./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a 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_c150581a-ed56-4396-ab6b-81d7af219dd0/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c150581a-ed56-4396-ab6b-81d7af219dd0/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c150581a-ed56-4396-ab6b-81d7af219dd0/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c150581a-ed56-4396-ab6b-81d7af219dd0/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c150581a-ed56-4396-ab6b-81d7af219dd0/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c150581a-ed56-4396-ab6b-81d7af219dd0/bin/uautomizer-verify-4GaUIPS5ZU --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 af00d5f4cc6a18cb9fd8a5151467217fe3ddb5ee0fa30b2cfbd9dd374105ee15 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:59:41,637 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:59:41,733 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c150581a-ed56-4396-ab6b-81d7af219dd0/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 21:59:41,741 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:59:41,742 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:59:41,785 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:59:41,786 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:59:41,787 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:59:41,788 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:59:41,790 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:59:41,792 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:59:41,793 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:59:41,793 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:59:41,794 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:59:41,794 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:59:41,795 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:59:41,795 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:59:41,796 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:59:41,796 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:59:41,797 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:59:41,797 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:59:41,798 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:59:41,798 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 21:59:41,799 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:59:41,799 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:59:41,800 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:59:41,800 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:59:41,800 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:59:41,805 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:59:41,805 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:59:41,806 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:59:41,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:41,807 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:59:41,807 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:59:41,808 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:59:41,809 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:59:41,810 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:59:41,810 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:59:41,810 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:59:41,811 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:59:41,811 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:59:41,812 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_c150581a-ed56-4396-ab6b-81d7af219dd0/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c150581a-ed56-4396-ab6b-81d7af219dd0/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af00d5f4cc6a18cb9fd8a5151467217fe3ddb5ee0fa30b2cfbd9dd374105ee15 [2024-10-31 21:59:42,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:59:42,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:59:42,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:59:42,153 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:59:42,154 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:59:42,155 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c150581a-ed56-4396-ab6b-81d7af219dd0/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i Unable to find full path for "g++" [2024-10-31 21:59:44,212 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:59:44,480 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:59:44,481 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c150581a-ed56-4396-ab6b-81d7af219dd0/sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i [2024-10-31 21:59:44,504 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c150581a-ed56-4396-ab6b-81d7af219dd0/bin/uautomizer-verify-4GaUIPS5ZU/data/e89862600/749bca6ff31e44738a2071060415906c/FLAG3bb52b6c6 [2024-10-31 21:59:44,523 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c150581a-ed56-4396-ab6b-81d7af219dd0/bin/uautomizer-verify-4GaUIPS5ZU/data/e89862600/749bca6ff31e44738a2071060415906c [2024-10-31 21:59:44,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:59:44,527 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:59:44,529 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:44,529 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:59:44,536 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:59:44,537 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:44" (1/1) ... [2024-10-31 21:59:44,541 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f2c3d0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:44, skipping insertion in model container [2024-10-31 21:59:44,541 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:44" (1/1) ... [2024-10-31 21:59:44,620 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:59:45,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:45,101 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:59:45,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:45,242 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:59:45,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45 WrapperNode [2024-10-31 21:59:45,244 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:45,245 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:45,245 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:59:45,246 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:59:45,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,279 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,318 INFO L138 Inliner]: procedures = 172, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2024-10-31 21:59:45,318 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:45,319 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:59:45,320 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:59:45,320 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:59:45,331 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,336 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,337 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,352 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,359 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,361 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,366 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,369 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:59:45,370 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:59:45,370 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:59:45,370 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:59:45,371 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:45,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c150581a-ed56-4396-ab6b-81d7af219dd0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:45,415 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c150581a-ed56-4396-ab6b-81d7af219dd0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:45,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c150581a-ed56-4396-ab6b-81d7af219dd0/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:59:45,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 21:59:45,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 21:59:45,456 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 21:59:45,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:59:45,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 21:59:45,456 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-31 21:59:45,456 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-31 21:59:45,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 21:59:45,457 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2024-10-31 21:59:45,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 21:59:45,457 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 21:59:45,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:59:45,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:59:45,459 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 21:59:45,615 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:59:45,618 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:59:45,910 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 21:59:45,911 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:59:45,977 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:59:45,977 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-10-31 21:59:45,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:45 BoogieIcfgContainer [2024-10-31 21:59:45,978 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:59:45,980 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:59:45,980 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:59:45,984 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:59:45,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:59:44" (1/3) ... [2024-10-31 21:59:45,985 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@388e7c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:45, skipping insertion in model container [2024-10-31 21:59:45,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (2/3) ... [2024-10-31 21:59:45,986 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@388e7c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:45, skipping insertion in model container [2024-10-31 21:59:45,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:45" (3/3) ... [2024-10-31 21:59:45,987 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_41-trylock_racefree.i [2024-10-31 21:59:46,003 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:59:46,003 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-10-31 21:59:46,003 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 21:59:46,061 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 21:59:46,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 144 transitions, 295 flow [2024-10-31 21:59:46,195 INFO L124 PetriNetUnfolderBase]: 23/207 cut-off events. [2024-10-31 21:59:46,196 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 21:59:46,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 207 events. 23/207 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 659 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 113. Up to 6 conditions per place. [2024-10-31 21:59:46,204 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 144 transitions, 295 flow [2024-10-31 21:59:46,209 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 144 transitions, 295 flow [2024-10-31 21:59:46,220 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:59:46,227 INFO L333 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, 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;@1baa8453, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:59:46,227 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-10-31 21:59:46,249 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 21:59:46,249 INFO L124 PetriNetUnfolderBase]: 4/49 cut-off events. [2024-10-31 21:59:46,249 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:59:46,249 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:46,250 INFO L204 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] [2024-10-31 21:59:46,251 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-10-31 21:59:46,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:46,257 INFO L85 PathProgramCache]: Analyzing trace with hash -339722752, now seen corresponding path program 1 times [2024-10-31 21:59:46,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:46,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646981155] [2024-10-31 21:59:46,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:46,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:46,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:46,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:46,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:46,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646981155] [2024-10-31 21:59:46,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646981155] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:46,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:46,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:46,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312877818] [2024-10-31 21:59:46,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:46,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 21:59:46,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:46,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 21:59:46,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 21:59:46,612 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 144 [2024-10-31 21:59:46,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 144 transitions, 295 flow. Second operand has 2 states, 2 states have (on average 119.0) internal successors, (238), 2 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:46,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:46,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 144 [2024-10-31 21:59:46,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:46,768 INFO L124 PetriNetUnfolderBase]: 27/367 cut-off events. [2024-10-31 21:59:46,768 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 21:59:46,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 437 conditions, 367 events. 27/367 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1446 event pairs, 24 based on Foata normal form. 54/383 useless extension candidates. Maximal degree in co-relation 340. Up to 65 conditions per place. [2024-10-31 21:59:46,772 INFO L140 encePairwiseOnDemand]: 131/144 looper letters, 12 selfloop transitions, 0 changer transitions 0/129 dead transitions. [2024-10-31 21:59:46,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 129 transitions, 289 flow [2024-10-31 21:59:46,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 21:59:46,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-31 21:59:46,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 261 transitions. [2024-10-31 21:59:46,785 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.90625 [2024-10-31 21:59:46,787 INFO L175 Difference]: Start difference. First operand has 132 places, 144 transitions, 295 flow. Second operand 2 states and 261 transitions. [2024-10-31 21:59:46,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 129 transitions, 289 flow [2024-10-31 21:59:46,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 129 transitions, 289 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 21:59:46,795 INFO L231 Difference]: Finished difference. Result has 131 places, 129 transitions, 265 flow [2024-10-31 21:59:46,797 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=265, PETRI_PLACES=131, PETRI_TRANSITIONS=129} [2024-10-31 21:59:46,801 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, -1 predicate places. [2024-10-31 21:59:46,801 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 129 transitions, 265 flow [2024-10-31 21:59:46,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 119.0) internal successors, (238), 2 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:46,802 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:46,802 INFO L204 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] [2024-10-31 21:59:46,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:59:46,802 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-10-31 21:59:46,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:46,803 INFO L85 PathProgramCache]: Analyzing trace with hash -104795701, now seen corresponding path program 1 times [2024-10-31 21:59:46,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:46,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425380431] [2024-10-31 21:59:46,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:46,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:47,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:47,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:47,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425380431] [2024-10-31 21:59:47,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425380431] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:47,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:47,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:47,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976564296] [2024-10-31 21:59:47,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:47,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:47,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:47,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:47,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:47,055 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 144 [2024-10-31 21:59:47,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 129 transitions, 265 flow. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:47,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:47,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 144 [2024-10-31 21:59:47,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:47,254 INFO L124 PetriNetUnfolderBase]: 55/546 cut-off events. [2024-10-31 21:59:47,254 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 21:59:47,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 668 conditions, 546 events. 55/546 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2704 event pairs, 0 based on Foata normal form. 1/490 useless extension candidates. Maximal degree in co-relation 664. Up to 108 conditions per place. [2024-10-31 21:59:47,262 INFO L140 encePairwiseOnDemand]: 141/144 looper letters, 22 selfloop transitions, 2 changer transitions 0/135 dead transitions. [2024-10-31 21:59:47,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 135 transitions, 325 flow [2024-10-31 21:59:47,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:47,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:59:47,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2024-10-31 21:59:47,271 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8356481481481481 [2024-10-31 21:59:47,271 INFO L175 Difference]: Start difference. First operand has 131 places, 129 transitions, 265 flow. Second operand 3 states and 361 transitions. [2024-10-31 21:59:47,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 135 transitions, 325 flow [2024-10-31 21:59:47,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 135 transitions, 325 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 21:59:47,281 INFO L231 Difference]: Finished difference. Result has 134 places, 129 transitions, 273 flow [2024-10-31 21:59:47,281 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=273, PETRI_PLACES=134, PETRI_TRANSITIONS=129} [2024-10-31 21:59:47,282 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 2 predicate places. [2024-10-31 21:59:47,283 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 129 transitions, 273 flow [2024-10-31 21:59:47,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:47,284 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:47,284 INFO L204 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] [2024-10-31 21:59:47,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:59:47,285 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-10-31 21:59:47,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:47,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1760864711, now seen corresponding path program 1 times [2024-10-31 21:59:47,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:47,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910642349] [2024-10-31 21:59:47,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:47,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:47,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:48,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:48,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:48,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910642349] [2024-10-31 21:59:48,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910642349] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:48,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:48,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:59:48,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883172293] [2024-10-31 21:59:48,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:48,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:59:48,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:48,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:59:48,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:59:48,281 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 144 [2024-10-31 21:59:48,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 129 transitions, 273 flow. Second operand has 6 states, 6 states have (on average 101.5) internal successors, (609), 6 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:48,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:48,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 144 [2024-10-31 21:59:48,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:48,532 INFO L124 PetriNetUnfolderBase]: 115/660 cut-off events. [2024-10-31 21:59:48,533 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-10-31 21:59:48,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 948 conditions, 660 events. 115/660 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3757 event pairs, 12 based on Foata normal form. 0/603 useless extension candidates. Maximal degree in co-relation 942. Up to 181 conditions per place. [2024-10-31 21:59:48,539 INFO L140 encePairwiseOnDemand]: 138/144 looper letters, 48 selfloop transitions, 5 changer transitions 0/152 dead transitions. [2024-10-31 21:59:48,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 152 transitions, 425 flow [2024-10-31 21:59:48,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:59:48,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 21:59:48,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 654 transitions. [2024-10-31 21:59:48,542 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7569444444444444 [2024-10-31 21:59:48,543 INFO L175 Difference]: Start difference. First operand has 134 places, 129 transitions, 273 flow. Second operand 6 states and 654 transitions. [2024-10-31 21:59:48,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 152 transitions, 425 flow [2024-10-31 21:59:48,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 152 transitions, 421 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:59:48,547 INFO L231 Difference]: Finished difference. Result has 136 places, 128 transitions, 277 flow [2024-10-31 21:59:48,547 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=277, PETRI_PLACES=136, PETRI_TRANSITIONS=128} [2024-10-31 21:59:48,548 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 4 predicate places. [2024-10-31 21:59:48,548 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 128 transitions, 277 flow [2024-10-31 21:59:48,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.5) internal successors, (609), 6 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:48,549 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:48,549 INFO L204 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] [2024-10-31 21:59:48,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 21:59:48,550 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-10-31 21:59:48,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:48,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1856796326, now seen corresponding path program 1 times [2024-10-31 21:59:48,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:48,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449047250] [2024-10-31 21:59:48,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:48,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:48,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:48,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:48,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:48,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449047250] [2024-10-31 21:59:48,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449047250] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:48,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:48,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:48,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341121898] [2024-10-31 21:59:48,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:48,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:48,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:48,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:48,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:48,642 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 144 [2024-10-31 21:59:48,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 128 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:48,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:48,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 144 [2024-10-31 21:59:48,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:48,833 INFO L124 PetriNetUnfolderBase]: 92/791 cut-off events. [2024-10-31 21:59:48,833 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-31 21:59:48,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1028 conditions, 791 events. 92/791 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4695 event pairs, 30 based on Foata normal form. 0/721 useless extension candidates. Maximal degree in co-relation 1022. Up to 125 conditions per place. [2024-10-31 21:59:48,840 INFO L140 encePairwiseOnDemand]: 135/144 looper letters, 30 selfloop transitions, 6 changer transitions 0/141 dead transitions. [2024-10-31 21:59:48,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 141 transitions, 378 flow [2024-10-31 21:59:48,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:48,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:59:48,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 360 transitions. [2024-10-31 21:59:48,843 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2024-10-31 21:59:48,843 INFO L175 Difference]: Start difference. First operand has 136 places, 128 transitions, 277 flow. Second operand 3 states and 360 transitions. [2024-10-31 21:59:48,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 141 transitions, 378 flow [2024-10-31 21:59:48,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 141 transitions, 368 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 21:59:48,849 INFO L231 Difference]: Finished difference. Result has 133 places, 130 transitions, 305 flow [2024-10-31 21:59:48,850 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=305, PETRI_PLACES=133, PETRI_TRANSITIONS=130} [2024-10-31 21:59:48,850 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 1 predicate places. [2024-10-31 21:59:48,851 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 130 transitions, 305 flow [2024-10-31 21:59:48,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:48,854 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:48,854 INFO L204 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] [2024-10-31 21:59:48,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 21:59:48,855 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-10-31 21:59:48,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:48,855 INFO L85 PathProgramCache]: Analyzing trace with hash -983623192, now seen corresponding path program 1 times [2024-10-31 21:59:48,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:48,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124250870] [2024-10-31 21:59:48,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:48,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:48,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:48,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:48,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:48,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124250870] [2024-10-31 21:59:48,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124250870] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:48,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:48,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:48,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908528537] [2024-10-31 21:59:48,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:48,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:48,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:48,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:48,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:48,958 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 144 [2024-10-31 21:59:48,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 130 transitions, 305 flow. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:48,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:48,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 144 [2024-10-31 21:59:48,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:49,126 INFO L124 PetriNetUnfolderBase]: 95/793 cut-off events. [2024-10-31 21:59:49,127 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-10-31 21:59:49,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1128 conditions, 793 events. 