./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_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_90a1763a-09a3-4852-9a3e-a82d93929af7/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90a1763a-09a3-4852-9a3e-a82d93929af7/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_90a1763a-09a3-4852-9a3e-a82d93929af7/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90a1763a-09a3-4852-9a3e-a82d93929af7/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90a1763a-09a3-4852-9a3e-a82d93929af7/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_90a1763a-09a3-4852-9a3e-a82d93929af7/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 3eff698bae51c39e8a3a4c763800dbda831dabb73a169fa31c8e326faee47cd8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:10:01,491 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:10:01,570 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90a1763a-09a3-4852-9a3e-a82d93929af7/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:10:01,578 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:10:01,579 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:10:01,609 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:10:01,610 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:10:01,614 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:10:01,615 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:10:01,615 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:10:01,616 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:10:01,616 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:10:01,617 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:10:01,621 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:10:01,621 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:10:01,622 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:10:01,622 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:10:01,622 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:10:01,623 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:10:01,623 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:10:01,624 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:10:01,629 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:10:01,629 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:10:01,641 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:10:01,642 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:10:01,642 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:10:01,646 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:10:01,646 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:10:01,647 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:10:01,647 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:10:01,647 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:10:01,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:10:01,648 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:10:01,648 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:10:01,649 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:10:01,649 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:10:01,649 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:10:01,651 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:10:01,651 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:10:01,652 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:10:01,652 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:10:01,652 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_90a1763a-09a3-4852-9a3e-a82d93929af7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90a1763a-09a3-4852-9a3e-a82d93929af7/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3eff698bae51c39e8a3a4c763800dbda831dabb73a169fa31c8e326faee47cd8 [2024-10-31 22:10:01,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:10:02,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:10:02,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:10:02,043 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:10:02,044 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:10:02,045 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90a1763a-09a3-4852-9a3e-a82d93929af7/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i Unable to find full path for "g++" [2024-10-31 22:10:04,080 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:10:04,321 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:10:04,321 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90a1763a-09a3-4852-9a3e-a82d93929af7/sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i [2024-10-31 22:10:04,336 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90a1763a-09a3-4852-9a3e-a82d93929af7/bin/uautomizer-verify-4GaUIPS5ZU/data/be483e6f6/b354e88765e640f6a5aeb53fe5b0c8bb/FLAG8b82227f5 [2024-10-31 22:10:04,354 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90a1763a-09a3-4852-9a3e-a82d93929af7/bin/uautomizer-verify-4GaUIPS5ZU/data/be483e6f6/b354e88765e640f6a5aeb53fe5b0c8bb [2024-10-31 22:10:04,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:10:04,361 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:10:04,365 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:10:04,365 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:10:04,372 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:10:04,372 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:10:04" (1/1) ... [2024-10-31 22:10:04,374 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31026305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:04, skipping insertion in model container [2024-10-31 22:10:04,374 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:10:04" (1/1) ... [2024-10-31 22:10:04,421 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:10:04,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:10:04,962 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:10:05,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:10:05,096 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:10:05,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:05 WrapperNode [2024-10-31 22:10:05,097 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:10:05,098 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:10:05,098 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:10:05,098 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:10:05,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:05" (1/1) ... [2024-10-31 22:10:05,120 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:05" (1/1) ... [2024-10-31 22:10:05,150 INFO L138 Inliner]: procedures = 171, calls = 43, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 114 [2024-10-31 22:10:05,151 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:10:05,152 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:10:05,152 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:10:05,152 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:10:05,162 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:05" (1/1) ... [2024-10-31 22:10:05,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:05" (1/1) ... [2024-10-31 22:10:05,174 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:05" (1/1) ... [2024-10-31 22:10:05,174 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:05" (1/1) ... [2024-10-31 22:10:05,191 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:05" (1/1) ... [2024-10-31 22:10:05,203 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:05" (1/1) ... [2024-10-31 22:10:05,205 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:05" (1/1) ... [2024-10-31 22:10:05,207 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:05" (1/1) ... [2024-10-31 22:10:05,210 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:10:05,212 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:10:05,212 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:10:05,212 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:10:05,213 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:05" (1/1) ... [2024-10-31 22:10:05,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:10:05,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90a1763a-09a3-4852-9a3e-a82d93929af7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:05,258 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90a1763a-09a3-4852-9a3e-a82d93929af7/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:05,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90a1763a-09a3-4852-9a3e-a82d93929af7/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:10:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:10:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:10:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:10:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:10:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:10:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-31 22:10:05,296 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-31 22:10:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:10:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:10:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:10:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:10:05,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:10:05,299 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 22:10:05,528 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:10:05,531 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:10:05,969 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:10:05,970 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:10:06,029 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:10:06,030 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-10-31 22:10:06,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:10:06 BoogieIcfgContainer [2024-10-31 22:10:06,038 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:10:06,041 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:10:06,041 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:10:06,048 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:10:06,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:10:04" (1/3) ... [2024-10-31 22:10:06,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43821ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:10:06, skipping insertion in model container [2024-10-31 22:10:06,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:05" (2/3) ... [2024-10-31 22:10:06,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43821ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:10:06, skipping insertion in model container [2024-10-31 22:10:06,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:10:06" (3/3) ... [2024-10-31 22:10:06,053 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_36-indirect_racefree.i [2024-10-31 22:10:06,076 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:10:06,076 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2024-10-31 22:10:06,077 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:10:06,184 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 22:10:06,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 189 transitions, 385 flow [2024-10-31 22:10:06,401 INFO L124 PetriNetUnfolderBase]: 19/256 cut-off events. [2024-10-31 22:10:06,401 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:10:06,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 256 events. 19/256 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 785 event pairs, 0 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 139. Up to 4 conditions per place. [2024-10-31 22:10:06,412 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 189 transitions, 385 flow [2024-10-31 22:10:06,423 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 179 places, 189 transitions, 385 flow [2024-10-31 22:10:06,441 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:10:06,453 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;@17195cb1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:10:06,453 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-10-31 22:10:06,465 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:10:06,467 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-10-31 22:10:06,467 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:10:06,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:06,468 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] [2024-10-31 22:10:06,469 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-31 22:10:06,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:06,475 INFO L85 PathProgramCache]: Analyzing trace with hash -593581314, now seen corresponding path program 1 times [2024-10-31 22:10:06,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:06,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783713575] [2024-10-31 22:10:06,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:06,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:06,750 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 22:10:06,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:06,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783713575] [2024-10-31 22:10:06,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783713575] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:06,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:06,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:06,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838339334] [2024-10-31 22:10:06,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:06,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:06,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:06,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:06,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:06,837 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 189 [2024-10-31 22:10:06,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 189 transitions, 385 flow. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 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 22:10:06,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:06,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 189 [2024-10-31 22:10:06,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:07,146 INFO L124 PetriNetUnfolderBase]: 37/641 cut-off events. [2024-10-31 22:10:07,147 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 22:10:07,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 745 conditions, 641 events. 37/641 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2909 event pairs, 36 based on Foata normal form. 62/639 useless extension candidates. Maximal degree in co-relation 617. Up to 97 conditions per place. [2024-10-31 22:10:07,156 INFO L140 encePairwiseOnDemand]: 174/189 looper letters, 18 selfloop transitions, 2 changer transitions 0/174 dead transitions. [2024-10-31 22:10:07,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 174 transitions, 395 flow [2024-10-31 22:10:07,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:07,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:07,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 498 transitions. [2024-10-31 22:10:07,178 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8783068783068783 [2024-10-31 22:10:07,180 INFO L175 Difference]: Start difference. First operand has 179 places, 189 transitions, 385 flow. Second operand 3 states and 498 transitions. [2024-10-31 22:10:07,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 174 transitions, 395 flow [2024-10-31 22:10:07,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 174 transitions, 395 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:10:07,192 INFO L231 Difference]: Finished difference. Result has 178 places, 174 transitions, 359 flow [2024-10-31 22:10:07,195 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=359, PETRI_PLACES=178, PETRI_TRANSITIONS=174} [2024-10-31 22:10:07,201 INFO L277 CegarLoopForPetriNet]: 179 programPoint places, -1 predicate places. [2024-10-31 22:10:07,202 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 174 transitions, 359 flow [2024-10-31 22:10:07,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 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 22:10:07,202 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:07,203 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] [2024-10-31 22:10:07,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:10:07,203 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-31 22:10:07,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:07,204 INFO L85 PathProgramCache]: Analyzing trace with hash 799022631, now seen corresponding path program 1 times [2024-10-31 22:10:07,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:07,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455427906] [2024-10-31 22:10:07,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:07,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:07,333 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 22:10:07,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:07,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455427906] [2024-10-31 22:10:07,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455427906] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:07,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:07,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:07,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106759472] [2024-10-31 22:10:07,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:07,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:07,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:07,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:07,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:07,354 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 189 [2024-10-31 22:10:07,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 174 transitions, 359 flow. Second operand has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 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 22:10:07,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:07,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 189 [2024-10-31 22:10:07,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:07,484 INFO L124 PetriNetUnfolderBase]: 37/638 cut-off events. [2024-10-31 22:10:07,484 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:10:07,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 742 conditions, 638 events. 37/638 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2889 event pairs, 36 based on Foata normal form. 0/579 useless extension candidates. Maximal degree in co-relation 702. Up to 94 conditions per place. [2024-10-31 22:10:07,488 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 16 selfloop transitions, 1 changer transitions 0/172 dead transitions. [2024-10-31 22:10:07,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 172 transitions, 389 flow [2024-10-31 22:10:07,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:07,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:07,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 490 transitions. [2024-10-31 22:10:07,491 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8641975308641975 [2024-10-31 22:10:07,491 INFO L175 Difference]: Start difference. First operand has 178 places, 174 transitions, 359 flow. Second operand 3 states and 490 transitions. [2024-10-31 22:10:07,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 172 transitions, 389 flow [2024-10-31 22:10:07,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 172 transitions, 385 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:07,496 INFO L231 Difference]: Finished difference. Result has 176 places, 172 transitions, 353 flow [2024-10-31 22:10:07,496 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=353, PETRI_PLACES=176, PETRI_TRANSITIONS=172} [2024-10-31 22:10:07,497 INFO L277 CegarLoopForPetriNet]: 179 programPoint places, -3 predicate places. [2024-10-31 22:10:07,497 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 172 transitions, 353 flow [2024-10-31 22:10:07,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 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 22:10:07,498 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:07,498 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] [2024-10-31 22:10:07,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:10:07,499 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-31 22:10:07,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:07,499 INFO L85 PathProgramCache]: Analyzing trace with hash 156834859, now seen corresponding path program 1 times [2024-10-31 22:10:07,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:07,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308548615] [2024-10-31 22:10:07,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:07,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:07,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:07,592 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 22:10:07,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:07,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308548615] [2024-10-31 22:10:07,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308548615] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:07,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:07,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:07,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190361206] [2024-10-31 22:10:07,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:07,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:07,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:07,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:07,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:07,626 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 189 [2024-10-31 22:10:07,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 172 transitions, 353 flow. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 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 22:10:07,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:07,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 189 [2024-10-31 22:10:07,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:07,802 INFO L124 PetriNetUnfolderBase]: 41/579 cut-off events. [2024-10-31 22:10:07,802 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 22:10:07,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 692 conditions, 579 events. 41/579 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2572 event pairs, 40 based on Foata normal form. 0/523 useless extension candidates. Maximal degree in co-relation 654. Up to 104 conditions per place. [2024-10-31 22:10:07,806 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 18 selfloop transitions, 2 changer transitions 0/171 dead transitions. [2024-10-31 22:10:07,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 171 transitions, 391 flow [2024-10-31 22:10:07,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:07,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:07,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 486 transitions. [2024-10-31 22:10:07,809 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2024-10-31 22:10:07,810 INFO L175 Difference]: Start difference. First operand has 176 places, 172 transitions, 353 flow. Second operand 3 states and 486 transitions. [2024-10-31 22:10:07,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 171 transitions, 391 flow [2024-10-31 22:10:07,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 171 transitions, 390 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:10:07,819 INFO L231 Difference]: Finished difference. Result has 176 places, 171 transitions, 354 flow [2024-10-31 22:10:07,820 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=354, PETRI_PLACES=176, PETRI_TRANSITIONS=171} [2024-10-31 22:10:07,821 INFO L277 CegarLoopForPetriNet]: 179 programPoint places, -3 predicate places. [2024-10-31 22:10:07,821 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 171 transitions, 354 flow [2024-10-31 22:10:07,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 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 22:10:07,821 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:07,822 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] [2024-10-31 22:10:07,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:10:07,822 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-31 22:10:07,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:07,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1167134520, now seen corresponding path program 1 times [2024-10-31 22:10:07,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:07,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685787369] [2024-10-31 22:10:07,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:07,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:07,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:08,519 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 22:10:08,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:08,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685787369] [2024-10-31 22:10:08,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685787369] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:08,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:08,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:10:08,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717353370] [2024-10-31 22:10:08,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:08,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:10:08,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:08,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:10:08,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:10:08,855 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 189 [2024-10-31 22:10:08,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 171 transitions, 354 flow. Second operand has 6 states, 6 states have (on average 127.5) internal successors, (765), 6 states have internal predecessors, (765), 0 states have call successors, (0), 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 22:10:08,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:08,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 189 [2024-10-31 22:10:08,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:09,673 INFO L124 PetriNetUnfolderBase]: 579/2265 cut-off events. [2024-10-31 22:10:09,674 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:10:09,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3527 conditions, 2265 events. 579/2265 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 15926 event pairs, 357 based on Foata normal form. 0/2071 useless extension candidates. Maximal degree in co-relation 3489. Up to 1080 conditions per place. [2024-10-31 22:10:09,687 INFO L140 encePairwiseOnDemand]: 166/189 looper letters, 73 selfloop transitions, 70 changer transitions 0/264 dead transitions. [2024-10-31 22:10:09,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 264 transitions, 826 flow [2024-10-31 22:10:09,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:10:09,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:10:09,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 900 transitions. [2024-10-31 22:10:09,690 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7936507936507936 [2024-10-31 22:10:09,690 INFO L175 Difference]: Start difference. First operand has 176 places, 171 transitions, 354 flow. Second operand 6 states and 900 transitions. [2024-10-31 22:10:09,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 264 transitions, 826 flow [2024-10-31 22:10:09,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 264 transitions, 822 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:09,698 INFO L231 Difference]: Finished difference. Result has 184 places, 240 transitions, 812 flow [2024-10-31 22:10:09,698 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=812, PETRI_PLACES=184, PETRI_TRANSITIONS=240} [2024-10-31 22:10:09,699 INFO L277 CegarLoopForPetriNet]: 179 programPoint places, 5 predicate places. [2024-10-31 22:10:09,699 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 240 transitions, 812 flow [2024-10-31 22:10:09,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 127.5) internal successors, (765), 6 states have internal predecessors, (765), 0 states have call successors, (0), 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 22:10:09,700 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:09,700 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] [2024-10-31 22:10:09,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:10:09,701 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-31 22:10:09,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:09,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1082079899, now seen corresponding path program 1 times [2024-10-31 22:10:09,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:09,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687866075] [2024-10-31 22:10:09,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:09,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:09,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:09,758 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 22:10:09,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:09,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687866075] [2024-10-31 22:10:09,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687866075] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:09,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:09,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:10:09,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292562254] [2024-10-31 22:10:09,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:09,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:09,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:09,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:09,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:09,796 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 189 [2024-10-31 22:10:09,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 240 transitions, 812 flow. Second operand has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 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 22:10:09,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:09,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 189 [2024-10-31 22:10:09,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:10,007 INFO L124 PetriNetUnfolderBase]: 188/1122 cut-off events. [2024-10-31 22:10:10,007 INFO L125 PetriNetUnfolderBase]: For 104/107 co-relation queries the response was YES. [2024-10-31 22:10:10,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1825 conditions, 1122 events. 188/1122 cut-off events. For 104/107 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6508 event pairs, 28 based on Foata normal form. 1/1044 useless extension candidates. Maximal degree in co-relation 1783. Up to 191 conditions per place. [2024-10-31 22:10:10,013 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 22 selfloop transitions, 3 changer transitions 0/246 dead transitions. [2024-10-31 22:10:10,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 246 transitions, 874 flow [2024-10-31 22:10:10,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:10,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:10,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 499 transitions. [2024-10-31 22:10:10,016 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8800705467372134 [2024-10-31 22:10:10,016 INFO L175 Difference]: Start difference. First operand has 184 places, 240 transitions, 812 flow. Second operand 3 states and 499 transitions. [2024-10-31 22:10:10,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 246 transitions, 874 flow [2024-10-31 22:10:10,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 246 transitions, 874 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:10:10,024 INFO L231 Difference]: Finished difference. Result has 187 places, 240 transitions, 823 flow [2024-10-31 22:10:10,025 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=812, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=823, PETRI_PLACES=187, PETRI_TRANSITIONS=240} [2024-10-31 22:10:10,026 INFO L277 CegarLoopForPetriNet]: 179 programPoint places, 8 predicate places. [2024-10-31 22:10:10,026 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 240 transitions, 823 flow [2024-10-31 22:10:10,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 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 22:10:10,026 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:10,027 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 22:10:10,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:10:10,027 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-31 22:10:10,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:10,028 INFO L85 PathProgramCache]: Analyzing trace with hash -158886799, now seen corresponding path program 1 times [2024-10-31 22:10:10,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:10,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102403467] [2024-10-31 22:10:10,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:10,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:10,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:10,090 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 22:10:10,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:10,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102403467] [2024-10-31 22:10:10,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102403467] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:10,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:10,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:10,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590529104] [2024-10-31 22:10:10,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:10,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:10,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:10,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:10,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:10,109 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 189 [2024-10-31 22:10:10,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 240 transitions, 823 flow. Second operand has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 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 22:10:10,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:10,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 189 [2024-10-31 22:10:10,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:10,289 INFO L124 PetriNetUnfolderBase]: 180/1058 cut-off events. [2024-10-31 22:10:10,289 INFO L125 PetriNetUnfolderBase]: For 94/99 co-relation queries the response was YES. [2024-10-31 22:10:10,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1804 conditions, 1058 events. 180/1058 cut-off events. For 94/99 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 6175 event pairs, 22 based on Foata normal form. 0/998 useless extension candidates. Maximal degree in co-relation 1761. Up to 253 conditions per place. [2024-10-31 22:10:10,295 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 20 selfloop transitions, 1 changer transitions 0/242 dead transitions. [2024-10-31 22:10:10,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 242 transitions, 869 flow [2024-10-31 22:10:10,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:10,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:10,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 494 transitions. [2024-10-31 22:10:10,298 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8712522045855379 [2024-10-31 22:10:10,298 INFO L175 Difference]: Start difference. First operand has 187 places, 240 transitions, 823 flow. Second operand 3 states and 494 transitions. [2024-10-31 22:10:10,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 242 transitions, 869 flow [2024-10-31 22:10:10,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 242 transitions, 863 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:10,306 INFO L231 Difference]: Finished difference. Result has 185 places, 238 transitions, 815 flow [2024-10-31 22:10:10,307 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=813, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=815, PETRI_PLACES=185, PETRI_TRANSITIONS=238} [2024-10-31 22:10:10,307 INFO L277 CegarLoopForPetriNet]: 179 programPoint places, 6 predicate places. [2024-10-31 22:10:10,308 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 238 transitions, 815 flow [2024-10-31 22:10:10,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 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 22:10:10,308 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:10,309 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, 1, 1, 1] [2024-10-31 22:10:10,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:10:10,309 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-31 22:10:10,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:10,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1545767196, now seen corresponding path program 1 times [2024-10-31 22:10:10,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:10,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129885561] [2024-10-31 22:10:10,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:10,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:10,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:10,344 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:10:10,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:10:10,400 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:10:10,400 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:10:10,402 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-10-31 22:10:10,404 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-10-31 22:10:10,404 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-10-31 22:10:10,405 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-10-31 22:10:10,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-10-31 22:10:10,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-10-31 22:10:10,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2024-10-31 22:10:10,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-10-31 22:10:10,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-10-31 22:10:10,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-10-31 22:10:10,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-10-31 22:10:10,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-10-31 22:10:10,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-10-31 22:10:10,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-10-31 22:10:10,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-10-31 22:10:10,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-10-31 22:10:10,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-10-31 22:10:10,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-10-31 22:10:10,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-10-31 22:10:10,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-10-31 22:10:10,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:10:10,410 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:10,413 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:10:10,413 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 22:10:10,455 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 22:10:10,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 245 places, 260 transitions, 536 flow [2024-10-31 22:10:10,546 INFO L124 PetriNetUnfolderBase]: 34/422 cut-off events. [2024-10-31 22:10:10,546 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:10:10,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 434 conditions, 422 events. 