11:54:17,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 903 conditions, 768 events. 42/768 cut-off events. For 30/31 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3355 event pairs, 6 based on Foata normal form. 0/704 useless extension candidates. Maximal degree in co-relation 861. Up to 46 conditions per place. [2023-11-26 11:54:17,680 INFO L140 encePairwiseOnDemand]: 318/324 looper letters, 13 selfloop transitions, 6 changer transitions 0/267 dead transitions. [2023-11-26 11:54:17,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 267 transitions, 634 flow [2023-11-26 11:54:17,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:54:17,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 11:54:17,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1520 transitions. [2023-11-26 11:54:17,687 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9382716049382716 [2023-11-26 11:54:17,687 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1520 transitions. [2023-11-26 11:54:17,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1520 transitions. [2023-11-26 11:54:17,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:17,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1520 transitions. [2023-11-26 11:54:17,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 304.0) internal successors, (1520), 5 states have internal predecessors, (1520), 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) [2023-11-26 11:54:17,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 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) [2023-11-26 11:54:17,699 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 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) [2023-11-26 11:54:17,700 INFO L175 Difference]: Start difference. First operand has 269 places, 259 transitions, 577 flow. Second operand 5 states and 1520 transitions. [2023-11-26 11:54:17,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 267 transitions, 634 flow [2023-11-26 11:54:17,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 267 transitions, 622 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:54:17,709 INFO L231 Difference]: Finished difference. Result has 271 places, 263 transitions, 603 flow [2023-11-26 11:54:17,710 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=565, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=603, PETRI_PLACES=271, PETRI_TRANSITIONS=263} [2023-11-26 11:54:17,711 INFO L281 CegarLoopForPetriNet]: 292 programPoint places, -21 predicate places. [2023-11-26 11:54:17,711 INFO L495 AbstractCegarLoop]: Abstraction has has 271 places, 263 transitions, 603 flow [2023-11-26 11:54:17,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 301.5) internal successors, (1206), 4 states have internal predecessors, (1206), 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) [2023-11-26 11:54:17,712 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:17,712 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:17,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 11:54:17,712 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-26 11:54:17,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:17,713 INFO L85 PathProgramCache]: Analyzing trace with hash 387226571, now seen corresponding path program 1 times [2023-11-26 11:54:17,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:17,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824158803] [2023-11-26 11:54:17,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:17,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:17,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:17,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:17,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:17,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824158803] [2023-11-26 11:54:17,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824158803] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:17,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:17,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:17,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648259935] [2023-11-26 11:54:17,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:17,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:54:17,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:17,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:54:17,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:54:17,803 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 324 [2023-11-26 11:54:17,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 263 transitions, 603 flow. Second operand has 3 states, 3 states have (on average 301.3333333333333) internal successors, (904), 3 states have internal predecessors, (904), 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) [2023-11-26 11:54:17,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:17,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 324 [2023-11-26 11:54:17,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:17,950 INFO L124 PetriNetUnfolderBase]: 28/606 cut-off events. [2023-11-26 11:54:17,951 INFO L125 PetriNetUnfolderBase]: For 20/21 co-relation queries the response was YES. [2023-11-26 11:54:17,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 742 conditions, 606 events. 28/606 cut-off events. For 20/21 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1698 event pairs, 10 based on Foata normal form. 0/568 useless extension candidates. Maximal degree in co-relation 697. Up to 29 conditions per place. [2023-11-26 11:54:17,959 INFO L140 encePairwiseOnDemand]: 321/324 looper letters, 9 selfloop transitions, 2 changer transitions 0/263 dead transitions. [2023-11-26 11:54:17,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 263 transitions, 626 flow [2023-11-26 11:54:17,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:54:17,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:54:17,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 909 transitions. [2023-11-26 11:54:17,963 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9351851851851852 [2023-11-26 11:54:17,963 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 909 transitions. [2023-11-26 11:54:17,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 909 transitions. [2023-11-26 11:54:17,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:17,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 909 transitions. [2023-11-26 11:54:17,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 303.0) internal successors, (909), 3 states have internal predecessors, (909), 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) [2023-11-26 11:54:17,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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) [2023-11-26 11:54:17,969 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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) [2023-11-26 11:54:17,970 INFO L175 Difference]: Start difference. First operand has 271 places, 263 transitions, 603 flow. Second operand 3 states and 909 transitions. [2023-11-26 11:54:17,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 263 transitions, 626 flow [2023-11-26 11:54:17,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 263 transitions, 626 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:54:17,979 INFO L231 Difference]: Finished difference. Result has 272 places, 262 transitions, 605 flow [2023-11-26 11:54:17,980 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=601, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=605, PETRI_PLACES=272, PETRI_TRANSITIONS=262} [2023-11-26 11:54:17,982 INFO L281 CegarLoopForPetriNet]: 292 programPoint places, -20 predicate places. [2023-11-26 11:54:17,982 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 262 transitions, 605 flow [2023-11-26 11:54:17,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 301.3333333333333) internal successors, (904), 3 states have internal predecessors, (904), 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) [2023-11-26 11:54:17,983 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:17,983 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:17,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 11:54:17,983 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-26 11:54:17,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:17,984 INFO L85 PathProgramCache]: Analyzing trace with hash -486820096, now seen corresponding path program 1 times [2023-11-26 11:54:17,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:17,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926383942] [2023-11-26 11:54:17,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:17,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:18,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:18,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:18,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926383942] [2023-11-26 11:54:18,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926383942] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:18,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:18,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:54:18,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979216486] [2023-11-26 11:54:18,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:18,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:54:18,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:18,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:54:18,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:54:18,895 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 324 [2023-11-26 11:54:18,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 262 transitions, 605 flow. Second operand has 6 states, 6 states have (on average 288.6666666666667) internal successors, (1732), 6 states have internal predecessors, (1732), 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) [2023-11-26 11:54:18,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:18,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 324 [2023-11-26 11:54:18,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:19,078 INFO L124 PetriNetUnfolderBase]: 54/670 cut-off events. [2023-11-26 11:54:19,078 INFO L125 PetriNetUnfolderBase]: For 55/56 co-relation queries the response was YES. [2023-11-26 11:54:19,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 898 conditions, 670 events. 54/670 cut-off events. For 55/56 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3113 event pairs, 6 based on Foata normal form. 0/635 useless extension candidates. Maximal degree in co-relation 850. Up to 42 conditions per place. [2023-11-26 11:54:19,087 INFO L140 encePairwiseOnDemand]: 312/324 looper letters, 16 selfloop transitions, 11 changer transitions 0/264 dead transitions. [2023-11-26 11:54:19,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 264 transitions, 667 flow [2023-11-26 11:54:19,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:54:19,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:54:19,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1750 transitions. [2023-11-26 11:54:19,094 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9002057613168725 [2023-11-26 11:54:19,094 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1750 transitions. [2023-11-26 11:54:19,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1750 transitions. [2023-11-26 11:54:19,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:19,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1750 transitions. [2023-11-26 11:54:19,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 291.6666666666667) internal successors, (1750), 6 states have internal predecessors, (1750), 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) [2023-11-26 11:54:19,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 324.0) internal successors, (2268), 7 states have internal predecessors, (2268), 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) [2023-11-26 11:54:19,106 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 324.0) internal successors, (2268), 7 states have internal predecessors, (2268), 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) [2023-11-26 11:54:19,106 INFO L175 Difference]: Start difference. First operand has 272 places, 262 transitions, 605 flow. Second operand 6 states and 1750 transitions. [2023-11-26 11:54:19,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 264 transitions, 667 flow [2023-11-26 11:54:19,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 264 transitions, 663 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:54:19,114 INFO L231 Difference]: Finished difference. Result has 273 places, 260 transitions, 619 flow [2023-11-26 11:54:19,115 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=597, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=619, PETRI_PLACES=273, PETRI_TRANSITIONS=260} [2023-11-26 11:54:19,115 INFO L281 CegarLoopForPetriNet]: 292 programPoint places, -19 predicate places. [2023-11-26 11:54:19,116 INFO L495 AbstractCegarLoop]: Abstraction has has 273 places, 260 transitions, 619 flow [2023-11-26 11:54:19,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 288.6666666666667) internal successors, (1732), 6 states have internal predecessors, (1732), 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) [2023-11-26 11:54:19,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:19,117 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:19,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 11:54:19,117 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-26 11:54:19,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:19,117 INFO L85 PathProgramCache]: Analyzing trace with hash 30869315, now seen corresponding path program 1 times [2023-11-26 