95/793 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4750 event pairs, 60 based on Foata normal form. 0/723 useless extension candidates. Maximal degree in co-relation 1121. Up to 189 conditions per place. [2024-10-31 21:59:49,131 INFO L140 encePairwiseOnDemand]: 139/144 looper letters, 27 selfloop transitions, 4 changer transitions 0/137 dead transitions. [2024-10-31 21:59:49,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 137 transitions, 385 flow [2024-10-31 21:59:49,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:49,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:59:49,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 356 transitions. [2024-10-31 21:59:49,134 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8240740740740741 [2024-10-31 21:59:49,134 INFO L175 Difference]: Start difference. First operand has 133 places, 130 transitions, 305 flow. Second operand 3 states and 356 transitions. [2024-10-31 21:59:49,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 137 transitions, 385 flow [2024-10-31 21:59:49,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 137 transitions, 371 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:59:49,138 INFO L231 Difference]: Finished difference. Result has 135 places, 133 transitions, 325 flow [2024-10-31 21:59:49,139 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=325, PETRI_PLACES=135, PETRI_TRANSITIONS=133} [2024-10-31 21:59:49,140 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 3 predicate places. [2024-10-31 21:59:49,140 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 133 transitions, 325 flow [2024-10-31 21:59:49,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:49,141 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:49,141 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:49,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 21:59:49,141 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-10-31 21:59:49,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:49,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1999974289, now seen corresponding path program 1 times [2024-10-31 21:59:49,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:49,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412375950] [2024-10-31 21:59:49,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:49,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:49,167 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:59:49,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:49,207 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:59:49,208 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 21:59:49,209 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-10-31 21:59:49,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-10-31 21:59:49,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-10-31 21:59:49,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-10-31 21:59:49,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-10-31 21:59:49,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-10-31 21:59:49,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2024-10-31 21:59:49,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-10-31 21:59:49,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-10-31 21:59:49,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-10-31 21:59:49,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-10-31 21:59:49,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-10-31 21:59:49,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 21:59:49,215 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-31 21:59:49,219 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 21:59:49,219 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 21:59:49,283 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 21:59:49,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 193 transitions, 402 flow [2024-10-31 21:59:49,360 INFO L124 PetriNetUnfolderBase]: 40/347 cut-off events. [2024-10-31 21:59:49,361 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 21:59:49,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 347 events. 40/347 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1223 event pairs, 0 based on Foata normal form. 0/285 useless extension candidates. Maximal degree in co-relation 209. Up to 9 conditions per place. [2024-10-31 21:59:49,364 INFO L82 GeneralOperation]: Start removeDead. Operand has 176 places, 193 transitions, 402 flow [2024-10-31 21:59:49,369 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 176 places, 193 transitions, 402 flow [2024-10-31 21:59:49,370 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:59:49,372 INFO L333 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, 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;@1baa8453, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:59:49,372 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-10-31 21:59:49,380 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 21:59:49,380 INFO L124 PetriNetUnfolderBase]: 4/49 cut-off events. [2024-10-31 21:59:49,380 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:59:49,380 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:49,380 INFO L204 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] [2024-10-31 21:59:49,381 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-10-31 21:59:49,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:49,381 INFO L85 PathProgramCache]: Analyzing trace with hash -930480128, now seen corresponding path program 1 times [2024-10-31 21:59:49,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:49,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867573914] [2024-10-31 21:59:49,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:49,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:49,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:49,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:49,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:49,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867573914] [2024-10-31 21:59:49,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867573914] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:49,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:49,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:49,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358860719] [2024-10-31 21:59:49,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:49,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 21:59:49,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:49,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 21:59:49,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 21:59:49,420 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 193 [2024-10-31 21:59:49,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 193 transitions, 402 flow. Second operand has 2 states, 2 states have (on average 154.0) internal successors, (308), 2 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:49,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:49,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 193 [2024-10-31 21:59:49,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:49,914 INFO L124 PetriNetUnfolderBase]: 421/2602 cut-off events. [2024-10-31 21:59:49,914 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-10-31 21:59:49,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3361 conditions, 2602 events. 421/2602 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 21186 event pairs, 414 based on Foata normal form. 577/2911 useless extension candidates. Maximal degree in co-relation 2797. Up to 716 conditions per place. [2024-10-31 21:59:49,933 INFO L140 encePairwiseOnDemand]: 174/193 looper letters, 20 selfloop transitions, 0 changer transitions 0/172 dead transitions. [2024-10-31 21:59:49,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 172 transitions, 400 flow [2024-10-31 21:59:49,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 21:59:49,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-31 21:59:49,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 345 transitions. [2024-10-31 21:59:49,935 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8937823834196891 [2024-10-31 21:59:49,936 INFO L175 Difference]: Start difference. First operand has 176 places, 193 transitions, 402 flow. Second operand 2 states and 345 transitions. [2024-10-31 21:59:49,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 172 transitions, 400 flow [2024-10-31 21:59:49,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 172 transitions, 400 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 21:59:49,940 INFO L231 Difference]: Finished difference. Result has 175 places, 172 transitions, 360 flow [2024-10-31 21:59:49,941 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=360, PETRI_PLACES=175, PETRI_TRANSITIONS=172} [2024-10-31 21:59:49,943 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, -1 predicate places. [2024-10-31 21:59:49,943 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 172 transitions, 360 flow [2024-10-31 21:59:49,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 154.0) internal successors, (308), 2 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:49,944 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:49,944 INFO L204 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] [2024-10-31 21:59:49,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 21:59:49,945 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-10-31 21:59:49,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:49,945 INFO L85 PathProgramCache]: Analyzing trace with hash -886944789, now seen corresponding path program 1 times [2024-10-31 21:59:49,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:49,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049472513] [2024-10-31 21:59:49,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:49,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:49,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:49,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:49,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:49,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049472513] [2024-10-31 21:59:49,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049472513] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:49,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:49,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:49,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885399763] [2024-10-31 21:59:49,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:49,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:49,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:49,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:49,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:50,032 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 193 [2024-10-31 21:59:50,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 172 transitions, 360 flow. Second operand has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:50,033 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:50,033 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 193 [2024-10-31 21:59:50,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:50,759 INFO L124 PetriNetUnfolderBase]: 802/4340 cut-off events. [2024-10-31 21:59:50,759 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-10-31 21:59:50,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5694 conditions, 4340 events. 802/4340 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 41568 event pairs, 348 based on Foata normal form. 1/3941 useless extension candidates. Maximal degree in co-relation 5689. Up to 1303 conditions per place. [2024-10-31 21:59:50,785 INFO L140 encePairwiseOnDemand]: 190/193 looper letters, 31 selfloop transitions, 2 changer transitions 0/179 dead transitions. [2024-10-31 21:59:50,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 179 transitions, 440 flow [2024-10-31 21:59:50,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:50,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:59:50,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 475 transitions. [2024-10-31 21:59:50,787 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8203799654576857 [2024-10-31 21:59:50,787 INFO L175 Difference]: Start difference. First operand has 175 places, 172 transitions, 360 flow. Second operand 3 states and 475 transitions. [2024-10-31 21:59:50,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 179 transitions, 440 flow [2024-10-31 21:59:50,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 179 transitions, 440 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 21:59:50,793 INFO L231 Difference]: Finished difference. Result has 178 places, 173 transitions, 372 flow [2024-10-31 21:59:50,793 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=372, PETRI_PLACES=178, PETRI_TRANSITIONS=173} [2024-10-31 21:59:50,794 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, 2 predicate places. [2024-10-31 21:59:50,794 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 173 transitions, 372 flow [2024-10-31 21:59:50,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:50,794 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:50,795 INFO L204 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] [2024-10-31 21:59:50,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 21:59:50,796 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-10-31 21:59:50,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:50,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1010920344, now seen corresponding path program 1 times [2024-10-31 21:59:50,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:50,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208607394] [2024-10-31 21:59:50,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:50,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:51,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:51,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:51,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208607394] [2024-10-31 21:59:51,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208607394] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:51,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:51,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:59:51,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547964284] [2024-10-31 21:59:51,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:51,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:59:51,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:51,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:59:51,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:59:51,430 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 193 [2024-10-31 21:59:51,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 173 transitions, 372 flow. Second operand has 6 states, 6 states have (on average 136.5) internal successors, (819), 6 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:51,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:51,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 193 [2024-10-31 21:59:51,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:52,873 INFO L124 PetriNetUnfolderBase]: 1739/6865 cut-off events. [2024-10-31 21:59:52,874 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-10-31 21:59:52,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9836 conditions, 6865 events. 1739/6865 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 68791 event pairs, 760 based on Foata normal form. 0/6164 useless extension candidates. Maximal degree in co-relation 9829. Up to 2015 conditions per place. [2024-10-31 21:59:52,935 INFO L140 encePairwiseOnDemand]: 187/193 looper letters, 80 selfloop transitions, 6 changer transitions 0/220 dead transitions. [2024-10-31 21:59:52,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 220 transitions, 638 flow [2024-10-31 21:59:52,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:59:52,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 21:59:52,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 896 transitions. [2024-10-31 21:59:52,939 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7737478411053541 [2024-10-31 21:59:52,939 INFO L175 Difference]: Start difference. First operand has 178 places, 173 transitions, 372 flow. Second operand 6 states and 896 transitions. [2024-10-31 21:59:52,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 220 transitions, 638 flow [2024-10-31 21:59:52,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 220 transitions, 636 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 21:59:52,947 INFO L231 Difference]: Finished difference. Result has 181 places, 172 transitions, 380 flow [2024-10-31 21:59:52,947 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=380, PETRI_PLACES=181, PETRI_TRANSITIONS=172} [2024-10-31 21:59:52,950 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, 5 predicate places. [2024-10-31 21:59:52,950 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 172 transitions, 380 flow [2024-10-31 21:59:52,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.5) internal successors, (819), 6 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:52,951 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:52,951 INFO L204 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] [2024-10-31 21:59:52,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 21:59:52,952 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-10-31 21:59:52,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:52,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1827650231, now seen corresponding path program 1 times [2024-10-31 21:59:52,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:52,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093721156] [2024-10-31 21:59:52,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:52,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:53,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:53,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:53,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093721156] [2024-10-31 21:59:53,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093721156] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:53,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:53,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:53,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69390903] [2024-10-31 21:59:53,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:53,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:53,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:53,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:53,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:53,058 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 193 [2024-10-31 21:59:53,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 172 transitions, 380 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:53,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:53,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 193 [2024-10-31 21:59:53,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:55,481 INFO L124 PetriNetUnfolderBase]: 4085/14792 cut-off events. [2024-10-31 21:59:55,482 INFO L125 PetriNetUnfolderBase]: For 240/240 co-relation queries the response was YES. [2024-10-31 21:59:55,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21539 conditions, 14792 events. 4085/14792 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 164322 event pairs, 1409 based on Foata normal form. 0/13243 useless extension candidates. Maximal degree in co-relation 21532. Up to 3578 conditions per place. [2024-10-31 21:59:55,601 INFO L140 encePairwiseOnDemand]: 174/193 looper letters, 58 selfloop transitions, 14 changer transitions 0/205 dead transitions. [2024-10-31 21:59:55,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 205 transitions, 601 flow [2024-10-31 21:59:55,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:55,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:59:55,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 479 transitions. [2024-10-31 21:59:55,604 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8272884283246977 [2024-10-31 21:59:55,604 INFO L175 Difference]: Start difference. First operand has 181 places, 172 transitions, 380 flow. Second operand 3 states and 479 transitions. [2024-10-31 21:59:55,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 205 transitions, 601 flow [2024-10-31 21:59:55,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 205 transitions, 589 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 21:59:55,611 INFO L231 Difference]: Finished difference. Result has 180 places, 186 transitions, 490 flow [2024-10-31 21:59:55,612 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=490, PETRI_PLACES=180, PETRI_TRANSITIONS=186} [2024-10-31 21:59:55,613 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, 4 predicate places. [2024-10-31 21:59:55,613 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 186 transitions, 490 flow [2024-10-31 21:59:55,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:55,614 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:55,614 INFO L204 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] [2024-10-31 21:59:55,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 21:59:55,614 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-10-31 21:59:55,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:55,617 INFO L85 PathProgramCache]: Analyzing trace with hash 909106138, now seen corresponding path program 1 times [2024-10-31 21:59:55,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:55,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694696751] [2024-10-31 21:59:55,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:55,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:55,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:55,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:55,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694696751] [2024-10-31 21:59:55,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694696751] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:55,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:55,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:55,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528063104] [2024-10-31 21:59:55,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:55,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:55,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:55,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:55,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:55,739 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 193 [2024-10-31 21:59:55,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 186 transitions, 490 flow. Second operand has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:55,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:55,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 193 [2024-10-31 21:59:55,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:58,354 INFO L124 PetriNetUnfolderBase]: 4151/16635 cut-off events. [2024-10-31 21:59:58,354 INFO L125 PetriNetUnfolderBase]: For 4322/4497 co-relation queries the response was YES. [2024-10-31 21:59:58,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27453 conditions, 16635 events. 4151/16635 cut-off events. For 4322/4497 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 195215 event pairs, 2411 based on Foata normal form. 46/15100 useless extension candidates. Maximal degree in co-relation 27445. Up to 5625 conditions per place. [2024-10-31 21:59:58,460 INFO L140 encePairwiseOnDemand]: 184/193 looper letters, 52 selfloop transitions, 14 changer transitions 0/210 dead transitions. [2024-10-31 21:59:58,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 210 transitions, 708 flow [2024-10-31 21:59:58,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:58,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 21:59:58,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 473 transitions. [2024-10-31 21:59:58,463 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8169257340241797 [2024-10-31 21:59:58,463 INFO L175 Difference]: Start difference. First operand has 180 places, 186 transitions, 490 flow. Second operand 3 states and 473 transitions. [2024-10-31 21:59:58,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 210 transitions, 708 flow [2024-10-31 21:59:58,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 210 transitions, 670 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:59:58,476 INFO L231 Difference]: Finished difference. Result has 182 places, 198 transitions, 588 flow [2024-10-31 21:59:58,477 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=588, PETRI_PLACES=182, PETRI_TRANSITIONS=198} [2024-10-31 21:59:58,477 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, 6 predicate places. [2024-10-31 21:59:58,477 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 198 transitions, 588 flow [2024-10-31 21:59:58,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:58,478 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:58,478 INFO L204 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] [2024-10-31 21:59:58,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 21:59:58,479 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-10-31 21:59:58,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:58,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1460415895, now seen corresponding path program 1 times [2024-10-31 21:59:58,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:58,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936663776] [2024-10-31 21:59:58,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:58,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:58,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:58,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:58,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:58,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936663776] [2024-10-31 21:59:58,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936663776] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:58,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388079383] [2024-10-31 21:59:58,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:58,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:58,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c150581a-ed56-4396-ab6b-81d7af219dd0/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:58,575 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c150581a-ed56-4396-ab6b-81d7af219dd0/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:58,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c150581a-ed56-4396-ab6b-81d7af219dd0/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 21:59:58,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:58,689 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:59:58,692 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:58,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:58,781 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:59:58,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:58,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388079383] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:59:58,885 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:59:58,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-31 21:59:58,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870542995] [2024-10-31 21:59:58,886 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:59:58,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 21:59:58,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:58,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 21:59:58,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-31 21:59:59,017 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 193 [2024-10-31 21:59:59,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 198 transitions, 588 flow. Second operand has 10 states, 10 states have (on average 146.5) internal successors, (1465), 10 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:59,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:59,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 193 [2024-10-31 21:59:59,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:59,736 INFO L124 PetriNetUnfolderBase]: 762/3672 cut-off events. [2024-10-31 21:59:59,736 INFO L125 PetriNetUnfolderBase]: For 511/522 co-relation queries the response was YES. [2024-10-31 21:59:59,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5704 conditions, 3672 events. 762/3672 cut-off events. For 511/522 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 33068 event pairs, 75 based on Foata normal form. 105/3541 useless extension candidates. Maximal degree in co-relation 5695. Up to 478 conditions per place. [2024-10-31 21:59:59,762 INFO L140 encePairwiseOnDemand]: 188/193 looper letters, 72 selfloop transitions, 7 changer transitions 0/202 dead transitions. [2024-10-31 21:59:59,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 202 transitions, 708 flow [2024-10-31 21:59:59,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 21:59:59,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-31 21:59:59,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1377 transitions. [2024-10-31 21:59:59,766 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7927461139896373 [2024-10-31 21:59:59,766 INFO L175 Difference]: Start difference. First operand has 182 places, 198 transitions, 588 flow. Second operand 9 states and 1377 transitions. [2024-10-31 21:59:59,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 202 transitions, 708 flow [2024-10-31 21:59:59,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 202 transitions, 688 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 21:59:59,774 INFO L231 Difference]: Finished difference. Result has 143 places, 146 transitions, 432 flow [2024-10-31 21:59:59,774 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=432, PETRI_PLACES=143, PETRI_TRANSITIONS=146} [2024-10-31 21:59:59,775 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, -33 predicate places. [2024-10-31 21:59:59,775 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 146 transitions, 432 flow [2024-10-31 21:59:59,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.5) internal successors, (1465), 10 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:59,776 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:59,776 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:59,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c150581a-ed56-4396-ab6b-81d7af219dd0/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 21:59:59,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c150581a-ed56-4396-ab6b-81d7af219dd0/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:59,977 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-10-31 21:59:59,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:59,978 INFO L85 PathProgramCache]: Analyzing trace with hash -685547369, now seen corresponding path program 1 times [2024-10-31 21:59:59,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:59,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929634145] [2024-10-31 21:59:59,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:59,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:00,029 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-31 22:00:00,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:00,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929634145] [2024-10-31 22:00:00,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929634145] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:00,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:00,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:00,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711223655] [2024-10-31 22:00:00,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:00,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:00,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:00,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:00,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:00,079 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 193 [2024-10-31 22:00:00,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 146 transitions, 432 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:00,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:00,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 193 [2024-10-31 22:00:00,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:00,297 INFO L124 PetriNetUnfolderBase]: 260/1287 cut-off events. [2024-10-31 22:00:00,297 INFO L125 PetriNetUnfolderBase]: For 454/475 co-relation queries the response was YES. [2024-10-31 22:00:00,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2333 conditions, 1287 events. 260/1287 cut-off events. For 454/475 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 8696 event pairs, 132 based on Foata normal form. 7/1202 useless extension candidates. Maximal degree in co-relation 2324. Up to 459 conditions per place. [2024-10-31 22:00:00,308 INFO L140 encePairwiseOnDemand]: 185/193 looper letters, 42 selfloop transitions, 12 changer transitions 0/160 dead transitions. [2024-10-31 22:00:00,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 160 transitions, 584 flow [2024-10-31 22:00:00,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:00,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:00,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 459 transitions. [2024-10-31 22:00:00,310 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7927461139896373 [2024-10-31 22:00:00,311 INFO L175 Difference]: Start difference. First operand has 143 places, 146 transitions, 432 flow. Second operand 3 states and 459 transitions. [2024-10-31 22:00:00,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 160 transitions, 584 flow [2024-10-31 22:00:00,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 160 transitions, 569 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-10-31 22:00:00,315 INFO L231 Difference]: Finished difference. Result has 142 places, 154 transitions, 515 flow [2024-10-31 22:00:00,316 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=515, PETRI_PLACES=142, PETRI_TRANSITIONS=154} [2024-10-31 22:00:00,316 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, -34 predicate places. [2024-10-31 22:00:00,317 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 154 transitions, 515 flow [2024-10-31 22:00:00,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:00,317 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:00,318 INFO L204 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] [2024-10-31 22:00:00,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:00:00,318 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-10-31 22:00:00,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:00,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1241489000, now seen corresponding path program 1 times [2024-10-31 22:00:00,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:00,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140866260] [2024-10-31 22:00:00,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:00,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:00,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:00,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:00,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:00,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140866260] [2024-10-31 22:00:00,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140866260] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:00,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:00,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:00,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904834798] [2024-10-31 22:00:00,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:00,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:00,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:00,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:00,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:00,447 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 193 [2024-10-31 22:00:00,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 154 transitions, 515 flow. Second operand has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:00,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:00,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 193 [2024-10-31 22:00:00,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:00,687 INFO L124 PetriNetUnfolderBase]: 291/1359 cut-off events. [2024-10-31 22:00:00,687 INFO L125 PetriNetUnfolderBase]: For 1124/1159 co-relation queries the response was YES. [2024-10-31 22:00:00,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2787 conditions, 1359 events. 291/1359 cut-off events. For 1124/1159 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 9379 event pairs, 134 based on Foata normal form. 9/1292 useless extension candidates. Maximal degree in co-relation 2778. Up to 501 conditions per place. [2024-10-31 22:00:00,700 INFO L140 encePairwiseOnDemand]: 185/193 looper letters, 49 selfloop transitions, 12 changer transitions 0/169 dead transitions. [2024-10-31 22:00:00,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 169 transitions, 704 flow [2024-10-31 22:00:00,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:00,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:00,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 460 transitions. [2024-10-31 22:00:00,702 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7944732297063903 [2024-10-31 22:00:00,703 INFO L175 Difference]: Start difference. First operand has 142 places, 154 transitions, 515 flow. Second operand 3 states and 460 transitions. [2024-10-31 22:00:00,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 169 transitions, 704 flow [2024-10-31 22:00:00,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 169 transitions, 676 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:00:00,708 INFO L231 Difference]: Finished difference. Result has 144 places, 162 transitions, 601 flow [2024-10-31 22:00:00,709 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=491, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=601, PETRI_PLACES=144, PETRI_TRANSITIONS=162} [2024-10-31 22:00:00,709 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, -32 predicate places. [2024-10-31 22:00:00,710 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 162 transitions, 601 flow [2024-10-31 22:00:00,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:00,710 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:00,711 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:00,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:00:00,711 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-10-31 22:00:00,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:00,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1863380673, now seen corresponding path program 1 times [2024-10-31 22:00:00,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:00,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094471173] [2024-10-31 22:00:00,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:00,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:00,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:00,747 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:00,776 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:00,778 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:00:00,779 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 16 remaining) [2024-10-31 22:00:00,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2024-10-31 22:00:00,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2024-10-31 22:00:00,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2024-10-31 22:00:00,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2024-10-31 22:00:00,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2024-10-31 22:00:00,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2024-10-31 22:00:00,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2024-10-31 22:00:00,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2024-10-31 22:00:00,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2024-10-31 22:00:00,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2024-10-31 22:00:00,781 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2024-10-31 22:00:00,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2024-10-31 22:00:00,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2024-10-31 22:00:00,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2024-10-31 22:00:00,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2024-10-31 22:00:00,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 22:00:00,783 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:00,784 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:00:00,784 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-31 22:00:00,819 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-31 22:00:00,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 220 places, 242 transitions, 511 flow [2024-10-31 22:00:00,969 INFO L124 PetriNetUnfolderBase]: 62/532 cut-off events. [2024-10-31 22:00:00,969 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-10-31 22:00:00,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 557 conditions, 532 events. 62/532 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2051 event pairs, 1 based on Foata normal form. 0/438 useless extension candidates. Maximal degree in co-relation 355. Up to 16 conditions per place. [2024-10-31 22:00:00,972 INFO L82 GeneralOperation]: Start removeDead. Operand has 220 places, 242 transitions, 511 flow [2024-10-31 22:00:00,977 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 220 places, 242 transitions, 511 flow [2024-10-31 22:00:00,978 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:00:00,979 INFO L333 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, 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;@1baa8453, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:00:00,979 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-10-31 22:00:00,983 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:00:00,983 INFO L124 PetriNetUnfolderBase]: 4/49 cut-off events. [2024-10-31 22:00:00,984 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:00:00,984 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:00,984 INFO L204 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] [2024-10-31 22:00:00,984 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-31 22:00:00,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:00,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1938267136, now seen corresponding path program 1 times [2024-10-31 22:00:00,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:00,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448437135] [2024-10-31 22:00:00,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:00,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:01,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:01,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:01,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448437135] [2024-10-31 22:00:01,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448437135] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:01,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:01,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:01,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756333560] [2024-10-31 22:00:01,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:01,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:00:01,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:01,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:00:01,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:00:01,007 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 242 [2024-10-31 22:00:01,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 242 transitions, 511 flow. Second operand has 2 states, 2 states have (on average 189.0) internal successors, (378), 2 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:01,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:01,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 242 [2024-10-31 22:00:01,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:03,981 INFO L124 PetriNetUnfolderBase]: 4833/20255 cut-off events. [2024-10-31 22:00:03,982 INFO L125 PetriNetUnfolderBase]: For 940/940 co-relation queries the response was YES. [2024-10-31 22:00:04,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27680 conditions, 20255 events. 4833/20255 cut-off events. For 940/940 co-relation queries the response was YES. Maximal size of possible extension queue 451. Compared 243219 event pairs, 4795 based on Foata normal form. 5465/23774 useless extension candidates. Maximal degree in co-relation 23268. Up to 6995 conditions per place. [2024-10-31 22:00:04,121 INFO L140 encePairwiseOnDemand]: 217/242 looper letters, 28 selfloop transitions, 0 changer transitions 0/215 dead transitions. [2024-10-31 22:00:04,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 215 transitions, 513 flow [2024-10-31 22:00:04,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:00:04,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-31 22:00:04,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 429 transitions. [2024-10-31 22:00:04,124 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8863636363636364 [2024-10-31 22:00:04,124 INFO L175 Difference]: Start difference. First operand has 220 places, 242 transitions, 511 flow. Second operand 2 states and 429 transitions. [2024-10-31 22:00:04,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 215 transitions, 513 flow [2024-10-31 22:00:04,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 215 transitions, 513 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:04,131 INFO L231 Difference]: Finished difference. Result has 219 places, 215 transitions, 457 flow [2024-10-31 22:00:04,131 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=457, PETRI_PLACES=219, PETRI_TRANSITIONS=215} [2024-10-31 22:00:04,132 INFO L277 CegarLoopForPetriNet]: 220 programPoint places, -1 predicate places. [2024-10-31 22:00:04,132 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 215 transitions, 457 flow [2024-10-31 22:00:04,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 189.0) internal successors, (378), 2 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:04,132 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:04,133 INFO L204 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] [2024-10-31 22:00:04,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-31 22:00:04,133 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-31 22:00:04,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:04,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1292357163, now seen corresponding path program 1 times [2024-10-31 22:00:04,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:04,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842167925] [2024-10-31 22:00:04,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:04,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:04,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:04,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:04,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842167925] [2024-10-31 22:00:04,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842167925] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:04,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:04,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:00:04,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871911619] [2024-10-31 22:00:04,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:04,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:04,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:04,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:04,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:04,210 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 242 [2024-10-31 22:00:04,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 215 transitions, 457 flow. Second operand has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:04,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:04,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 242 [2024-10-31 22:00:04,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:09,509 INFO L124 PetriNetUnfolderBase]: 8969/35405 cut-off events. [2024-10-31 22:00:09,510 INFO L125 PetriNetUnfolderBase]: For 937/937 co-relation queries the response was YES. [2024-10-31 22:00:09,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48644 conditions, 35405 events. 8969/35405 cut-off events. For 937/937 co-relation queries the response was YES. Maximal size of possible extension queue 762. Compared 458373 event pairs, 8324 based on Foata normal form. 1/32003 useless extension candidates. Maximal degree in co-relation 48638. Up to 12802 conditions per place. [2024-10-31 22:00:09,860 INFO L140 encePairwiseOnDemand]: 239/242 looper letters, 39 selfloop transitions, 2 changer transitions 0/222 dead transitions. [2024-10-31 22:00:09,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 222 transitions, 553 flow [2024-10-31 22:00:09,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:09,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:09,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 588 transitions. [2024-10-31 22:00:09,864 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8099173553719008 [2024-10-31 22:00:09,865 INFO L175 Difference]: Start difference. First operand has 219 places, 215 transitions, 457 flow. Second operand 3 states and 588 transitions. [2024-10-31 22:00:09,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 222 transitions, 553 flow [2024-10-31 22:00:09,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 222 transitions, 553 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:09,884 INFO L231 Difference]: Finished difference. Result has 222 places, 216 transitions, 469 flow [2024-10-31 22:00:09,885 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=469, PETRI_PLACES=222, PETRI_TRANSITIONS=216} [2024-10-31 22:00:09,887 INFO L277 CegarLoopForPetriNet]: 220 programPoint places, 2 predicate places. [2024-10-31 22:00:09,888 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 216 transitions, 469 flow [2024-10-31 22:00:09,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:09,890 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:09,891 INFO L204 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] [2024-10-31 22:00:09,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-31 22:00:09,891 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-31 22:00:09,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:09,891 INFO L85 PathProgramCache]: Analyzing trace with hash 2122930970, now seen corresponding path program 1 times [2024-10-31 22:00:09,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:09,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595197681] [2024-10-31 22:00:09,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:09,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:09,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:10,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:10,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:10,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595197681] [2024-10-31 22:00:10,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595197681] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:10,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:10,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:10,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508932606] [2024-10-31 22:00:10,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:10,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:10,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:10,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:10,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:10,400 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 242 [2024-10-31 22:00:10,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 216 transitions, 469 flow. Second operand has 6 states, 6 states have (on average 171.5) internal successors, (1029), 6 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:10,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:10,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 242 [2024-10-31 22:00:10,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand