./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-exp-term-subst.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_5dce4ded-ef37-42d8-a4c9-920f0d4e90fb/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4ded-ef37-42d8-a4c9-920f0d4e90fb/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_5dce4ded-ef37-42d8-a4c9-920f0d4e90fb/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4ded-ef37-42d8-a4c9-920f0d4e90fb/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4ded-ef37-42d8-a4c9-920f0d4e90fb/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_5dce4ded-ef37-42d8-a4c9-920f0d4e90fb/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 2a508120cc7913f10b79dda7ca65a8b88f829725798d520aee5d1c1d04a1fc13 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:42:53,097 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:42:53,160 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4ded-ef37-42d8-a4c9-920f0d4e90fb/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-28 23:42:53,165 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:42:53,165 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:42:53,204 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:42:53,205 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:42:53,205 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:42:53,206 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 23:42:53,206 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 23:42:53,207 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:42:53,208 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:42:53,208 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:42:53,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:42:53,209 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 23:42:53,210 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 23:42:53,210 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 23:42:53,211 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 23:42:53,211 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:42:53,212 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 23:42:53,212 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 23:42:53,213 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 23:42:53,213 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-28 23:42:53,214 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 23:42:53,214 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 23:42:53,214 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 23:42:53,221 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:42:53,222 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:42:53,222 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:42:53,223 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 23:42:53,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:42:53,224 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:42:53,224 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 23:42:53,225 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 23:42:53,225 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 23:42:53,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 23:42:53,226 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 23:42:53,226 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 23:42:53,226 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 23:42:53,226 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 23:42:53,226 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 23:42:53,227 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_5dce4ded-ef37-42d8-a4c9-920f0d4e90fb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4ded-ef37-42d8-a4c9-920f0d4e90fb/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a508120cc7913f10b79dda7ca65a8b88f829725798d520aee5d1c1d04a1fc13 [2023-11-28 23:42:53,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:42:53,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:42:53,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:42:53,466 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:42:53,466 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:42:53,467 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4ded-ef37-42d8-a4c9-920f0d4e90fb/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c [2023-11-28 23:42:56,160 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:42:56,339 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:42:56,339 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4ded-ef37-42d8-a4c9-920f0d4e90fb/sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c [2023-11-28 23:42:56,346 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4ded-ef37-42d8-a4c9-920f0d4e90fb/bin/uautomizer-verify-BQ2R08f2Ya/data/747f24427/34314785fbea49a1a21c91250bbc5b34/FLAG486730a0d [2023-11-28 23:42:56,358 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4ded-ef37-42d8-a4c9-920f0d4e90fb/bin/uautomizer-verify-BQ2R08f2Ya/data/747f24427/34314785fbea49a1a21c91250bbc5b34 [2023-11-28 23:42:56,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:42:56,362 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:42:56,364 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:42:56,364 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:42:56,369 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:42:56,370 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:42:56" (1/1) ... [2023-11-28 23:42:56,371 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12bd414a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:56, skipping insertion in model container [2023-11-28 23:42:56,371 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:42:56" (1/1) ... [2023-11-28 23:42:56,400 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:42:56,580 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:42:56,592 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 23:42:56,629 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:42:56,646 INFO L206 MainTranslator]: Completed translation [2023-11-28 23:42:56,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:56 WrapperNode [2023-11-28 23:42:56,647 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:42:56,648 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 23:42:56,648 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 23:42:56,649 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 23:42:56,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:56" (1/1) ... [2023-11-28 23:42:56,667 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:56" (1/1) ... [2023-11-28 23:42:56,706 INFO L138 Inliner]: procedures = 23, calls = 32, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 347 [2023-11-28 23:42:56,706 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 23:42:56,707 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 23:42:56,708 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 23:42:56,708 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 23:42:56,719 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:56" (1/1) ... [2023-11-28 23:42:56,719 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:56" (1/1) ... [2023-11-28 23:42:56,725 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:56" (1/1) ... [2023-11-28 23:42:56,726 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:56" (1/1) ... [2023-11-28 23:42:56,740 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:56" (1/1) ... [2023-11-28 23:42:56,744 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:56" (1/1) ... [2023-11-28 23:42:56,747 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:56" (1/1) ... [2023-11-28 23:42:56,750 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:56" (1/1) ... [2023-11-28 23:42:56,755 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 23:42:56,756 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 23:42:56,756 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 23:42:56,756 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 23:42:56,757 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:56" (1/1) ... [2023-11-28 23:42:56,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:42:56,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4ded-ef37-42d8-a4c9-920f0d4e90fb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:42:56,788 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4ded-ef37-42d8-a4c9-920f0d4e90fb/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 23:42:56,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4ded-ef37-42d8-a4c9-920f0d4e90fb/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 23:42:56,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 23:42:56,821 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-28 23:42:56,821 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-28 23:42:56,821 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-28 23:42:56,821 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-28 23:42:56,821 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-28 23:42:56,822 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-28 23:42:56,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-28 23:42:56,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 23:42:56,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-28 23:42:56,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 23:42:56,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 23:42:56,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-28 23:42:56,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 23:42:56,824 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-28 23:42:56,962 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 23:42:56,964 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 23:42:57,483 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 23:42:57,502 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 23:42:57,502 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-28 23:42:57,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:42:57 BoogieIcfgContainer [2023-11-28 23:42:57,504 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 23:42:57,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 23:42:57,506 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 23:42:57,509 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 23:42:57,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:42:56" (1/3) ... [2023-11-28 23:42:57,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f9569a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:42:57, skipping insertion in model container [2023-11-28 23:42:57,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:56" (2/3) ... [2023-11-28 23:42:57,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f9569a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:42:57, skipping insertion in model container [2023-11-28 23:42:57,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:42:57" (3/3) ... [2023-11-28 23:42:57,512 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-subst.wvr.c [2023-11-28 23:42:57,520 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-28 23:42:57,528 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 23:42:57,529 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 47 error locations. [2023-11-28 23:42:57,529 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-28 23:42:57,662 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-28 23:42:57,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 440 places, 457 transitions, 935 flow [2023-11-28 23:42:57,900 INFO L124 PetriNetUnfolderBase]: 27/454 cut-off events. [2023-11-28 23:42:57,900 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-28 23:42:57,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 467 conditions, 454 events. 27/454 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1469 event pairs, 0 based on Foata normal form. 0/380 useless extension candidates. Maximal degree in co-relation 317. Up to 2 conditions per place. [2023-11-28 23:42:57,913 INFO L82 GeneralOperation]: Start removeDead. Operand has 440 places, 457 transitions, 935 flow [2023-11-28 23:42:57,940 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 413 places, 428 transitions, 874 flow [2023-11-28 23:42:57,954 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 23:42:57,960 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;@20810163, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 23:42:57,960 INFO L358 AbstractCegarLoop]: Starting to check reachability of 83 error locations. [2023-11-28 23:42:57,963 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-28 23:42:57,964 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2023-11-28 23:42:57,964 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-28 23:42:57,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:42:57,964 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] [2023-11-28 23:42:57,965 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-28 23:42:57,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:42:57,969 INFO L85 PathProgramCache]: Analyzing trace with hash -209063472, now seen corresponding path program 1 times [2023-11-28 23:42:57,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:42:57,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182633414] [2023-11-28 23:42:57,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:42:57,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:42:58,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:42:58,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:42:58,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:42:58,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182633414] [2023-11-28 23:42:58,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182633414] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:42:58,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:42:58,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:42:58,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946613082] [2023-11-28 23:42:58,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:42:58,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:42:58,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:42:58,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:42:58,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:42:58,239 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 457 [2023-11-28 23:42:58,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 428 transitions, 874 flow. Second operand has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 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) [2023-11-28 23:42:58,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:42:58,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 457 [2023-11-28 23:42:58,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:42:58,590 INFO L124 PetriNetUnfolderBase]: 98/1490 cut-off events. [2023-11-28 23:42:58,590 INFO L125 PetriNetUnfolderBase]: For 28/32 co-relation queries the response was YES. [2023-11-28 23:42:58,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1577 conditions, 1490 events. 98/1490 cut-off events. For 28/32 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 10698 event pairs, 20 based on Foata normal form. 42/1252 useless extension candidates. Maximal degree in co-relation 1415. Up to 50 conditions per place. [2023-11-28 23:42:58,618 INFO L140 encePairwiseOnDemand]: 447/457 looper letters, 13 selfloop transitions, 2 changer transitions 1/420 dead transitions. [2023-11-28 23:42:58,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 420 transitions, 888 flow [2023-11-28 23:42:58,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:42:58,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:42:58,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1316 transitions. [2023-11-28 23:42:58,637 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9598832968636032 [2023-11-28 23:42:58,637 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1316 transitions. [2023-11-28 23:42:58,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1316 transitions. [2023-11-28 23:42:58,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:42:58,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1316 transitions. [2023-11-28 23:42:58,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 438.6666666666667) internal successors, (1316), 3 states have internal predecessors, (1316), 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) [2023-11-28 23:42:58,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:42:58,660 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:42:58,661 INFO L175 Difference]: Start difference. First operand has 413 places, 428 transitions, 874 flow. Second operand 3 states and 1316 transitions. [2023-11-28 23:42:58,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 420 transitions, 888 flow [2023-11-28 23:42:58,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 420 transitions, 876 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-28 23:42:58,677 INFO L231 Difference]: Finished difference. Result has 408 places, 419 transitions, 848 flow [2023-11-28 23:42:58,679 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=848, PETRI_PLACES=408, PETRI_TRANSITIONS=419} [2023-11-28 23:42:58,682 INFO L281 CegarLoopForPetriNet]: 413 programPoint places, -5 predicate places. [2023-11-28 23:42:58,682 INFO L495 AbstractCegarLoop]: Abstraction has has 408 places, 419 transitions, 848 flow [2023-11-28 23:42:58,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 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) [2023-11-28 23:42:58,684 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:42:58,684 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] [2023-11-28 23:42:58,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 23:42:58,684 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-28 23:42:58,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:42:58,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1078286050, now seen corresponding path program 1 times [2023-11-28 23:42:58,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:42:58,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612645690] [2023-11-28 23:42:58,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:42:58,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:42:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:42:58,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:42:58,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:42:58,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612645690] [2023-11-28 23:42:58,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612645690] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:42:58,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:42:58,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:42:58,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457803153] [2023-11-28 23:42:58,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:42:58,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:42:58,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:42:58,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:42:58,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:42:58,791 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 457 [2023-11-28 23:42:58,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 419 transitions, 848 flow. Second operand has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 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) [2023-11-28 23:42:58,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:42:58,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 457 [2023-11-28 23:42:58,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:42:58,983 INFO L124 PetriNetUnfolderBase]: 54/874 cut-off events. [2023-11-28 23:42:58,983 INFO L125 PetriNetUnfolderBase]: For 7/9 co-relation queries the response was YES. [2023-11-28 23:42:58,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 925 conditions, 874 events. 54/874 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4992 event pairs, 12 based on Foata normal form. 0/720 useless extension candidates. Maximal degree in co-relation 891. Up to 38 conditions per place. [2023-11-28 23:42:59,002 INFO L140 encePairwiseOnDemand]: 454/457 looper letters, 13 selfloop transitions, 2 changer transitions 0/418 dead transitions. [2023-11-28 23:42:59,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 418 transitions, 876 flow [2023-11-28 23:42:59,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:42:59,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:42:59,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1309 transitions. [2023-11-28 23:42:59,007 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9547775346462436 [2023-11-28 23:42:59,008 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1309 transitions. [2023-11-28 23:42:59,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1309 transitions. [2023-11-28 23:42:59,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:42:59,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1309 transitions. [2023-11-28 23:42:59,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 436.3333333333333) internal successors, (1309), 3 states have internal predecessors, (1309), 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) [2023-11-28 23:42:59,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:42:59,017 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:42:59,017 INFO L175 Difference]: Start difference. First operand has 408 places, 419 transitions, 848 flow. Second operand 3 states and 1309 transitions. [2023-11-28 23:42:59,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 418 transitions, 876 flow [2023-11-28 23:42:59,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 418 transitions, 872 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 23:42:59,025 INFO L231 Difference]: Finished difference. Result has 406 places, 418 transitions, 846 flow [2023-11-28 23:42:59,025 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=842, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=846, PETRI_PLACES=406, PETRI_TRANSITIONS=418} [2023-11-28 23:42:59,026 INFO L281 CegarLoopForPetriNet]: 413 programPoint places, -7 predicate places. [2023-11-28 23:42:59,026 INFO L495 AbstractCegarLoop]: Abstraction has has 406 places, 418 transitions, 846 flow [2023-11-28 23:42:59,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 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) [2023-11-28 23:42:59,027 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:42:59,028 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] [2023-11-28 23:42:59,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-28 23:42:59,028 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-28 23:42:59,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:42:59,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1050303204, now seen corresponding path program 1 times [2023-11-28 23:42:59,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:42:59,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178047791] [2023-11-28 23:42:59,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:42:59,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:42:59,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:42:59,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:42:59,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:42:59,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178047791] [2023-11-28 23:42:59,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178047791] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:42:59,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:42:59,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:42:59,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065769810] [2023-11-28 23:42:59,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:42:59,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:42:59,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:42:59,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:42:59,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:42:59,132 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 457 [2023-11-28 23:42:59,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 418 transitions, 846 flow. Second operand has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 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) [2023-11-28 23:42:59,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:42:59,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 457 [2023-11-28 23:42:59,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:42:59,295 INFO L124 PetriNetUnfolderBase]: 50/735 cut-off events. [2023-11-28 23:42:59,296 INFO L125 PetriNetUnfolderBase]: For 13/17 co-relation queries the response was YES. [2023-11-28 23:42:59,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 796 conditions, 735 events. 50/735 cut-off events. For 13/17 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3778 event pairs, 20 based on Foata normal form. 0/616 useless extension candidates. Maximal degree in co-relation 754. Up to 50 conditions per place. [2023-11-28 23:42:59,313 INFO L140 encePairwiseOnDemand]: 454/457 looper letters, 13 selfloop transitions, 2 changer transitions 0/417 dead transitions. [2023-11-28 23:42:59,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 417 transitions, 874 flow [2023-11-28 23:42:59,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:42:59,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:42:59,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1309 transitions. [2023-11-28 23:42:59,318 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9547775346462436 [2023-11-28 23:42:59,318 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1309 transitions. [2023-11-28 23:42:59,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1309 transitions. [2023-11-28 23:42:59,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:42:59,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1309 transitions. [2023-11-28 23:42:59,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 436.3333333333333) internal successors, (1309), 3 states have internal predecessors, (1309), 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) [2023-11-28 23:42:59,325 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:42:59,327 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:42:59,327 INFO L175 Difference]: Start difference. First operand has 406 places, 418 transitions, 846 flow. Second operand 3 states and 1309 transitions. [2023-11-28 23:42:59,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 417 transitions, 874 flow [2023-11-28 23:42:59,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 417 transitions, 870 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 23:42:59,334 INFO L231 Difference]: Finished difference. Result has 405 places, 417 transitions, 844 flow [2023-11-28 23:42:59,335 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=840, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=844, PETRI_PLACES=405, PETRI_TRANSITIONS=417} [2023-11-28 23:42:59,336 INFO L281 CegarLoopForPetriNet]: 413 programPoint places, -8 predicate places. [2023-11-28 23:42:59,336 INFO L495 AbstractCegarLoop]: Abstraction has has 405 places, 417 transitions, 844 flow [2023-11-28 23:42:59,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 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) [2023-11-28 23:42:59,337 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:42:59,337 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] [2023-11-28 23:42:59,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-28 23:42:59,338 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-28 23:42:59,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:42:59,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1270597671, now seen corresponding path program 1 times [2023-11-28 23:42:59,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:42:59,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100537056] [2023-11-28 23:42:59,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:42:59,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:42:59,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:42:59,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:42:59,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:42:59,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100537056] [2023-11-28 23:42:59,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100537056] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:42:59,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:42:59,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:42:59,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762171673] [2023-11-28 23:42:59,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:42:59,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:42:59,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:42:59,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:42:59,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:42:59,445 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 457 [2023-11-28 23:42:59,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 417 transitions, 844 flow. Second operand has 3 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 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) [2023-11-28 23:42:59,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:42:59,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 457 [2023-11-28 23:42:59,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:42:59,777 INFO L124 PetriNetUnfolderBase]: 117/1385 cut-off events. [2023-11-28 23:42:59,777 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-28 23:42:59,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1497 conditions, 1385 events. 117/1385 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 10002 event pairs, 39 based on Foata normal form. 0/1118 useless extension candidates. Maximal degree in co-relation 1447. Up to 85 conditions per place. [2023-11-28 23:42:59,817 INFO L140 encePairwiseOnDemand]: 454/457 looper letters, 15 selfloop transitions, 2 changer transitions 0/416 dead transitions. [2023-11-28 23:42:59,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 416 transitions, 876 flow [2023-11-28 23:42:59,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:42:59,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:42:59,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1305 transitions. [2023-11-28 23:42:59,822 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9518599562363238 [2023-11-28 23:42:59,822 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1305 transitions. [2023-11-28 23:42:59,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1305 transitions. [2023-11-28 23:42:59,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:42:59,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1305 transitions. [2023-11-28 23:42:59,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 435.0) internal successors, (1305), 3 states have internal predecessors, (1305), 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) [2023-11-28 23:42:59,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:42:59,833 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:42:59,833 INFO L175 Difference]: Start difference. First operand has 405 places, 417 transitions, 844 flow. Second operand 3 states and 1305 transitions. [2023-11-28 23:42:59,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 416 transitions, 876 flow [2023-11-28 23:42:59,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 416 transitions, 872 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 23:42:59,843 INFO L231 Difference]: Finished difference. Result has 404 places, 416 transitions, 842 flow [2023-11-28 23:42:59,844 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=838, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=416, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=842, PETRI_PLACES=404, PETRI_TRANSITIONS=416} [2023-11-28 23:42:59,845 INFO L281 CegarLoopForPetriNet]: 413 programPoint places, -9 predicate places. [2023-11-28 23:42:59,845 INFO L495 AbstractCegarLoop]: Abstraction has has 404 places, 416 transitions, 842 flow [2023-11-28 23:42:59,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 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) [2023-11-28 23:42:59,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:42:59,847 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] [2023-11-28 23:42:59,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-28 23:42:59,848 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-28 23:42:59,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:42:59,848 INFO L85 PathProgramCache]: Analyzing trace with hash -2095509667, now seen corresponding path program 1 times [2023-11-28 23:42:59,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:42:59,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520246708] [2023-11-28 23:42:59,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:42:59,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:42:59,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:42:59,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:42:59,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:42:59,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520246708] [2023-11-28 23:42:59,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520246708] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:42:59,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:42:59,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:42:59,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221909644] [2023-11-28 23:42:59,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:42:59,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:42:59,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:42:59,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:42:59,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:42:59,932 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 457 [2023-11-28 23:42:59,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 416 transitions, 842 flow. Second operand has 3 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 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) [2023-11-28 23:42:59,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:42:59,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 457 [2023-11-28 23:42:59,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:43:00,180 INFO L124 PetriNetUnfolderBase]: 69/940 cut-off events. [2023-11-28 23:43:00,180 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-11-28 23:43:00,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1013 conditions, 940 events. 69/940 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 5618 event pairs, 21 based on Foata normal form. 0/775 useless extension candidates. Maximal degree in co-relation 956. Up to 58 conditions per place. [2023-11-28 23:43:00,210 INFO L140 encePairwiseOnDemand]: 454/457 looper letters, 15 selfloop transitions, 2 changer transitions 0/415 dead transitions. [2023-11-28 23:43:00,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 415 transitions, 874 flow [2023-11-28 23:43:00,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:43:00,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:43:00,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1305 transitions. [2023-11-28 23:43:00,215 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9518599562363238 [2023-11-28 23:43:00,216 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1305 transitions. [2023-11-28 23:43:00,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1305 transitions. [2023-11-28 23:43:00,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:43:00,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1305 transitions. [2023-11-28 23:43:00,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 435.0) internal successors, (1305), 3 states have internal predecessors, (1305), 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) [2023-11-28 23:43:00,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:00,228 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:00,228 INFO L175 Difference]: Start difference. First operand has 404 places, 416 transitions, 842 flow. Second operand 3 states and 1305 transitions. [2023-11-28 23:43:00,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 415 transitions, 874 flow [2023-11-28 23:43:00,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 415 transitions, 870 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 23:43:00,239 INFO L231 Difference]: Finished difference. Result has 403 places, 415 transitions, 840 flow [2023-11-28 23:43:00,240 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=836, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=840, PETRI_PLACES=403, PETRI_TRANSITIONS=415} [2023-11-28 23:43:00,241 INFO L281 CegarLoopForPetriNet]: 413 programPoint places, -10 predicate places. [2023-11-28 23:43:00,241 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 415 transitions, 840 flow [2023-11-28 23:43:00,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 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) [2023-11-28 23:43:00,242 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:43:00,243 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] [2023-11-28 23:43:00,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-28 23:43:00,243 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-28 23:43:00,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:00,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1582771844, now seen corresponding path program 1 times [2023-11-28 23:43:00,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:43:00,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609603853] [2023-11-28 23:43:00,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:43:00,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:43:00,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:43:00,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:43:00,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:43:00,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609603853] [2023-11-28 23:43:00,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609603853] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:43:00,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:43:00,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:43:00,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123070071] [2023-11-28 23:43:00,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:43:00,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:43:00,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:43:00,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:43:00,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:43:00,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 457 [2023-11-28 23:43:00,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 415 transitions, 840 flow. Second operand has 3 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 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) [2023-11-28 23:43:00,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:43:00,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 457 [2023-11-28 23:43:00,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:43:00,590 INFO L124 PetriNetUnfolderBase]: 117/1353 cut-off events. [2023-11-28 23:43:00,590 INFO L125 PetriNetUnfolderBase]: For 21/26 co-relation queries the response was YES. [2023-11-28 23:43:00,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1450 conditions, 1353 events. 117/1353 cut-off events. For 21/26 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 8710 event pairs, 39 based on Foata normal form. 0/1098 useless extension candidates. Maximal degree in co-relation 1386. Up to 85 conditions per place. [2023-11-28 23:43:00,610 INFO L140 encePairwiseOnDemand]: 454/457 looper letters, 15 selfloop transitions, 2 changer transitions 0/414 dead transitions. [2023-11-28 23:43:00,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 414 transitions, 872 flow [2023-11-28 23:43:00,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:43:00,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:43:00,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1305 transitions. [2023-11-28 23:43:00,614 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9518599562363238 [2023-11-28 23:43:00,614 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1305 transitions. [2023-11-28 23:43:00,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1305 transitions. [2023-11-28 23:43:00,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:43:00,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1305 transitions. [2023-11-28 23:43:00,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 435.0) internal successors, (1305), 3 states have internal predecessors, (1305), 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) [2023-11-28 23:43:00,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:00,623 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:00,623 INFO L175 Difference]: Start difference. First operand has 403 places, 415 transitions, 840 flow. Second operand 3 states and 1305 transitions. [2023-11-28 23:43:00,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 414 transitions, 872 flow [2023-11-28 23:43:00,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 414 transitions, 868 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 23:43:00,629 INFO L231 Difference]: Finished difference. Result has 402 places, 414 transitions, 838 flow [2023-11-28 23:43:00,630 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=834, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=838, PETRI_PLACES=402, PETRI_TRANSITIONS=414} [2023-11-28 23:43:00,631 INFO L281 CegarLoopForPetriNet]: 413 programPoint places, -11 predicate places. [2023-11-28 23:43:00,631 INFO L495 AbstractCegarLoop]: Abstraction has has 402 places, 414 transitions, 838 flow [2023-11-28 23:43:00,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 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) [2023-11-28 23:43:00,633 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:43:00,633 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] [2023-11-28 23:43:00,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-28 23:43:00,633 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-28 23:43:00,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:00,634 INFO L85 PathProgramCache]: Analyzing trace with hash -2015066407, now seen corresponding path program 1 times [2023-11-28 23:43:00,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:43:00,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229476162] [2023-11-28 23:43:00,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:43:00,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:43:00,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:43:00,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:43:00,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:43:00,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229476162] [2023-11-28 23:43:00,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229476162] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:43:00,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:43:00,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:43:00,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540819942] [2023-11-28 23:43:00,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:43:00,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:43:00,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:43:00,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:43:00,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:43:00,705 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 457 [2023-11-28 23:43:00,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 414 transitions, 838 flow. Second operand has 3 states, 3 states have (on average 424.3333333333333) internal successors, (1273), 3 states have internal predecessors, (1273), 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) [2023-11-28 23:43:00,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:43:00,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 457 [2023-11-28 23:43:00,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:43:01,122 INFO L124 PetriNetUnfolderBase]: 304/2602 cut-off events. [2023-11-28 23:43:01,123 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-11-28 23:43:01,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2933 conditions, 2602 events. 304/2602 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 23890 event pairs, 66 based on Foata normal form. 0/2149 useless extension candidates. Maximal degree in co-relation 2862. Up to 265 conditions per place. [2023-11-28 23:43:01,160 INFO L140 encePairwiseOnDemand]: 449/457 looper letters, 21 selfloop transitions, 2 changer transitions 0/412 dead transitions. [2023-11-28 23:43:01,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 412 transitions, 882 flow [2023-11-28 23:43:01,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:43:01,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:43:01,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1298 transitions. [2023-11-28 23:43:01,165 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9467541940189642 [2023-11-28 23:43:01,165 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1298 transitions. [2023-11-28 23:43:01,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1298 transitions. [2023-11-28 23:43:01,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:43:01,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1298 transitions. [2023-11-28 23:43:01,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 432.6666666666667) internal successors, (1298), 3 states have internal predecessors, (1298), 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) [2023-11-28 23:43:01,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:01,174 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:01,174 INFO L175 Difference]: Start difference. First operand has 402 places, 414 transitions, 838 flow. Second operand 3 states and 1298 transitions. [2023-11-28 23:43:01,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 412 transitions, 882 flow [2023-11-28 23:43:01,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 412 transitions, 878 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 23:43:01,183 INFO L231 Difference]: Finished difference. Result has 397 places, 410 transitions, 836 flow [2023-11-28 23:43:01,184 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=822, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=836, PETRI_PLACES=397, PETRI_TRANSITIONS=410} [2023-11-28 23:43:01,185 INFO L281 CegarLoopForPetriNet]: 413 programPoint places, -16 predicate places. [2023-11-28 23:43:01,185 INFO L495 AbstractCegarLoop]: Abstraction has has 397 places, 410 transitions, 836 flow [2023-11-28 23:43:01,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 424.3333333333333) internal successors, (1273), 3 states have internal predecessors, (1273), 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) [2023-11-28 23:43:01,186 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:43:01,186 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:43:01,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-28 23:43:01,187 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-28 23:43:01,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:01,188 INFO L85 PathProgramCache]: Analyzing trace with hash 551467163, now seen corresponding path program 1 times [2023-11-28 23:43:01,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:43:01,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083777481] [2023-11-28 23:43:01,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:43:01,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:43:01,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:43:01,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:43:01,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:43:01,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083777481] [2023-11-28 23:43:01,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083777481] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:43:01,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:43:01,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:43:01,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640251518] [2023-11-28 23:43:01,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:43:01,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:43:01,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:43:01,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:43:01,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:43:01,280 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 457 [2023-11-28 23:43:01,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 410 transitions, 836 flow. Second operand has 3 states, 3 states have (on average 424.3333333333333) internal successors, (1273), 3 states have internal predecessors, (1273), 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) [2023-11-28 23:43:01,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:43:01,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 457 [2023-11-28 23:43:01,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:43:01,618 INFO L124 PetriNetUnfolderBase]: 157/1644 cut-off events. [2023-11-28 23:43:01,618 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-11-28 23:43:01,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1808 conditions, 1644 events. 157/1644 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 12045 event pairs, 52 based on Foata normal form. 0/1377 useless extension candidates. Maximal degree in co-relation 1635. Up to 135 conditions per place. [2023-11-28 23:43:01,642 INFO L140 encePairwiseOnDemand]: 449/457 looper letters, 21 selfloop transitions, 2 changer transitions 0/408 dead transitions. [2023-11-28 23:43:01,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 408 transitions, 880 flow [2023-11-28 23:43:01,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:43:01,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:43:01,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1298 transitions. [2023-11-28 23:43:01,645 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9467541940189642 [2023-11-28 23:43:01,645 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1298 transitions. [2023-11-28 23:43:01,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1298 transitions. [2023-11-28 23:43:01,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:43:01,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1298 transitions. [2023-11-28 23:43:01,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 432.6666666666667) internal successors, (1298), 3 states have internal predecessors, (1298), 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) [2023-11-28 23:43:01,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:01,652 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:01,652 INFO L175 Difference]: Start difference. First operand has 397 places, 410 transitions, 836 flow. Second operand 3 states and 1298 transitions. [2023-11-28 23:43:01,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 408 transitions, 880 flow [2023-11-28 23:43:01,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 408 transitions, 880 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-28 23:43:01,659 INFO L231 Difference]: Finished difference. Result has 394 places, 406 transitions, 838 flow [2023-11-28 23:43:01,660 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=838, PETRI_PLACES=394, PETRI_TRANSITIONS=406} [2023-11-28 23:43:01,661 INFO L281 CegarLoopForPetriNet]: 413 programPoint places, -19 predicate places. [2023-11-28 23:43:01,661 INFO L495 AbstractCegarLoop]: Abstraction has has 394 places, 406 transitions, 838 flow [2023-11-28 23:43:01,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 424.3333333333333) internal successors, (1273), 3 states have internal predecessors, (1273), 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) [2023-11-28 23:43:01,662 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:43:01,662 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] [2023-11-28 23:43:01,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-28 23:43:01,662 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-28 23:43:01,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:01,662 INFO L85 PathProgramCache]: Analyzing trace with hash -2055062399, now seen corresponding path program 1 times [2023-11-28 23:43:01,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:43:01,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465119278] [2023-11-28 23:43:01,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:43:01,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:43:01,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:43:01,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:43:01,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:43:01,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465119278] [2023-11-28 23:43:01,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465119278] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:43:01,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:43:01,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:43:01,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431880995] [2023-11-28 23:43:01,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:43:01,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:43:01,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:43:01,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:43:01,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:43:01,735 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 457 [2023-11-28 23:43:01,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 406 transitions, 838 flow. Second operand has 3 states, 3 states have (on average 424.6666666666667) internal successors, (1274), 3 states have internal predecessors, (1274), 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) [2023-11-28 23:43:01,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:43:01,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 457 [2023-11-28 23:43:01,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:43:02,384 INFO L124 PetriNetUnfolderBase]: 505/4378 cut-off events. [2023-11-28 23:43:02,385 INFO L125 PetriNetUnfolderBase]: For 63/71 co-relation queries the response was YES. [2023-11-28 23:43:02,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4859 conditions, 4378 events. 505/4378 cut-off events. For 63/71 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 44535 event pairs, 126 based on Foata normal form. 0/3705 useless extension candidates. Maximal degree in co-relation 3665. Up to 445 conditions per place. [2023-11-28 23:43:02,439 INFO L140 encePairwiseOnDemand]: 449/457 looper letters, 21 selfloop transitions, 2 changer transitions 0/404 dead transitions. [2023-11-28 23:43:02,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 404 transitions, 882 flow [2023-11-28 23:43:02,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:43:02,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:43:02,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1298 transitions. [2023-11-28 23:43:02,444 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9467541940189642 [2023-11-28 23:43:02,444 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1298 transitions. [2023-11-28 23:43:02,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1298 transitions. [2023-11-28 23:43:02,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:43:02,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1298 transitions. [2023-11-28 23:43:02,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 432.6666666666667) internal successors, (1298), 3 states have internal predecessors, (1298), 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) [2023-11-28 23:43:02,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:02,454 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:02,455 INFO L175 Difference]: Start difference. First operand has 394 places, 406 transitions, 838 flow. Second operand 3 states and 1298 transitions. [2023-11-28 23:43:02,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 404 transitions, 882 flow [2023-11-28 23:43:02,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 404 transitions, 882 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-28 23:43:02,465 INFO L231 Difference]: Finished difference. Result has 391 places, 402 transitions, 840 flow [2023-11-28 23:43:02,466 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=826, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=840, PETRI_PLACES=391, PETRI_TRANSITIONS=402} [2023-11-28 23:43:02,467 INFO L281 CegarLoopForPetriNet]: 413 programPoint places, -22 predicate places. [2023-11-28 23:43:02,467 INFO L495 AbstractCegarLoop]: Abstraction has has 391 places, 402 transitions, 840 flow [2023-11-28 23:43:02,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 424.6666666666667) internal successors, (1274), 3 states have internal predecessors, (1274), 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) [2023-11-28 23:43:02,468 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:43:02,468 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] [2023-11-28 23:43:02,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-28 23:43:02,469 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-28 23:43:02,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:02,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1587002642, now seen corresponding path program 1 times [2023-11-28 23:43:02,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:43:02,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818404674] [2023-11-28 23:43:02,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:43:02,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:43:02,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:43:02,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:43:02,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:43:02,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818404674] [2023-11-28 23:43:02,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818404674] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:43:02,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:43:02,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:43:02,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478849189] [2023-11-28 23:43:02,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:43:02,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:43:02,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:43:02,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:43:02,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:43:02,528 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 457 [2023-11-28 23:43:02,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 402 transitions, 840 flow. Second operand has 3 states, 3 states have (on average 436.3333333333333) internal successors, (1309), 3 states have internal predecessors, (1309), 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) [2023-11-28 23:43:02,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:43:02,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 457 [2023-11-28 23:43:02,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:43:02,808 INFO L124 PetriNetUnfolderBase]: 79/1037 cut-off events. [2023-11-28 23:43:02,808 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-28 23:43:02,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1132 conditions, 1037 events. 79/1037 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 6873 event pairs, 10 based on Foata normal form. 0/895 useless extension candidates. Maximal degree in co-relation 871. Up to 35 conditions per place. [2023-11-28 23:43:02,832 INFO L140 encePairwiseOnDemand]: 453/457 looper letters, 14 selfloop transitions, 3 changer transitions 0/406 dead transitions. [2023-11-28 23:43:02,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 406 transitions, 884 flow [2023-11-28 23:43:02,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:43:02,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:43:02,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1323 transitions. [2023-11-28 23:43:02,838 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9649890590809628 [2023-11-28 23:43:02,838 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1323 transitions. [2023-11-28 23:43:02,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1323 transitions. [2023-11-28 23:43:02,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:43:02,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1323 transitions. [2023-11-28 23:43:02,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 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) [2023-11-28 23:43:02,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:02,849 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:02,849 INFO L175 Difference]: Start difference. First operand has 391 places, 402 transitions, 840 flow. Second operand 3 states and 1323 transitions. [2023-11-28 23:43:02,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 406 transitions, 884 flow [2023-11-28 23:43:02,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 406 transitions, 884 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-28 23:43:02,861 INFO L231 Difference]: Finished difference. Result has 395 places, 404 transitions, 862 flow [2023-11-28 23:43:02,862 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=840, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=862, PETRI_PLACES=395, PETRI_TRANSITIONS=404} [2023-11-28 23:43:02,863 INFO L281 CegarLoopForPetriNet]: 413 programPoint places, -18 predicate places. [2023-11-28 23:43:02,863 INFO L495 AbstractCegarLoop]: Abstraction has has 395 places, 404 transitions, 862 flow [2023-11-28 23:43:02,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 436.3333333333333) internal successors, (1309), 3 states have internal predecessors, (1309), 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) [2023-11-28 23:43:02,864 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:43:02,864 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] [2023-11-28 23:43:02,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-28 23:43:02,865 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-28 23:43:02,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:02,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1249513072, now seen corresponding path program 1 times [2023-11-28 23:43:02,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:43:02,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537449568] [2023-11-28 23:43:02,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:43:02,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:43:02,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:43:02,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:43:02,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:43:02,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537449568] [2023-11-28 23:43:02,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537449568] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:43:02,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:43:02,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:43:02,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350350186] [2023-11-28 23:43:02,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:43:02,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:43:02,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:43:02,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:43:02,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:43:02,940 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 457 [2023-11-28 23:43:02,941 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 404 transitions, 862 flow. Second operand has 3 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 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) [2023-11-28 23:43:02,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:43:02,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 457 [2023-11-28 23:43:02,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:43:03,500 INFO L124 PetriNetUnfolderBase]: 206/2246 cut-off events. [2023-11-28 23:43:03,501 INFO L125 PetriNetUnfolderBase]: For 32/38 co-relation queries the response was YES. [2023-11-28 23:43:03,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2538 conditions, 2246 events. 206/2246 cut-off events. For 32/38 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 19414 event pairs, 16 based on Foata normal form. 1/1968 useless extension candidates. Maximal degree in co-relation 2154. Up to 166 conditions per place. [2023-11-28 23:43:03,554 INFO L140 encePairwiseOnDemand]: 449/457 looper letters, 20 selfloop transitions, 4 changer transitions 0/409 dead transitions. [2023-11-28 23:43:03,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 409 transitions, 925 flow [2023-11-28 23:43:03,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:43:03,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:43:03,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1315 transitions. [2023-11-28 23:43:03,559 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9591539022611233 [2023-11-28 23:43:03,560 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1315 transitions. [2023-11-28 23:43:03,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1315 transitions. [2023-11-28 23:43:03,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:43:03,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1315 transitions. [2023-11-28 23:43:03,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 438.3333333333333) internal successors, (1315), 3 states have internal predecessors, (1315), 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) [2023-11-28 23:43:03,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:03,571 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:03,571 INFO L175 Difference]: Start difference. First operand has 395 places, 404 transitions, 862 flow. Second operand 3 states and 1315 transitions. [2023-11-28 23:43:03,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 409 transitions, 925 flow [2023-11-28 23:43:03,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 409 transitions, 919 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 23:43:03,583 INFO L231 Difference]: Finished difference. Result has 392 places, 404 transitions, 876 flow [2023-11-28 23:43:03,584 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=876, PETRI_PLACES=392, PETRI_TRANSITIONS=404} [2023-11-28 23:43:03,585 INFO L281 CegarLoopForPetriNet]: 413 programPoint places, -21 predicate places. [2023-11-28 23:43:03,585 INFO L495 AbstractCegarLoop]: Abstraction has has 392 places, 404 transitions, 876 flow [2023-11-28 23:43:03,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 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) [2023-11-28 23:43:03,586 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:43:03,586 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] [2023-11-28 23:43:03,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-28 23:43:03,587 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-28 23:43:03,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:03,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1808815990, now seen corresponding path program 1 times [2023-11-28 23:43:03,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:43:03,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774661552] [2023-11-28 23:43:03,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:43:03,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:43:03,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:43:03,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:43:03,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:43:03,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774661552] [2023-11-28 23:43:03,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774661552] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:43:03,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:43:03,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:43:03,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185159578] [2023-11-28 23:43:03,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:43:03,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:43:03,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:43:03,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:43:03,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:43:03,660 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 457 [2023-11-28 23:43:03,662 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 404 transitions, 876 flow. Second operand has 3 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 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) [2023-11-28 23:43:03,662 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:43:03,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 457 [2023-11-28 23:43:03,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:43:04,294 INFO L124 PetriNetUnfolderBase]: 265/3102 cut-off events. [2023-11-28 23:43:04,294 INFO L125 PetriNetUnfolderBase]: For 43/45 co-relation queries the response was YES. [2023-11-28 23:43:04,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3438 conditions, 3102 events. 265/3102 cut-off events. For 43/45 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 27431 event pairs, 36 based on Foata normal form. 0/2704 useless extension candidates. Maximal degree in co-relation 3104. Up to 198 conditions per place. [2023-11-28 23:43:04,362 INFO L140 encePairwiseOnDemand]: 449/457 looper letters, 20 selfloop transitions, 4 changer transitions 0/409 dead transitions. [2023-11-28 23:43:04,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 409 transitions, 939 flow [2023-11-28 23:43:04,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:43:04,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:43:04,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1315 transitions. [2023-11-28 23:43:04,367 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9591539022611233 [2023-11-28 23:43:04,367 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1315 transitions. [2023-11-28 23:43:04,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1315 transitions. [2023-11-28 23:43:04,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:43:04,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1315 transitions. [2023-11-28 23:43:04,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 438.3333333333333) internal successors, (1315), 3 states have internal predecessors, (1315), 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) [2023-11-28 23:43:04,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:04,373 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:04,373 INFO L175 Difference]: Start difference. First operand has 392 places, 404 transitions, 876 flow. Second operand 3 states and 1315 transitions. [2023-11-28 23:43:04,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 409 transitions, 939 flow [2023-11-28 23:43:04,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 409 transitions, 939 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-28 23:43:04,380 INFO L231 Difference]: Finished difference. Result has 391 places, 404 transitions, 896 flow [2023-11-28 23:43:04,381 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=868, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=896, PETRI_PLACES=391, PETRI_TRANSITIONS=404} [2023-11-28 23:43:04,382 INFO L281 CegarLoopForPetriNet]: 413 programPoint places, -22 predicate places. [2023-11-28 23:43:04,382 INFO L495 AbstractCegarLoop]: Abstraction has has 391 places, 404 transitions, 896 flow [2023-11-28 23:43:04,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 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) [2023-11-28 23:43:04,383 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:43:04,383 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] [2023-11-28 23:43:04,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-28 23:43:04,383 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-28 23:43:04,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:04,384 INFO L85 PathProgramCache]: Analyzing trace with hash -310300486, now seen corresponding path program 1 times [2023-11-28 23:43:04,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:43:04,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563443565] [2023-11-28 23:43:04,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:43:04,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:43:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:43:04,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:43:04,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:43:04,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563443565] [2023-11-28 23:43:04,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563443565] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:43:04,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:43:04,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:43:04,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662789444] [2023-11-28 23:43:04,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:43:04,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:43:04,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:43:04,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:43:04,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:43:04,426 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 436 out of 457 [2023-11-28 23:43:04,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 404 transitions, 896 flow. Second operand has 3 states, 3 states have (on average 437.3333333333333) internal successors, (1312), 3 states have internal predecessors, (1312), 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) [2023-11-28 23:43:04,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:43:04,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 436 of 457 [2023-11-28 23:43:04,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:43:04,904 INFO L124 PetriNetUnfolderBase]: 236/3053 cut-off events. [2023-11-28 23:43:04,904 INFO L125 PetriNetUnfolderBase]: For 10/18 co-relation queries the response was YES. [2023-11-28 23:43:04,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3381 conditions, 3053 events. 236/3053 cut-off events. For 10/18 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 28518 event pairs, 14 based on Foata normal form. 1/2679 useless extension candidates. Maximal degree in co-relation 3047. Up to 62 conditions per place. [2023-11-28 23:43:04,974 INFO L140 encePairwiseOnDemand]: 454/457 looper letters, 11 selfloop transitions, 2 changer transitions 0/405 dead transitions. [2023-11-28 23:43:04,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 405 transitions, 926 flow [2023-11-28 23:43:04,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:43:04,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:43:04,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1322 transitions. [2023-11-28 23:43:04,979 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9642596644784829 [2023-11-28 23:43:04,979 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1322 transitions. [2023-11-28 23:43:04,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1322 transitions. [2023-11-28 23:43:04,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:43:04,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1322 transitions. [2023-11-28 23:43:04,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 440.6666666666667) internal successors, (1322), 3 states have internal predecessors, (1322), 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) [2023-11-28 23:43:04,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:04,987 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:04,988 INFO L175 Difference]: Start difference. First operand has 391 places, 404 transitions, 896 flow. Second operand 3 states and 1322 transitions. [2023-11-28 23:43:04,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 405 transitions, 926 flow [2023-11-28 23:43:04,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 405 transitions, 926 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-28 23:43:04,997 INFO L231 Difference]: Finished difference. Result has 392 places, 403 transitions, 898 flow [2023-11-28 23:43:04,998 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=894, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=898, PETRI_PLACES=392, PETRI_TRANSITIONS=403} [2023-11-28 23:43:04,998 INFO L281 CegarLoopForPetriNet]: 413 programPoint places, -21 predicate places. [2023-11-28 23:43:04,999 INFO L495 AbstractCegarLoop]: Abstraction has has 392 places, 403 transitions, 898 flow [2023-11-28 23:43:04,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 437.3333333333333) internal successors, (1312), 3 states have internal predecessors, (1312), 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) [2023-11-28 23:43:04,999 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:43:04,999 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] [2023-11-28 23:43:05,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-28 23:43:05,000 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-28 23:43:05,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:05,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1633857748, now seen corresponding path program 1 times [2023-11-28 23:43:05,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:43:05,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348341206] [2023-11-28 23:43:05,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:43:05,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:43:05,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:43:05,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:43:05,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:43:05,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348341206] [2023-11-28 23:43:05,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348341206] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:43:05,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:43:05,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:43:05,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691325700] [2023-11-28 23:43:05,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:43:05,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:43:05,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:43:05,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:43:05,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:43:05,050 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 457 [2023-11-28 23:43:05,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 403 transitions, 898 flow. Second operand has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 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) [2023-11-28 23:43:05,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:43:05,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 457 [2023-11-28 23:43:05,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:43:05,612 INFO L124 PetriNetUnfolderBase]: 260/3036 cut-off events. [2023-11-28 23:43:05,612 INFO L125 PetriNetUnfolderBase]: For 33/72 co-relation queries the response was YES. [2023-11-28 23:43:05,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3455 conditions, 3036 events. 260/3036 cut-off events. For 33/72 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 28534 event pairs, 42 based on Foata normal form. 1/2655 useless extension candidates. Maximal degree in co-relation 2938. Up to 136 conditions per place. [2023-11-28 23:43:05,661 INFO L140 encePairwiseOnDemand]: 453/457 looper letters, 14 selfloop transitions, 3 changer transitions 0/407 dead transitions. [2023-11-28 23:43:05,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 407 transitions, 942 flow [2023-11-28 23:43:05,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:43:05,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:43:05,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1323 transitions. [2023-11-28 23:43:05,665 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9649890590809628 [2023-11-28 23:43:05,665 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1323 transitions. [2023-11-28 23:43:05,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1323 transitions. [2023-11-28 23:43:05,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:43:05,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1323 transitions. [2023-11-28 23:43:05,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 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) [2023-11-28 23:43:05,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:05,672 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:05,672 INFO L175 Difference]: Start difference. First operand has 392 places, 403 transitions, 898 flow. Second operand 3 states and 1323 transitions. [2023-11-28 23:43:05,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 407 transitions, 942 flow [2023-11-28 23:43:05,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 407 transitions, 938 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 23:43:05,679 INFO L231 Difference]: Finished difference. Result has 394 places, 405 transitions, 916 flow [2023-11-28 23:43:05,679 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=894, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=916, PETRI_PLACES=394, PETRI_TRANSITIONS=405} [2023-11-28 23:43:05,680 INFO L281 CegarLoopForPetriNet]: 413 programPoint places, -19 predicate places. [2023-11-28 23:43:05,680 INFO L495 AbstractCegarLoop]: Abstraction has has 394 places, 405 transitions, 916 flow [2023-11-28 23:43:05,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 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) [2023-11-28 23:43:05,680 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:43:05,681 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] [2023-11-28 23:43:05,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-28 23:43:05,681 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-28 23:43:05,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:05,681 INFO L85 PathProgramCache]: Analyzing trace with hash 113451777, now seen corresponding path program 1 times [2023-11-28 23:43:05,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:43:05,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786727687] [2023-11-28 23:43:05,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:43:05,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:43:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:43:06,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:43:06,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:43:06,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786727687] [2023-11-28 23:43:06,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786727687] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:43:06,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:43:06,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:43:06,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010494137] [2023-11-28 23:43:06,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:43:06,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:43:06,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:43:06,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:43:06,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:43:06,199 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 457 [2023-11-28 23:43:06,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 405 transitions, 916 flow. Second operand has 6 states, 6 states have (on average 433.6666666666667) internal successors, (2602), 6 states have internal predecessors, (2602), 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) [2023-11-28 23:43:06,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:43:06,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 457 [2023-11-28 23:43:06,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:43:06,615 INFO L124 PetriNetUnfolderBase]: 118/1736 cut-off events. [2023-11-28 23:43:06,615 INFO L125 PetriNetUnfolderBase]: For 28/42 co-relation queries the response was YES. [2023-11-28 23:43:06,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1939 conditions, 1736 events. 118/1736 cut-off events. For 28/42 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 13167 event pairs, 2 based on Foata normal form. 8/1541 useless extension candidates. Maximal degree in co-relation 1674. Up to 42 conditions per place. [2023-11-28 23:43:06,651 INFO L140 encePairwiseOnDemand]: 452/457 looper letters, 9 selfloop transitions, 4 changer transitions 0/404 dead transitions. [2023-11-28 23:43:06,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 404 transitions, 940 flow [2023-11-28 23:43:06,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:43:06,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 23:43:06,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2606 transitions. [2023-11-28 23:43:06,660 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.950401167031364 [2023-11-28 23:43:06,661 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2606 transitions. [2023-11-28 23:43:06,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2606 transitions. [2023-11-28 23:43:06,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:43:06,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2606 transitions. [2023-11-28 23:43:06,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 434.3333333333333) internal successors, (2606), 6 states have internal predecessors, (2606), 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) [2023-11-28 23:43:06,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 457.0) internal successors, (3199), 7 states have internal predecessors, (3199), 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) [2023-11-28 23:43:06,679 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 457.0) internal successors, (3199), 7 states have internal predecessors, (3199), 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) [2023-11-28 23:43:06,679 INFO L175 Difference]: Start difference. First operand has 394 places, 405 transitions, 916 flow. Second operand 6 states and 2606 transitions. [2023-11-28 23:43:06,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 404 transitions, 940 flow [2023-11-28 23:43:06,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 404 transitions, 934 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 23:43:06,690 INFO L231 Difference]: Finished difference. Result has 396 places, 404 transitions, 916 flow [2023-11-28 23:43:06,691 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=908, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=916, PETRI_PLACES=396, PETRI_TRANSITIONS=404} [2023-11-28 23:43:06,692 INFO L281 CegarLoopForPetriNet]: 413 programPoint places, -17 predicate places. [2023-11-28 23:43:06,692 INFO L495 AbstractCegarLoop]: Abstraction has has 396 places, 404 transitions, 916 flow [2023-11-28 23:43:06,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 433.6666666666667) internal successors, (2602), 6 states have internal predecessors, (2602), 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) [2023-11-28 23:43:06,693 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:43:06,693 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] [2023-11-28 23:43:06,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-28 23:43:06,694 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-28 23:43:06,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:06,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1415415204, now seen corresponding path program 1 times [2023-11-28 23:43:06,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:43:06,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531205525] [2023-11-28 23:43:06,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:43:06,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:43:06,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:43:06,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:43:06,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:43:06,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531205525] [2023-11-28 23:43:06,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531205525] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:43:06,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:43:06,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:43:06,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029395001] [2023-11-28 23:43:06,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:43:06,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:43:06,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:43:06,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:43:06,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:43:06,769 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 457 [2023-11-28 23:43:06,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 404 transitions, 916 flow. Second operand has 3 states, 3 states have (on average 430.6666666666667) internal successors, (1292), 3 states have internal predecessors, (1292), 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) [2023-11-28 23:43:06,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:43:06,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 457 [2023-11-28 23:43:06,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:43:07,875 INFO L124 PetriNetUnfolderBase]: 648/5951 cut-off events. [2023-11-28 23:43:07,875 INFO L125 PetriNetUnfolderBase]: For 80/88 co-relation queries the response was YES. [2023-11-28 23:43:07,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6904 conditions, 5951 events. 648/5951 cut-off events. For 80/88 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 65276 event pairs, 68 based on Foata normal form. 1/5312 useless extension candidates. Maximal degree in co-relation 6319. Up to 585 conditions per place. [2023-11-28 23:43:07,938 INFO L140 encePairwiseOnDemand]: 449/457 looper letters, 19 selfloop transitions, 4 changer transitions 0/408 dead transitions. [2023-11-28 23:43:07,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 408 transitions, 974 flow [2023-11-28 23:43:07,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:43:07,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:43:07,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1314 transitions. [2023-11-28 23:43:07,942 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9584245076586433 [2023-11-28 23:43:07,942 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1314 transitions. [2023-11-28 23:43:07,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1314 transitions. [2023-11-28 23:43:07,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:43:07,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1314 transitions. [2023-11-28 23:43:07,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 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) [2023-11-28 23:43:07,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:07,949 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:07,949 INFO L175 Difference]: Start difference. First operand has 396 places, 404 transitions, 916 flow. Second operand 3 states and 1314 transitions. [2023-11-28 23:43:07,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 408 transitions, 974 flow [2023-11-28 23:43:07,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 408 transitions, 967 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-28 23:43:07,959 INFO L231 Difference]: Finished difference. Result has 391 places, 404 transitions, 929 flow [2023-11-28 23:43:07,960 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=901, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=929, PETRI_PLACES=391, PETRI_TRANSITIONS=404} [2023-11-28 23:43:07,960 INFO L281 CegarLoopForPetriNet]: 413 programPoint places, -22 predicate places. [2023-11-28 23:43:07,961 INFO L495 AbstractCegarLoop]: Abstraction has has 391 places, 404 transitions, 929 flow [2023-11-28 23:43:07,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 430.6666666666667) internal successors, (1292), 3 states have internal predecessors, (1292), 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) [2023-11-28 23:43:07,961 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:43:07,961 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] [2023-11-28 23:43:07,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-28 23:43:07,962 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-28 23:43:07,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:07,962 INFO L85 PathProgramCache]: Analyzing trace with hash 760435616, now seen corresponding path program 1 times [2023-11-28 23:43:07,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:43:07,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558002197] [2023-11-28 23:43:07,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:43:07,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:43:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:43:08,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:43:08,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:43:08,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558002197] [2023-11-28 23:43:08,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558002197] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:43:08,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:43:08,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:43:08,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945688590] [2023-11-28 23:43:08,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:43:08,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:43:08,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:43:08,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:43:08,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:43:08,017 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 457 [2023-11-28 23:43:08,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 404 transitions, 929 flow. Second operand has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 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) [2023-11-28 23:43:08,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:43:08,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 457 [2023-11-28 23:43:08,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:43:08,966 INFO L124 PetriNetUnfolderBase]: 512/5395 cut-off events. [2023-11-28 23:43:08,966 INFO L125 PetriNetUnfolderBase]: For 41/63 co-relation queries the response was YES. [2023-11-28 23:43:09,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6312 conditions, 5395 events. 512/5395 cut-off events. For 41/63 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 58939 event pairs, 36 based on Foata normal form. 2/4839 useless extension candidates. Maximal degree in co-relation 5133. Up to 188 conditions per place. [2023-11-28 23:43:09,035 INFO L140 encePairwiseOnDemand]: 454/457 looper letters, 12 selfloop transitions, 2 changer transitions 0/405 dead transitions. [2023-11-28 23:43:09,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 405 transitions, 961 flow [2023-11-28 23:43:09,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:43:09,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:43:09,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1320 transitions. [2023-11-28 23:43:09,040 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.962800875273523 [2023-11-28 23:43:09,040 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1320 transitions. [2023-11-28 23:43:09,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1320 transitions. [2023-11-28 23:43:09,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:43:09,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1320 transitions. [2023-11-28 23:43:09,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 440.0) internal successors, (1320), 3 states have internal predecessors, (1320), 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) [2023-11-28 23:43:09,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:09,047 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:09,047 INFO L175 Difference]: Start difference. First operand has 391 places, 404 transitions, 929 flow. Second operand 3 states and 1320 transitions. [2023-11-28 23:43:09,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 405 transitions, 961 flow [2023-11-28 23:43:09,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 405 transitions, 961 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-28 23:43:09,057 INFO L231 Difference]: Finished difference. Result has 392 places, 403 transitions, 931 flow [2023-11-28 23:43:09,058 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=927, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=931, PETRI_PLACES=392, PETRI_TRANSITIONS=403} [2023-11-28 23:43:09,058 INFO L281 CegarLoopForPetriNet]: 413 programPoint places, -21 predicate places. [2023-11-28 23:43:09,058 INFO L495 AbstractCegarLoop]: Abstraction has has 392 places, 403 transitions, 931 flow [2023-11-28 23:43:09,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 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) [2023-11-28 23:43:09,059 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:43:09,059 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] [2023-11-28 23:43:09,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-28 23:43:09,060 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-28 23:43:09,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:09,060 INFO L85 PathProgramCache]: Analyzing trace with hash -96332526, now seen corresponding path program 1 times [2023-11-28 23:43:09,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:43:09,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403591452] [2023-11-28 23:43:09,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:43:09,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:43:09,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:43:09,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:43:09,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:43:09,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403591452] [2023-11-28 23:43:09,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403591452] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:43:09,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:43:09,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:43:09,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135095720] [2023-11-28 23:43:09,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:43:09,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:43:09,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:43:09,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:43:09,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:43:09,121 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 457 [2023-11-28 23:43:09,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 403 transitions, 931 flow. Second operand has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 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) [2023-11-28 23:43:09,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:43:09,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 457 [2023-11-28 23:43:09,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:43:10,034 INFO L124 PetriNetUnfolderBase]: 400/4092 cut-off events. [2023-11-28 23:43:10,034 INFO L125 PetriNetUnfolderBase]: For 111/123 co-relation queries the response was YES. [2023-11-28 23:43:10,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4925 conditions, 4092 events. 400/4092 cut-off events. For 111/123 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 39889 event pairs, 64 based on Foata normal form. 0/3629 useless extension candidates. Maximal degree in co-relation 4819. Up to 293 conditions per place. [2023-11-28 23:43:10,110 INFO L140 encePairwiseOnDemand]: 453/457 looper letters, 14 selfloop transitions, 3 changer transitions 0/407 dead transitions. [2023-11-28 23:43:10,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 407 transitions, 975 flow [2023-11-28 23:43:10,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:43:10,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:43:10,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1323 transitions. [2023-11-28 23:43:10,113 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9649890590809628 [2023-11-28 23:43:10,113 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1323 transitions. [2023-11-28 23:43:10,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1323 transitions. [2023-11-28 23:43:10,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:43:10,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1323 transitions. [2023-11-28 23:43:10,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 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) [2023-11-28 23:43:10,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:10,118 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:10,118 INFO L175 Difference]: Start difference. First operand has 392 places, 403 transitions, 931 flow. Second operand 3 states and 1323 transitions. [2023-11-28 23:43:10,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 407 transitions, 975 flow [2023-11-28 23:43:10,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 407 transitions, 971 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 23:43:10,125 INFO L231 Difference]: Finished difference. Result has 394 places, 405 transitions, 949 flow [2023-11-28 23:43:10,126 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=927, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=949, PETRI_PLACES=394, PETRI_TRANSITIONS=405} [2023-11-28 23:43:10,126 INFO L281 CegarLoopForPetriNet]: 413 programPoint places, -19 predicate places. [2023-11-28 23:43:10,126 INFO L495 AbstractCegarLoop]: Abstraction has has 394 places, 405 transitions, 949 flow [2023-11-28 23:43:10,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 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) [2023-11-28 23:43:10,127 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:43:10,127 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:43:10,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-28 23:43:10,127 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-28 23:43:10,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:10,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1015578402, now seen corresponding path program 1 times [2023-11-28 23:43:10,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:43:10,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602376149] [2023-11-28 23:43:10,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:43:10,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:43:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:43:10,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:43:10,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:43:10,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602376149] [2023-11-28 23:43:10,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602376149] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:43:10,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:43:10,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:43:10,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542969876] [2023-11-28 23:43:10,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:43:10,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:43:10,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:43:10,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:43:10,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:43:10,173 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 457 [2023-11-28 23:43:10,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 405 transitions, 949 flow. Second operand has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 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) [2023-11-28 23:43:10,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:43:10,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 457 [2023-11-28 23:43:10,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:43:10,784 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1237] L56-51-->L56-52: Formula: true InVars {} OutVars{thread3Thread1of1ForFork1_#t~nondet24#1=|v_thread3Thread1of1ForFork1_#t~nondet24#1_1|} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_#t~nondet24#1][260], [Black: 477#true, Black: 515#true, Black: 484#(not |thread1Thread1of1ForFork2_#t~short3#1|), 479#(= |#race~sort_label_is_null_5~0| 0), 286#L76-7true, 490#(= |#race~sort_label_0~0| 0), 530#true, Black: 488#true, 517#(= |#race~sort_label_4~0| 0), Black: 493#true, Black: 524#true, 526#(not |thread3Thread1of1ForFork1_#t~short19#1|), 474#(= |#race~sort_label_is_null_3~0| 0), 513#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 495#(= |#race~sort_label_2~0| 0), Black: 467#true, 169#L56-52true, Black: 504#(not |thread2Thread1of1ForFork0_#t~short11#1|), 469#(= |#race~sort_label_is_null_1~0| 0), Black: 472#true]) [2023-11-28 23:43:10,784 INFO L294 olderBase$Statistics]: this new event has 183 ancestors and is not cut-off event [2023-11-28 23:43:10,784 INFO L297 olderBase$Statistics]: existing Event has 187 ancestors and is not cut-off event [2023-11-28 23:43:10,784 INFO L297 olderBase$Statistics]: existing Event has 187 ancestors and is not cut-off event [2023-11-28 23:43:10,784 INFO L297 olderBase$Statistics]: existing Event has 195 ancestors and is not cut-off event [2023-11-28 23:43:10,785 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1237] L56-51-->L56-52: Formula: true InVars {} OutVars{thread3Thread1of1ForFork1_#t~nondet24#1=|v_thread3Thread1of1ForFork1_#t~nondet24#1_1|} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_#t~nondet24#1][260], [Black: 477#true, Black: 515#true, Black: 484#(not |thread1Thread1of1ForFork2_#t~short3#1|), 479#(= |#race~sort_label_is_null_5~0| 0), 286#L76-7true, 490#(= |#race~sort_label_0~0| 0), 530#true, Black: 488#true, 517#(= |#race~sort_label_4~0| 0), Black: 526#(not |thread3Thread1of1ForFork1_#t~short19#1|), Black: 493#true, 474#(= |#race~sort_label_is_null_3~0| 0), 513#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 495#(= |#race~sort_label_2~0| 0), Black: 467#true, 169#L56-52true, Black: 504#(not |thread2Thread1of1ForFork0_#t~short11#1|), 469#(= |#race~sort_label_is_null_1~0| 0), Black: 472#true, 524#true]) [2023-11-28 23:43:10,785 INFO L294 olderBase$Statistics]: this new event has 183 ancestors and is not cut-off event [2023-11-28 23:43:10,785 INFO L297 olderBase$Statistics]: existing Event has 186 ancestors and is not cut-off event [2023-11-28 23:43:10,785 INFO L297 olderBase$Statistics]: existing Event has 191 ancestors and is not cut-off event [2023-11-28 23:43:10,785 INFO L297 olderBase$Statistics]: existing Event has 183 ancestors and is not cut-off event [2023-11-28 23:43:10,806 INFO L124 PetriNetUnfolderBase]: 392/3470 cut-off events. [2023-11-28 23:43:10,807 INFO L125 PetriNetUnfolderBase]: For 220/224 co-relation queries the response was YES. [2023-11-28 23:43:10,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4523 conditions, 3470 events. 392/3470 cut-off events. For 220/224 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 33585 event pairs, 48 based on Foata normal form. 0/3169 useless extension candidates. Maximal degree in co-relation 4416. Up to 248 conditions per place. [2023-11-28 23:43:10,858 INFO L140 encePairwiseOnDemand]: 454/457 looper letters, 12 selfloop transitions, 2 changer transitions 0/406 dead transitions. [2023-11-28 23:43:10,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 406 transitions, 981 flow [2023-11-28 23:43:10,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:43:10,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:43:10,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1320 transitions. [2023-11-28 23:43:10,861 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.962800875273523 [2023-11-28 23:43:10,862 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1320 transitions. [2023-11-28 23:43:10,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1320 transitions. [2023-11-28 23:43:10,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:43:10,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1320 transitions. [2023-11-28 23:43:10,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 440.0) internal successors, (1320), 3 states have internal predecessors, (1320), 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) [2023-11-28 23:43:10,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:10,867 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:10,867 INFO L175 Difference]: Start difference. First operand has 394 places, 405 transitions, 949 flow. Second operand 3 states and 1320 transitions. [2023-11-28 23:43:10,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 406 transitions, 981 flow [2023-11-28 23:43:10,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 406 transitions, 975 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 23:43:10,878 INFO L231 Difference]: Finished difference. Result has 393 places, 404 transitions, 945 flow [2023-11-28 23:43:10,879 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=941, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=945, PETRI_PLACES=393, PETRI_TRANSITIONS=404} [2023-11-28 23:43:10,879 INFO L281 CegarLoopForPetriNet]: 413 programPoint places, -20 predicate places. [2023-11-28 23:43:10,879 INFO L495 AbstractCegarLoop]: Abstraction has has 393 places, 404 transitions, 945 flow [2023-11-28 23:43:10,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 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) [2023-11-28 23:43:10,880 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:43:10,880 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] [2023-11-28 23:43:10,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-28 23:43:10,880 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-28 23:43:10,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:10,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1290614130, now seen corresponding path program 1 times [2023-11-28 23:43:10,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:43:10,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527002535] [2023-11-28 23:43:10,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:43:10,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:43:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:43:11,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:43:11,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:43:11,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527002535] [2023-11-28 23:43:11,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527002535] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:43:11,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:43:11,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:43:11,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217439219] [2023-11-28 23:43:11,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:43:11,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:43:11,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:43:11,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:43:11,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:43:11,639 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 457 [2023-11-28 23:43:11,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 404 transitions, 945 flow. Second operand has 6 states, 6 states have (on average 433.8333333333333) internal successors, (2603), 6 states have internal predecessors, (2603), 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) [2023-11-28 23:43:11,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:43:11,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 457 [2023-11-28 23:43:11,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:43:12,229 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1318] thread3EXIT-->L77-7: Formula: (and (= 0 v_thread3Thread1of1ForFork1_thidvar3_4) (= 0 v_thread3Thread1of1ForFork1_thidvar1_4) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem45#1_6| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0))) v_thread3Thread1of1ForFork1_thidvar0_4) (= 0 v_thread3Thread1of1ForFork1_thidvar2_4)) InVars {ULTIMATE.start_main_#t~mem45#1=|v_ULTIMATE.start_main_#t~mem45#1_6|, thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar3=v_thread3Thread1of1ForFork1_thidvar3_4, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} OutVars{ULTIMATE.start_main_#t~mem45#1=|v_ULTIMATE.start_main_#t~mem45#1_6|, thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar3=v_thread3Thread1of1ForFork1_thidvar3_4, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} AuxVars[] AssignedVars[][379], [Black: 477#true, Black: 515#true, Black: 484#(not |thread1Thread1of1ForFork2_#t~short3#1|), 479#(= |#race~sort_label_is_null_5~0| 0), 490#(= |#race~sort_label_0~0| 0), 530#true, Black: 488#true, 517#(= |#race~sort_label_4~0| 0), Black: 526#(not |thread3Thread1of1ForFork1_#t~short19#1|), Black: 493#true, 51#L77-7true, 474#(= |#race~sort_label_is_null_3~0| 0), 513#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 495#(= |#race~sort_label_2~0| 0), Black: 467#true, Black: 504#(not |thread2Thread1of1ForFork0_#t~short11#1|), 539#(and (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) |ULTIMATE.start_main_~#t2~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t2~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ |ULTIMATE.start_main_~#t2~0#1.offset| 1)) 0) (= 0 (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t2~0#1.offset|)))), 469#(= |#race~sort_label_is_null_1~0| 0), Black: 472#true]) [2023-11-28 23:43:12,230 INFO L294 olderBase$Statistics]: this new event has 203 ancestors and is not cut-off event [2023-11-28 23:43:12,230 INFO L297 olderBase$Statistics]: existing Event has 211 ancestors and is not cut-off event [2023-11-28 23:43:12,230 INFO L297 olderBase$Statistics]: existing Event has 203 ancestors and is not cut-off event [2023-11-28 23:43:12,230 INFO L297 olderBase$Statistics]: existing Event has 203 ancestors and is not cut-off event [2023-11-28 23:43:12,239 INFO L124 PetriNetUnfolderBase]: 237/2885 cut-off events. [2023-11-28 23:43:12,239 INFO L125 PetriNetUnfolderBase]: For 10/14 co-relation queries the response was YES. [2023-11-28 23:43:12,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3477 conditions, 2885 events. 237/2885 cut-off events. For 10/14 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 25781 event pairs, 3 based on Foata normal form. 0/2642 useless extension candidates. Maximal degree in co-relation 3368. Up to 134 conditions per place. [2023-11-28 23:43:12,285 INFO L140 encePairwiseOnDemand]: 452/457 looper letters, 9 selfloop transitions, 4 changer transitions 0/403 dead transitions. [2023-11-28 23:43:12,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 403 transitions, 969 flow [2023-11-28 23:43:12,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:43:12,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 23:43:12,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2606 transitions. [2023-11-28 23:43:12,293 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.950401167031364 [2023-11-28 23:43:12,293 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2606 transitions. [2023-11-28 23:43:12,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2606 transitions. [2023-11-28 23:43:12,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:43:12,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2606 transitions. [2023-11-28 23:43:12,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 434.3333333333333) internal successors, (2606), 6 states have internal predecessors, (2606), 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) [2023-11-28 23:43:12,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 457.0) internal successors, (3199), 7 states have internal predecessors, (3199), 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) [2023-11-28 23:43:12,304 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 457.0) internal successors, (3199), 7 states have internal predecessors, (3199), 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) [2023-11-28 23:43:12,305 INFO L175 Difference]: Start difference. First operand has 393 places, 404 transitions, 945 flow. Second operand 6 states and 2606 transitions. [2023-11-28 23:43:12,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 403 transitions, 969 flow [2023-11-28 23:43:12,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 403 transitions, 965 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 23:43:12,314 INFO L231 Difference]: Finished difference. Result has 395 places, 403 transitions, 947 flow [2023-11-28 23:43:12,314 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=939, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=947, PETRI_PLACES=395, PETRI_TRANSITIONS=403} [2023-11-28 23:43:12,315 INFO L281 CegarLoopForPetriNet]: 413 programPoint places, -18 predicate places. [2023-11-28 23:43:12,315 INFO L495 AbstractCegarLoop]: Abstraction has has 395 places, 403 transitions, 947 flow [2023-11-28 23:43:12,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 433.8333333333333) internal successors, (2603), 6 states have internal predecessors, (2603), 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) [2023-11-28 23:43:12,315 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:43:12,315 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:43:12,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-28 23:43:12,316 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-28 23:43:12,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:12,316 INFO L85 PathProgramCache]: Analyzing trace with hash 2133874856, now seen corresponding path program 1 times [2023-11-28 23:43:12,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:43:12,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9769263] [2023-11-28 23:43:12,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:43:12,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:43:12,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:43:12,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:43:12,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:43:12,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9769263] [2023-11-28 23:43:12,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9769263] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:43:12,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:43:12,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:43:12,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110357483] [2023-11-28 23:43:12,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:43:12,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:43:12,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:43:12,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:43:12,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:43:13,047 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 457 [2023-11-28 23:43:13,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 403 transitions, 947 flow. Second operand has 6 states, 6 states have (on average 434.0) internal successors, (2604), 6 states have internal predecessors, (2604), 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) [2023-11-28 23:43:13,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:43:13,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 457 [2023-11-28 23:43:13,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:43:13,612 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1318] thread3EXIT-->L77-7: Formula: (and (= 0 v_thread3Thread1of1ForFork1_thidvar3_4) (= 0 v_thread3Thread1of1ForFork1_thidvar1_4) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem45#1_6| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0))) v_thread3Thread1of1ForFork1_thidvar0_4) (= 0 v_thread3Thread1of1ForFork1_thidvar2_4)) InVars {ULTIMATE.start_main_#t~mem45#1=|v_ULTIMATE.start_main_#t~mem45#1_6|, thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar3=v_thread3Thread1of1ForFork1_thidvar3_4, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} OutVars{ULTIMATE.start_main_#t~mem45#1=|v_ULTIMATE.start_main_#t~mem45#1_6|, thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar3=v_thread3Thread1of1ForFork1_thidvar3_4, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} AuxVars[] AssignedVars[][378], [Black: 477#true, Black: 515#true, Black: 484#(not |thread1Thread1of1ForFork2_#t~short3#1|), 479#(= |#race~sort_label_is_null_5~0| 0), 490#(= |#race~sort_label_0~0| 0), Black: 488#true, 517#(= |#race~sort_label_4~0| 0), Black: 526#(not |thread3Thread1of1ForFork1_#t~short19#1|), Black: 493#true, 51#L77-7true, 474#(= |#race~sort_label_is_null_3~0| 0), 513#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 495#(= |#race~sort_label_2~0| 0), Black: 467#true, 546#(and (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t3~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) (+ |ULTIMATE.start_main_~#t3~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) |ULTIMATE.start_main_~#t3~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t3~0#1.offset|)) 0)), Black: 504#(not |thread2Thread1of1ForFork0_#t~short11#1|), 539#(and (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) |ULTIMATE.start_main_~#t2~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t2~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ |ULTIMATE.start_main_~#t2~0#1.offset| 1)) 0) (= 0 (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t2~0#1.offset|)))), 469#(= |#race~sort_label_is_null_1~0| 0), Black: 472#true]) [2023-11-28 23:43:13,612 INFO L294 olderBase$Statistics]: this new event has 203 ancestors and is not cut-off event [2023-11-28 23:43:13,612 INFO L297 olderBase$Statistics]: existing Event has 203 ancestors and is not cut-off event [2023-11-28 23:43:13,612 INFO L297 olderBase$Statistics]: existing Event has 203 ancestors and is not cut-off event [2023-11-28 23:43:13,612 INFO L297 olderBase$Statistics]: existing Event has 211 ancestors and is not cut-off event [2023-11-28 23:43:13,621 INFO L124 PetriNetUnfolderBase]: 237/2881 cut-off events. [2023-11-28 23:43:13,621 INFO L125 PetriNetUnfolderBase]: For 6/10 co-relation queries the response was YES. [2023-11-28 23:43:13,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3407 conditions, 2881 events. 237/2881 cut-off events. For 6/10 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 25716 event pairs, 3 based on Foata normal form. 0/2642 useless extension candidates. Maximal degree in co-relation 3298. Up to 134 conditions per place. [2023-11-28 23:43:13,678 INFO L140 encePairwiseOnDemand]: 452/457 looper letters, 9 selfloop transitions, 4 changer transitions 0/402 dead transitions. [2023-11-28 23:43:13,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 402 transitions, 971 flow [2023-11-28 23:43:13,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:43:13,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 23:43:13,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2606 transitions. [2023-11-28 23:43:13,685 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.950401167031364 [2023-11-28 23:43:13,685 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2606 transitions. [2023-11-28 23:43:13,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2606 transitions. [2023-11-28 23:43:13,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:43:13,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2606 transitions. [2023-11-28 23:43:13,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 434.3333333333333) internal successors, (2606), 6 states have internal predecessors, (2606), 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) [2023-11-28 23:43:13,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 457.0) internal successors, (3199), 7 states have internal predecessors, (3199), 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) [2023-11-28 23:43:13,697 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 457.0) internal successors, (3199), 7 states have internal predecessors, (3199), 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) [2023-11-28 23:43:13,698 INFO L175 Difference]: Start difference. First operand has 395 places, 403 transitions, 947 flow. Second operand 6 states and 2606 transitions. [2023-11-28 23:43:13,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 402 transitions, 971 flow [2023-11-28 23:43:13,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 402 transitions, 964 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-28 23:43:13,708 INFO L231 Difference]: Finished difference. Result has 395 places, 402 transitions, 946 flow [2023-11-28 23:43:13,708 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=938, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=946, PETRI_PLACES=395, PETRI_TRANSITIONS=402} [2023-11-28 23:43:13,709 INFO L281 CegarLoopForPetriNet]: 413 programPoint places, -18 predicate places. [2023-11-28 23:43:13,709 INFO L495 AbstractCegarLoop]: Abstraction has has 395 places, 402 transitions, 946 flow [2023-11-28 23:43:13,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 434.0) internal successors, (2604), 6 states have internal predecessors, (2604), 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) [2023-11-28 23:43:13,710 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:43:13,710 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:43:13,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-28 23:43:13,710 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-28 23:43:13,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:13,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1167322330, now seen corresponding path program 1 times [2023-11-28 23:43:13,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:43:13,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206400937] [2023-11-28 23:43:13,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:43:13,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:43:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:43:13,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:43:13,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:43:13,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206400937] [2023-11-28 23:43:13,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206400937] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:43:13,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:43:13,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:43:13,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449371703] [2023-11-28 23:43:13,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:43:13,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:43:13,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:43:13,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:43:13,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:43:13,788 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 438 out of 457 [2023-11-28 23:43:13,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 402 transitions, 946 flow. Second operand has 3 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 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) [2023-11-28 23:43:13,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:43:13,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 438 of 457 [2023-11-28 23:43:13,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:43:14,609 INFO L124 PetriNetUnfolderBase]: 388/4815 cut-off events. [2023-11-28 23:43:14,610 INFO L125 PetriNetUnfolderBase]: For 13/17 co-relation queries the response was YES. [2023-11-28 23:43:14,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5690 conditions, 4815 events. 388/4815 cut-off events. For 13/17 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 50923 event pairs, 11 based on Foata normal form. 0/4428 useless extension candidates. Maximal degree in co-relation 5508. Up to 210 conditions per place. [2023-11-28 23:43:14,686 INFO L140 encePairwiseOnDemand]: 455/457 looper letters, 8 selfloop transitions, 1 changer transitions 0/401 dead transitions. [2023-11-28 23:43:14,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 401 transitions, 962 flow [2023-11-28 23:43:14,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:43:14,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:43:14,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1324 transitions. [2023-11-28 23:43:14,688 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9657184536834428 [2023-11-28 23:43:14,689 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1324 transitions. [2023-11-28 23:43:14,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1324 transitions. [2023-11-28 23:43:14,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:43:14,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1324 transitions. [2023-11-28 23:43:14,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 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) [2023-11-28 23:43:14,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:14,692 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:14,692 INFO L175 Difference]: Start difference. First operand has 395 places, 402 transitions, 946 flow. Second operand 3 states and 1324 transitions. [2023-11-28 23:43:14,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 401 transitions, 962 flow [2023-11-28 23:43:14,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 401 transitions, 955 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-28 23:43:14,699 INFO L231 Difference]: Finished difference. Result has 392 places, 401 transitions, 939 flow [2023-11-28 23:43:14,699 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=937, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=939, PETRI_PLACES=392, PETRI_TRANSITIONS=401} [2023-11-28 23:43:14,700 INFO L281 CegarLoopForPetriNet]: 413 programPoint places, -21 predicate places. [2023-11-28 23:43:14,700 INFO L495 AbstractCegarLoop]: Abstraction has has 392 places, 401 transitions, 939 flow [2023-11-28 23:43:14,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 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) [2023-11-28 23:43:14,700 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:43:14,700 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:43:14,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-28 23:43:14,701 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-28 23:43:14,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:14,701 INFO L85 PathProgramCache]: Analyzing trace with hash -122572563, now seen corresponding path program 1 times [2023-11-28 23:43:14,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:43:14,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601715793] [2023-11-28 23:43:14,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:43:14,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:43:14,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:43:14,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:43:14,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:43:14,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601715793] [2023-11-28 23:43:14,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601715793] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:43:14,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:43:14,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:43:14,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974839174] [2023-11-28 23:43:14,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:43:14,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:43:14,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:43:14,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:43:14,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:43:14,784 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 457 [2023-11-28 23:43:14,785 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 401 transitions, 939 flow. Second operand has 3 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 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) [2023-11-28 23:43:14,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:43:14,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 457 [2023-11-28 23:43:14,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:43:15,655 INFO L124 PetriNetUnfolderBase]: 446/5531 cut-off events. [2023-11-28 23:43:15,655 INFO L125 PetriNetUnfolderBase]: For 21/31 co-relation queries the response was YES. [2023-11-28 23:43:15,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6579 conditions, 5531 events. 446/5531 cut-off events. For 21/31 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 60660 event pairs, 25 based on Foata normal form. 0/5100 useless extension candidates. Maximal degree in co-relation 6447. Up to 193 conditions per place. [2023-11-28 23:43:15,756 INFO L140 encePairwiseOnDemand]: 454/457 looper letters, 10 selfloop transitions, 1 changer transitions 0/399 dead transitions. [2023-11-28 23:43:15,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 399 transitions, 957 flow [2023-11-28 23:43:15,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:43:15,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:43:15,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1318 transitions. [2023-11-28 23:43:15,759 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9613420860685631 [2023-11-28 23:43:15,759 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1318 transitions. [2023-11-28 23:43:15,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1318 transitions. [2023-11-28 23:43:15,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:43:15,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1318 transitions. [2023-11-28 23:43:15,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 439.3333333333333) internal successors, (1318), 3 states have internal predecessors, (1318), 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) [2023-11-28 23:43:15,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:15,763 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:15,763 INFO L175 Difference]: Start difference. First operand has 392 places, 401 transitions, 939 flow. Second operand 3 states and 1318 transitions. [2023-11-28 23:43:15,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 399 transitions, 957 flow [2023-11-28 23:43:15,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 399 transitions, 956 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-28 23:43:15,771 INFO L231 Difference]: Finished difference. Result has 391 places, 399 transitions, 936 flow [2023-11-28 23:43:15,771 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=934, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=936, PETRI_PLACES=391, PETRI_TRANSITIONS=399} [2023-11-28 23:43:15,772 INFO L281 CegarLoopForPetriNet]: 413 programPoint places, -22 predicate places. [2023-11-28 23:43:15,772 INFO L495 AbstractCegarLoop]: Abstraction has has 391 places, 399 transitions, 936 flow [2023-11-28 23:43:15,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 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) [2023-11-28 23:43:15,772 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:43:15,772 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:43:15,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-28 23:43:15,772 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-28 23:43:15,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:43:15,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1420927654, now seen corresponding path program 1 times [2023-11-28 23:43:15,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:43:15,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918810969] [2023-11-28 23:43:15,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:43:15,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:43:15,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:43:15,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:43:15,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:43:15,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918810969] [2023-11-28 23:43:15,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918810969] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:43:15,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:43:15,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:43:15,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742549625] [2023-11-28 23:43:15,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:43:15,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:43:15,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:43:15,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:43:15,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:43:15,855 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 457 [2023-11-28 23:43:15,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 399 transitions, 936 flow. Second operand has 3 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 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) [2023-11-28 23:43:15,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:43:15,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 457 [2023-11-28 23:43:15,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:43:16,419 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1242] L56-52-->L56-53: Formula: (= |v_#race~result_8~0_1| |v_thread3Thread1of1ForFork1_#t~nondet24#1_3|) InVars {thread3Thread1of1ForFork1_#t~nondet24#1=|v_thread3Thread1of1ForFork1_#t~nondet24#1_3|} OutVars{#race~result_8~0=|v_#race~result_8~0_1|, thread3Thread1of1ForFork1_#t~nondet24#1=|v_thread3Thread1of1ForFork1_#t~nondet24#1_3|} AuxVars[] AssignedVars[#race~result_8~0][270], [Black: 477#true, Black: 515#true, Black: 484#(not |thread1Thread1of1ForFork2_#t~short3#1|), 479#(= |#race~sort_label_is_null_5~0| 0), 490#(= |#race~sort_label_0~0| 0), 286#L76-7true, Black: 488#true, 246#L56-53true, 517#(= |#race~sort_label_4~0| 0), Black: 526#(not |thread3Thread1of1ForFork1_#t~short19#1|), Black: 493#true, 474#(= |#race~sort_label_is_null_3~0| 0), 556#true, 513#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 495#(= |#race~sort_label_2~0| 0), Black: 467#true, 552#true, Black: 504#(not |thread2Thread1of1ForFork0_#t~short11#1|), 539#(and (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) |ULTIMATE.start_main_~#t2~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t2~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ |ULTIMATE.start_main_~#t2~0#1.offset| 1)) 0) (= 0 (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t2~0#1.offset|)))), 469#(= |#race~sort_label_is_null_1~0| 0), Black: 472#true]) [2023-11-28 23:43:16,419 INFO L294 olderBase$Statistics]: this new event has 187 ancestors and is cut-off event [2023-11-28 23:43:16,420 INFO L297 olderBase$Statistics]: existing Event has 184 ancestors and is cut-off event [2023-11-28 23:43:16,420 INFO L297 olderBase$Statistics]: existing Event has 192 ancestors and is cut-off event [2023-11-28 23:43:16,420 INFO L297 olderBase$Statistics]: existing Event has 184 ancestors and is cut-off event [2023-11-28 23:43:16,430 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1242] L56-52-->L56-53: Formula: (= |v_#race~result_8~0_1| |v_thread3Thread1of1ForFork1_#t~nondet24#1_3|) InVars {thread3Thread1of1ForFork1_#t~nondet24#1=|v_thread3Thread1of1ForFork1_#t~nondet24#1_3|} OutVars{#race~result_8~0=|v_#race~result_8~0_1|, thread3Thread1of1ForFork1_#t~nondet24#1=|v_thread3Thread1of1ForFork1_#t~nondet24#1_3|} AuxVars[] AssignedVars[#race~result_8~0][270], [Black: 477#true, Black: 515#true, Black: 484#(not |thread1Thread1of1ForFork2_#t~short3#1|), 479#(= |#race~sort_label_is_null_5~0| 0), 490#(= |#race~sort_label_0~0| 0), 286#L76-7true, Black: 488#true, 246#L56-53true, 517#(= |#race~sort_label_4~0| 0), Black: 524#true, Black: 493#true, 556#true, 474#(= |#race~sort_label_is_null_3~0| 0), 513#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 495#(= |#race~sort_label_2~0| 0), Black: 467#true, 552#true, Black: 504#(not |thread2Thread1of1ForFork0_#t~short11#1|), 539#(and (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) |ULTIMATE.start_main_~#t2~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t2~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ |ULTIMATE.start_main_~#t2~0#1.offset| 1)) 0) (= 0 (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t2~0#1.offset|)))), 469#(= |#race~sort_label_is_null_1~0| 0), Black: 472#true]) [2023-11-28 23:43:16,430 INFO L294 olderBase$Statistics]: this new event has 184 ancestors and is not cut-off event [2023-11-28 23:43:16,430 INFO L297 olderBase$Statistics]: existing Event has 188 ancestors and is not cut-off event [2023-11-28 23:43:16,430 INFO L297 olderBase$Statistics]: existing Event has 196 ancestors and is not cut-off event [2023-11-28 23:43:16,430 INFO L297 olderBase$Statistics]: existing Event has 188 ancestors and is not cut-off event [2023-11-28 23:43:16,445 INFO L124 PetriNetUnfolderBase]: 286/3149 cut-off events. [2023-11-28 23:43:16,445 INFO L125 PetriNetUnfolderBase]: For 50/54 co-relation queries the response was YES. [2023-11-28 23:43:16,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3838 conditions, 3149 events. 286/3149 cut-off events. For 50/54 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 29092 event pairs, 33 based on Foata normal form. 5/2897 useless extension candidates. Maximal degree in co-relation 3761. Up to 150 conditions per place. [2023-11-28 23:43:16,486 INFO L140 encePairwiseOnDemand]: 454/457 looper letters, 0 selfloop transitions, 0 changer transitions 397/397 dead transitions. [2023-11-28 23:43:16,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 397 transitions, 952 flow [2023-11-28 23:43:16,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:43:16,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:43:16,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1317 transitions. [2023-11-28 23:43:16,489 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9606126914660832 [2023-11-28 23:43:16,489 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1317 transitions. [2023-11-28 23:43:16,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1317 transitions. [2023-11-28 23:43:16,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:43:16,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1317 transitions. [2023-11-28 23:43:16,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 439.0) internal successors, (1317), 3 states have internal predecessors, (1317), 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) [2023-11-28 23:43:16,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:16,493 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 457.0) internal successors, (1828), 4 states have internal predecessors, (1828), 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) [2023-11-28 23:43:16,493 INFO L175 Difference]: Start difference. First operand has 391 places, 399 transitions, 936 flow. Second operand 3 states and 1317 transitions. [2023-11-28 23:43:16,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 397 transitions, 952 flow [2023-11-28 23:43:16,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 397 transitions, 951 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-28 23:43:16,498 INFO L231 Difference]: Finished difference. Result has 390 places, 0 transitions, 0 flow [2023-11-28 23:43:16,498 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=457, PETRI_DIFFERENCE_MINUEND_FLOW=931, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=390, PETRI_TRANSITIONS=0} [2023-11-28 23:43:16,499 INFO L281 CegarLoopForPetriNet]: 413 programPoint places, -23 predicate places. [2023-11-28 23:43:16,499 INFO L495 AbstractCegarLoop]: Abstraction has has 390 places, 0 transitions, 0 flow [2023-11-28 23:43:16,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 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) [2023-11-28 23:43:16,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (82 of 83 remaining) [2023-11-28 23:43:16,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (81 of 83 remaining) [2023-11-28 23:43:16,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (80 of 83 remaining) [2023-11-28 23:43:16,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (79 of 83 remaining) [2023-11-28 23:43:16,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (78 of 83 remaining) [2023-11-28 23:43:16,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (77 of 83 remaining) [2023-11-28 23:43:16,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (76 of 83 remaining) [2023-11-28 23:43:16,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (75 of 83 remaining) [2023-11-28 23:43:16,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (74 of 83 remaining) [2023-11-28 23:43:16,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (73 of 83 remaining) [2023-11-28 23:43:16,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (72 of 83 remaining) [2023-11-28 23:43:16,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (71 of 83 remaining) [2023-11-28 23:43:16,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (70 of 83 remaining) [2023-11-28 23:43:16,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (69 of 83 remaining) [2023-11-28 23:43:16,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (68 of 83 remaining) [2023-11-28 23:43:16,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (67 of 83 remaining) [2023-11-28 23:43:16,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (66 of 83 remaining) [2023-11-28 23:43:16,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (65 of 83 remaining) [2023-11-28 23:43:16,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (64 of 83 remaining) [2023-11-28 23:43:16,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (63 of 83 remaining) [2023-11-28 23:43:16,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (62 of 83 remaining) [2023-11-28 23:43:16,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (61 of 83 remaining) [2023-11-28 23:43:16,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (60 of 83 remaining) [2023-11-28 23:43:16,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (59 of 83 remaining) [2023-11-28 23:43:16,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (58 of 83 remaining) [2023-11-28 23:43:16,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (57 of 83 remaining) [2023-11-28 23:43:16,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (56 of 83 remaining) [2023-11-28 23:43:16,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (55 of 83 remaining) [2023-11-28 23:43:16,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (54 of 83 remaining) [2023-11-28 23:43:16,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (53 of 83 remaining) [2023-11-28 23:43:16,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (52 of 83 remaining) [2023-11-28 23:43:16,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (51 of 83 remaining) [2023-11-28 23:43:16,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (50 of 83 remaining) [2023-11-28 23:43:16,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (49 of 83 remaining) [2023-11-28 23:43:16,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (48 of 83 remaining) [2023-11-28 23:43:16,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (47 of 83 remaining) [2023-11-28 23:43:16,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (46 of 83 remaining) [2023-11-28 23:43:16,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (45 of 83 remaining) [2023-11-28 23:43:16,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (44 of 83 remaining) [2023-11-28 23:43:16,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (43 of 83 remaining) [2023-11-28 23:43:16,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (42 of 83 remaining) [2023-11-28 23:43:16,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (41 of 83 remaining) [2023-11-28 23:43:16,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (40 of 83 remaining) [2023-11-28 23:43:16,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (39 of 83 remaining) [2023-11-28 23:43:16,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (38 of 83 remaining) [2023-11-28 23:43:16,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (37 of 83 remaining) [2023-11-28 23:43:16,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (36 of 83 remaining) [2023-11-28 23:43:16,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 83 remaining) [2023-11-28 23:43:16,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 83 remaining) [2023-11-28 23:43:16,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 83 remaining) [2023-11-28 23:43:16,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (32 of 83 remaining) [2023-11-28 23:43:16,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (31 of 83 remaining) [2023-11-28 23:43:16,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (30 of 83 remaining) [2023-11-28 23:43:16,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (29 of 83 remaining) [2023-11-28 23:43:16,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (28 of 83 remaining) [2023-11-28 23:43:16,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (27 of 83 remaining) [2023-11-28 23:43:16,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (26 of 83 remaining) [2023-11-28 23:43:16,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (25 of 83 remaining) [2023-11-28 23:43:16,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (24 of 83 remaining) [2023-11-28 23:43:16,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (23 of 83 remaining) [2023-11-28 23:43:16,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (22 of 83 remaining) [2023-11-28 23:43:16,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (21 of 83 remaining) [2023-11-28 23:43:16,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (20 of 83 remaining) [2023-11-28 23:43:16,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (19 of 83 remaining) [2023-11-28 23:43:16,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (18 of 83 remaining) [2023-11-28 23:43:16,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (17 of 83 remaining) [2023-11-28 23:43:16,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (16 of 83 remaining) [2023-11-28 23:43:16,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (15 of 83 remaining) [2023-11-28 23:43:16,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (14 of 83 remaining) [2023-11-28 23:43:16,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (13 of 83 remaining) [2023-11-28 23:43:16,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (12 of 83 remaining) [2023-11-28 23:43:16,512 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (11 of 83 remaining) [2023-11-28 23:43:16,512 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (10 of 83 remaining) [2023-11-28 23:43:16,512 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (9 of 83 remaining) [2023-11-28 23:43:16,512 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (8 of 83 remaining) [2023-11-28 23:43:16,512 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (7 of 83 remaining) [2023-11-28 23:43:16,512 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (6 of 83 remaining) [2023-11-28 23:43:16,513 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (5 of 83 remaining) [2023-11-28 23:43:16,513 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (4 of 83 remaining) [2023-11-28 23:43:16,513 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (3 of 83 remaining) [2023-11-28 23:43:16,513 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (2 of 83 remaining) [2023-11-28 23:43:16,513 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (1 of 83 remaining) [2023-11-28 23:43:16,513 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (0 of 83 remaining) [2023-11-28 23:43:16,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-28 23:43:16,514 INFO L445 BasicCegarLoop]: Path program 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] [2023-11-28 23:43:16,520 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-28 23:43:16,520 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 23:43:16,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:43:16 BasicIcfg [2023-11-28 23:43:16,526 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 23:43:16,526 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 23:43:16,526 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 23:43:16,526 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 23:43:16,527 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:42:57" (3/4) ... [2023-11-28 23:43:16,528 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-28 23:43:16,531 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-28 23:43:16,531 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-28 23:43:16,531 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-11-28 23:43:16,536 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-28 23:43:16,537 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-28 23:43:16,537 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-28 23:43:16,538 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-28 23:43:16,634 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4ded-ef37-42d8-a4c9-920f0d4e90fb/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-28 23:43:16,635 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4ded-ef37-42d8-a4c9-920f0d4e90fb/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-28 23:43:16,635 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 23:43:16,636 INFO L158 Benchmark]: Toolchain (without parser) took 20273.66ms. Allocated memory was 188.7MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 158.1MB in the beginning and 1.1GB in the end (delta: -920.0MB). Peak memory consumption was 269.1MB. Max. memory is 16.1GB. [2023-11-28 23:43:16,636 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 125.8MB. Free memory is still 98.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:43:16,636 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.82ms. Allocated memory is still 188.7MB. Free memory was 157.9MB in the beginning and 148.6MB in the end (delta: 9.3MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2023-11-28 23:43:16,637 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.50ms. Allocated memory is still 188.7MB. Free memory was 148.6MB in the beginning and 146.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 23:43:16,637 INFO L158 Benchmark]: Boogie Preprocessor took 47.70ms. Allocated memory is still 188.7MB. Free memory was 146.2MB in the beginning and 144.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 23:43:16,638 INFO L158 Benchmark]: RCFGBuilder took 747.94ms. Allocated memory is still 188.7MB. Free memory was 144.1MB in the beginning and 131.4MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-28 23:43:16,638 INFO L158 Benchmark]: TraceAbstraction took 19019.67ms. Allocated memory was 188.7MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 130.2MB in the beginning and 1.1GB in the end (delta: -954.1MB). Peak memory consumption was 868.2MB. Max. memory is 16.1GB. [2023-11-28 23:43:16,639 INFO L158 Benchmark]: Witness Printer took 109.05ms. Allocated memory is still 1.4GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-28 23:43:16,640 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 125.8MB. Free memory is still 98.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.82ms. Allocated memory is still 188.7MB. Free memory was 157.9MB in the beginning and 148.6MB in the end (delta: 9.3MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.50ms. Allocated memory is still 188.7MB. Free memory was 148.6MB in the beginning and 146.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.70ms. Allocated memory is still 188.7MB. Free memory was 146.2MB in the beginning and 144.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 747.94ms. Allocated memory is still 188.7MB. Free memory was 144.1MB in the beginning and 131.4MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 19019.67ms. Allocated memory was 188.7MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 130.2MB in the beginning and 1.1GB in the end (delta: -954.1MB). Peak memory consumption was 868.2MB. Max. memory is 16.1GB. * Witness Printer took 109.05ms. Allocated memory is still 1.4GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: 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: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: 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 7 procedures, 701 locations, 83 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: 18.8s, OverallIterations: 24, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 15.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 740 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 284 mSDsluCounter, 176 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 221 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1035 IncrementalHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 221 mSolverCounterUnsat, 176 mSDtfsCounter, 1035 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=949occurred in iteration=18, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 2258 NumberOfCodeBlocks, 2258 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 2234 ConstructedInterpolants, 0 QuantifiedInterpolants, 2516 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 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 47 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-28 23:43:16,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dce4ded-ef37-42d8-a4c9-920f0d4e90fb/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