34/422 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1618 event pairs, 0 based on Foata normal form. 0/356 useless extension candidates. Maximal degree in co-relation 258. Up to 8 conditions per place. [2024-10-31 22:10:10,549 INFO L82 GeneralOperation]: Start removeDead. Operand has 245 places, 260 transitions, 536 flow [2024-10-31 22:10:10,556 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 245 places, 260 transitions, 536 flow [2024-10-31 22:10:10,558 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:10:10,559 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;@17195cb1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:10:10,559 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-10-31 22:10:10,564 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:10:10,565 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-10-31 22:10:10,565 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:10:10,566 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:10,566 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] [2024-10-31 22:10:10,566 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-31 22:10:10,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:10,567 INFO L85 PathProgramCache]: Analyzing trace with hash -834612094, now seen corresponding path program 1 times [2024-10-31 22:10:10,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:10,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978439379] [2024-10-31 22:10:10,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:10,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:10,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:10,605 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 22:10:10,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:10,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978439379] [2024-10-31 22:10:10,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978439379] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:10,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:10,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:10,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417855792] [2024-10-31 22:10:10,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:10,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:10,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:10,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:10,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:10,637 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 260 [2024-10-31 22:10:10,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 260 transitions, 536 flow. Second operand has 3 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 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 22:10:10,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:10,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 260 [2024-10-31 22:10:10,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:11,681 INFO L124 PetriNetUnfolderBase]: 610/5005 cut-off events. [2024-10-31 22:10:11,681 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-10-31 22:10:11,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6083 conditions, 5005 events. 610/5005 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 46949 event pairs, 600 based on Foata normal form. 696/5201 useless extension candidates. Maximal degree in co-relation 5147. Up to 1033 conditions per place. [2024-10-31 22:10:11,716 INFO L140 encePairwiseOnDemand]: 239/260 looper letters, 26 selfloop transitions, 2 changer transitions 0/239 dead transitions. [2024-10-31 22:10:11,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 239 transitions, 550 flow [2024-10-31 22:10:11,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:11,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:11,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2024-10-31 22:10:11,719 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8756410256410256 [2024-10-31 22:10:11,719 INFO L175 Difference]: Start difference. First operand has 245 places, 260 transitions, 536 flow. Second operand 3 states and 683 transitions. [2024-10-31 22:10:11,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 239 transitions, 550 flow [2024-10-31 22:10:11,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 239 transitions, 550 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:10:11,724 INFO L231 Difference]: Finished difference. Result has 244 places, 239 transitions, 498 flow [2024-10-31 22:10:11,725 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=244, PETRI_TRANSITIONS=239} [2024-10-31 22:10:11,727 INFO L277 CegarLoopForPetriNet]: 245 programPoint places, -1 predicate places. [2024-10-31 22:10:11,728 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 239 transitions, 498 flow [2024-10-31 22:10:11,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 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 22:10:11,732 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:11,732 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] [2024-10-31 22:10:11,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:10:11,733 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-31 22:10:11,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:11,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1096685355, now seen corresponding path program 1 times [2024-10-31 22:10:11,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:11,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85310920] [2024-10-31 22:10:11,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:11,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:11,765 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 22:10:11,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:11,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85310920] [2024-10-31 22:10:11,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85310920] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:11,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:11,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:11,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452107392] [2024-10-31 22:10:11,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:11,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:11,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:11,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:11,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:11,779 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 260 [2024-10-31 22:10:11,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 239 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 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 22:10:11,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:11,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 260 [2024-10-31 22:10:11,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:12,759 INFO L124 PetriNetUnfolderBase]: 598/4939 cut-off events. [2024-10-31 22:10:12,760 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-10-31 22:10:12,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5998 conditions, 4939 events. 598/4939 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 46042 event pairs, 594 based on Foata normal form. 0/4460 useless extension candidates. Maximal degree in co-relation 5957. Up to 1011 conditions per place. [2024-10-31 22:10:12,804 INFO L140 encePairwiseOnDemand]: 257/260 looper letters, 24 selfloop transitions, 1 changer transitions 0/237 dead transitions. [2024-10-31 22:10:12,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 237 transitions, 544 flow [2024-10-31 22:10:12,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:12,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:12,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 669 transitions. [2024-10-31 22:10:12,810 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8576923076923076 [2024-10-31 22:10:12,811 INFO L175 Difference]: Start difference. First operand has 244 places, 239 transitions, 498 flow. Second operand 3 states and 669 transitions. [2024-10-31 22:10:12,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 237 transitions, 544 flow [2024-10-31 22:10:12,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 237 transitions, 540 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:12,817 INFO L231 Difference]: Finished difference. Result has 242 places, 237 transitions, 492 flow [2024-10-31 22:10:12,818 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=492, PETRI_PLACES=242, PETRI_TRANSITIONS=237} [2024-10-31 22:10:12,819 INFO L277 CegarLoopForPetriNet]: 245 programPoint places, -3 predicate places. [2024-10-31 22:10:12,819 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 237 transitions, 492 flow [2024-10-31 22:10:12,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 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 22:10:12,820 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:12,820 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] [2024-10-31 22:10:12,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:10:12,820 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-31 22:10:12,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:12,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1440410577, now seen corresponding path program 1 times [2024-10-31 22:10:12,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:12,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026883030] [2024-10-31 22:10:12,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:12,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:12,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:12,853 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 22:10:12,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:12,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026883030] [2024-10-31 22:10:12,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026883030] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:12,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:12,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:12,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827466779] [2024-10-31 22:10:12,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:12,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:12,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:12,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:12,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:12,900 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 260 [2024-10-31 22:10:12,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 237 transitions, 492 flow. Second operand has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 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 22:10:12,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:12,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 260 [2024-10-31 22:10:12,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:14,001 INFO L124 PetriNetUnfolderBase]: 868/5480 cut-off events. [2024-10-31 22:10:14,002 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-10-31 22:10:14,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6980 conditions, 5480 events. 868/5480 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 52502 event pairs, 856 based on Foata normal form. 0/4944 useless extension candidates. Maximal degree in co-relation 6941. Up to 1443 conditions per place. [2024-10-31 22:10:14,038 INFO L140 encePairwiseOnDemand]: 257/260 looper letters, 28 selfloop transitions, 2 changer transitions 0/236 dead transitions. [2024-10-31 22:10:14,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 236 transitions, 550 flow [2024-10-31 22:10:14,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:14,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:14,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 661 transitions. [2024-10-31 22:10:14,041 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8474358974358974 [2024-10-31 22:10:14,041 INFO L175 Difference]: Start difference. First operand has 242 places, 237 transitions, 492 flow. Second operand 3 states and 661 transitions. [2024-10-31 22:10:14,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 236 transitions, 550 flow [2024-10-31 22:10:14,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 236 transitions, 549 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:10:14,046 INFO L231 Difference]: Finished difference. Result has 242 places, 236 transitions, 493 flow [2024-10-31 22:10:14,047 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=493, PETRI_PLACES=242, PETRI_TRANSITIONS=236} [2024-10-31 22:10:14,047 INFO L277 CegarLoopForPetriNet]: 245 programPoint places, -3 predicate places. [2024-10-31 22:10:14,048 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 236 transitions, 493 flow [2024-10-31 22:10:14,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 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 22:10:14,049 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:14,049 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] [2024-10-31 22:10:14,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:10:14,049 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-31 22:10:14,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:14,050 INFO L85 PathProgramCache]: Analyzing trace with hash 2106651580, now seen corresponding path program 1 times [2024-10-31 22:10:14,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:14,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536972778] [2024-10-31 22:10:14,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:14,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:14,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:14,450 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 22:10:14,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:14,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536972778] [2024-10-31 22:10:14,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536972778] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:14,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:14,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:10:14,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71819862] [2024-10-31 22:10:14,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:14,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:10:14,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:14,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:10:14,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:10:14,844 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 260 [2024-10-31 22:10:14,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 236 transitions, 493 flow. Second operand has 6 states, 6 states have (on average 168.5) internal successors, (1011), 6 states have internal predecessors, (1011), 0 states have call successors, (0), 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 22:10:14,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:14,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 260 [2024-10-31 22:10:14,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:25,949 INFO L124 PetriNetUnfolderBase]: 29149/69746 cut-off events. [2024-10-31 22:10:25,949 INFO L125 PetriNetUnfolderBase]: For 710/710 co-relation queries the response was YES. [2024-10-31 22:10:26,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115282 conditions, 69746 events. 29149/69746 cut-off events. For 710/710 co-relation queries the response was YES. Maximal size of possible extension queue 1124. Compared 784271 event pairs, 19147 based on Foata normal form. 0/64958 useless extension candidates. Maximal degree in co-relation 115243. Up to 40545 conditions per place. [2024-10-31 22:10:26,469 INFO L140 encePairwiseOnDemand]: 221/260 looper letters, 122 selfloop transitions, 134 changer transitions 0/418 dead transitions. [2024-10-31 22:10:26,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 418 transitions, 1374 flow [2024-10-31 22:10:26,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:10:26,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:10:26,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1259 transitions. [2024-10-31 22:10:26,475 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8070512820512821 [2024-10-31 22:10:26,476 INFO L175 Difference]: Start difference. First operand has 242 places, 236 transitions, 493 flow. Second operand 6 states and 1259 transitions. [2024-10-31 22:10:26,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 418 transitions, 1374 flow [2024-10-31 22:10:26,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 418 transitions, 1370 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:26,514 INFO L231 Difference]: Finished difference. Result has 250 places, 369 transitions, 1367 flow [2024-10-31 22:10:26,516 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1367, PETRI_PLACES=250, PETRI_TRANSITIONS=369} [2024-10-31 22:10:26,517 INFO L277 CegarLoopForPetriNet]: 245 programPoint places, 5 predicate places. [2024-10-31 22:10:26,517 INFO L471 AbstractCegarLoop]: Abstraction has has 250 places, 369 transitions, 1367 flow [2024-10-31 22:10:26,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.5) internal successors, (1011), 6 states have internal predecessors, (1011), 0 states have call successors, (0), 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 22:10:26,518 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:26,518 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] [2024-10-31 22:10:26,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:10:26,518 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-31 22:10:26,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:26,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1957488873, now seen corresponding path program 1 times [2024-10-31 22:10:26,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:26,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375320537] [2024-10-31 22:10:26,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:26,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:26,591 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 22:10:26,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:26,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375320537] [2024-10-31 22:10:26,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375320537] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:26,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:26,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:10:26,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656232662] [2024-10-31 22:10:26,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:26,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:26,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:26,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:26,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:26,625 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 260 [2024-10-31 22:10:26,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 369 transitions, 1367 flow. Second operand has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 0 states have call successors, (0), 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 22:10:26,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:26,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 260 [2024-10-31 22:10:26,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:33,001 INFO L124 PetriNetUnfolderBase]: 11181/36615 cut-off events. [2024-10-31 22:10:33,001 INFO L125 PetriNetUnfolderBase]: For 5188/5618 co-relation queries the response was YES. [2024-10-31 22:10:33,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64096 conditions, 36615 events. 11181/36615 cut-off events. For 5188/5618 co-relation queries the response was YES. Maximal size of possible extension queue 708. Compared 432380 event pairs, 5145 based on Foata normal form. 1/33397 useless extension candidates. Maximal degree in co-relation 64053. Up to 12382 conditions per place. [2024-10-31 22:10:33,350 INFO L140 encePairwiseOnDemand]: 257/260 looper letters, 32 selfloop transitions, 3 changer transitions 0/377 dead transitions. [2024-10-31 22:10:33,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 377 transitions, 1459 flow [2024-10-31 22:10:33,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:33,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:33,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 679 transitions. [2024-10-31 22:10:33,353 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8705128205128205 [2024-10-31 22:10:33,353 INFO L175 Difference]: Start difference. First operand has 250 places, 369 transitions, 1367 flow. Second operand 3 states and 679 transitions. [2024-10-31 22:10:33,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 377 transitions, 1459 flow [2024-10-31 22:10:33,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 377 transitions, 1459 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:10:33,584 INFO L231 Difference]: Finished difference. Result has 253 places, 371 transitions, 1392 flow [2024-10-31 22:10:33,585 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=1367, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1392, PETRI_PLACES=253, PETRI_TRANSITIONS=371} [2024-10-31 22:10:33,586 INFO L277 CegarLoopForPetriNet]: 245 programPoint places, 8 predicate places. [2024-10-31 22:10:33,586 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 371 transitions, 1392 flow [2024-10-31 22:10:33,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 0 states have call successors, (0), 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 22:10:33,587 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:33,587 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 22:10:33,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:10:33,588 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-31 22:10:33,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:33,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1022684854, now seen corresponding path program 1 times [2024-10-31 22:10:33,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:33,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895440527] [2024-10-31 22:10:33,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:33,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:33,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:33,660 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 22:10:33,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:33,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895440527] [2024-10-31 22:10:33,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895440527] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:33,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:33,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:33,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823052729] [2024-10-31 22:10:33,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:33,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:33,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:33,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:33,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:33,693 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 260 [2024-10-31 22:10:33,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 371 transitions, 1392 flow. Second operand has 3 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 0 states have call successors, (0), 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 22:10:33,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:33,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 260 [2024-10-31 22:10:33,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand