./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89d12e2-9fd2-426d-adae-48b88808a5d4/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89d12e2-9fd2-426d-adae-48b88808a5d4/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_a89d12e2-9fd2-426d-adae-48b88808a5d4/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89d12e2-9fd2-426d-adae-48b88808a5d4/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89d12e2-9fd2-426d-adae-48b88808a5d4/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_a89d12e2-9fd2-426d-adae-48b88808a5d4/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 b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:56:49,311 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:56:49,385 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89d12e2-9fd2-426d-adae-48b88808a5d4/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:56:49,391 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:56:49,392 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:56:49,418 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:56:49,419 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:56:49,420 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:56:49,420 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:56:49,421 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:56:49,422 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:56:49,423 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:56:49,423 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:56:49,424 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:56:49,425 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:56:49,425 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:56:49,426 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:56:49,427 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:56:49,427 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:56:49,428 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:56:49,429 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:56:49,430 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:56:49,430 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:56:49,431 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:56:49,431 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:56:49,432 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:56:49,433 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:56:49,433 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:56:49,434 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:56:49,435 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:56:49,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:56:49,436 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:56:49,437 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:56:49,437 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:56:49,438 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:56:49,438 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:56:49,439 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:56:49,440 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:56:49,440 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:56:49,441 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:56:49,441 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:56:49,442 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_a89d12e2-9fd2-426d-adae-48b88808a5d4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89d12e2-9fd2-426d-adae-48b88808a5d4/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f [2023-11-19 07:56:49,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:56:49,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:56:49,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:56:49,791 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:56:49,793 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:56:49,794 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89d12e2-9fd2-426d-adae-48b88808a5d4/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2023-11-19 07:56:53,007 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:56:53,363 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:56:53,366 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89d12e2-9fd2-426d-adae-48b88808a5d4/sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2023-11-19 07:56:53,384 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89d12e2-9fd2-426d-adae-48b88808a5d4/bin/uautomizer-verify-uCwYo4JHxu/data/c7716798e/70b868ffbce74d6fbad0f18c7d9715c2/FLAGa1223a1b5 [2023-11-19 07:56:53,401 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89d12e2-9fd2-426d-adae-48b88808a5d4/bin/uautomizer-verify-uCwYo4JHxu/data/c7716798e/70b868ffbce74d6fbad0f18c7d9715c2 [2023-11-19 07:56:53,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:56:53,406 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:56:53,408 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:56:53,408 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:56:53,415 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:56:53,419 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:53" (1/1) ... [2023-11-19 07:56:53,421 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9aeee42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:53, skipping insertion in model container [2023-11-19 07:56:53,421 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:53" (1/1) ... [2023-11-19 07:56:53,492 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:56:54,076 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:56:54,101 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:56:54,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:56:54,285 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:56:54,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54 WrapperNode [2023-11-19 07:56:54,286 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:56:54,287 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:56:54,288 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:56:54,288 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:56:54,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54" (1/1) ... [2023-11-19 07:56:54,334 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54" (1/1) ... [2023-11-19 07:56:54,380 INFO L138 Inliner]: procedures = 263, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 90 [2023-11-19 07:56:54,381 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:56:54,382 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:56:54,382 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:56:54,382 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:56:54,394 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54" (1/1) ... [2023-11-19 07:56:54,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54" (1/1) ... [2023-11-19 07:56:54,399 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54" (1/1) ... [2023-11-19 07:56:54,400 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54" (1/1) ... [2023-11-19 07:56:54,412 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54" (1/1) ... [2023-11-19 07:56:54,419 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54" (1/1) ... [2023-11-19 07:56:54,422 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54" (1/1) ... [2023-11-19 07:56:54,424 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54" (1/1) ... [2023-11-19 07:56:54,454 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:56:54,455 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:56:54,456 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:56:54,456 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:56:54,457 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54" (1/1) ... [2023-11-19 07:56:54,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:56:54,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89d12e2-9fd2-426d-adae-48b88808a5d4/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:54,501 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89d12e2-9fd2-426d-adae-48b88808a5d4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:56:54,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a89d12e2-9fd2-426d-adae-48b88808a5d4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:56:54,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:56:54,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:56:54,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:56:54,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:56:54,589 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:56:54,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:56:54,590 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-19 07:56:54,590 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-19 07:56:54,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:56:54,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:56:54,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:56:54,594 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 07:56:54,796 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:56:54,799 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:56:55,124 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:56:55,136 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:56:55,136 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:56:55,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:55 BoogieIcfgContainer [2023-11-19 07:56:55,141 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:56:55,144 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:56:55,144 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:56:55,148 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:56:55,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:56:53" (1/3) ... [2023-11-19 07:56:55,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39da090c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:55, skipping insertion in model container [2023-11-19 07:56:55,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:54" (2/3) ... [2023-11-19 07:56:55,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39da090c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:55, skipping insertion in model container [2023-11-19 07:56:55,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:55" (3/3) ... [2023-11-19 07:56:55,152 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2023-11-19 07:56:55,162 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:56:55,176 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:56:55,176 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-11-19 07:56:55,176 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:56:55,256 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 07:56:55,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 102 transitions, 211 flow [2023-11-19 07:56:55,370 INFO L124 PetriNetUnfolderBase]: 0/101 cut-off events. [2023-11-19 07:56:55,371 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:56:55,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 101 events. 0/101 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-11-19 07:56:55,375 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 102 transitions, 211 flow [2023-11-19 07:56:55,381 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 93 transitions, 189 flow [2023-11-19 07:56:55,385 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:56:55,400 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 93 transitions, 189 flow [2023-11-19 07:56:55,403 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 93 transitions, 189 flow [2023-11-19 07:56:55,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 93 transitions, 189 flow [2023-11-19 07:56:55,466 INFO L124 PetriNetUnfolderBase]: 0/93 cut-off events. [2023-11-19 07:56:55,470 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:56:55,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 93 events. 0/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-19 07:56:55,474 INFO L119 LiptonReduction]: Number of co-enabled transitions 2030 [2023-11-19 07:56:58,637 INFO L134 LiptonReduction]: Checked pairs total: 11012 [2023-11-19 07:56:58,638 INFO L136 LiptonReduction]: Total number of compositions: 52 [2023-11-19 07:56:58,654 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:56:58,661 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;@7469bf80, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:56:58,662 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-19 07:56:58,667 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:56:58,668 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2023-11-19 07:56:58,668 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:56:58,668 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:56:58,669 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:58,669 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:56:58,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:58,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1299414202, now seen corresponding path program 1 times [2023-11-19 07:56:58,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:58,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832845639] [2023-11-19 07:56:58,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:58,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:58,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:59,559 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 07:56:59,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:59,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832845639] [2023-11-19 07:56:59,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832845639] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:59,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:59,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:56:59,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708434095] [2023-11-19 07:56:59,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:59,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:56:59,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:59,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:56:59,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:56:59,882 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 154 [2023-11-19 07:56:59,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 85 flow. Second operand has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 0 states have call successors, (0), 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 07:56:59,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:56:59,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 154 [2023-11-19 07:56:59,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:00,194 INFO L124 PetriNetUnfolderBase]: 182/525 cut-off events. [2023-11-19 07:57:00,194 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:57:00,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 927 conditions, 525 events. 182/525 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2550 event pairs, 83 based on Foata normal form. 0/499 useless extension candidates. Maximal degree in co-relation 918. Up to 289 conditions per place. [2023-11-19 07:57:00,209 INFO L140 encePairwiseOnDemand]: 143/154 looper letters, 51 selfloop transitions, 22 changer transitions 0/87 dead transitions. [2023-11-19 07:57:00,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 87 transitions, 323 flow [2023-11-19 07:57:00,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:57:00,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:57:00,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 566 transitions. [2023-11-19 07:57:00,236 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6125541125541125 [2023-11-19 07:57:00,238 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 566 transitions. [2023-11-19 07:57:00,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 566 transitions. [2023-11-19 07:57:00,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:00,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 566 transitions. [2023-11-19 07:57:00,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.33333333333333) internal successors, (566), 6 states have internal predecessors, (566), 0 states have call successors, (0), 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 07:57:00,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 154.0) internal successors, (1078), 7 states have internal predecessors, (1078), 0 states have call successors, (0), 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 07:57:00,264 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 154.0) internal successors, (1078), 7 states have internal predecessors, (1078), 0 states have call successors, (0), 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 07:57:00,266 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 85 flow. Second operand 6 states and 566 transitions. [2023-11-19 07:57:00,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 87 transitions, 323 flow [2023-11-19 07:57:00,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 87 transitions, 322 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:57:00,273 INFO L231 Difference]: Finished difference. Result has 54 places, 62 transitions, 234 flow [2023-11-19 07:57:00,276 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=234, PETRI_PLACES=54, PETRI_TRANSITIONS=62} [2023-11-19 07:57:00,281 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 9 predicate places. [2023-11-19 07:57:00,282 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 62 transitions, 234 flow [2023-11-19 07:57:00,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 0 states have call successors, (0), 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 07:57:00,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:00,283 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:00,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:57:00,284 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:57:00,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:00,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1455238989, now seen corresponding path program 1 times [2023-11-19 07:57:00,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:00,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853299483] [2023-11-19 07:57:00,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:00,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:00,652 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 07:57:00,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:00,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853299483] [2023-11-19 07:57:00,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853299483] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:00,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:00,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:57:00,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787280231] [2023-11-19 07:57:00,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:00,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:57:00,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:00,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:57:00,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:57:00,876 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 154 [2023-11-19 07:57:00,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 62 transitions, 234 flow. Second operand has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 0 states have call successors, (0), 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 07:57:00,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:00,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 154 [2023-11-19 07:57:00,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:01,124 INFO L124 PetriNetUnfolderBase]: 214/614 cut-off events. [2023-11-19 07:57:01,125 INFO L125 PetriNetUnfolderBase]: For 116/119 co-relation queries the response was YES. [2023-11-19 07:57:01,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1291 conditions, 614 events. 214/614 cut-off events. For 116/119 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3185 event pairs, 86 based on Foata normal form. 0/587 useless extension candidates. Maximal degree in co-relation 1278. Up to 348 conditions per place. [2023-11-19 07:57:01,131 INFO L140 encePairwiseOnDemand]: 143/154 looper letters, 60 selfloop transitions, 26 changer transitions 0/104 dead transitions. [2023-11-19 07:57:01,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 104 transitions, 508 flow [2023-11-19 07:57:01,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:57:01,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:57:01,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 562 transitions. [2023-11-19 07:57:01,134 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6082251082251082 [2023-11-19 07:57:01,134 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 562 transitions. [2023-11-19 07:57:01,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 562 transitions. [2023-11-19 07:57:01,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:01,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 562 transitions. [2023-11-19 07:57:01,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.66666666666667) internal successors, (562), 6 states have internal predecessors, (562), 0 states have call successors, (0), 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 07:57:01,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 154.0) internal successors, (1078), 7 states have internal predecessors, (1078), 0 states have call successors, (0), 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 07:57:01,141 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 154.0) internal successors, (1078), 7 states have internal predecessors, (1078), 0 states have call successors, (0), 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 07:57:01,141 INFO L175 Difference]: Start difference. First operand has 54 places, 62 transitions, 234 flow. Second operand 6 states and 562 transitions. [2023-11-19 07:57:01,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 104 transitions, 508 flow [2023-11-19 07:57:01,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 104 transitions, 508 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:57:01,154 INFO L231 Difference]: Finished difference. Result has 64 places, 83 transitions, 418 flow [2023-11-19 07:57:01,155 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=418, PETRI_PLACES=64, PETRI_TRANSITIONS=83} [2023-11-19 07:57:01,156 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 19 predicate places. [2023-11-19 07:57:01,156 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 83 transitions, 418 flow [2023-11-19 07:57:01,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 0 states have call successors, (0), 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 07:57:01,157 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:01,158 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:01,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:57:01,159 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:57:01,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:01,168 INFO L85 PathProgramCache]: Analyzing trace with hash -426896322, now seen corresponding path program 1 times [2023-11-19 07:57:01,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:01,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548047576] [2023-11-19 07:57:01,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:01,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:01,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:01,504 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 07:57:01,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:01,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548047576] [2023-11-19 07:57:01,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548047576] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:01,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:01,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:57:01,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282741820] [2023-11-19 07:57:01,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:01,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:57:01,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:01,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:57:01,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:57:01,640 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 154 [2023-11-19 07:57:01,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 83 transitions, 418 flow. Second operand has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:01,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:01,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 154 [2023-11-19 07:57:01,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:02,053 INFO L124 PetriNetUnfolderBase]: 451/1033 cut-off events. [2023-11-19 07:57:02,053 INFO L125 PetriNetUnfolderBase]: For 646/654 co-relation queries the response was YES. [2023-11-19 07:57:02,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2845 conditions, 1033 events. 451/1033 cut-off events. For 646/654 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 5236 event pairs, 157 based on Foata normal form. 0/987 useless extension candidates. Maximal degree in co-relation 2827. Up to 770 conditions per place. [2023-11-19 07:57:02,069 INFO L140 encePairwiseOnDemand]: 135/154 looper letters, 94 selfloop transitions, 69 changer transitions 0/170 dead transitions. [2023-11-19 07:57:02,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 170 transitions, 1052 flow [2023-11-19 07:57:02,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:57:02,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:57:02,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 545 transitions. [2023-11-19 07:57:02,072 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5898268398268398 [2023-11-19 07:57:02,072 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 545 transitions. [2023-11-19 07:57:02,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 545 transitions. [2023-11-19 07:57:02,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:02,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 545 transitions. [2023-11-19 07:57:02,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.83333333333333) internal successors, (545), 6 states have internal predecessors, (545), 0 states have call successors, (0), 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 07:57:02,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 154.0) internal successors, (1078), 7 states have internal predecessors, (1078), 0 states have call successors, (0), 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 07:57:02,079 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 154.0) internal successors, (1078), 7 states have internal predecessors, (1078), 0 states have call successors, (0), 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 07:57:02,079 INFO L175 Difference]: Start difference. First operand has 64 places, 83 transitions, 418 flow. Second operand 6 states and 545 transitions. [2023-11-19 07:57:02,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 170 transitions, 1052 flow [2023-11-19 07:57:02,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 170 transitions, 1052 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:57:02,091 INFO L231 Difference]: Finished difference. Result has 74 places, 146 transitions, 1004 flow [2023-11-19 07:57:02,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1004, PETRI_PLACES=74, PETRI_TRANSITIONS=146} [2023-11-19 07:57:02,093 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 29 predicate places. [2023-11-19 07:57:02,093 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 146 transitions, 1004 flow [2023-11-19 07:57:02,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:02,094 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:02,094 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:02,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:57:02,094 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:57:02,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:02,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1783097500, now seen corresponding path program 1 times [2023-11-19 07:57:02,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:02,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081362453] [2023-11-19 07:57:02,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:02,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:02,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:02,402 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 07:57:02,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:02,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081362453] [2023-11-19 07:57:02,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081362453] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:02,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:02,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:57:02,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835645887] [2023-11-19 07:57:02,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:02,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:57:02,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:02,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:57:02,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:57:02,532 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 154 [2023-11-19 07:57:02,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 146 transitions, 1004 flow. Second operand has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:02,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:02,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 154 [2023-11-19 07:57:02,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:02,871 INFO L124 PetriNetUnfolderBase]: 517/1171 cut-off events. [2023-11-19 07:57:02,871 INFO L125 PetriNetUnfolderBase]: For 1381/1394 co-relation queries the response was YES. [2023-11-19 07:57:02,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4096 conditions, 1171 events. 517/1171 cut-off events. For 1381/1394 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6197 event pairs, 150 based on Foata normal form. 0/1126 useless extension candidates. Maximal degree in co-relation 4073. Up to 921 conditions per place. [2023-11-19 07:57:02,885 INFO L140 encePairwiseOnDemand]: 139/154 looper letters, 150 selfloop transitions, 67 changer transitions 0/224 dead transitions. [2023-11-19 07:57:02,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 224 transitions, 1860 flow [2023-11-19 07:57:02,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:57:02,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:57:02,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 525 transitions. [2023-11-19 07:57:02,888 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5681818181818182 [2023-11-19 07:57:02,888 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 525 transitions. [2023-11-19 07:57:02,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 525 transitions. [2023-11-19 07:57:02,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:02,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 525 transitions. [2023-11-19 07:57:02,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.5) internal successors, (525), 6 states have internal predecessors, (525), 0 states have call successors, (0), 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 07:57:02,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 154.0) internal successors, (1078), 7 states have internal predecessors, (1078), 0 states have call successors, (0), 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 07:57:02,894 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 154.0) internal successors, (1078), 7 states have internal predecessors, (1078), 0 states have call successors, (0), 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 07:57:02,894 INFO L175 Difference]: Start difference. First operand has 74 places, 146 transitions, 1004 flow. Second operand 6 states and 525 transitions. [2023-11-19 07:57:02,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 224 transitions, 1860 flow [2023-11-19 07:57:02,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 224 transitions, 1796 flow, removed 32 selfloop flow, removed 0 redundant places. [2023-11-19 07:57:02,915 INFO L231 Difference]: Finished difference. Result has 84 places, 199 transitions, 1592 flow [2023-11-19 07:57:02,916 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=946, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1592, PETRI_PLACES=84, PETRI_TRANSITIONS=199} [2023-11-19 07:57:02,917 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 39 predicate places. [2023-11-19 07:57:02,917 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 199 transitions, 1592 flow [2023-11-19 07:57:02,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:57:02,917 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:02,918 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:02,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:57:02,918 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:57:02,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:02,919 INFO L85 PathProgramCache]: Analyzing trace with hash -581251951, now seen corresponding path program 1 times [2023-11-19 07:57:02,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:02,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560785916] [2023-11-19 07:57:02,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:02,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:03,441 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 07:57:03,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:03,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560785916] [2023-11-19 07:57:03,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560785916] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:03,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:03,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:57:03,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935787231] [2023-11-19 07:57:03,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:03,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:57:03,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:03,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:57:03,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:57:04,006 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 154 [2023-11-19 07:57:04,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 199 transitions, 1592 flow. Second operand has 10 states, 10 states have (on average 78.3) internal successors, (783), 10 states have internal predecessors, (783), 0 states have call successors, (0), 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 07:57:04,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:04,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 154 [2023-11-19 07:57:04,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:04,743 INFO L124 PetriNetUnfolderBase]: 774/1770 cut-off events. [2023-11-19 07:57:04,743 INFO L125 PetriNetUnfolderBase]: For 3721/3764 co-relation queries the response was YES. [2023-11-19 07:57:04,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7303 conditions, 1770 events. 774/1770 cut-off events. For 3721/3764 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 11140 event pairs, 69 based on Foata normal form. 14/1762 useless extension candidates. Maximal degree in co-relation 7275. Up to 644 conditions per place. [2023-11-19 07:57:04,770 INFO L140 encePairwiseOnDemand]: 138/154 looper letters, 295 selfloop transitions, 81 changer transitions 0/429 dead transitions. [2023-11-19 07:57:04,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 429 transitions, 4134 flow [2023-11-19 07:57:04,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:57:04,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-19 07:57:04,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 960 transitions. [2023-11-19 07:57:04,775 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5667060212514758 [2023-11-19 07:57:04,775 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 960 transitions. [2023-11-19 07:57:04,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 960 transitions. [2023-11-19 07:57:04,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:04,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 960 transitions. [2023-11-19 07:57:04,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 87.27272727272727) internal successors, (960), 11 states have internal predecessors, (960), 0 states have call successors, (0), 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 07:57:04,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 154.0) internal successors, (1848), 12 states have internal predecessors, (1848), 0 states have call successors, (0), 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 07:57:04,785 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 154.0) internal successors, (1848), 12 states have internal predecessors, (1848), 0 states have call successors, (0), 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 07:57:04,785 INFO L175 Difference]: Start difference. First operand has 84 places, 199 transitions, 1592 flow. Second operand 11 states and 960 transitions. [2023-11-19 07:57:04,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 429 transitions, 4134 flow [2023-11-19 07:57:04,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 429 transitions, 4004 flow, removed 65 selfloop flow, removed 0 redundant places. [2023-11-19 07:57:04,908 INFO L231 Difference]: Finished difference. Result has 103 places, 267 transitions, 2499 flow [2023-11-19 07:57:04,909 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=1518, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2499, PETRI_PLACES=103, PETRI_TRANSITIONS=267} [2023-11-19 07:57:04,910 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 58 predicate places. [2023-11-19 07:57:04,910 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 267 transitions, 2499 flow [2023-11-19 07:57:04,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 78.3) internal successors, (783), 10 states have internal predecessors, (783), 0 states have call successors, (0), 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 07:57:04,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:04,911 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:04,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:57:04,911 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:57:04,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:04,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1802023655, now seen corresponding path program 2 times [2023-11-19 07:57:04,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:04,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687678559] [2023-11-19 07:57:04,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:04,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:04,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:05,479 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 07:57:05,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:05,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687678559] [2023-11-19 07:57:05,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687678559] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:05,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:05,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:57:05,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967720250] [2023-11-19 07:57:05,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:05,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:57:05,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:05,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:57:05,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:57:06,024 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 154 [2023-11-19 07:57:06,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 267 transitions, 2499 flow. Second operand has 10 states, 10 states have (on average 78.3) internal successors, (783), 10 states have internal predecessors, (783), 0 states have call successors, (0), 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 07:57:06,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:06,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 154 [2023-11-19 07:57:06,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:06,938 INFO L124 PetriNetUnfolderBase]: 813/1831 cut-off events. [2023-11-19 07:57:06,938 INFO L125 PetriNetUnfolderBase]: For 6152/6208 co-relation queries the response was YES. [2023-11-19 07:57:06,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8405 conditions, 1831 events. 813/1831 cut-off events. For 6152/6208 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 11582 event pairs, 66 based on Foata normal form. 6/1813 useless extension candidates. Maximal degree in co-relation 8366. Up to 1072 conditions per place. [2023-11-19 07:57:06,967 INFO L140 encePairwiseOnDemand]: 138/154 looper letters, 200 selfloop transitions, 93 changer transitions 0/346 dead transitions. [2023-11-19 07:57:06,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 346 transitions, 3805 flow [2023-11-19 07:57:06,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:57:06,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-19 07:57:06,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 784 transitions. [2023-11-19 07:57:06,971 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5656565656565656 [2023-11-19 07:57:06,971 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 784 transitions. [2023-11-19 07:57:06,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 784 transitions. [2023-11-19 07:57:06,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:06,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 784 transitions. [2023-11-19 07:57:06,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 87.11111111111111) internal successors, (784), 9 states have internal predecessors, (784), 0 states have call successors, (0), 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 07:57:06,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 154.0) internal successors, (1540), 10 states have internal predecessors, (1540), 0 states have call successors, (0), 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 07:57:06,979 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 154.0) internal successors, (1540), 10 states have internal predecessors, (1540), 0 states have call successors, (0), 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 07:57:06,979 INFO L175 Difference]: Start difference. First operand has 103 places, 267 transitions, 2499 flow. Second operand 9 states and 784 transitions. [2023-11-19 07:57:06,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 346 transitions, 3805 flow [2023-11-19 07:57:07,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 346 transitions, 3796 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-11-19 07:57:07,032 INFO L231 Difference]: Finished difference. Result has 113 places, 291 transitions, 3204 flow [2023-11-19 07:57:07,033 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=2490, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3204, PETRI_PLACES=113, PETRI_TRANSITIONS=291} [2023-11-19 07:57:07,035 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 68 predicate places. [2023-11-19 07:57:07,035 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 291 transitions, 3204 flow [2023-11-19 07:57:07,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 78.3) internal successors, (783), 10 states have internal predecessors, (783), 0 states have call successors, (0), 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 07:57:07,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:07,036 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:07,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:57:07,036 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:57:07,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:07,037 INFO L85 PathProgramCache]: Analyzing trace with hash -784477964, now seen corresponding path program 1 times [2023-11-19 07:57:07,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:07,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877373454] [2023-11-19 07:57:07,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:07,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:07,454 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 07:57:07,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:07,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877373454] [2023-11-19 07:57:07,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877373454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:07,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:07,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:57:07,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352530559] [2023-11-19 07:57:07,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:07,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:57:07,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:07,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:57:07,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:57:08,044 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 154 [2023-11-19 07:57:08,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 291 transitions, 3204 flow. Second operand has 10 states, 10 states have (on average 78.3) internal successors, (783), 10 states have internal predecessors, (783), 0 states have call successors, (0), 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 07:57:08,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:08,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 154 [2023-11-19 07:57:08,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:08,986 INFO L124 PetriNetUnfolderBase]: 998/2262 cut-off events. [2023-11-19 07:57:08,986 INFO L125 PetriNetUnfolderBase]: For 9449/9512 co-relation queries the response was YES. [2023-11-19 07:57:09,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10772 conditions, 2262 events. 998/2262 cut-off events. For 9449/9512 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 15072 event pairs, 95 based on Foata normal form. 18/2241 useless extension candidates. Maximal degree in co-relation 10729. Up to 1158 conditions per place. [2023-11-19 07:57:09,024 INFO L140 encePairwiseOnDemand]: 138/154 looper letters, 252 selfloop transitions, 114 changer transitions 0/451 dead transitions. [2023-11-19 07:57:09,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 451 transitions, 5250 flow [2023-11-19 07:57:09,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:57:09,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:57:09,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 883 transitions. [2023-11-19 07:57:09,032 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5733766233766234 [2023-11-19 07:57:09,032 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 883 transitions. [2023-11-19 07:57:09,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 883 transitions. [2023-11-19 07:57:09,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:09,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 883 transitions. [2023-11-19 07:57:09,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 88.3) internal successors, (883), 10 states have internal predecessors, (883), 0 states have call successors, (0), 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 07:57:09,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 154.0) internal successors, (1694), 11 states have internal predecessors, (1694), 0 states have call successors, (0), 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 07:57:09,041 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 154.0) internal successors, (1694), 11 states have internal predecessors, (1694), 0 states have call successors, (0), 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 07:57:09,041 INFO L175 Difference]: Start difference. First operand has 113 places, 291 transitions, 3204 flow. Second operand 10 states and 883 transitions. [2023-11-19 07:57:09,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 451 transitions, 5250 flow [2023-11-19 07:57:09,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 451 transitions, 5180 flow, removed 4 selfloop flow, removed 5 redundant places. [2023-11-19 07:57:09,145 INFO L231 Difference]: Finished difference. Result has 123 places, 354 transitions, 4238 flow [2023-11-19 07:57:09,146 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=3148, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4238, PETRI_PLACES=123, PETRI_TRANSITIONS=354} [2023-11-19 07:57:09,147 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 78 predicate places. [2023-11-19 07:57:09,147 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 354 transitions, 4238 flow [2023-11-19 07:57:09,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 78.3) internal successors, (783), 10 states have internal predecessors, (783), 0 states have call successors, (0), 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 07:57:09,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:09,148 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:09,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:57:09,148 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:57:09,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:09,149 INFO L85 PathProgramCache]: Analyzing trace with hash 175122457, now seen corresponding path program 3 times [2023-11-19 07:57:09,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:09,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922459687] [2023-11-19 07:57:09,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:09,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:09,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:09,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:09,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922459687] [2023-11-19 07:57:09,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922459687] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:09,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:09,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:57:09,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494598833] [2023-11-19 07:57:09,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:09,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:57:09,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:09,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:57:09,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:57:10,025 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 154 [2023-11-19 07:57:10,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 354 transitions, 4238 flow. Second operand has 10 states, 10 states have (on average 78.3) internal successors, (783), 10 states have internal predecessors, (783), 0 states have call successors, (0), 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 07:57:10,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:10,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 154 [2023-11-19 07:57:10,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:11,041 INFO L124 PetriNetUnfolderBase]: 992/2265 cut-off events. [2023-11-19 07:57:11,041 INFO L125 PetriNetUnfolderBase]: For 12902/13001 co-relation queries the response was YES. [2023-11-19 07:57:11,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11726 conditions, 2265 events. 992/2265 cut-off events. For 12902/13001 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 15281 event pairs, 85 based on Foata normal form. 20/2248 useless extension candidates. Maximal degree in co-relation 11677. Up to 813 conditions per place. [2023-11-19 07:57:11,092 INFO L140 encePairwiseOnDemand]: 138/154 looper letters, 363 selfloop transitions, 120 changer transitions 0/560 dead transitions. [2023-11-19 07:57:11,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 560 transitions, 7110 flow [2023-11-19 07:57:11,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:57:11,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:57:11,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 879 transitions. [2023-11-19 07:57:11,097 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5707792207792208 [2023-11-19 07:57:11,101 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 879 transitions. [2023-11-19 07:57:11,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 879 transitions. [2023-11-19 07:57:11,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:11,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 879 transitions. [2023-11-19 07:57:11,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 87.9) internal successors, (879), 10 states have internal predecessors, (879), 0 states have call successors, (0), 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 07:57:11,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 154.0) internal successors, (1694), 11 states have internal predecessors, (1694), 0 states have call successors, (0), 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 07:57:11,112 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 154.0) internal successors, (1694), 11 states have internal predecessors, (1694), 0 states have call successors, (0), 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 07:57:11,112 INFO L175 Difference]: Start difference. First operand has 123 places, 354 transitions, 4238 flow. Second operand 10 states and 879 transitions. [2023-11-19 07:57:11,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 560 transitions, 7110 flow [2023-11-19 07:57:11,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 560 transitions, 7059 flow, removed 8 selfloop flow, removed 2 redundant places. [2023-11-19 07:57:11,216 INFO L231 Difference]: Finished difference. Result has 137 places, 396 transitions, 5198 flow [2023-11-19 07:57:11,216 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=4209, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5198, PETRI_PLACES=137, PETRI_TRANSITIONS=396} [2023-11-19 07:57:11,221 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 92 predicate places. [2023-11-19 07:57:11,221 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 396 transitions, 5198 flow [2023-11-19 07:57:11,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 78.3) internal successors, (783), 10 states have internal predecessors, (783), 0 states have call successors, (0), 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 07:57:11,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:11,222 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:11,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:57:11,223 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:57:11,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:11,223 INFO L85 PathProgramCache]: Analyzing trace with hash -2078961683, now seen corresponding path program 4 times [2023-11-19 07:57:11,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:11,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318017332] [2023-11-19 07:57:11,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:11,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:11,649 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 07:57:11,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:11,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318017332] [2023-11-19 07:57:11,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318017332] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:11,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:11,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:57:11,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971747462] [2023-11-19 07:57:11,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:11,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:57:11,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:11,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:57:11,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:57:12,238 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 154 [2023-11-19 07:57:12,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 396 transitions, 5198 flow. Second operand has 10 states, 10 states have (on average 78.3) internal successors, (783), 10 states have internal predecessors, (783), 0 states have call successors, (0), 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 07:57:12,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:12,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 154 [2023-11-19 07:57:12,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:13,350 INFO L124 PetriNetUnfolderBase]: 1060/2403 cut-off events. [2023-11-19 07:57:13,351 INFO L125 PetriNetUnfolderBase]: For 19795/19905 co-relation queries the response was YES. [2023-11-19 07:57:13,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13414 conditions, 2403 events. 1060/2403 cut-off events. For 19795/19905 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 16352 event pairs, 83 based on Foata normal form. 17/2389 useless extension candidates. Maximal degree in co-relation 13358. Up to 1320 conditions per place. [2023-11-19 07:57:13,395 INFO L140 encePairwiseOnDemand]: 138/154 looper letters, 265 selfloop transitions, 154 changer transitions 0/496 dead transitions. [2023-11-19 07:57:13,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 496 transitions, 7282 flow [2023-11-19 07:57:13,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:57:13,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:57:13,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 870 transitions. [2023-11-19 07:57:13,399 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.564935064935065 [2023-11-19 07:57:13,399 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 870 transitions. [2023-11-19 07:57:13,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 870 transitions. [2023-11-19 07:57:13,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:13,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 870 transitions. [2023-11-19 07:57:13,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 87.0) internal successors, (870), 10 states have internal predecessors, (870), 0 states have call successors, (0), 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 07:57:13,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 154.0) internal successors, (1694), 11 states have internal predecessors, (1694), 0 states have call successors, (0), 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 07:57:13,408 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 154.0) internal successors, (1694), 11 states have internal predecessors, (1694), 0 states have call successors, (0), 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 07:57:13,408 INFO L175 Difference]: Start difference. First operand has 137 places, 396 transitions, 5198 flow. Second operand 10 states and 870 transitions. [2023-11-19 07:57:13,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 496 transitions, 7282 flow [2023-11-19 07:57:13,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 496 transitions, 7171 flow, removed 55 selfloop flow, removed 1 redundant places. [2023-11-19 07:57:13,512 INFO L231 Difference]: Finished difference. Result has 150 places, 436 transitions, 6497 flow [2023-11-19 07:57:13,513 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=5105, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6497, PETRI_PLACES=150, PETRI_TRANSITIONS=436} [2023-11-19 07:57:13,513 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 105 predicate places. [2023-11-19 07:57:13,514 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 436 transitions, 6497 flow [2023-11-19 07:57:13,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 78.3) internal successors, (783), 10 states have internal predecessors, (783), 0 states have call successors, (0), 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 07:57:13,515 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:13,515 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:13,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:57:13,515 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:57:13,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:13,516 INFO L85 PathProgramCache]: Analyzing trace with hash 686045720, now seen corresponding path program 2 times [2023-11-19 07:57:13,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:13,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351090788] [2023-11-19 07:57:13,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:13,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:13,935 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 07:57:13,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:13,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351090788] [2023-11-19 07:57:13,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351090788] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:13,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:13,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:57:13,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555004285] [2023-11-19 07:57:13,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:13,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:57:13,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:13,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:57:13,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:57:14,483 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 154 [2023-11-19 07:57:14,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 436 transitions, 6497 flow. Second operand has 10 states, 10 states have (on average 78.3) internal successors, (783), 10 states have internal predecessors, (783), 0 states have call successors, (0), 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 07:57:14,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:14,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 154 [2023-11-19 07:57:14,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:15,592 INFO L124 PetriNetUnfolderBase]: 1099/2489 cut-off events. [2023-11-19 07:57:15,592 INFO L125 PetriNetUnfolderBase]: For 23494/23598 co-relation queries the response was YES. [2023-11-19 07:57:15,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14369 conditions, 2489 events. 1099/2489 cut-off events. For 23494/23598 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 16983 event pairs, 101 based on Foata normal form. 28/2475 useless extension candidates. Maximal degree in co-relation 14307. Up to 897 conditions per place. [2023-11-19 07:57:15,632 INFO L140 encePairwiseOnDemand]: 138/154 looper letters, 389 selfloop transitions, 147 changer transitions 0/652 dead transitions. [2023-11-19 07:57:15,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 652 transitions, 9511 flow [2023-11-19 07:57:15,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:57:15,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:57:15,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 885 transitions. [2023-11-19 07:57:15,636 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5746753246753247 [2023-11-19 07:57:15,637 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 885 transitions. [2023-11-19 07:57:15,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 885 transitions. [2023-11-19 07:57:15,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:15,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 885 transitions. [2023-11-19 07:57:15,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 88.5) internal successors, (885), 10 states have internal predecessors, (885), 0 states have call successors, (0), 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 07:57:15,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 154.0) internal successors, (1694), 11 states have internal predecessors, (1694), 0 states have call successors, (0), 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 07:57:15,644 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 154.0) internal successors, (1694), 11 states have internal predecessors, (1694), 0 states have call successors, (0), 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 07:57:15,644 INFO L175 Difference]: Start difference. First operand has 150 places, 436 transitions, 6497 flow. Second operand 10 states and 885 transitions. [2023-11-19 07:57:15,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 652 transitions, 9511 flow [2023-11-19 07:57:15,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 652 transitions, 9419 flow, removed 12 selfloop flow, removed 4 redundant places. [2023-11-19 07:57:15,778 INFO L231 Difference]: Finished difference. Result has 162 places, 493 transitions, 7771 flow [2023-11-19 07:57:15,780 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=6422, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7771, PETRI_PLACES=162, PETRI_TRANSITIONS=493} [2023-11-19 07:57:15,781 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 117 predicate places. [2023-11-19 07:57:15,781 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 493 transitions, 7771 flow [2023-11-19 07:57:15,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 78.3) internal successors, (783), 10 states have internal predecessors, (783), 0 states have call successors, (0), 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 07:57:15,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:15,782 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:15,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:57:15,782 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:57:15,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:15,782 INFO L85 PathProgramCache]: Analyzing trace with hash -268213043, now seen corresponding path program 1 times [2023-11-19 07:57:15,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:15,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855874303] [2023-11-19 07:57:15,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:15,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:16,174 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 07:57:16,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:16,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855874303] [2023-11-19 07:57:16,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855874303] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:16,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:16,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:57:16,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504879970] [2023-11-19 07:57:16,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:16,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:57:16,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:16,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:57:16,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:57:16,469 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 154 [2023-11-19 07:57:16,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 493 transitions, 7771 flow. Second operand has 10 states, 10 states have (on average 68.8) internal successors, (688), 10 states have internal predecessors, (688), 0 states have call successors, (0), 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 07:57:16,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:16,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 154 [2023-11-19 07:57:16,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:18,084 INFO L124 PetriNetUnfolderBase]: 1373/2971 cut-off events. [2023-11-19 07:57:18,084 INFO L125 PetriNetUnfolderBase]: For 33424/33518 co-relation queries the response was YES. [2023-11-19 07:57:18,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18591 conditions, 2971 events. 1373/2971 cut-off events. For 33424/33518 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 19708 event pairs, 269 based on Foata normal form. 12/2948 useless extension candidates. Maximal degree in co-relation 18522. Up to 2024 conditions per place. [2023-11-19 07:57:18,133 INFO L140 encePairwiseOnDemand]: 131/154 looper letters, 322 selfloop transitions, 241 changer transitions 0/582 dead transitions. [2023-11-19 07:57:18,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 582 transitions, 9758 flow [2023-11-19 07:57:18,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:57:18,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-19 07:57:18,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 750 transitions. [2023-11-19 07:57:18,136 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5411255411255411 [2023-11-19 07:57:18,137 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 750 transitions. [2023-11-19 07:57:18,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 750 transitions. [2023-11-19 07:57:18,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:18,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 750 transitions. [2023-11-19 07:57:18,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 83.33333333333333) internal successors, (750), 9 states have internal predecessors, (750), 0 states have call successors, (0), 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 07:57:18,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 154.0) internal successors, (1540), 10 states have internal predecessors, (1540), 0 states have call successors, (0), 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 07:57:18,143 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 154.0) internal successors, (1540), 10 states have internal predecessors, (1540), 0 states have call successors, (0), 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 07:57:18,207 INFO L175 Difference]: Start difference. First operand has 162 places, 493 transitions, 7771 flow. Second operand 9 states and 750 transitions. [2023-11-19 07:57:18,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 582 transitions, 9758 flow [2023-11-19 07:57:18,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 582 transitions, 9665 flow, removed 21 selfloop flow, removed 2 redundant places. [2023-11-19 07:57:18,419 INFO L231 Difference]: Finished difference. Result has 171 places, 516 transitions, 8776 flow [2023-11-19 07:57:18,420 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=7689, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=493, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=218, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=8776, PETRI_PLACES=171, PETRI_TRANSITIONS=516} [2023-11-19 07:57:18,421 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 126 predicate places. [2023-11-19 07:57:18,421 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 516 transitions, 8776 flow [2023-11-19 07:57:18,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.8) internal successors, (688), 10 states have internal predecessors, (688), 0 states have call successors, (0), 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 07:57:18,422 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:18,422 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:18,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:57:18,422 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:57:18,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:18,423 INFO L85 PathProgramCache]: Analyzing trace with hash -156354137, now seen corresponding path program 2 times [2023-11-19 07:57:18,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:18,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557404660] [2023-11-19 07:57:18,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:18,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:18,786 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 07:57:18,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:18,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557404660] [2023-11-19 07:57:18,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557404660] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:18,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:18,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:57:18,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361738885] [2023-11-19 07:57:18,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:18,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:57:18,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:18,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:57:18,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:57:19,291 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 154 [2023-11-19 07:57:19,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 516 transitions, 8776 flow. Second operand has 10 states, 10 states have (on average 68.8) internal successors, (688), 10 states have internal predecessors, (688), 0 states have call successors, (0), 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 07:57:19,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:19,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 154 [2023-11-19 07:57:19,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:20,876 INFO L124 PetriNetUnfolderBase]: 1464/3157 cut-off events. [2023-11-19 07:57:20,876 INFO L125 PetriNetUnfolderBase]: For 38479/38574 co-relation queries the response was YES. [2023-11-19 07:57:20,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20768 conditions, 3157 events. 1464/3157 cut-off events. For 38479/38574 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 21266 event pairs, 240 based on Foata normal form. 26/3153 useless extension candidates. Maximal degree in co-relation 20696. Up to 1379 conditions per place. [2023-11-19 07:57:20,990 INFO L140 encePairwiseOnDemand]: 131/154 looper letters, 585 selfloop transitions, 181 changer transitions 0/785 dead transitions. [2023-11-19 07:57:20,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 785 transitions, 13161 flow [2023-11-19 07:57:20,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:57:20,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:57:20,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 828 transitions. [2023-11-19 07:57:20,997 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5376623376623376 [2023-11-19 07:57:20,998 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 828 transitions. [2023-11-19 07:57:20,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 828 transitions. [2023-11-19 07:57:20,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:20,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 828 transitions. [2023-11-19 07:57:21,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 82.8) internal successors, (828), 10 states have internal predecessors, (828), 0 states have call successors, (0), 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 07:57:21,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 154.0) internal successors, (1694), 11 states have internal predecessors, (1694), 0 states have call successors, (0), 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 07:57:21,005 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 154.0) internal successors, (1694), 11 states have internal predecessors, (1694), 0 states have call successors, (0), 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 07:57:21,006 INFO L175 Difference]: Start difference. First operand has 171 places, 516 transitions, 8776 flow. Second operand 10 states and 828 transitions. [2023-11-19 07:57:21,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 785 transitions, 13161 flow [2023-11-19 07:57:21,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 785 transitions, 12964 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-11-19 07:57:21,237 INFO L231 Difference]: Finished difference. Result has 183 places, 590 transitions, 10420 flow [2023-11-19 07:57:21,238 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=8599, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=516, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10420, PETRI_PLACES=183, PETRI_TRANSITIONS=590} [2023-11-19 07:57:21,239 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 138 predicate places. [2023-11-19 07:57:21,239 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 590 transitions, 10420 flow [2023-11-19 07:57:21,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.8) internal successors, (688), 10 states have internal predecessors, (688), 0 states have call successors, (0), 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 07:57:21,240 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:21,240 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:21,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:57:21,240 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:57:21,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:21,241 INFO L85 PathProgramCache]: Analyzing trace with hash -215396483, now seen corresponding path program 3 times [2023-11-19 07:57:21,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:21,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342850785] [2023-11-19 07:57:21,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:21,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:21,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:21,652 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 07:57:21,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:21,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342850785] [2023-11-19 07:57:21,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342850785] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:21,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:21,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:57:21,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837446734] [2023-11-19 07:57:21,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:21,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:57:21,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:21,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:57:21,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:57:21,932 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 154 [2023-11-19 07:57:21,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 590 transitions, 10420 flow. Second operand has 10 states, 10 states have (on average 68.8) internal successors, (688), 10 states have internal predecessors, (688), 0 states have call successors, (0), 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 07:57:21,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:21,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 154 [2023-11-19 07:57:21,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:23,828 INFO L124 PetriNetUnfolderBase]: 1544/3313 cut-off events. [2023-11-19 07:57:23,828 INFO L125 PetriNetUnfolderBase]: For 46266/46371 co-relation queries the response was YES. [2023-11-19 07:57:23,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23245 conditions, 3313 events. 1544/3313 cut-off events. For 46266/46371 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 22380 event pairs, 278 based on Foata normal form. 23/3301 useless extension candidates. Maximal degree in co-relation 23166. Up to 2159 conditions per place. [2023-11-19 07:57:23,883 INFO L140 encePairwiseOnDemand]: 131/154 looper letters, 396 selfloop transitions, 307 changer transitions 0/722 dead transitions. [2023-11-19 07:57:23,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 722 transitions, 13372 flow [2023-11-19 07:57:23,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:57:23,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:57:23,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 831 transitions. [2023-11-19 07:57:23,888 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5396103896103897 [2023-11-19 07:57:23,889 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 831 transitions. [2023-11-19 07:57:23,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 831 transitions. [2023-11-19 07:57:23,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:23,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 831 transitions. [2023-11-19 07:57:23,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 83.1) internal successors, (831), 10 states have internal predecessors, (831), 0 states have call successors, (0), 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 07:57:23,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 154.0) internal successors, (1694), 11 states have internal predecessors, (1694), 0 states have call successors, (0), 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 07:57:23,900 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 154.0) internal successors, (1694), 11 states have internal predecessors, (1694), 0 states have call successors, (0), 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 07:57:23,900 INFO L175 Difference]: Start difference. First operand has 183 places, 590 transitions, 10420 flow. Second operand 10 states and 831 transitions. [2023-11-19 07:57:23,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 722 transitions, 13372 flow [2023-11-19 07:57:24,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 722 transitions, 13265 flow, removed 22 selfloop flow, removed 2 redundant places. [2023-11-19 07:57:24,364 INFO L231 Difference]: Finished difference. Result has 195 places, 638 transitions, 12222 flow [2023-11-19 07:57:24,365 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=10340, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=590, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=261, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12222, PETRI_PLACES=195, PETRI_TRANSITIONS=638} [2023-11-19 07:57:24,366 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 150 predicate places. [2023-11-19 07:57:24,366 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 638 transitions, 12222 flow [2023-11-19 07:57:24,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.8) internal successors, (688), 10 states have internal predecessors, (688), 0 states have call successors, (0), 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 07:57:24,367 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:24,367 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:24,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 07:57:24,368 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:57:24,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:24,368 INFO L85 PathProgramCache]: Analyzing trace with hash -2087125825, now seen corresponding path program 5 times [2023-11-19 07:57:24,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:24,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033389240] [2023-11-19 07:57:24,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:24,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:24,774 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 07:57:24,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:24,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033389240] [2023-11-19 07:57:24,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033389240] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:24,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:24,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:57:24,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638839752] [2023-11-19 07:57:24,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:24,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:57:24,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:24,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:57:24,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:57:25,281 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 154 [2023-11-19 07:57:25,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 638 transitions, 12222 flow. Second operand has 10 states, 10 states have (on average 78.3) internal successors, (783), 10 states have internal predecessors, (783), 0 states have call successors, (0), 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 07:57:25,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:25,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 154 [2023-11-19 07:57:25,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:26,839 INFO L124 PetriNetUnfolderBase]: 1367/3036 cut-off events. [2023-11-19 07:57:26,839 INFO L125 PetriNetUnfolderBase]: For 54796/55012 co-relation queries the response was YES. [2023-11-19 07:57:26,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23353 conditions, 3036 events. 1367/3036 cut-off events. For 54796/55012 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 21419 event pairs, 124 based on Foata normal form. 24/3016 useless extension candidates. Maximal degree in co-relation 23269. Up to 1645 conditions per place. [2023-11-19 07:57:26,880 INFO L140 encePairwiseOnDemand]: 138/154 looper letters, 432 selfloop transitions, 246 changer transitions 0/793 dead transitions. [2023-11-19 07:57:26,880 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 793 transitions, 16393 flow [2023-11-19 07:57:26,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:57:26,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:57:26,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 874 transitions. [2023-11-19 07:57:26,883 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5675324675324676 [2023-11-19 07:57:26,884 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 874 transitions. [2023-11-19 07:57:26,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 874 transitions. [2023-11-19 07:57:26,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:26,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 874 transitions. [2023-11-19 07:57:26,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 87.4) internal successors, (874), 10 states have internal predecessors, (874), 0 states have call successors, (0), 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 07:57:26,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 154.0) internal successors, (1694), 11 states have internal predecessors, (1694), 0 states have call successors, (0), 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 07:57:26,891 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 154.0) internal successors, (1694), 11 states have internal predecessors, (1694), 0 states have call successors, (0), 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 07:57:26,891 INFO L175 Difference]: Start difference. First operand has 195 places, 638 transitions, 12222 flow. Second operand 10 states and 874 transitions. [2023-11-19 07:57:26,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 793 transitions, 16393 flow [2023-11-19 07:57:27,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 793 transitions, 16094 flow, removed 20 selfloop flow, removed 4 redundant places. [2023-11-19 07:57:27,202 INFO L231 Difference]: Finished difference. Result has 206 places, 693 transitions, 14372 flow [2023-11-19 07:57:27,203 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=11989, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=638, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=195, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=14372, PETRI_PLACES=206, PETRI_TRANSITIONS=693} [2023-11-19 07:57:27,203 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 161 predicate places. [2023-11-19 07:57:27,204 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 693 transitions, 14372 flow [2023-11-19 07:57:27,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 78.3) internal successors, (783), 10 states have internal predecessors, (783), 0 states have call successors, (0), 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 07:57:27,204 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:27,204 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:27,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 07:57:27,205 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:57:27,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:27,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1562421656, now seen corresponding path program 1 times [2023-11-19 07:57:27,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:27,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244923719] [2023-11-19 07:57:27,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:27,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:27,511 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 07:57:27,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:27,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244923719] [2023-11-19 07:57:27,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244923719] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:27,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:27,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:57:27,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899170446] [2023-11-19 07:57:27,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:27,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:57:27,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:27,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:57:27,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:57:27,951 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 154 [2023-11-19 07:57:27,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 693 transitions, 14372 flow. Second operand has 10 states, 10 states have (on average 68.8) internal successors, (688), 10 states have internal predecessors, (688), 0 states have call successors, (0), 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 07:57:27,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:27,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 154 [2023-11-19 07:57:27,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:30,573 INFO L124 PetriNetUnfolderBase]: 1834/3950 cut-off events. [2023-11-19 07:57:30,574 INFO L125 PetriNetUnfolderBase]: For 72204/72359 co-relation queries the response was YES. [2023-11-19 07:57:30,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30100 conditions, 3950 events. 1834/3950 cut-off events. For 72204/72359 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 28020 event pairs, 347 based on Foata normal form. 24/3931 useless extension candidates. Maximal degree in co-relation 30010. Up to 2402 conditions per place. [2023-11-19 07:57:30,625 INFO L140 encePairwiseOnDemand]: 134/154 looper letters, 615 selfloop transitions, 315 changer transitions 0/945 dead transitions. [2023-11-19 07:57:30,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 945 transitions, 19572 flow [2023-11-19 07:57:30,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:57:30,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:57:30,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 810 transitions. [2023-11-19 07:57:30,627 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.525974025974026 [2023-11-19 07:57:30,628 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 810 transitions. [2023-11-19 07:57:30,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 810 transitions. [2023-11-19 07:57:30,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:30,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 810 transitions. [2023-11-19 07:57:30,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 81.0) internal successors, (810), 10 states have internal predecessors, (810), 0 states have call successors, (0), 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 07:57:30,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 154.0) internal successors, (1694), 11 states have internal predecessors, (1694), 0 states have call successors, (0), 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 07:57:30,635 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 154.0) internal successors, (1694), 11 states have internal predecessors, (1694), 0 states have call successors, (0), 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 07:57:30,635 INFO L175 Difference]: Start difference. First operand has 206 places, 693 transitions, 14372 flow. Second operand 10 states and 810 transitions. [2023-11-19 07:57:30,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 945 transitions, 19572 flow [2023-11-19 07:57:31,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 945 transitions, 19439 flow, removed 49 selfloop flow, removed 2 redundant places. [2023-11-19 07:57:31,104 INFO L231 Difference]: Finished difference. Result has 219 places, 793 transitions, 16796 flow [2023-11-19 07:57:31,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=14251, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=693, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=234, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=16796, PETRI_PLACES=219, PETRI_TRANSITIONS=793} [2023-11-19 07:57:31,105 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 174 predicate places. [2023-11-19 07:57:31,106 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 793 transitions, 16796 flow [2023-11-19 07:57:31,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.8) internal successors, (688), 10 states have internal predecessors, (688), 0 states have call successors, (0), 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 07:57:31,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:31,107 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:31,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-19 07:57:31,107 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:57:31,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:31,108 INFO L85 PathProgramCache]: Analyzing trace with hash -694821885, now seen corresponding path program 6 times [2023-11-19 07:57:31,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:31,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962145461] [2023-11-19 07:57:31,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:31,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:31,466 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 07:57:31,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:31,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962145461] [2023-11-19 07:57:31,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962145461] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:31,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:31,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:57:31,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31211305] [2023-11-19 07:57:31,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:31,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:57:31,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:31,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:57:31,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:57:32,061 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 154 [2023-11-19 07:57:32,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 793 transitions, 16796 flow. Second operand has 10 states, 10 states have (on average 78.3) internal successors, (783), 10 states have internal predecessors, (783), 0 states have call successors, (0), 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 07:57:32,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:32,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 154 [2023-11-19 07:57:32,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:34,139 INFO L124 PetriNetUnfolderBase]: 1597/3526 cut-off events. [2023-11-19 07:57:34,139 INFO L125 PetriNetUnfolderBase]: For 80936/81187 co-relation queries the response was YES. [2023-11-19 07:57:34,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28987 conditions, 3526 events. 1597/3526 cut-off events. For 80936/81187 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 25754 event pairs, 140 based on Foata normal form. 23/3503 useless extension candidates. Maximal degree in co-relation 28891. Up to 1897 conditions per place. [2023-11-19 07:57:34,201 INFO L140 encePairwiseOnDemand]: 138/154 looper letters, 530 selfloop transitions, 277 changer transitions 0/943 dead transitions. [2023-11-19 07:57:34,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 943 transitions, 21243 flow [2023-11-19 07:57:34,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:57:34,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 07:57:34,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 875 transitions. [2023-11-19 07:57:34,204 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5681818181818182 [2023-11-19 07:57:34,204 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 875 transitions. [2023-11-19 07:57:34,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 875 transitions. [2023-11-19 07:57:34,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:34,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 875 transitions. [2023-11-19 07:57:34,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 87.5) internal successors, (875), 10 states have internal predecessors, (875), 0 states have call successors, (0), 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 07:57:34,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 154.0) internal successors, (1694), 11 states have internal predecessors, (1694), 0 states have call successors, (0), 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 07:57:34,212 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 154.0) internal successors, (1694), 11 states have internal predecessors, (1694), 0 states have call successors, (0), 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 07:57:34,212 INFO L175 Difference]: Start difference. First operand has 219 places, 793 transitions, 16796 flow. Second operand 10 states and 875 transitions. [2023-11-19 07:57:34,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 943 transitions, 21243 flow [2023-11-19 07:57:34,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 943 transitions, 21114 flow, removed 47 selfloop flow, removed 2 redundant places. [2023-11-19 07:57:34,715 INFO L231 Difference]: Finished difference. Result has 232 places, 840 transitions, 19045 flow [2023-11-19 07:57:34,716 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=154, PETRI_DIFFERENCE_MINUEND_FLOW=16667, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=793, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=233, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=533, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=19045, PETRI_PLACES=232, PETRI_TRANSITIONS=840} [2023-11-19 07:57:34,717 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 187 predicate places. [2023-11-19 07:57:34,717 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 840 transitions, 19045 flow [2023-11-19 07:57:34,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 78.3) internal successors, (783), 10 states have internal predecessors, (783), 0 states have call successors, (0), 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 07:57:34,718 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:34,718 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:34,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-19 07:57:34,719 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 07:57:34,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:34,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1450516237, now seen corresponding path program 4 times [2023-11-19 07:57:34,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:34,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803093879] [2023-11-19 07:57:34,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:34,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:34,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:35,074 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 07:57:35,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:35,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803093879] [2023-11-19 07:57:35,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803093879] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:35,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:35,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:57:35,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942503108] [2023-11-19 07:57:35,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:35,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:57:35,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:35,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:57:35,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:57:35,549 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 154 [2023-11-19 07:57:35,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 840 transitions, 19045 flow. Second operand has 10 states, 10 states have (on average 68.8) internal successors, (688), 10 states have internal predecessors, (688), 0 states have call successors, (0), 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 07:57:35,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:35,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 154 [2023-11-19 07:57:35,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand