./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/11_fmaxsymopt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff 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_d5f1f33e-9b35-4f45-86cd-60f9427c2fa1/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1f33e-9b35-4f45-86cd-60f9427c2fa1/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1f33e-9b35-4f45-86cd-60f9427c2fa1/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1f33e-9b35-4f45-86cd-60f9427c2fa1/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/11_fmaxsymopt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1f33e-9b35-4f45-86cd-60f9427c2fa1/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1f33e-9b35-4f45-86cd-60f9427c2fa1/bin/uautomizer-verify-uCwYo4JHxu --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 3aaecf4b84c8f01be47d1e624871b73f33541df72e3693614a0a3bb5cc7a97b5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:47:40,582 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:47:40,655 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1f33e-9b35-4f45-86cd-60f9427c2fa1/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:47:40,661 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:47:40,662 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:47:40,691 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:47:40,691 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:47:40,692 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:47:40,693 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:47:40,694 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:47:40,695 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:47:40,696 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:47:40,696 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:47:40,697 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:47:40,698 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:47:40,699 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:47:40,699 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:47:40,700 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:47:40,701 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:47:40,702 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:47:40,702 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:47:40,703 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:47:40,704 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:47:40,705 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:47:40,705 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:47:40,706 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:47:40,707 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:47:40,708 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:47:40,708 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:47:40,709 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:47:40,710 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:47:40,710 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:47:40,711 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:47:40,712 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:47:40,712 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:47:40,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:47:40,713 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:47:40,714 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:47:40,714 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:47:40,715 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:47:40,715 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:47:40,716 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_d5f1f33e-9b35-4f45-86cd-60f9427c2fa1/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1f33e-9b35-4f45-86cd-60f9427c2fa1/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3aaecf4b84c8f01be47d1e624871b73f33541df72e3693614a0a3bb5cc7a97b5 [2023-11-19 07:47:41,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:47:41,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:47:41,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:47:41,074 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:47:41,075 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:47:41,076 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1f33e-9b35-4f45-86cd-60f9427c2fa1/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-ext/11_fmaxsymopt.i [2023-11-19 07:47:44,259 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:47:44,509 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:47:44,509 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1f33e-9b35-4f45-86cd-60f9427c2fa1/sv-benchmarks/c/pthread-ext/11_fmaxsymopt.i [2023-11-19 07:47:44,529 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1f33e-9b35-4f45-86cd-60f9427c2fa1/bin/uautomizer-verify-uCwYo4JHxu/data/e60314a38/5a848b0e51f54854b163d988039d9e4a/FLAGfd096cd2e [2023-11-19 07:47:44,548 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1f33e-9b35-4f45-86cd-60f9427c2fa1/bin/uautomizer-verify-uCwYo4JHxu/data/e60314a38/5a848b0e51f54854b163d988039d9e4a [2023-11-19 07:47:44,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:47:44,553 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:47:44,555 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:47:44,555 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:47:44,560 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:47:44,561 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:47:44" (1/1) ... [2023-11-19 07:47:44,562 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@550242ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:44, skipping insertion in model container [2023-11-19 07:47:44,563 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:47:44" (1/1) ... [2023-11-19 07:47:44,631 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:47:45,007 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:47:45,021 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:47:45,099 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:47:45,161 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:47:45,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:45 WrapperNode [2023-11-19 07:47:45,162 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:47:45,163 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:47:45,163 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:47:45,163 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:47:45,173 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:45" (1/1) ... [2023-11-19 07:47:45,208 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:45" (1/1) ... [2023-11-19 07:47:45,251 INFO L138 Inliner]: procedures = 171, calls = 27, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 136 [2023-11-19 07:47:45,252 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:47:45,253 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:47:45,253 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:47:45,253 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:47:45,263 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:45" (1/1) ... [2023-11-19 07:47:45,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:45" (1/1) ... [2023-11-19 07:47:45,267 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:45" (1/1) ... [2023-11-19 07:47:45,267 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:45" (1/1) ... [2023-11-19 07:47:45,276 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:45" (1/1) ... [2023-11-19 07:47:45,280 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:45" (1/1) ... [2023-11-19 07:47:45,283 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:45" (1/1) ... [2023-11-19 07:47:45,284 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:45" (1/1) ... [2023-11-19 07:47:45,288 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:47:45,289 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:47:45,290 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:47:45,290 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:47:45,291 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:45" (1/1) ... [2023-11-19 07:47:45,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:47:45,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1f33e-9b35-4f45-86cd-60f9427c2fa1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:45,342 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1f33e-9b35-4f45-86cd-60f9427c2fa1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:45,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f1f33e-9b35-4f45-86cd-60f9427c2fa1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:47:45,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:47:45,381 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-19 07:47:45,381 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-19 07:47:45,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:47:45,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:47:45,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:47:45,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:47:45,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:47:45,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:47:45,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:47:45,385 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:47:45,620 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:47:45,623 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:47:46,033 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:47:46,158 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:47:46,158 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:47:46,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:46 BoogieIcfgContainer [2023-11-19 07:47:46,176 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:47:46,179 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:47:46,179 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:47:46,183 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:47:46,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:47:44" (1/3) ... [2023-11-19 07:47:46,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d562231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:47:46, skipping insertion in model container [2023-11-19 07:47:46,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:45" (2/3) ... [2023-11-19 07:47:46,185 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d562231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:47:46, skipping insertion in model container [2023-11-19 07:47:46,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:46" (3/3) ... [2023-11-19 07:47:46,186 INFO L112 eAbstractionObserver]: Analyzing ICFG 11_fmaxsymopt.i [2023-11-19 07:47:46,202 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:47:46,214 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:47:46,215 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-19 07:47:46,216 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:47:46,295 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:47:46,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 113 transitions, 230 flow [2023-11-19 07:47:46,428 INFO L124 PetriNetUnfolderBase]: 10/124 cut-off events. [2023-11-19 07:47:46,429 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:47:46,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 124 events. 10/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 196 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 92. Up to 4 conditions per place. [2023-11-19 07:47:46,438 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 113 transitions, 230 flow [2023-11-19 07:47:46,444 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 113 transitions, 230 flow [2023-11-19 07:47:46,449 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:47:46,464 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 113 transitions, 230 flow [2023-11-19 07:47:46,466 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 113 transitions, 230 flow [2023-11-19 07:47:46,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 113 transitions, 230 flow [2023-11-19 07:47:46,497 INFO L124 PetriNetUnfolderBase]: 10/124 cut-off events. [2023-11-19 07:47:46,497 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:47:46,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 124 events. 10/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 196 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 92. Up to 4 conditions per place. [2023-11-19 07:47:46,502 INFO L119 LiptonReduction]: Number of co-enabled transitions 2212 [2023-11-19 07:47:51,305 INFO L134 LiptonReduction]: Checked pairs total: 1931 [2023-11-19 07:47:51,305 INFO L136 LiptonReduction]: Total number of compositions: 129 [2023-11-19 07:47:51,322 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:47:51,329 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@695f51e3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:47:51,330 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-11-19 07:47:51,335 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:47:51,336 INFO L124 PetriNetUnfolderBase]: 1/9 cut-off events. [2023-11-19 07:47:51,336 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:47:51,336 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:51,337 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:47:51,337 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-19 07:47:51,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:51,343 INFO L85 PathProgramCache]: Analyzing trace with hash 630766698, now seen corresponding path program 1 times [2023-11-19 07:47:51,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:51,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005338059] [2023-11-19 07:47:51,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:51,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:51,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:51,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:51,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:51,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005338059] [2023-11-19 07:47:51,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005338059] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:51,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:51,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:47:51,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18697565] [2023-11-19 07:47:51,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:51,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:47:51,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:51,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:47:51,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:47:51,692 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 242 [2023-11-19 07:47:51,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 21 transitions, 46 flow. Second operand has 2 states, 2 states have (on average 95.5) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:51,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:51,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 242 [2023-11-19 07:47:51,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:51,736 INFO L124 PetriNetUnfolderBase]: 7/19 cut-off events. [2023-11-19 07:47:51,736 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:47:51,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 19 events. 7/19 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 23 event pairs, 4 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 30. Up to 19 conditions per place. [2023-11-19 07:47:51,738 INFO L140 encePairwiseOnDemand]: 229/242 looper letters, 7 selfloop transitions, 0 changer transitions 0/8 dead transitions. [2023-11-19 07:47:51,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 11 places, 8 transitions, 34 flow [2023-11-19 07:47:51,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:47:51,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:47:51,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 206 transitions. [2023-11-19 07:47:51,758 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4256198347107438 [2023-11-19 07:47:51,758 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 206 transitions. [2023-11-19 07:47:51,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 206 transitions. [2023-11-19 07:47:51,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:51,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 206 transitions. [2023-11-19 07:47:51,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 103.0) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:51,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:51,775 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:51,777 INFO L175 Difference]: Start difference. First operand has 23 places, 21 transitions, 46 flow. Second operand 2 states and 206 transitions. [2023-11-19 07:47:51,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 11 places, 8 transitions, 34 flow [2023-11-19 07:47:51,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 8 transitions, 34 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:47:51,781 INFO L231 Difference]: Finished difference. Result has 11 places, 8 transitions, 20 flow [2023-11-19 07:47:51,782 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=20, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=20, PETRI_PLACES=11, PETRI_TRANSITIONS=8} [2023-11-19 07:47:51,786 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, -12 predicate places. [2023-11-19 07:47:51,786 INFO L495 AbstractCegarLoop]: Abstraction has has 11 places, 8 transitions, 20 flow [2023-11-19 07:47:51,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 95.5) internal successors, (191), 2 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:51,786 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:51,786 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-19 07:47:51,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:47:51,787 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-19 07:47:51,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:51,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1921165768, now seen corresponding path program 1 times [2023-11-19 07:47:51,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:51,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363115417] [2023-11-19 07:47:51,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:51,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:51,824 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:47:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:51,883 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:47:51,884 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:47:51,886 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2023-11-19 07:47:51,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2023-11-19 07:47:51,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2023-11-19 07:47:51,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2023-11-19 07:47:51,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2023-11-19 07:47:51,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2023-11-19 07:47:51,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2023-11-19 07:47:51,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2023-11-19 07:47:51,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2023-11-19 07:47:51,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2023-11-19 07:47:51,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2023-11-19 07:47:51,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2023-11-19 07:47:51,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2023-11-19 07:47:51,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2023-11-19 07:47:51,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2023-11-19 07:47:51,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2023-11-19 07:47:51,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2023-11-19 07:47:51,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2023-11-19 07:47:51,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2023-11-19 07:47:51,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2023-11-19 07:47:51,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2023-11-19 07:47:51,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2023-11-19 07:47:51,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2023-11-19 07:47:51,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2023-11-19 07:47:51,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2023-11-19 07:47:51,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:47:51,910 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 07:47:51,913 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:47:51,914 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-19 07:47:51,956 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:47:51,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 181 places, 193 transitions, 396 flow [2023-11-19 07:47:52,040 INFO L124 PetriNetUnfolderBase]: 19/217 cut-off events. [2023-11-19 07:47:52,042 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:47:52,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 217 events. 19/217 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 592 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 171. Up to 6 conditions per place. [2023-11-19 07:47:52,048 INFO L82 GeneralOperation]: Start removeDead. Operand has 181 places, 193 transitions, 396 flow [2023-11-19 07:47:52,052 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 181 places, 193 transitions, 396 flow [2023-11-19 07:47:52,053 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:47:52,053 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 181 places, 193 transitions, 396 flow [2023-11-19 07:47:52,053 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 181 places, 193 transitions, 396 flow [2023-11-19 07:47:52,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 181 places, 193 transitions, 396 flow [2023-11-19 07:47:52,113 INFO L124 PetriNetUnfolderBase]: 19/217 cut-off events. [2023-11-19 07:47:52,113 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:47:52,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 217 events. 19/217 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 592 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 171. Up to 6 conditions per place. [2023-11-19 07:47:52,142 INFO L119 LiptonReduction]: Number of co-enabled transitions 17064 [2023-11-19 07:47:55,754 INFO L134 LiptonReduction]: Checked pairs total: 46228 [2023-11-19 07:47:55,755 INFO L136 LiptonReduction]: Total number of compositions: 149 [2023-11-19 07:47:55,759 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:47:55,761 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@695f51e3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:47:55,766 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2023-11-19 07:47:55,770 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:47:55,771 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-11-19 07:47:55,771 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:47:55,771 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:55,772 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:47:55,773 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-19 07:47:55,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:55,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1035489230, now seen corresponding path program 1 times [2023-11-19 07:47:55,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:55,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938263357] [2023-11-19 07:47:55,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:55,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:55,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:55,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:55,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938263357] [2023-11-19 07:47:55,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938263357] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:55,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:55,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:47:55,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020518295] [2023-11-19 07:47:55,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:55,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:47:55,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:55,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:47:55,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:47:55,856 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 342 [2023-11-19 07:47:55,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 76 transitions, 162 flow. Second operand has 2 states, 2 states have (on average 157.5) internal successors, (315), 2 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:55,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:55,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 342 [2023-11-19 07:47:55,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:56,061 INFO L124 PetriNetUnfolderBase]: 339/831 cut-off events. [2023-11-19 07:47:56,061 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2023-11-19 07:47:56,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1411 conditions, 831 events. 339/831 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 5310 event pairs, 257 based on Foata normal form. 34/724 useless extension candidates. Maximal degree in co-relation 446. Up to 548 conditions per place. [2023-11-19 07:47:56,070 INFO L140 encePairwiseOnDemand]: 323/342 looper letters, 24 selfloop transitions, 0 changer transitions 0/57 dead transitions. [2023-11-19 07:47:56,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 57 transitions, 172 flow [2023-11-19 07:47:56,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:47:56,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:47:56,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 353 transitions. [2023-11-19 07:47:56,076 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5160818713450293 [2023-11-19 07:47:56,076 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 353 transitions. [2023-11-19 07:47:56,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 353 transitions. [2023-11-19 07:47:56,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:56,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 353 transitions. [2023-11-19 07:47:56,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 176.5) internal successors, (353), 2 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:56,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 342.0) internal successors, (1026), 3 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:56,085 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 342.0) internal successors, (1026), 3 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:56,085 INFO L175 Difference]: Start difference. First operand has 75 places, 76 transitions, 162 flow. Second operand 2 states and 353 transitions. [2023-11-19 07:47:56,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 57 transitions, 172 flow [2023-11-19 07:47:56,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 57 transitions, 172 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:47:56,089 INFO L231 Difference]: Finished difference. Result has 59 places, 57 transitions, 124 flow [2023-11-19 07:47:56,089 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=124, PETRI_PLACES=59, PETRI_TRANSITIONS=57} [2023-11-19 07:47:56,090 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -16 predicate places. [2023-11-19 07:47:56,090 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 57 transitions, 124 flow [2023-11-19 07:47:56,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 157.5) internal successors, (315), 2 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:56,091 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:56,091 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:56,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:47:56,092 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-19 07:47:56,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:56,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1327233294, now seen corresponding path program 1 times [2023-11-19 07:47:56,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:56,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278939298] [2023-11-19 07:47:56,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:56,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:56,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:56,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:56,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278939298] [2023-11-19 07:47:56,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278939298] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:56,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:56,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:47:56,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618680250] [2023-11-19 07:47:56,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:56,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:47:56,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:56,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:47:56,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:47:56,246 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 342 [2023-11-19 07:47:56,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 57 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:56,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:56,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 342 [2023-11-19 07:47:56,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:56,454 INFO L124 PetriNetUnfolderBase]: 399/1049 cut-off events. [2023-11-19 07:47:56,454 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2023-11-19 07:47:56,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1736 conditions, 1049 events. 399/1049 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7001 event pairs, 223 based on Foata normal form. 0/888 useless extension candidates. Maximal degree in co-relation 1731. Up to 538 conditions per place. [2023-11-19 07:47:56,465 INFO L140 encePairwiseOnDemand]: 339/342 looper letters, 36 selfloop transitions, 2 changer transitions 0/71 dead transitions. [2023-11-19 07:47:56,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 71 transitions, 233 flow [2023-11-19 07:47:56,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:47:56,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:47:56,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 483 transitions. [2023-11-19 07:47:56,469 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47076023391812866 [2023-11-19 07:47:56,469 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 483 transitions. [2023-11-19 07:47:56,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 483 transitions. [2023-11-19 07:47:56,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:56,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 483 transitions. [2023-11-19 07:47:56,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:56,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:56,478 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:56,478 INFO L175 Difference]: Start difference. First operand has 59 places, 57 transitions, 124 flow. Second operand 3 states and 483 transitions. [2023-11-19 07:47:56,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 71 transitions, 233 flow [2023-11-19 07:47:56,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 71 transitions, 233 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:47:56,481 INFO L231 Difference]: Finished difference. Result has 62 places, 58 transitions, 136 flow [2023-11-19 07:47:56,482 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=62, PETRI_TRANSITIONS=58} [2023-11-19 07:47:56,483 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -13 predicate places. [2023-11-19 07:47:56,483 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 58 transitions, 136 flow [2023-11-19 07:47:56,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:56,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:56,484 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:47:56,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:47:56,485 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-19 07:47:56,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:56,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1312028007, now seen corresponding path program 1 times [2023-11-19 07:47:56,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:56,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277681969] [2023-11-19 07:47:56,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:56,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:47:56,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:47:56,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:47:56,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277681969] [2023-11-19 07:47:56,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277681969] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:47:56,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:47:56,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:47:56,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331607905] [2023-11-19 07:47:56,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:47:56,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:47:56,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:47:56,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:47:56,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:47:57,118 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 342 [2023-11-19 07:47:57,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 136 flow. Second operand has 6 states, 6 states have (on average 144.66666666666666) internal successors, (868), 6 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:57,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:47:57,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 342 [2023-11-19 07:47:57,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:47:57,472 INFO L124 PetriNetUnfolderBase]: 662/1423 cut-off events. [2023-11-19 07:47:57,473 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2023-11-19 07:47:57,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2675 conditions, 1423 events. 662/1423 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 9351 event pairs, 302 based on Foata normal form. 44/1318 useless extension candidates. Maximal degree in co-relation 2668. Up to 637 conditions per place. [2023-11-19 07:47:57,490 INFO L140 encePairwiseOnDemand]: 336/342 looper letters, 71 selfloop transitions, 6 changer transitions 0/105 dead transitions. [2023-11-19 07:47:57,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 105 transitions, 404 flow [2023-11-19 07:47:57,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:47:57,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:47:57,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 935 transitions. [2023-11-19 07:47:57,496 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45565302144249514 [2023-11-19 07:47:57,496 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 935 transitions. [2023-11-19 07:47:57,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 935 transitions. [2023-11-19 07:47:57,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:47:57,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 935 transitions. [2023-11-19 07:47:57,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 155.83333333333334) internal successors, (935), 6 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:57,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 342.0) internal successors, (2394), 7 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:57,508 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 342.0) internal successors, (2394), 7 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:57,509 INFO L175 Difference]: Start difference. First operand has 62 places, 58 transitions, 136 flow. Second operand 6 states and 935 transitions. [2023-11-19 07:47:57,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 105 transitions, 404 flow [2023-11-19 07:47:57,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 105 transitions, 402 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:47:57,513 INFO L231 Difference]: Finished difference. Result has 65 places, 57 transitions, 144 flow [2023-11-19 07:47:57,513 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=144, PETRI_PLACES=65, PETRI_TRANSITIONS=57} [2023-11-19 07:47:57,514 INFO L281 CegarLoopForPetriNet]: 75 programPoint places, -10 predicate places. [2023-11-19 07:47:57,515 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 57 transitions, 144 flow [2023-11-19 07:47:57,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 144.66666666666666) internal successors, (868), 6 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:47:57,516 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:47:57,516 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-11-19 07:47:57,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:47:57,517 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-19 07:47:57,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:47:57,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1455494265, now seen corresponding path program 1 times [2023-11-19 07:47:57,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:47:57,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930417924] [2023-11-19 07:47:57,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:47:57,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:47:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:57,544 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:47:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:47:57,575 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:47:57,575 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:47:57,575 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2023-11-19 07:47:57,575 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2023-11-19 07:47:57,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2023-11-19 07:47:57,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2023-11-19 07:47:57,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2023-11-19 07:47:57,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2023-11-19 07:47:57,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2023-11-19 07:47:57,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2023-11-19 07:47:57,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2023-11-19 07:47:57,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2023-11-19 07:47:57,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2023-11-19 07:47:57,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2023-11-19 07:47:57,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2023-11-19 07:47:57,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2023-11-19 07:47:57,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2023-11-19 07:47:57,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2023-11-19 07:47:57,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2023-11-19 07:47:57,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2023-11-19 07:47:57,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2023-11-19 07:47:57,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2023-11-19 07:47:57,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2023-11-19 07:47:57,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2023-11-19 07:47:57,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2023-11-19 07:47:57,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2023-11-19 07:47:57,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2023-11-19 07:47:57,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2023-11-19 07:47:57,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2023-11-19 07:47:57,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2023-11-19 07:47:57,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2023-11-19 07:47:57,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2023-11-19 07:47:57,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2023-11-19 07:47:57,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2023-11-19 07:47:57,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2023-11-19 07:47:57,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2023-11-19 07:47:57,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2023-11-19 07:47:57,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2023-11-19 07:47:57,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2023-11-19 07:47:57,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:47:57,586 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 07:47:57,587 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:47:57,587 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-19 07:47:57,639 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:47:57,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 255 places, 273 transitions, 564 flow [2023-11-19 07:47:57,702 INFO L124 PetriNetUnfolderBase]: 28/310 cut-off events. [2023-11-19 07:47:57,702 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-19 07:47:57,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 323 conditions, 310 events. 28/310 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1075 event pairs, 0 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 250. Up to 8 conditions per place. [2023-11-19 07:47:57,711 INFO L82 GeneralOperation]: Start removeDead. Operand has 255 places, 273 transitions, 564 flow [2023-11-19 07:47:57,718 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 255 places, 273 transitions, 564 flow [2023-11-19 07:47:57,718 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:47:57,718 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 255 places, 273 transitions, 564 flow [2023-11-19 07:47:57,719 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 255 places, 273 transitions, 564 flow [2023-11-19 07:47:57,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 255 places, 273 transitions, 564 flow [2023-11-19 07:47:57,789 INFO L124 PetriNetUnfolderBase]: 28/310 cut-off events. [2023-11-19 07:47:57,789 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-19 07:47:57,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 323 conditions, 310 events. 28/310 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1075 event pairs, 0 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 250. Up to 8 conditions per place. [2023-11-19 07:47:57,821 INFO L119 LiptonReduction]: Number of co-enabled transitions 44556 [2023-11-19 07:48:02,812 INFO L134 LiptonReduction]: Checked pairs total: 127456 [2023-11-19 07:48:02,813 INFO L136 LiptonReduction]: Total number of compositions: 211 [2023-11-19 07:48:02,815 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:48:02,815 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@695f51e3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:48:02,816 INFO L358 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2023-11-19 07:48:02,818 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:48:02,818 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-11-19 07:48:02,818 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:48:02,818 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:02,818 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:48:02,819 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-19 07:48:02,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:02,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1569932783, now seen corresponding path program 1 times [2023-11-19 07:48:02,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:02,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442140541] [2023-11-19 07:48:02,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:02,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:02,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:02,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:02,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442140541] [2023-11-19 07:48:02,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442140541] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:02,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:02,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:48:02,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000833731] [2023-11-19 07:48:02,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:02,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:48:02,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:02,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:48:02,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:48:02,843 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 484 [2023-11-19 07:48:02,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 111 transitions, 240 flow. Second operand has 2 states, 2 states have (on average 219.5) internal successors, (439), 2 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:02,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:48:02,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 484 [2023-11-19 07:48:02,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:48:04,369 INFO L124 PetriNetUnfolderBase]: 5703/10385 cut-off events. [2023-11-19 07:48:04,369 INFO L125 PetriNetUnfolderBase]: For 715/715 co-relation queries the response was YES. [2023-11-19 07:48:04,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18598 conditions, 10385 events. 5703/10385 cut-off events. For 715/715 co-relation queries the response was YES. Maximal size of possible extension queue 532. Compared 84749 event pairs, 4463 based on Foata normal form. 541/9350 useless extension candidates. Maximal degree in co-relation 1417. Up to 7804 conditions per place. [2023-11-19 07:48:04,483 INFO L140 encePairwiseOnDemand]: 456/484 looper letters, 35 selfloop transitions, 0 changer transitions 0/83 dead transitions. [2023-11-19 07:48:04,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 83 transitions, 254 flow [2023-11-19 07:48:04,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:48:04,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:48:04,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 497 transitions. [2023-11-19 07:48:04,490 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5134297520661157 [2023-11-19 07:48:04,490 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 497 transitions. [2023-11-19 07:48:04,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 497 transitions. [2023-11-19 07:48:04,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:48:04,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 497 transitions. [2023-11-19 07:48:04,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 248.5) internal successors, (497), 2 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:04,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 484.0) internal successors, (1452), 3 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:04,498 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 484.0) internal successors, (1452), 3 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:04,498 INFO L175 Difference]: Start difference. First operand has 109 places, 111 transitions, 240 flow. Second operand 2 states and 497 transitions. [2023-11-19 07:48:04,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 83 transitions, 254 flow [2023-11-19 07:48:04,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 83 transitions, 252 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-11-19 07:48:04,507 INFO L231 Difference]: Finished difference. Result has 85 places, 83 transitions, 182 flow [2023-11-19 07:48:04,508 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=182, PETRI_PLACES=85, PETRI_TRANSITIONS=83} [2023-11-19 07:48:04,510 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -24 predicate places. [2023-11-19 07:48:04,510 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 83 transitions, 182 flow [2023-11-19 07:48:04,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 219.5) internal successors, (439), 2 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:04,511 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:04,511 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:04,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:48:04,512 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-19 07:48:04,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:04,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1171925458, now seen corresponding path program 1 times [2023-11-19 07:48:04,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:04,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549812429] [2023-11-19 07:48:04,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:04,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:04,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:04,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:04,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549812429] [2023-11-19 07:48:04,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549812429] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:04,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:04,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:48:04,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204925030] [2023-11-19 07:48:04,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:04,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:48:04,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:04,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:48:04,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:04,605 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 484 [2023-11-19 07:48:04,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 83 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 211.66666666666666) internal successors, (635), 3 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:04,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:48:04,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 484 [2023-11-19 07:48:04,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:48:06,341 INFO L124 PetriNetUnfolderBase]: 6832/12523 cut-off events. [2023-11-19 07:48:06,341 INFO L125 PetriNetUnfolderBase]: For 399/399 co-relation queries the response was YES. [2023-11-19 07:48:06,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22262 conditions, 12523 events. 6832/12523 cut-off events. For 399/399 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 103572 event pairs, 3920 based on Foata normal form. 0/10462 useless extension candidates. Maximal degree in co-relation 22256. Up to 7765 conditions per place. [2023-11-19 07:48:06,461 INFO L140 encePairwiseOnDemand]: 481/484 looper letters, 58 selfloop transitions, 2 changer transitions 0/108 dead transitions. [2023-11-19 07:48:06,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 108 transitions, 362 flow [2023-11-19 07:48:06,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:48:06,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:48:06,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 691 transitions. [2023-11-19 07:48:06,465 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4758953168044077 [2023-11-19 07:48:06,466 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 691 transitions. [2023-11-19 07:48:06,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 691 transitions. [2023-11-19 07:48:06,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:48:06,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 691 transitions. [2023-11-19 07:48:06,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:06,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:06,475 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:06,475 INFO L175 Difference]: Start difference. First operand has 85 places, 83 transitions, 182 flow. Second operand 3 states and 691 transitions. [2023-11-19 07:48:06,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 108 transitions, 362 flow [2023-11-19 07:48:06,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 108 transitions, 362 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:48:06,481 INFO L231 Difference]: Finished difference. Result has 88 places, 84 transitions, 194 flow [2023-11-19 07:48:06,481 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=88, PETRI_TRANSITIONS=84} [2023-11-19 07:48:06,484 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -21 predicate places. [2023-11-19 07:48:06,484 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 84 transitions, 194 flow [2023-11-19 07:48:06,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.66666666666666) internal successors, (635), 3 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:06,488 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:06,488 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:06,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:48:06,488 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-19 07:48:06,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:06,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1161642722, now seen corresponding path program 1 times [2023-11-19 07:48:06,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:06,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145257216] [2023-11-19 07:48:06,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:06,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:06,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:06,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:06,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145257216] [2023-11-19 07:48:06,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145257216] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:06,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:06,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:48:06,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765304714] [2023-11-19 07:48:06,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:06,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:48:06,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:06,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:48:06,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:48:07,192 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 484 [2023-11-19 07:48:07,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 84 transitions, 194 flow. Second operand has 6 states, 6 states have (on average 206.66666666666666) internal successors, (1240), 6 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:07,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:48:07,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 484 [2023-11-19 07:48:07,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:48:09,636 INFO L124 PetriNetUnfolderBase]: 11521/18701 cut-off events. [2023-11-19 07:48:09,636 INFO L125 PetriNetUnfolderBase]: For 1530/1530 co-relation queries the response was YES. [2023-11-19 07:48:09,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36248 conditions, 18701 events. 11521/18701 cut-off events. For 1530/1530 co-relation queries the response was YES. Maximal size of possible extension queue 804. Compared 146818 event pairs, 5431 based on Foata normal form. 444/16982 useless extension candidates. Maximal degree in co-relation 36240. Up to 9412 conditions per place. [2023-11-19 07:48:09,813 INFO L140 encePairwiseOnDemand]: 478/484 looper letters, 126 selfloop transitions, 6 changer transitions 0/175 dead transitions. [2023-11-19 07:48:09,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 175 transitions, 680 flow [2023-11-19 07:48:09,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:48:09,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:48:09,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1362 transitions. [2023-11-19 07:48:09,820 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4690082644628099 [2023-11-19 07:48:09,821 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1362 transitions. [2023-11-19 07:48:09,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1362 transitions. [2023-11-19 07:48:09,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:48:09,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1362 transitions. [2023-11-19 07:48:09,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 227.0) internal successors, (1362), 6 states have internal predecessors, (1362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:09,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:09,837 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:09,838 INFO L175 Difference]: Start difference. First operand has 88 places, 84 transitions, 194 flow. Second operand 6 states and 1362 transitions. [2023-11-19 07:48:09,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 175 transitions, 680 flow [2023-11-19 07:48:09,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 175 transitions, 678 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:48:09,849 INFO L231 Difference]: Finished difference. Result has 91 places, 83 transitions, 202 flow [2023-11-19 07:48:09,849 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=202, PETRI_PLACES=91, PETRI_TRANSITIONS=83} [2023-11-19 07:48:09,851 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -18 predicate places. [2023-11-19 07:48:09,851 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 83 transitions, 202 flow [2023-11-19 07:48:09,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 206.66666666666666) internal successors, (1240), 6 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:09,852 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:09,852 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:09,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:48:09,853 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-19 07:48:09,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:09,853 INFO L85 PathProgramCache]: Analyzing trace with hash -556584255, now seen corresponding path program 1 times [2023-11-19 07:48:09,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:09,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010419171] [2023-11-19 07:48:09,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:09,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:09,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:48:09,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:09,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010419171] [2023-11-19 07:48:09,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010419171] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:09,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:09,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:48:09,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070595186] [2023-11-19 07:48:09,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:09,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:48:09,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:09,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:48:09,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:09,925 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 484 [2023-11-19 07:48:09,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 83 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 212.0) internal successors, (636), 3 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:09,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:48:09,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 484 [2023-11-19 07:48:09,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:48:11,664 INFO L124 PetriNetUnfolderBase]: 8159/15305 cut-off events. [2023-11-19 07:48:11,664 INFO L125 PetriNetUnfolderBase]: For 2410/2410 co-relation queries the response was YES. [2023-11-19 07:48:11,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28453 conditions, 15305 events. 8159/15305 cut-off events. For 2410/2410 co-relation queries the response was YES. Maximal size of possible extension queue 621. Compared 131510 event pairs, 5021 based on Foata normal form. 0/13243 useless extension candidates. Maximal degree in co-relation 28445. Up to 9304 conditions per place. [2023-11-19 07:48:11,823 INFO L140 encePairwiseOnDemand]: 481/484 looper letters, 59 selfloop transitions, 2 changer transitions 0/108 dead transitions. [2023-11-19 07:48:11,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 108 transitions, 391 flow [2023-11-19 07:48:11,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:48:11,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:48:11,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 690 transitions. [2023-11-19 07:48:11,827 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47520661157024796 [2023-11-19 07:48:11,827 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 690 transitions. [2023-11-19 07:48:11,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 690 transitions. [2023-11-19 07:48:11,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:48:11,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 690 transitions. [2023-11-19 07:48:11,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:11,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:11,837 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:11,837 INFO L175 Difference]: Start difference. First operand has 91 places, 83 transitions, 202 flow. Second operand 3 states and 690 transitions. [2023-11-19 07:48:11,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 108 transitions, 391 flow [2023-11-19 07:48:11,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 108 transitions, 375 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-19 07:48:11,843 INFO L231 Difference]: Finished difference. Result has 89 places, 84 transitions, 202 flow [2023-11-19 07:48:11,844 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=89, PETRI_TRANSITIONS=84} [2023-11-19 07:48:11,846 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -20 predicate places. [2023-11-19 07:48:11,847 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 84 transitions, 202 flow [2023-11-19 07:48:11,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 212.0) internal successors, (636), 3 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:11,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:11,848 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:11,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:48:11,853 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-19 07:48:11,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:11,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1957474717, now seen corresponding path program 1 times [2023-11-19 07:48:11,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:11,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919536541] [2023-11-19 07:48:11,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:11,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:11,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:48:11,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:11,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919536541] [2023-11-19 07:48:11,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919536541] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:11,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:11,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:48:11,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529371422] [2023-11-19 07:48:11,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:11,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:48:11,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:11,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:48:11,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:11,932 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 484 [2023-11-19 07:48:11,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 84 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 199.0) internal successors, (597), 3 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:11,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:48:11,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 484 [2023-11-19 07:48:11,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:48:17,898 INFO L124 PetriNetUnfolderBase]: 39429/59178 cut-off events. [2023-11-19 07:48:17,898 INFO L125 PetriNetUnfolderBase]: For 8605/8605 co-relation queries the response was YES. [2023-11-19 07:48:18,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122383 conditions, 59178 events. 39429/59178 cut-off events. For 8605/8605 co-relation queries the response was YES. Maximal size of possible extension queue 1974. Compared 460045 event pairs, 15119 based on Foata normal form. 0/55632 useless extension candidates. Maximal degree in co-relation 122374. Up to 33612 conditions per place. [2023-11-19 07:48:18,339 INFO L140 encePairwiseOnDemand]: 463/484 looper letters, 91 selfloop transitions, 15 changer transitions 0/133 dead transitions. [2023-11-19 07:48:18,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 133 transitions, 540 flow [2023-11-19 07:48:18,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:48:18,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:48:18,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 696 transitions. [2023-11-19 07:48:18,342 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4793388429752066 [2023-11-19 07:48:18,343 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 696 transitions. [2023-11-19 07:48:18,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 696 transitions. [2023-11-19 07:48:18,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:48:18,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 696 transitions. [2023-11-19 07:48:18,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:18,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:18,350 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:18,350 INFO L175 Difference]: Start difference. First operand has 89 places, 84 transitions, 202 flow. Second operand 3 states and 696 transitions. [2023-11-19 07:48:18,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 133 transitions, 540 flow [2023-11-19 07:48:18,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 133 transitions, 536 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:48:18,361 INFO L231 Difference]: Finished difference. Result has 92 places, 99 transitions, 332 flow [2023-11-19 07:48:18,361 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=92, PETRI_TRANSITIONS=99} [2023-11-19 07:48:18,362 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -17 predicate places. [2023-11-19 07:48:18,362 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 99 transitions, 332 flow [2023-11-19 07:48:18,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 199.0) internal successors, (597), 3 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:18,363 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:18,363 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:18,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:48:18,364 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-19 07:48:18,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:18,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1252584996, now seen corresponding path program 1 times [2023-11-19 07:48:18,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:18,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764008970] [2023-11-19 07:48:18,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:18,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:18,646 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:48:18,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:18,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764008970] [2023-11-19 07:48:18,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764008970] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:18,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:18,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:48:18,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343007208] [2023-11-19 07:48:18,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:18,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:48:18,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:18,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:48:18,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:48:18,881 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 484 [2023-11-19 07:48:18,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 99 transitions, 332 flow. Second operand has 6 states, 6 states have (on average 206.83333333333334) internal successors, (1241), 6 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:18,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:48:18,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 484 [2023-11-19 07:48:18,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:48:23,934 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1290] L714-3-->L718: Formula: (and (not (= (ite (= v_~m~0_127 1) 1 0) 0)) (= v_~m~0_126 0)) InVars {~m~0=v_~m~0_127} OutVars{thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1=|v_thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1_5|, ~m~0=v_~m~0_126, thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1_17|, #race~m~0=|v_#race~m~0_161|, thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1_13|} AuxVars[] AssignedVars[~m~0, thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1, #race~m~0, thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1, thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1][54], [thr1Thread3of3ForFork0InUse, 154#L731-5true, 193#L718true, Black: 263#(= |thr1Thread1of3ForFork0_findMax_~i~0#1| |thr1Thread1of3ForFork0_findMax_~offset#1|), 284#true, 119#L718true, Black: 275#(= |thr1Thread2of3ForFork0_findMax_~i~0#1| |thr1Thread2of3ForFork0_findMax_~offset#1|), 165#L719true, Black: 278#true, 280#(= |#race~max~0| 0), thr1Thread1of3ForFork0InUse, thr1Thread2of3ForFork0InUse, 258#true]) [2023-11-19 07:48:23,934 INFO L294 olderBase$Statistics]: this new event has 45 ancestors and is cut-off event [2023-11-19 07:48:23,934 INFO L297 olderBase$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-11-19 07:48:23,934 INFO L297 olderBase$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-11-19 07:48:23,934 INFO L297 olderBase$Statistics]: existing Event has 42 ancestors and is cut-off event [2023-11-19 07:48:24,177 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1290] L714-3-->L718: Formula: (and (not (= (ite (= v_~m~0_127 1) 1 0) 0)) (= v_~m~0_126 0)) InVars {~m~0=v_~m~0_127} OutVars{thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1=|v_thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1_5|, ~m~0=v_~m~0_126, thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1_17|, #race~m~0=|v_#race~m~0_161|, thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1_13|} AuxVars[] AssignedVars[~m~0, thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1, #race~m~0, thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1, thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1][54], [thr1Thread3of3ForFork0InUse, 154#L731-5true, 79#L719true, Black: 263#(= |thr1Thread1of3ForFork0_findMax_~i~0#1| |thr1Thread1of3ForFork0_findMax_~offset#1|), 284#true, 119#L718true, Black: 275#(= |thr1Thread2of3ForFork0_findMax_~i~0#1| |thr1Thread2of3ForFork0_findMax_~offset#1|), 165#L719true, Black: 278#true, 280#(= |#race~max~0| 0), thr1Thread1of3ForFork0InUse, thr1Thread2of3ForFork0InUse, 258#true]) [2023-11-19 07:48:24,178 INFO L294 olderBase$Statistics]: this new event has 46 ancestors and is cut-off event [2023-11-19 07:48:24,178 INFO L297 olderBase$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-11-19 07:48:24,178 INFO L297 olderBase$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-11-19 07:48:24,179 INFO L297 olderBase$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-11-19 07:48:24,750 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1290] L714-3-->L718: Formula: (and (not (= (ite (= v_~m~0_127 1) 1 0) 0)) (= v_~m~0_126 0)) InVars {~m~0=v_~m~0_127} OutVars{thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1=|v_thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1_5|, ~m~0=v_~m~0_126, thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1_17|, #race~m~0=|v_#race~m~0_161|, thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1_13|} AuxVars[] AssignedVars[~m~0, thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1, #race~m~0, thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1, thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1][54], [thr1Thread3of3ForFork0InUse, 193#L718true, Black: 263#(= |thr1Thread1of3ForFork0_findMax_~i~0#1| |thr1Thread1of3ForFork0_findMax_~offset#1|), 284#true, 119#L718true, 101#L731-4true, Black: 275#(= |thr1Thread2of3ForFork0_findMax_~i~0#1| |thr1Thread2of3ForFork0_findMax_~offset#1|), 165#L719true, Black: 278#true, 280#(= |#race~max~0| 0), thr1Thread1of3ForFork0InUse, thr1Thread2of3ForFork0InUse, 258#true]) [2023-11-19 07:48:24,750 INFO L294 olderBase$Statistics]: this new event has 48 ancestors and is cut-off event [2023-11-19 07:48:24,750 INFO L297 olderBase$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-11-19 07:48:24,750 INFO L297 olderBase$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-11-19 07:48:24,751 INFO L297 olderBase$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-11-19 07:48:24,871 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1290] L714-3-->L718: Formula: (and (not (= (ite (= v_~m~0_127 1) 1 0) 0)) (= v_~m~0_126 0)) InVars {~m~0=v_~m~0_127} OutVars{thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1=|v_thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1_5|, ~m~0=v_~m~0_126, thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1_17|, #race~m~0=|v_#race~m~0_161|, thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1_13|} AuxVars[] AssignedVars[~m~0, thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1, #race~m~0, thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1, thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1][54], [thr1Thread3of3ForFork0InUse, 154#L731-5true, 193#L718true, Black: 263#(= |thr1Thread1of3ForFork0_findMax_~i~0#1| |thr1Thread1of3ForFork0_findMax_~offset#1|), 284#true, 95#L720-5true, 119#L718true, Black: 275#(= |thr1Thread2of3ForFork0_findMax_~i~0#1| |thr1Thread2of3ForFork0_findMax_~offset#1|), Black: 278#true, 280#(= |#race~max~0| 0), thr1Thread1of3ForFork0InUse, thr1Thread2of3ForFork0InUse, 258#true]) [2023-11-19 07:48:24,871 INFO L294 olderBase$Statistics]: this new event has 48 ancestors and is cut-off event [2023-11-19 07:48:24,871 INFO L297 olderBase$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-11-19 07:48:24,871 INFO L297 olderBase$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-11-19 07:48:24,871 INFO L297 olderBase$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-11-19 07:48:24,946 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1290] L714-3-->L718: Formula: (and (not (= (ite (= v_~m~0_127 1) 1 0) 0)) (= v_~m~0_126 0)) InVars {~m~0=v_~m~0_127} OutVars{thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1=|v_thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1_5|, ~m~0=v_~m~0_126, thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1_17|, #race~m~0=|v_#race~m~0_161|, thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1_13|} AuxVars[] AssignedVars[~m~0, thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1, #race~m~0, thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1, thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1][54], [thr1Thread3of3ForFork0InUse, 79#L719true, Black: 263#(= |thr1Thread1of3ForFork0_findMax_~i~0#1| |thr1Thread1of3ForFork0_findMax_~offset#1|), 284#true, 119#L718true, 101#L731-4true, Black: 275#(= |thr1Thread2of3ForFork0_findMax_~i~0#1| |thr1Thread2of3ForFork0_findMax_~offset#1|), 165#L719true, Black: 278#true, 280#(= |#race~max~0| 0), thr1Thread1of3ForFork0InUse, thr1Thread2of3ForFork0InUse, 258#true]) [2023-11-19 07:48:24,946 INFO L294 olderBase$Statistics]: this new event has 49 ancestors and is cut-off event [2023-11-19 07:48:24,947 INFO L297 olderBase$Statistics]: existing Event has 49 ancestors and is cut-off event [2023-11-19 07:48:24,947 INFO L297 olderBase$Statistics]: existing Event has 49 ancestors and is cut-off event [2023-11-19 07:48:24,947 INFO L297 olderBase$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-11-19 07:48:25,022 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1290] L714-3-->L718: Formula: (and (not (= (ite (= v_~m~0_127 1) 1 0) 0)) (= v_~m~0_126 0)) InVars {~m~0=v_~m~0_127} OutVars{thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1=|v_thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1_5|, ~m~0=v_~m~0_126, thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1_17|, #race~m~0=|v_#race~m~0_161|, thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1_13|} AuxVars[] AssignedVars[~m~0, thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1, #race~m~0, thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1, thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1][54], [thr1Thread3of3ForFork0InUse, 154#L731-5true, 79#L719true, Black: 263#(= |thr1Thread1of3ForFork0_findMax_~i~0#1| |thr1Thread1of3ForFork0_findMax_~offset#1|), 284#true, 95#L720-5true, 119#L718true, Black: 275#(= |thr1Thread2of3ForFork0_findMax_~i~0#1| |thr1Thread2of3ForFork0_findMax_~offset#1|), Black: 278#true, 280#(= |#race~max~0| 0), thr1Thread1of3ForFork0InUse, thr1Thread2of3ForFork0InUse, 258#true]) [2023-11-19 07:48:25,023 INFO L294 olderBase$Statistics]: this new event has 49 ancestors and is cut-off event [2023-11-19 07:48:25,023 INFO L297 olderBase$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-11-19 07:48:25,023 INFO L297 olderBase$Statistics]: existing Event has 49 ancestors and is cut-off event [2023-11-19 07:48:25,023 INFO L297 olderBase$Statistics]: existing Event has 49 ancestors and is cut-off event [2023-11-19 07:48:25,023 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1290] L714-3-->L718: Formula: (and (not (= (ite (= v_~m~0_127 1) 1 0) 0)) (= v_~m~0_126 0)) InVars {~m~0=v_~m~0_127} OutVars{thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1=|v_thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1_5|, ~m~0=v_~m~0_126, thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1_17|, #race~m~0=|v_#race~m~0_161|, thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1_13|} AuxVars[] AssignedVars[~m~0, thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1, #race~m~0, thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1, thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1][54], [thr1Thread3of3ForFork0InUse, 154#L731-5true, 18#thr1EXITtrue, 193#L718true, Black: 263#(= |thr1Thread1of3ForFork0_findMax_~i~0#1| |thr1Thread1of3ForFork0_findMax_~offset#1|), 284#true, 119#L718true, Black: 275#(= |thr1Thread2of3ForFork0_findMax_~i~0#1| |thr1Thread2of3ForFork0_findMax_~offset#1|), Black: 278#true, 280#(= |#race~max~0| 0), thr1Thread1of3ForFork0InUse, thr1Thread2of3ForFork0InUse, 258#true]) [2023-11-19 07:48:25,024 INFO L294 olderBase$Statistics]: this new event has 49 ancestors and is cut-off event [2023-11-19 07:48:25,024 INFO L297 olderBase$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-11-19 07:48:25,024 INFO L297 olderBase$Statistics]: existing Event has 49 ancestors and is cut-off event [2023-11-19 07:48:25,024 INFO L297 olderBase$Statistics]: existing Event has 49 ancestors and is cut-off event [2023-11-19 07:48:25,158 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1290] L714-3-->L718: Formula: (and (not (= (ite (= v_~m~0_127 1) 1 0) 0)) (= v_~m~0_126 0)) InVars {~m~0=v_~m~0_127} OutVars{thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1=|v_thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1_5|, ~m~0=v_~m~0_126, thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1_17|, #race~m~0=|v_#race~m~0_161|, thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1_13|} AuxVars[] AssignedVars[~m~0, thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1, #race~m~0, thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1, thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1][54], [thr1Thread3of3ForFork0InUse, 154#L731-5true, 18#thr1EXITtrue, 79#L719true, Black: 263#(= |thr1Thread1of3ForFork0_findMax_~i~0#1| |thr1Thread1of3ForFork0_findMax_~offset#1|), 284#true, 119#L718true, Black: 275#(= |thr1Thread2of3ForFork0_findMax_~i~0#1| |thr1Thread2of3ForFork0_findMax_~offset#1|), Black: 278#true, 280#(= |#race~max~0| 0), thr1Thread1of3ForFork0InUse, thr1Thread2of3ForFork0InUse, 258#true]) [2023-11-19 07:48:25,158 INFO L294 olderBase$Statistics]: this new event has 50 ancestors and is cut-off event [2023-11-19 07:48:25,158 INFO L297 olderBase$Statistics]: existing Event has 50 ancestors and is cut-off event [2023-11-19 07:48:25,158 INFO L297 olderBase$Statistics]: existing Event has 50 ancestors and is cut-off event [2023-11-19 07:48:25,158 INFO L297 olderBase$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-11-19 07:48:25,209 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1290] L714-3-->L718: Formula: (and (not (= (ite (= v_~m~0_127 1) 1 0) 0)) (= v_~m~0_126 0)) InVars {~m~0=v_~m~0_127} OutVars{thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1=|v_thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1_5|, ~m~0=v_~m~0_126, thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1_17|, #race~m~0=|v_#race~m~0_161|, thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1_13|} AuxVars[] AssignedVars[~m~0, thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1, #race~m~0, thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1, thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1][54], [thr1Thread3of3ForFork0InUse, 193#L718true, Black: 263#(= |thr1Thread1of3ForFork0_findMax_~i~0#1| |thr1Thread1of3ForFork0_findMax_~offset#1|), 284#true, 95#L720-5true, 119#L718true, 101#L731-4true, Black: 275#(= |thr1Thread2of3ForFork0_findMax_~i~0#1| |thr1Thread2of3ForFork0_findMax_~offset#1|), Black: 278#true, 280#(= |#race~max~0| 0), thr1Thread1of3ForFork0InUse, thr1Thread2of3ForFork0InUse, 258#true]) [2023-11-19 07:48:25,209 INFO L294 olderBase$Statistics]: this new event has 51 ancestors and is cut-off event [2023-11-19 07:48:25,209 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2023-11-19 07:48:25,209 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2023-11-19 07:48:25,209 INFO L297 olderBase$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-11-19 07:48:25,312 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1290] L714-3-->L718: Formula: (and (not (= (ite (= v_~m~0_127 1) 1 0) 0)) (= v_~m~0_126 0)) InVars {~m~0=v_~m~0_127} OutVars{thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1=|v_thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1_5|, ~m~0=v_~m~0_126, thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1_17|, #race~m~0=|v_#race~m~0_161|, thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1_13|} AuxVars[] AssignedVars[~m~0, thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1, #race~m~0, thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1, thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1][54], [thr1Thread3of3ForFork0InUse, 79#L719true, Black: 263#(= |thr1Thread1of3ForFork0_findMax_~i~0#1| |thr1Thread1of3ForFork0_findMax_~offset#1|), 284#true, 95#L720-5true, 119#L718true, 101#L731-4true, Black: 275#(= |thr1Thread2of3ForFork0_findMax_~i~0#1| |thr1Thread2of3ForFork0_findMax_~offset#1|), Black: 278#true, 280#(= |#race~max~0| 0), thr1Thread1of3ForFork0InUse, thr1Thread2of3ForFork0InUse, 258#true]) [2023-11-19 07:48:25,312 INFO L294 olderBase$Statistics]: this new event has 52 ancestors and is cut-off event [2023-11-19 07:48:25,312 INFO L297 olderBase$Statistics]: existing Event has 52 ancestors and is cut-off event [2023-11-19 07:48:25,312 INFO L297 olderBase$Statistics]: existing Event has 52 ancestors and is cut-off event [2023-11-19 07:48:25,312 INFO L297 olderBase$Statistics]: existing Event has 49 ancestors and is cut-off event [2023-11-19 07:48:25,313 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1290] L714-3-->L718: Formula: (and (not (= (ite (= v_~m~0_127 1) 1 0) 0)) (= v_~m~0_126 0)) InVars {~m~0=v_~m~0_127} OutVars{thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1=|v_thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1_5|, ~m~0=v_~m~0_126, thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1_17|, #race~m~0=|v_#race~m~0_161|, thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1_13|} AuxVars[] AssignedVars[~m~0, thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1, #race~m~0, thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1, thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1][54], [thr1Thread3of3ForFork0InUse, 18#thr1EXITtrue, 193#L718true, Black: 263#(= |thr1Thread1of3ForFork0_findMax_~i~0#1| |thr1Thread1of3ForFork0_findMax_~offset#1|), 284#true, 119#L718true, 101#L731-4true, Black: 275#(= |thr1Thread2of3ForFork0_findMax_~i~0#1| |thr1Thread2of3ForFork0_findMax_~offset#1|), Black: 278#true, 280#(= |#race~max~0| 0), thr1Thread1of3ForFork0InUse, thr1Thread2of3ForFork0InUse, 258#true]) [2023-11-19 07:48:25,313 INFO L294 olderBase$Statistics]: this new event has 52 ancestors and is cut-off event [2023-11-19 07:48:25,313 INFO L297 olderBase$Statistics]: existing Event has 49 ancestors and is cut-off event [2023-11-19 07:48:25,313 INFO L297 olderBase$Statistics]: existing Event has 52 ancestors and is cut-off event [2023-11-19 07:48:25,313 INFO L297 olderBase$Statistics]: existing Event has 52 ancestors and is cut-off event [2023-11-19 07:48:25,389 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1290] L714-3-->L718: Formula: (and (not (= (ite (= v_~m~0_127 1) 1 0) 0)) (= v_~m~0_126 0)) InVars {~m~0=v_~m~0_127} OutVars{thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1=|v_thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1_5|, ~m~0=v_~m~0_126, thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1_17|, #race~m~0=|v_#race~m~0_161|, thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1_13|} AuxVars[] AssignedVars[~m~0, thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1, #race~m~0, thr1Thread1of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1, thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1][54], [thr1Thread3of3ForFork0InUse, 18#thr1EXITtrue, 79#L719true, Black: 263#(= |thr1Thread1of3ForFork0_findMax_~i~0#1| |thr1Thread1of3ForFork0_findMax_~offset#1|), 284#true, 119#L718true, 101#L731-4true, Black: 275#(= |thr1Thread2of3ForFork0_findMax_~i~0#1| |thr1Thread2of3ForFork0_findMax_~offset#1|), Black: 278#true, 280#(= |#race~max~0| 0), thr1Thread1of3ForFork0InUse, thr1Thread2of3ForFork0InUse, 258#true]) [2023-11-19 07:48:25,389 INFO L294 olderBase$Statistics]: this new event has 53 ancestors and is cut-off event [2023-11-19 07:48:25,389 INFO L297 olderBase$Statistics]: existing Event has 53 ancestors and is cut-off event [2023-11-19 07:48:25,389 INFO L297 olderBase$Statistics]: existing Event has 50 ancestors and is cut-off event [2023-11-19 07:48:25,389 INFO L297 olderBase$Statistics]: existing Event has 53 ancestors and is cut-off event [2023-11-19 07:48:25,864 INFO L124 PetriNetUnfolderBase]: 33801/54520 cut-off events. [2023-11-19 07:48:25,864 INFO L125 PetriNetUnfolderBase]: For 11168/11364 co-relation queries the response was YES. [2023-11-19 07:48:26,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117524 conditions, 54520 events. 33801/54520 cut-off events. For 11168/11364 co-relation queries the response was YES. Maximal size of possible extension queue 2020. Compared 478682 event pairs, 17969 based on Foata normal form. 996/51682 useless extension candidates. Maximal degree in co-relation 117514. Up to 30684 conditions per place. [2023-11-19 07:48:26,354 INFO L140 encePairwiseOnDemand]: 478/484 looper letters, 132 selfloop transitions, 6 changer transitions 0/194 dead transitions. [2023-11-19 07:48:26,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 194 transitions, 874 flow [2023-11-19 07:48:26,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:48:26,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:48:26,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1358 transitions. [2023-11-19 07:48:26,362 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46763085399449034 [2023-11-19 07:48:26,362 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1358 transitions. [2023-11-19 07:48:26,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1358 transitions. [2023-11-19 07:48:26,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:48:26,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1358 transitions. [2023-11-19 07:48:26,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 226.33333333333334) internal successors, (1358), 6 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:26,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:26,379 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:26,379 INFO L175 Difference]: Start difference. First operand has 92 places, 99 transitions, 332 flow. Second operand 6 states and 1358 transitions. [2023-11-19 07:48:26,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 194 transitions, 874 flow [2023-11-19 07:48:26,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 194 transitions, 836 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:48:26,474 INFO L231 Difference]: Finished difference. Result has 94 places, 98 transitions, 312 flow [2023-11-19 07:48:26,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=312, PETRI_PLACES=94, PETRI_TRANSITIONS=98} [2023-11-19 07:48:26,476 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -15 predicate places. [2023-11-19 07:48:26,477 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 98 transitions, 312 flow [2023-11-19 07:48:26,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 206.83333333333334) internal successors, (1241), 6 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:26,478 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:26,478 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-11-19 07:48:26,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:48:26,478 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-19 07:48:26,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:26,479 INFO L85 PathProgramCache]: Analyzing trace with hash -284481521, now seen corresponding path program 1 times [2023-11-19 07:48:26,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:26,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879909085] [2023-11-19 07:48:26,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:26,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:26,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:48:26,503 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:48:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:48:26,530 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:48:26,530 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:48:26,530 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2023-11-19 07:48:26,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2023-11-19 07:48:26,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2023-11-19 07:48:26,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2023-11-19 07:48:26,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2023-11-19 07:48:26,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2023-11-19 07:48:26,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2023-11-19 07:48:26,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2023-11-19 07:48:26,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2023-11-19 07:48:26,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2023-11-19 07:48:26,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2023-11-19 07:48:26,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2023-11-19 07:48:26,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2023-11-19 07:48:26,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2023-11-19 07:48:26,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2023-11-19 07:48:26,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2023-11-19 07:48:26,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2023-11-19 07:48:26,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2023-11-19 07:48:26,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2023-11-19 07:48:26,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2023-11-19 07:48:26,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2023-11-19 07:48:26,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2023-11-19 07:48:26,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2023-11-19 07:48:26,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2023-11-19 07:48:26,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2023-11-19 07:48:26,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2023-11-19 07:48:26,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2023-11-19 07:48:26,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2023-11-19 07:48:26,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2023-11-19 07:48:26,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2023-11-19 07:48:26,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2023-11-19 07:48:26,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2023-11-19 07:48:26,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2023-11-19 07:48:26,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2023-11-19 07:48:26,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2023-11-19 07:48:26,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2023-11-19 07:48:26,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2023-11-19 07:48:26,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2023-11-19 07:48:26,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2023-11-19 07:48:26,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2023-11-19 07:48:26,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2023-11-19 07:48:26,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2023-11-19 07:48:26,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2023-11-19 07:48:26,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2023-11-19 07:48:26,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2023-11-19 07:48:26,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2023-11-19 07:48:26,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2023-11-19 07:48:26,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2023-11-19 07:48:26,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2023-11-19 07:48:26,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 07:48:26,541 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:26,542 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:48:26,542 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-11-19 07:48:26,604 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:48:26,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 329 places, 353 transitions, 734 flow [2023-11-19 07:48:26,708 INFO L124 PetriNetUnfolderBase]: 37/403 cut-off events. [2023-11-19 07:48:26,708 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-19 07:48:26,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 403 events. 37/403 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1608 event pairs, 0 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 329. Up to 10 conditions per place. [2023-11-19 07:48:26,720 INFO L82 GeneralOperation]: Start removeDead. Operand has 329 places, 353 transitions, 734 flow [2023-11-19 07:48:26,728 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 329 places, 353 transitions, 734 flow [2023-11-19 07:48:26,729 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:48:26,729 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 329 places, 353 transitions, 734 flow [2023-11-19 07:48:26,729 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 329 places, 353 transitions, 734 flow [2023-11-19 07:48:26,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 329 places, 353 transitions, 734 flow [2023-11-19 07:48:26,836 INFO L124 PetriNetUnfolderBase]: 37/403 cut-off events. [2023-11-19 07:48:26,837 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-19 07:48:26,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 403 events. 37/403 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1608 event pairs, 0 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 329. Up to 10 conditions per place. [2023-11-19 07:48:26,880 INFO L119 LiptonReduction]: Number of co-enabled transitions 84688