11:54:19,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:19,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205351222] [2023-11-26 11:54:19,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:19,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:19,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:19,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:19,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205351222] [2023-11-26 11:54:19,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205351222] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:19,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:19,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:19,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969259773] [2023-11-26 11:54:19,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:19,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:54:19,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:19,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:54:19,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:54:19,223 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 324 [2023-11-26 11:54:19,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 260 transitions, 619 flow. Second operand has 3 states, 3 states have (on average 297.6666666666667) internal successors, (893), 3 states have internal predecessors, (893), 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) [2023-11-26 11:54:19,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:19,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 324 [2023-11-26 11:54:19,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:19,395 INFO L124 PetriNetUnfolderBase]: 50/759 cut-off events. [2023-11-26 11:54:19,395 INFO L125 PetriNetUnfolderBase]: For 67/68 co-relation queries the response was YES. [2023-11-26 11:54:19,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1040 conditions, 759 events. 50/759 cut-off events. For 67/68 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3367 event pairs, 26 based on Foata normal form. 0/721 useless extension candidates. Maximal degree in co-relation 994. Up to 85 conditions per place. [2023-11-26 11:54:19,404 INFO L140 encePairwiseOnDemand]: 321/324 looper letters, 13 selfloop transitions, 2 changer transitions 0/260 dead transitions. [2023-11-26 11:54:19,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 260 transitions, 650 flow [2023-11-26 11:54:19,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:54:19,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:54:19,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 901 transitions. [2023-11-26 11:54:19,408 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.926954732510288 [2023-11-26 11:54:19,409 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 901 transitions. [2023-11-26 11:54:19,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 901 transitions. [2023-11-26 11:54:19,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:19,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 901 transitions. [2023-11-26 11:54:19,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 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) [2023-11-26 11:54:19,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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) [2023-11-26 11:54:19,415 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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) [2023-11-26 11:54:19,416 INFO L175 Difference]: Start difference. First operand has 273 places, 260 transitions, 619 flow. Second operand 3 states and 901 transitions. [2023-11-26 11:54:19,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 260 transitions, 650 flow [2023-11-26 11:54:19,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 260 transitions, 628 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:54:19,424 INFO L231 Difference]: Finished difference. Result has 269 places, 259 transitions, 599 flow [2023-11-26 11:54:19,425 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=595, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=599, PETRI_PLACES=269, PETRI_TRANSITIONS=259} [2023-11-26 11:54:19,425 INFO L281 CegarLoopForPetriNet]: 292 programPoint places, -23 predicate places. [2023-11-26 11:54:19,425 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 259 transitions, 599 flow [2023-11-26 11:54:19,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.6666666666667) internal successors, (893), 3 states have internal predecessors, (893), 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) [2023-11-26 11:54:19,426 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:54:19,426 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:19,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-26 11:54:19,427 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2023-11-26 11:54:19,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:19,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1366308838, now seen corresponding path program 1 times [2023-11-26 11:54:19,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:19,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926524444] [2023-11-26 11:54:19,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:19,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:19,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:19,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:19,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926524444] [2023-11-26 11:54:19,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926524444] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:19,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:19,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:19,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573327238] [2023-11-26 11:54:19,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:19,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:54:19,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:19,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:54:19,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:54:19,555 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 324 [2023-11-26 11:54:19,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 259 transitions, 599 flow. Second operand has 3 states, 3 states have (on average 298.6666666666667) internal successors, (896), 3 states have internal predecessors, (896), 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) [2023-11-26 11:54:19,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:54:19,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 324 [2023-11-26 11:54:19,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:54:19,712 INFO L124 PetriNetUnfolderBase]: 50/754 cut-off events. [2023-11-26 11:54:19,712 INFO L125 PetriNetUnfolderBase]: For 57/58 co-relation queries the response was YES. [2023-11-26 11:54:19,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 970 conditions, 754 events. 50/754 cut-off events. For 57/58 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3366 event pairs, 26 based on Foata normal form. 0/721 useless extension candidates. Maximal degree in co-relation 924. Up to 85 conditions per place. [2023-11-26 11:54:19,719 INFO L140 encePairwiseOnDemand]: 321/324 looper letters, 0 selfloop transitions, 0 changer transitions 259/259 dead transitions. [2023-11-26 11:54:19,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 259 transitions, 630 flow [2023-11-26 11:54:19,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:54:19,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:54:19,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 901 transitions. [2023-11-26 11:54:19,722 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.926954732510288 [2023-11-26 11:54:19,723 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 901 transitions. [2023-11-26 11:54:19,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 901 transitions. [2023-11-26 11:54:19,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:54:19,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 901 transitions. [2023-11-26 11:54:19,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 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) [2023-11-26 11:54:19,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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) [2023-11-26 11:54:19,729 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 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) [2023-11-26 11:54:19,729 INFO L175 Difference]: Start difference. First operand has 269 places, 259 transitions, 599 flow. Second operand 3 states and 901 transitions. [2023-11-26 11:54:19,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 259 transitions, 630 flow [2023-11-26 11:54:19,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 259 transitions, 626 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:54:19,735 INFO L231 Difference]: Finished difference. Result has 268 places, 0 transitions, 0 flow [2023-11-26 11:54:19,735 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=593, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=268, PETRI_TRANSITIONS=0} [2023-11-26 11:54:19,736 INFO L281 CegarLoopForPetriNet]: 292 programPoint places, -24 predicate places. [2023-11-26 11:54:19,736 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 0 transitions, 0 flow [2023-11-26 11:54:19,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 298.6666666666667) internal successors, (896), 3 states have internal predecessors, (896), 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) [2023-11-26 11:54:19,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (58 of 59 remaining) [2023-11-26 11:54:19,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (57 of 59 remaining) [2023-11-26 11:54:19,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (56 of 59 remaining) [2023-11-26 11:54:19,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (55 of 59 remaining) [2023-11-26 11:54:19,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (54 of 59 remaining) [2023-11-26 11:54:19,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (53 of 59 remaining) [2023-11-26 11:54:19,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (52 of 59 remaining) [2023-11-26 11:54:19,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (51 of 59 remaining) [2023-11-26 11:54:19,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (50 of 59 remaining) [2023-11-26 11:54:19,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (49 of 59 remaining) [2023-11-26 11:54:19,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (48 of 59 remaining) [2023-11-26 11:54:19,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (47 of 59 remaining) [2023-11-26 11:54:19,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (46 of 59 remaining) [2023-11-26 11:54:19,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (45 of 59 remaining) [2023-11-26 11:54:19,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (44 of 59 remaining) [2023-11-26 11:54:19,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (43 of 59 remaining) [2023-11-26 11:54:19,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (42 of 59 remaining) [2023-11-26 11:54:19,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (41 of 59 remaining) [2023-11-26 11:54:19,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (40 of 59 remaining) [2023-11-26 11:54:19,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (39 of 59 remaining) [2023-11-26 11:54:19,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (38 of 59 remaining) [2023-11-26 11:54:19,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (37 of 59 remaining) [2023-11-26 11:54:19,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (36 of 59 remaining) [2023-11-26 11:54:19,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 59 remaining) [2023-11-26 11:54:19,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 59 remaining) [2023-11-26 11:54:19,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 59 remaining) [2023-11-26 11:54:19,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (32 of 59 remaining) [2023-11-26 11:54:19,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (31 of 59 remaining) [2023-11-26 11:54:19,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (30 of 59 remaining) [2023-11-26 11:54:19,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (29 of 59 remaining) [2023-11-26 11:54:19,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (28 of 59 remaining) [2023-11-26 11:54:19,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (27 of 59 remaining) [2023-11-26 11:54:19,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (26 of 59 remaining) [2023-11-26 11:54:19,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (25 of 59 remaining) [2023-11-26 11:54:19,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 59 remaining) [2023-11-26 11:54:19,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 59 remaining) [2023-11-26 11:54:19,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (22 of 59 remaining) [2023-11-26 11:54:19,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (21 of 59 remaining) [2023-11-26 11:54:19,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (20 of 59 remaining) [2023-11-26 11:54:19,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (19 of 59 remaining) [2023-11-26 11:54:19,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (18 of 59 remaining) [2023-11-26 11:54:19,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (17 of 59 remaining) [2023-11-26 11:54:19,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (16 of 59 remaining) [2023-11-26 11:54:19,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (15 of 59 remaining) [2023-11-26 11:54:19,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (14 of 59 remaining) [2023-11-26 11:54:19,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (13 of 59 remaining) [2023-11-26 11:54:19,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (12 of 59 remaining) [2023-11-26 11:54:19,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (11 of 59 remaining) [2023-11-26 11:54:19,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (10 of 59 remaining) [2023-11-26 11:54:19,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (9 of 59 remaining) [2023-11-26 11:54:19,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (8 of 59 remaining) [2023-11-26 11:54:19,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (7 of 59 remaining) [2023-11-26 11:54:19,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (6 of 59 remaining) [2023-11-26 11:54:19,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (5 of 59 remaining) [2023-11-26 11:54:19,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (4 of 59 remaining) [2023-11-26 11:54:19,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (3 of 59 remaining) [2023-11-26 11:54:19,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (2 of 59 remaining) [2023-11-26 11:54:19,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (1 of 59 remaining) [2023-11-26 11:54:19,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (0 of 59 remaining) [2023-11-26 11:54:19,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-26 11:54:19,751 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:19,759 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 11:54:19,759 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:54:19,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:54:19 BasicIcfg [2023-11-26 11:54:19,767 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:54:19,768 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:54:19,768 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:54:19,768 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:54:19,769 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:54:08" (3/4) ... [2023-11-26 11:54:19,771 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:54:19,776 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-26 11:54:19,776 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-26 11:54:19,785 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-11-26 11:54:19,785 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-26 11:54:19,786 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 11:54:19,786 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:54:19,919 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b1285d-6758-4e79-91b7-e48811717965/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:54:19,922 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b1285d-6758-4e79-91b7-e48811717965/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:54:19,922 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:54:19,923 INFO L158 Benchmark]: Toolchain (without parser) took 12676.50ms. Allocated memory was 134.2MB in the beginning and 348.1MB in the end (delta: 213.9MB). Free memory was 97.2MB in the beginning and 224.7MB in the end (delta: -127.5MB). Peak memory consumption was 89.1MB. Max. memory is 16.1GB. [2023-11-26 11:54:19,923 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 134.2MB. Free memory was 105.5MB in the beginning and 105.3MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:54:19,924 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.10ms. Allocated memory is still 134.2MB. Free memory was 96.8MB in the beginning and 84.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 11:54:19,924 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.61ms. Allocated memory is still 134.2MB. Free memory was 84.7MB in the beginning and 81.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:54:19,925 INFO L158 Benchmark]: Boogie Preprocessor took 44.01ms. Allocated memory is still 134.2MB. Free memory was 81.7MB in the beginning and 79.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:54:19,925 INFO L158 Benchmark]: RCFGBuilder took 828.20ms. Allocated memory is still 134.2MB. Free memory was 79.6MB in the beginning and 53.0MB in the end (delta: 26.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-26 11:54:19,925 INFO L158 Benchmark]: TraceAbstraction took 11230.41ms. Allocated memory was 134.2MB in the beginning and 348.1MB in the end (delta: 213.9MB). Free memory was 52.3MB in the beginning and 230.0MB in the end (delta: -177.6MB). Peak memory consumption was 189.8MB. Max. memory is 16.1GB. [2023-11-26 11:54:19,926 INFO L158 Benchmark]: Witness Printer took 154.37ms. Allocated memory is still 348.1MB. Free memory was 230.0MB in the beginning and 224.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 11:54:19,929 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 134.2MB. Free memory was 105.5MB in the beginning and 105.3MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.10ms. Allocated memory is still 134.2MB. Free memory was 96.8MB in the beginning and 84.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.61ms. Allocated memory is still 134.2MB. Free memory was 84.7MB in the beginning and 81.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.01ms. Allocated memory is still 134.2MB. Free memory was 81.7MB in the beginning and 79.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 828.20ms. Allocated memory is still 134.2MB. Free memory was 79.6MB in the beginning and 53.0MB in the end (delta: 26.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 11230.41ms. Allocated memory was 134.2MB in the beginning and 348.1MB in the end (delta: 213.9MB). Free memory was 52.3MB in the beginning and 230.0MB in the end (delta: -177.6MB). Peak memory consumption was 189.8MB. Max. memory is 16.1GB. * Witness Printer took 154.37ms. Allocated memory is still 348.1MB. Free memory was 230.0MB in the beginning and 224.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 457 locations, 59 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 11.0s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1113 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 519 mSDsluCounter, 156 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 360 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1701 IncrementalHoareTripleChecker+Invalid, 2061 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 360 mSolverCounterUnsat, 145 mSDtfsCounter, 1701 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=619occurred in iteration=16, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 1656 NumberOfCodeBlocks, 1656 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1638 ConstructedInterpolants, 0 QuantifiedInterpolants, 2513 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 34 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-26 11:54:19,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b1285d-6758-4e79-91b7-e48811717965/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE