./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-difference-det.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_bc92e42d-38ca-4534-8b99-32b9b1aa1909/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92e42d-38ca-4534-8b99-32b9b1aa1909/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92e42d-38ca-4534-8b99-32b9b1aa1909/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92e42d-38ca-4534-8b99-32b9b1aa1909/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-difference-det.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92e42d-38ca-4534-8b99-32b9b1aa1909/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92e42d-38ca-4534-8b99-32b9b1aa1909/bin/uautomizer-verify-BQ2R08f2Ya --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 38e3acb82ec05e672eff9207911c10948d6c695f982992ce82b68981a799bba7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:42:24,163 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:42:24,227 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92e42d-38ca-4534-8b99-32b9b1aa1909/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 00:42:24,232 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:42:24,232 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:42:24,258 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:42:24,258 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:42:24,259 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:42:24,260 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:42:24,260 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:42:24,261 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:42:24,262 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:42:24,262 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:42:24,263 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:42:24,263 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:42:24,264 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:42:24,264 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:42:24,265 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:42:24,265 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:42:24,266 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:42:24,266 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:42:24,267 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:42:24,267 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 00:42:24,268 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:42:24,268 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:42:24,269 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:42:24,269 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:42:24,270 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:42:24,270 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:42:24,271 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:42:24,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:42:24,272 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:42:24,272 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:42:24,272 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:42:24,273 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:42:24,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:42:24,274 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:42:24,274 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:42:24,274 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:42:24,275 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:42:24,275 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:42:24,275 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_bc92e42d-38ca-4534-8b99-32b9b1aa1909/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92e42d-38ca-4534-8b99-32b9b1aa1909/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38e3acb82ec05e672eff9207911c10948d6c695f982992ce82b68981a799bba7 [2023-11-29 00:42:24,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:42:24,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:42:24,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:42:24,518 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:42:24,518 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:42:24,519 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92e42d-38ca-4534-8b99-32b9b1aa1909/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/weaver/popl20-difference-det.wvr.c [2023-11-29 00:42:27,256 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:42:27,414 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:42:27,414 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92e42d-38ca-4534-8b99-32b9b1aa1909/sv-benchmarks/c/weaver/popl20-difference-det.wvr.c [2023-11-29 00:42:27,421 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92e42d-38ca-4534-8b99-32b9b1aa1909/bin/uautomizer-verify-BQ2R08f2Ya/data/e077db92f/7e95087ea47f4bdda8107fa749951827/FLAGbf30e5ee3 [2023-11-29 00:42:27,432 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92e42d-38ca-4534-8b99-32b9b1aa1909/bin/uautomizer-verify-BQ2R08f2Ya/data/e077db92f/7e95087ea47f4bdda8107fa749951827 [2023-11-29 00:42:27,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:42:27,435 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:42:27,437 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:42:27,437 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:42:27,441 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:42:27,441 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:42:27" (1/1) ... [2023-11-29 00:42:27,442 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bf21d1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:27, skipping insertion in model container [2023-11-29 00:42:27,442 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:42:27" (1/1) ... [2023-11-29 00:42:27,466 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:42:27,645 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:42:27,653 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:42:27,682 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:42:27,690 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:42:27,690 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:42:27,696 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:42:27,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:27 WrapperNode [2023-11-29 00:42:27,697 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:42:27,697 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:42:27,698 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:42:27,698 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:42:27,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:27" (1/1) ... [2023-11-29 00:42:27,713 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:27" (1/1) ... [2023-11-29 00:42:27,741 INFO L138 Inliner]: procedures = 23, calls = 42, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 179 [2023-11-29 00:42:27,742 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:42:27,742 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:42:27,742 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:42:27,743 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:42:27,750 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:27" (1/1) ... [2023-11-29 00:42:27,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:27" (1/1) ... [2023-11-29 00:42:27,755 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:27" (1/1) ... [2023-11-29 00:42:27,755 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:27" (1/1) ... [2023-11-29 00:42:27,766 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:27" (1/1) ... [2023-11-29 00:42:27,770 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:27" (1/1) ... [2023-11-29 00:42:27,773 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:27" (1/1) ... [2023-11-29 00:42:27,775 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:27" (1/1) ... [2023-11-29 00:42:27,778 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:42:27,779 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:42:27,779 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:42:27,780 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:42:27,780 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:27" (1/1) ... [2023-11-29 00:42:27,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:42:27,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92e42d-38ca-4534-8b99-32b9b1aa1909/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:42:27,807 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92e42d-38ca-4534-8b99-32b9b1aa1909/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:42:27,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92e42d-38ca-4534-8b99-32b9b1aa1909/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:42:27,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:42:27,839 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-29 00:42:27,839 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-29 00:42:27,839 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-29 00:42:27,839 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-29 00:42:27,839 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-29 00:42:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-29 00:42:27,840 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-29 00:42:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-29 00:42:27,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 00:42:27,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 00:42:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 00:42:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 00:42:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 00:42:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:42:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:42:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 00:42:27,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 00:42:27,843 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 00:42:27,942 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:42:27,944 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:42:28,256 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:42:28,338 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:42:28,338 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-29 00:42:28,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:42:28 BoogieIcfgContainer [2023-11-29 00:42:28,340 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:42:28,343 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:42:28,343 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:42:28,347 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:42:28,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:42:27" (1/3) ... [2023-11-29 00:42:28,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@743bb161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:42:28, skipping insertion in model container [2023-11-29 00:42:28,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:42:27" (2/3) ... [2023-11-29 00:42:28,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@743bb161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:42:28, skipping insertion in model container [2023-11-29 00:42:28,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:42:28" (3/3) ... [2023-11-29 00:42:28,350 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-difference-det.wvr.c [2023-11-29 00:42:28,359 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 00:42:28,368 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:42:28,369 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-29 00:42:28,369 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 00:42:28,442 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-29 00:42:28,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 202 places, 198 transitions, 424 flow [2023-11-29 00:42:28,553 INFO L124 PetriNetUnfolderBase]: 9/194 cut-off events. [2023-11-29 00:42:28,553 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-29 00:42:28,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 194 events. 9/194 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 228 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 114. Up to 2 conditions per place. [2023-11-29 00:42:28,561 INFO L82 GeneralOperation]: Start removeDead. Operand has 202 places, 198 transitions, 424 flow [2023-11-29 00:42:28,568 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 174 places, 169 transitions, 362 flow [2023-11-29 00:42:28,579 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:42:28,586 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;@6b4437ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:42:28,586 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-11-29 00:42:28,593 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 00:42:28,593 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2023-11-29 00:42:28,593 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 00:42:28,593 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:42:28,594 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] [2023-11-29 00:42:28,594 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:42:28,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:42:28,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1659840306, now seen corresponding path program 1 times [2023-11-29 00:42:28,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:42:28,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441625917] [2023-11-29 00:42:28,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:42:28,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:42:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:42:28,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:42:28,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:42:28,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441625917] [2023-11-29 00:42:28,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441625917] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:42:28,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:42:28,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:42:28,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794084371] [2023-11-29 00:42:28,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:42:28,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:42:28,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:42:28,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:42:28,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:42:28,872 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 198 [2023-11-29 00:42:28,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 169 transitions, 362 flow. Second operand has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 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) [2023-11-29 00:42:28,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:42:28,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 198 [2023-11-29 00:42:28,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:42:29,127 INFO L124 PetriNetUnfolderBase]: 170/806 cut-off events. [2023-11-29 00:42:29,127 INFO L125 PetriNetUnfolderBase]: For 96/101 co-relation queries the response was YES. [2023-11-29 00:42:29,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1138 conditions, 806 events. 170/806 cut-off events. For 96/101 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 4771 event pairs, 119 based on Foata normal form. 67/764 useless extension candidates. Maximal degree in co-relation 951. Up to 248 conditions per place. [2023-11-29 00:42:29,140 INFO L140 encePairwiseOnDemand]: 181/198 looper letters, 17 selfloop transitions, 2 changer transitions 0/154 dead transitions. [2023-11-29 00:42:29,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 154 transitions, 370 flow [2023-11-29 00:42:29,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:42:29,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:42:29,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 517 transitions. [2023-11-29 00:42:29,154 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8703703703703703 [2023-11-29 00:42:29,155 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 517 transitions. [2023-11-29 00:42:29,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 517 transitions. [2023-11-29 00:42:29,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:42:29,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 517 transitions. [2023-11-29 00:42:29,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 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) [2023-11-29 00:42:29,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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) [2023-11-29 00:42:29,171 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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) [2023-11-29 00:42:29,172 INFO L175 Difference]: Start difference. First operand has 174 places, 169 transitions, 362 flow. Second operand 3 states and 517 transitions. [2023-11-29 00:42:29,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 154 transitions, 370 flow [2023-11-29 00:42:29,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 154 transitions, 354 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-11-29 00:42:29,181 INFO L231 Difference]: Finished difference. Result has 157 places, 154 transitions, 320 flow [2023-11-29 00:42:29,183 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=320, PETRI_PLACES=157, PETRI_TRANSITIONS=154} [2023-11-29 00:42:29,186 INFO L281 CegarLoopForPetriNet]: 174 programPoint places, -17 predicate places. [2023-11-29 00:42:29,186 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 154 transitions, 320 flow [2023-11-29 00:42:29,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 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) [2023-11-29 00:42:29,187 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:42:29,187 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:42:29,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 00:42:29,188 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:42:29,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:42:29,189 INFO L85 PathProgramCache]: Analyzing trace with hash 533183264, now seen corresponding path program 1 times [2023-11-29 00:42:29,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:42:29,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647697645] [2023-11-29 00:42:29,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:42:29,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:42:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:42:29,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:42:29,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:42:29,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647697645] [2023-11-29 00:42:29,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647697645] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:42:29,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:42:29,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:42:29,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029029081] [2023-11-29 00:42:29,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:42:29,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:42:29,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:42:29,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:42:29,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:42:29,280 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 198 [2023-11-29 00:42:29,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 154 transitions, 320 flow. Second operand has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 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) [2023-11-29 00:42:29,281 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:42:29,281 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 198 [2023-11-29 00:42:29,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:42:29,453 INFO L124 PetriNetUnfolderBase]: 190/904 cut-off events. [2023-11-29 00:42:29,453 INFO L125 PetriNetUnfolderBase]: For 31/32 co-relation queries the response was YES. [2023-11-29 00:42:29,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1202 conditions, 904 events. 190/904 cut-off events. For 31/32 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 5660 event pairs, 119 based on Foata normal form. 0/779 useless extension candidates. Maximal degree in co-relation 1172. Up to 271 conditions per place. [2023-11-29 00:42:29,463 INFO L140 encePairwiseOnDemand]: 195/198 looper letters, 17 selfloop transitions, 2 changer transitions 0/153 dead transitions. [2023-11-29 00:42:29,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 153 transitions, 356 flow [2023-11-29 00:42:29,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:42:29,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:42:29,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 503 transitions. [2023-11-29 00:42:29,467 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8468013468013468 [2023-11-29 00:42:29,467 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 503 transitions. [2023-11-29 00:42:29,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 503 transitions. [2023-11-29 00:42:29,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:42:29,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 503 transitions. [2023-11-29 00:42:29,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 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) [2023-11-29 00:42:29,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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) [2023-11-29 00:42:29,473 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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) [2023-11-29 00:42:29,473 INFO L175 Difference]: Start difference. First operand has 157 places, 154 transitions, 320 flow. Second operand 3 states and 503 transitions. [2023-11-29 00:42:29,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 153 transitions, 356 flow [2023-11-29 00:42:29,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 153 transitions, 352 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 00:42:29,477 INFO L231 Difference]: Finished difference. Result has 156 places, 153 transitions, 318 flow [2023-11-29 00:42:29,478 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=318, PETRI_PLACES=156, PETRI_TRANSITIONS=153} [2023-11-29 00:42:29,479 INFO L281 CegarLoopForPetriNet]: 174 programPoint places, -18 predicate places. [2023-11-29 00:42:29,479 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 153 transitions, 318 flow [2023-11-29 00:42:29,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 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) [2023-11-29 00:42:29,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:42:29,480 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] [2023-11-29 00:42:29,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 00:42:29,480 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:42:29,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:42:29,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1493684085, now seen corresponding path program 1 times [2023-11-29 00:42:29,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:42:29,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526073365] [2023-11-29 00:42:29,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:42:29,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:42:29,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:42:29,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:42:29,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:42:29,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526073365] [2023-11-29 00:42:29,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526073365] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:42:29,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:42:29,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:42:29,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609883513] [2023-11-29 00:42:29,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:42:29,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:42:29,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:42:29,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:42:29,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:42:29,553 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 198 [2023-11-29 00:42:29,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 153 transitions, 318 flow. Second operand has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 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) [2023-11-29 00:42:29,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:42:29,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 198 [2023-11-29 00:42:29,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:42:29,731 INFO L124 PetriNetUnfolderBase]: 273/921 cut-off events. [2023-11-29 00:42:29,731 INFO L125 PetriNetUnfolderBase]: For 27/45 co-relation queries the response was YES. [2023-11-29 00:42:29,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1377 conditions, 921 events. 273/921 cut-off events. For 27/45 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5660 event pairs, 57 based on Foata normal form. 2/836 useless extension candidates. Maximal degree in co-relation 1339. Up to 393 conditions per place. [2023-11-29 00:42:29,743 INFO L140 encePairwiseOnDemand]: 194/198 looper letters, 22 selfloop transitions, 2 changer transitions 0/158 dead transitions. [2023-11-29 00:42:29,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 158 transitions, 379 flow [2023-11-29 00:42:29,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:42:29,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:42:29,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 515 transitions. [2023-11-29 00:42:29,746 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.867003367003367 [2023-11-29 00:42:29,746 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 515 transitions. [2023-11-29 00:42:29,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 515 transitions. [2023-11-29 00:42:29,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:42:29,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 515 transitions. [2023-11-29 00:42:29,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 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) [2023-11-29 00:42:29,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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) [2023-11-29 00:42:29,751 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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) [2023-11-29 00:42:29,751 INFO L175 Difference]: Start difference. First operand has 156 places, 153 transitions, 318 flow. Second operand 3 states and 515 transitions. [2023-11-29 00:42:29,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 158 transitions, 379 flow [2023-11-29 00:42:29,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 158 transitions, 375 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 00:42:29,756 INFO L231 Difference]: Finished difference. Result has 155 places, 153 transitions, 324 flow [2023-11-29 00:42:29,757 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=155, PETRI_TRANSITIONS=153} [2023-11-29 00:42:29,757 INFO L281 CegarLoopForPetriNet]: 174 programPoint places, -19 predicate places. [2023-11-29 00:42:29,758 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 153 transitions, 324 flow [2023-11-29 00:42:29,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 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) [2023-11-29 00:42:29,758 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:42:29,759 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] [2023-11-29 00:42:29,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 00:42:29,759 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:42:29,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:42:29,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1351601396, now seen corresponding path program 1 times [2023-11-29 00:42:29,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:42:29,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006354065] [2023-11-29 00:42:29,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:42:29,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:42:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:42:29,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:42:29,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:42:29,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006354065] [2023-11-29 00:42:29,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006354065] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:42:29,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:42:29,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:42:29,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052964181] [2023-11-29 00:42:29,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:42:29,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:42:29,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:42:29,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:42:29,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:42:29,834 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 198 [2023-11-29 00:42:29,835 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 153 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 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) [2023-11-29 00:42:29,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:42:29,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 198 [2023-11-29 00:42:29,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:42:30,103 INFO L124 PetriNetUnfolderBase]: 407/1414 cut-off events. [2023-11-29 00:42:30,103 INFO L125 PetriNetUnfolderBase]: For 49/61 co-relation queries the response was YES. [2023-11-29 00:42:30,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2043 conditions, 1414 events. 407/1414 cut-off events. For 49/61 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 10056 event pairs, 158 based on Foata normal form. 0/1244 useless extension candidates. Maximal degree in co-relation 1677. Up to 506 conditions per place. [2023-11-29 00:42:30,121 INFO L140 encePairwiseOnDemand]: 194/198 looper letters, 22 selfloop transitions, 2 changer transitions 0/158 dead transitions. [2023-11-29 00:42:30,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 158 transitions, 385 flow [2023-11-29 00:42:30,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:42:30,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:42:30,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 515 transitions. [2023-11-29 00:42:30,124 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.867003367003367 [2023-11-29 00:42:30,124 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 515 transitions. [2023-11-29 00:42:30,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 515 transitions. [2023-11-29 00:42:30,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:42:30,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 515 transitions. [2023-11-29 00:42:30,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 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) [2023-11-29 00:42:30,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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) [2023-11-29 00:42:30,130 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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) [2023-11-29 00:42:30,130 INFO L175 Difference]: Start difference. First operand has 155 places, 153 transitions, 324 flow. Second operand 3 states and 515 transitions. [2023-11-29 00:42:30,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 158 transitions, 385 flow [2023-11-29 00:42:30,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 158 transitions, 385 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 00:42:30,134 INFO L231 Difference]: Finished difference. Result has 156 places, 153 transitions, 334 flow [2023-11-29 00:42:30,135 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=156, PETRI_TRANSITIONS=153} [2023-11-29 00:42:30,135 INFO L281 CegarLoopForPetriNet]: 174 programPoint places, -18 predicate places. [2023-11-29 00:42:30,136 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 153 transitions, 334 flow [2023-11-29 00:42:30,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 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) [2023-11-29 00:42:30,136 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:42:30,137 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] [2023-11-29 00:42:30,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 00:42:30,137 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:42:30,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:42:30,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1225872600, now seen corresponding path program 1 times [2023-11-29 00:42:30,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:42:30,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316959107] [2023-11-29 00:42:30,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:42:30,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:42:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:42:30,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:42:30,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:42:30,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316959107] [2023-11-29 00:42:30,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316959107] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:42:30,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:42:30,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:42:30,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191206300] [2023-11-29 00:42:30,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:42:30,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:42:30,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:42:30,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:42:30,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:42:30,855 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 198 [2023-11-29 00:42:30,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 153 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 161.83333333333334) internal successors, (971), 6 states have internal predecessors, (971), 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) [2023-11-29 00:42:30,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:42:30,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 198 [2023-11-29 00:42:30,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:42:31,079 INFO L124 PetriNetUnfolderBase]: 543/1410 cut-off events. [2023-11-29 00:42:31,079 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-11-29 00:42:31,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2207 conditions, 1410 events. 543/1410 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 8553 event pairs, 46 based on Foata normal form. 0/1281 useless extension candidates. Maximal degree in co-relation 1752. Up to 266 conditions per place. [2023-11-29 00:42:31,096 INFO L140 encePairwiseOnDemand]: 193/198 looper letters, 31 selfloop transitions, 4 changer transitions 0/168 dead transitions. [2023-11-29 00:42:31,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 168 transitions, 434 flow [2023-11-29 00:42:31,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:42:31,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 00:42:31,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 996 transitions. [2023-11-29 00:42:31,100 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8383838383838383 [2023-11-29 00:42:31,100 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 996 transitions. [2023-11-29 00:42:31,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 996 transitions. [2023-11-29 00:42:31,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:42:31,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 996 transitions. [2023-11-29 00:42:31,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 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) [2023-11-29 00:42:31,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 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) [2023-11-29 00:42:31,107 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 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) [2023-11-29 00:42:31,107 INFO L175 Difference]: Start difference. First operand has 156 places, 153 transitions, 334 flow. Second operand 6 states and 996 transitions. [2023-11-29 00:42:31,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 168 transitions, 434 flow [2023-11-29 00:42:31,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 168 transitions, 434 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 00:42:31,110 INFO L231 Difference]: Finished difference. Result has 160 places, 152 transitions, 340 flow [2023-11-29 00:42:31,110 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=340, PETRI_PLACES=160, PETRI_TRANSITIONS=152} [2023-11-29 00:42:31,111 INFO L281 CegarLoopForPetriNet]: 174 programPoint places, -14 predicate places. [2023-11-29 00:42:31,111 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 152 transitions, 340 flow [2023-11-29 00:42:31,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 161.83333333333334) internal successors, (971), 6 states have internal predecessors, (971), 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) [2023-11-29 00:42:31,112 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:42:31,113 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] [2023-11-29 00:42:31,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 00:42:31,113 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:42:31,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:42:31,114 INFO L85 PathProgramCache]: Analyzing trace with hash 274300105, now seen corresponding path program 1 times [2023-11-29 00:42:31,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:42:31,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109106124] [2023-11-29 00:42:31,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:42:31,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:42:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:42:31,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:42:31,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:42:31,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109106124] [2023-11-29 00:42:31,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109106124] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:42:31,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:42:31,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:42:31,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438468920] [2023-11-29 00:42:31,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:42:31,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:42:31,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:42:31,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:42:31,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:42:31,776 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 198 [2023-11-29 00:42:31,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 152 transitions, 340 flow. Second operand has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 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) [2023-11-29 00:42:31,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:42:31,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 198 [2023-11-29 00:42:31,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:42:31,970 INFO L124 PetriNetUnfolderBase]: 267/933 cut-off events. [2023-11-29 00:42:31,970 INFO L125 PetriNetUnfolderBase]: For 16/18 co-relation queries the response was YES. [2023-11-29 00:42:31,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1389 conditions, 933 events. 267/933 cut-off events. For 16/18 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 5302 event pairs, 61 based on Foata normal form. 0/866 useless extension candidates. Maximal degree in co-relation 1200. Up to 141 conditions per place. [2023-11-29 00:42:31,982 INFO L140 encePairwiseOnDemand]: 193/198 looper letters, 27 selfloop transitions, 4 changer transitions 0/163 dead transitions. [2023-11-29 00:42:31,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 163 transitions, 424 flow [2023-11-29 00:42:31,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:42:31,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 00:42:31,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 992 transitions. [2023-11-29 00:42:31,987 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.835016835016835 [2023-11-29 00:42:31,987 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 992 transitions. [2023-11-29 00:42:31,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 992 transitions. [2023-11-29 00:42:31,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:42:31,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 992 transitions. [2023-11-29 00:42:31,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 165.33333333333334) internal successors, (992), 6 states have internal predecessors, (992), 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) [2023-11-29 00:42:31,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 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) [2023-11-29 00:42:31,995 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 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) [2023-11-29 00:42:31,995 INFO L175 Difference]: Start difference. First operand has 160 places, 152 transitions, 340 flow. Second operand 6 states and 992 transitions. [2023-11-29 00:42:31,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 163 transitions, 424 flow [2023-11-29 00:42:31,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 163 transitions, 417 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 00:42:31,999 INFO L231 Difference]: Finished difference. Result has 160 places, 151 transitions, 339 flow [2023-11-29 00:42:32,000 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=331, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=339, PETRI_PLACES=160, PETRI_TRANSITIONS=151} [2023-11-29 00:42:32,000 INFO L281 CegarLoopForPetriNet]: 174 programPoint places, -14 predicate places. [2023-11-29 00:42:32,001 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 151 transitions, 339 flow [2023-11-29 00:42:32,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 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) [2023-11-29 00:42:32,001 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:42:32,002 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] [2023-11-29 00:42:32,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 00:42:32,002 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:42:32,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:42:32,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1230890316, now seen corresponding path program 1 times [2023-11-29 00:42:32,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:42:32,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693659855] [2023-11-29 00:42:32,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:42:32,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:42:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:42:32,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:42:32,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:42:32,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693659855] [2023-11-29 00:42:32,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693659855] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:42:32,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:42:32,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:42:32,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925331149] [2023-11-29 00:42:32,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:42:32,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:42:32,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:42:32,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:42:32,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:42:32,581 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 198 [2023-11-29 00:42:32,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 151 transitions, 339 flow. Second operand has 6 states, 6 states have (on average 162.16666666666666) internal successors, (973), 6 states have internal predecessors, (973), 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) [2023-11-29 00:42:32,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:42:32,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 198 [2023-11-29 00:42:32,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:42:32,719 INFO L124 PetriNetUnfolderBase]: 177/823 cut-off events. [2023-11-29 00:42:32,719 INFO L125 PetriNetUnfolderBase]: For 17/26 co-relation queries the response was YES. [2023-11-29 00:42:32,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1158 conditions, 823 events. 177/823 cut-off events. For 17/26 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4630 event pairs, 65 based on Foata normal form. 4/770 useless extension candidates. Maximal degree in co-relation 969. Up to 153 conditions per place. [2023-11-29 00:42:32,726 INFO L140 encePairwiseOnDemand]: 193/198 looper letters, 23 selfloop transitions, 4 changer transitions 0/158 dead transitions. [2023-11-29 00:42:32,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 158 transitions, 407 flow [2023-11-29 00:42:32,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:42:32,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 00:42:32,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 988 transitions. [2023-11-29 00:42:32,729 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8316498316498316 [2023-11-29 00:42:32,729 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 988 transitions. [2023-11-29 00:42:32,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 988 transitions. [2023-11-29 00:42:32,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:42:32,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 988 transitions. [2023-11-29 00:42:32,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 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) [2023-11-29 00:42:32,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 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) [2023-11-29 00:42:32,735 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 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) [2023-11-29 00:42:32,735 INFO L175 Difference]: Start difference. First operand has 160 places, 151 transitions, 339 flow. Second operand 6 states and 988 transitions. [2023-11-29 00:42:32,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 158 transitions, 407 flow [2023-11-29 00:42:32,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 158 transitions, 400 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 00:42:32,739 INFO L231 Difference]: Finished difference. Result has 160 places, 150 transitions, 338 flow [2023-11-29 00:42:32,739 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=338, PETRI_PLACES=160, PETRI_TRANSITIONS=150} [2023-11-29 00:42:32,740 INFO L281 CegarLoopForPetriNet]: 174 programPoint places, -14 predicate places. [2023-11-29 00:42:32,740 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 150 transitions, 338 flow [2023-11-29 00:42:32,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 162.16666666666666) internal successors, (973), 6 states have internal predecessors, (973), 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) [2023-11-29 00:42:32,741 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:42:32,741 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] [2023-11-29 00:42:32,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 00:42:32,742 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:42:32,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:42:32,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1546943600, now seen corresponding path program 1 times [2023-11-29 00:42:32,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:42:32,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194883984] [2023-11-29 00:42:32,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:42:32,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:42:32,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:42:33,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:42:33,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:42:33,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194883984] [2023-11-29 00:42:33,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194883984] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:42:33,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:42:33,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:42:33,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494191880] [2023-11-29 00:42:33,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:42:33,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:42:33,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:42:33,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:42:33,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:42:33,442 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 198 [2023-11-29 00:42:33,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 150 transitions, 338 flow. Second operand has 6 states, 6 states have (on average 162.33333333333334) internal successors, (974), 6 states have internal predecessors, (974), 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) [2023-11-29 00:42:33,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:42:33,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 198 [2023-11-29 00:42:33,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:42:33,597 INFO L124 PetriNetUnfolderBase]: 147/784 cut-off events. [2023-11-29 00:42:33,597 INFO L125 PetriNetUnfolderBase]: For 19/28 co-relation queries the response was YES. [2023-11-29 00:42:33,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1078 conditions, 784 events. 147/784 cut-off events. For 19/28 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4433 event pairs, 66 based on Foata normal form. 4/730 useless extension candidates. Maximal degree in co-relation 989. Up to 159 conditions per place. [2023-11-29 00:42:33,606 INFO L140 encePairwiseOnDemand]: 193/198 looper letters, 19 selfloop transitions, 4 changer transitions 0/153 dead transitions. [2023-11-29 00:42:33,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 153 transitions, 390 flow [2023-11-29 00:42:33,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:42:33,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 00:42:33,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 984 transitions. [2023-11-29 00:42:33,610 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8282828282828283 [2023-11-29 00:42:33,610 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 984 transitions. [2023-11-29 00:42:33,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 984 transitions. [2023-11-29 00:42:33,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:42:33,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 984 transitions. [2023-11-29 00:42:33,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 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) [2023-11-29 00:42:33,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 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) [2023-11-29 00:42:33,617 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 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) [2023-11-29 00:42:33,618 INFO L175 Difference]: Start difference. First operand has 160 places, 150 transitions, 338 flow. Second operand 6 states and 984 transitions. [2023-11-29 00:42:33,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 153 transitions, 390 flow [2023-11-29 00:42:33,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 153 transitions, 383 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 00:42:33,622 INFO L231 Difference]: Finished difference. Result has 160 places, 149 transitions, 337 flow [2023-11-29 00:42:33,622 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=337, PETRI_PLACES=160, PETRI_TRANSITIONS=149} [2023-11-29 00:42:33,623 INFO L281 CegarLoopForPetriNet]: 174 programPoint places, -14 predicate places. [2023-11-29 00:42:33,623 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 149 transitions, 337 flow [2023-11-29 00:42:33,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 162.33333333333334) internal successors, (974), 6 states have internal predecessors, (974), 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) [2023-11-29 00:42:33,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:42:33,624 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] [2023-11-29 00:42:33,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 00:42:33,624 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:42:33,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:42:33,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1256536974, now seen corresponding path program 1 times [2023-11-29 00:42:33,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:42:33,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004871743] [2023-11-29 00:42:33,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:42:33,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:42:33,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:42:33,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:42:33,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:42:33,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004871743] [2023-11-29 00:42:33,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004871743] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:42:33,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:42:33,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:42:33,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032506365] [2023-11-29 00:42:33,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:42:33,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:42:33,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:42:33,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:42:33,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:42:33,693 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 198 [2023-11-29 00:42:33,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 149 transitions, 337 flow. Second operand has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 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) [2023-11-29 00:42:33,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:42:33,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 198 [2023-11-29 00:42:33,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:42:33,828 INFO L124 PetriNetUnfolderBase]: 137/768 cut-off events. [2023-11-29 00:42:33,828 INFO L125 PetriNetUnfolderBase]: For 20/25 co-relation queries the response was YES. [2023-11-29 00:42:33,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1043 conditions, 768 events. 137/768 cut-off events. For 20/25 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4352 event pairs, 66 based on Foata normal form. 0/711 useless extension candidates. Maximal degree in co-relation 1018. Up to 159 conditions per place. [2023-11-29 00:42:33,835 INFO L140 encePairwiseOnDemand]: 196/198 looper letters, 13 selfloop transitions, 1 changer transitions 0/148 dead transitions. [2023-11-29 00:42:33,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 148 transitions, 363 flow [2023-11-29 00:42:33,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:42:33,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:42:33,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 516 transitions. [2023-11-29 00:42:33,838 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8686868686868687 [2023-11-29 00:42:33,838 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 516 transitions. [2023-11-29 00:42:33,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 516 transitions. [2023-11-29 00:42:33,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:42:33,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 516 transitions. [2023-11-29 00:42:33,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 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) [2023-11-29 00:42:33,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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) [2023-11-29 00:42:33,842 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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) [2023-11-29 00:42:33,842 INFO L175 Difference]: Start difference. First operand has 160 places, 149 transitions, 337 flow. Second operand 3 states and 516 transitions. [2023-11-29 00:42:33,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 148 transitions, 363 flow [2023-11-29 00:42:33,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 148 transitions, 356 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 00:42:33,846 INFO L231 Difference]: Finished difference. Result has 157 places, 148 transitions, 330 flow [2023-11-29 00:42:33,847 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=157, PETRI_TRANSITIONS=148} [2023-11-29 00:42:33,848 INFO L281 CegarLoopForPetriNet]: 174 programPoint places, -17 predicate places. [2023-11-29 00:42:33,848 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 148 transitions, 330 flow [2023-11-29 00:42:33,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 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) [2023-11-29 00:42:33,848 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:42:33,848 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] [2023-11-29 00:42:33,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 00:42:33,849 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-29 00:42:33,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:42:33,849 INFO L85 PathProgramCache]: Analyzing trace with hash 92865464, now seen corresponding path program 1 times [2023-11-29 00:42:33,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:42:33,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580226475] [2023-11-29 00:42:33,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:42:33,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:42:33,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:42:33,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:42:33,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:42:33,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580226475] [2023-11-29 00:42:33,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580226475] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:42:33,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:42:33,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:42:33,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720793372] [2023-11-29 00:42:33,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:42:33,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:42:33,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:42:33,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:42:33,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:42:33,921 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 198 [2023-11-29 00:42:33,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 148 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 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) [2023-11-29 00:42:33,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:42:33,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 198 [2023-11-29 00:42:33,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:42:34,039 INFO L124 PetriNetUnfolderBase]: 137/767 cut-off events. [2023-11-29 00:42:34,039 INFO L125 PetriNetUnfolderBase]: For 20/25 co-relation queries the response was YES. [2023-11-29 00:42:34,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1039 conditions, 767 events. 137/767 cut-off events. For 20/25 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4352 event pairs, 66 based on Foata normal form. 1/711 useless extension candidates. Maximal degree in co-relation 1029. Up to 159 conditions per place. [2023-11-29 00:42:34,044 INFO L140 encePairwiseOnDemand]: 196/198 looper letters, 0 selfloop transitions, 0 changer transitions 147/147 dead transitions. [2023-11-29 00:42:34,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 147 transitions, 354 flow [2023-11-29 00:42:34,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:42:34,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 00:42:34,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 515 transitions. [2023-11-29 00:42:34,047 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.867003367003367 [2023-11-29 00:42:34,047 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 515 transitions. [2023-11-29 00:42:34,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 515 transitions. [2023-11-29 00:42:34,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:42:34,048 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 515 transitions. [2023-11-29 00:42:34,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 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) [2023-11-29 00:42:34,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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) [2023-11-29 00:42:34,051 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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) [2023-11-29 00:42:34,051 INFO L175 Difference]: Start difference. First operand has 157 places, 148 transitions, 330 flow. Second operand 3 states and 515 transitions. [2023-11-29 00:42:34,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 147 transitions, 354 flow [2023-11-29 00:42:34,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 147 transitions, 353 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 00:42:34,054 INFO L231 Difference]: Finished difference. Result has 157 places, 0 transitions, 0 flow [2023-11-29 00:42:34,054 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=157, PETRI_TRANSITIONS=0} [2023-11-29 00:42:34,055 INFO L281 CegarLoopForPetriNet]: 174 programPoint places, -17 predicate places. [2023-11-29 00:42:34,055 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 0 transitions, 0 flow [2023-11-29 00:42:34,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 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) [2023-11-29 00:42:34,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (39 of 40 remaining) [2023-11-29 00:42:34,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2023-11-29 00:42:34,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2023-11-29 00:42:34,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2023-11-29 00:42:34,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2023-11-29 00:42:34,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2023-11-29 00:42:34,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (33 of 40 remaining) [2023-11-29 00:42:34,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2023-11-29 00:42:34,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2023-11-29 00:42:34,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2023-11-29 00:42:34,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2023-11-29 00:42:34,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2023-11-29 00:42:34,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2023-11-29 00:42:34,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2023-11-29 00:42:34,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2023-11-29 00:42:34,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2023-11-29 00:42:34,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2023-11-29 00:42:34,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2023-11-29 00:42:34,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 40 remaining) [2023-11-29 00:42:34,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 40 remaining) [2023-11-29 00:42:34,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 40 remaining) [2023-11-29 00:42:34,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 40 remaining) [2023-11-29 00:42:34,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2023-11-29 00:42:34,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2023-11-29 00:42:34,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2023-11-29 00:42:34,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2023-11-29 00:42:34,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2023-11-29 00:42:34,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining) [2023-11-29 00:42:34,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2023-11-29 00:42:34,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2023-11-29 00:42:34,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2023-11-29 00:42:34,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2023-11-29 00:42:34,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2023-11-29 00:42:34,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2023-11-29 00:42:34,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2023-11-29 00:42:34,064 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2023-11-29 00:42:34,064 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2023-11-29 00:42:34,064 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2023-11-29 00:42:34,064 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2023-11-29 00:42:34,064 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2023-11-29 00:42:34,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 00:42:34,065 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:42:34,070 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 00:42:34,070 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 00:42:34,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 12:42:34 BasicIcfg [2023-11-29 00:42:34,075 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 00:42:34,076 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 00:42:34,076 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 00:42:34,076 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 00:42:34,076 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:42:28" (3/4) ... [2023-11-29 00:42:34,078 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 00:42:34,081 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-29 00:42:34,081 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-29 00:42:34,081 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-11-29 00:42:34,081 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2023-11-29 00:42:34,086 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-29 00:42:34,086 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-29 00:42:34,087 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 00:42:34,087 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 00:42:34,172 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92e42d-38ca-4534-8b99-32b9b1aa1909/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 00:42:34,173 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92e42d-38ca-4534-8b99-32b9b1aa1909/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 00:42:34,173 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 00:42:34,173 INFO L158 Benchmark]: Toolchain (without parser) took 6738.07ms. Allocated memory was 163.6MB in the beginning and 209.7MB in the end (delta: 46.1MB). Free memory was 122.1MB in the beginning and 80.2MB in the end (delta: 41.9MB). Peak memory consumption was 87.7MB. Max. memory is 16.1GB. [2023-11-29 00:42:34,174 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 115.3MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:42:34,174 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.39ms. Allocated memory is still 163.6MB. Free memory was 121.4MB in the beginning and 126.7MB in the end (delta: -5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 00:42:34,174 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.24ms. Allocated memory is still 163.6MB. Free memory was 126.7MB in the beginning and 124.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 00:42:34,175 INFO L158 Benchmark]: Boogie Preprocessor took 36.23ms. Allocated memory is still 163.6MB. Free memory was 124.8MB in the beginning and 122.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 00:42:34,175 INFO L158 Benchmark]: RCFGBuilder took 560.94ms. Allocated memory is still 163.6MB. Free memory was 122.7MB in the beginning and 93.3MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-29 00:42:34,176 INFO L158 Benchmark]: TraceAbstraction took 5732.12ms. Allocated memory was 163.6MB in the beginning and 209.7MB in the end (delta: 46.1MB). Free memory was 92.6MB in the beginning and 85.5MB in the end (delta: 7.2MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. [2023-11-29 00:42:34,176 INFO L158 Benchmark]: Witness Printer took 96.93ms. Allocated memory is still 209.7MB. Free memory was 85.5MB in the beginning and 80.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 00:42:34,178 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 115.3MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.39ms. Allocated memory is still 163.6MB. Free memory was 121.4MB in the beginning and 126.7MB in the end (delta: -5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.24ms. Allocated memory is still 163.6MB. Free memory was 126.7MB in the beginning and 124.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.23ms. Allocated memory is still 163.6MB. Free memory was 124.8MB in the beginning and 122.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 560.94ms. Allocated memory is still 163.6MB. Free memory was 122.7MB in the beginning and 93.3MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 5732.12ms. Allocated memory was 163.6MB in the beginning and 209.7MB in the end (delta: 46.1MB). Free memory was 92.6MB in the beginning and 85.5MB in the end (delta: 7.2MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. * Witness Printer took 96.93ms. Allocated memory is still 209.7MB. Free memory was 85.5MB in the beginning and 80.2MB 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: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: 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: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: 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: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: 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: 75]: 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 9 procedures, 260 locations, 40 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: 5.6s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 452 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 260 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 230 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1031 IncrementalHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 230 mSolverCounterUnsat, 16 mSDtfsCounter, 1031 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, InterpolantAutomatonStates: 42, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 728 NumberOfCodeBlocks, 728 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 718 ConstructedInterpolants, 0 QuantifiedInterpolants, 1054 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 22 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 00:42:34,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc92e42d-38ca-4534-8b99-32b9b1aa1909/bin/uautomizer-verify-BQ2R08f2Ya/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