./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc-race-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a0165632 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_e28cf394-e168-4858-a965-9039058591b3/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28cf394-e168-4858-a965-9039058591b3/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28cf394-e168-4858-a965-9039058591b3/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28cf394-e168-4858-a965-9039058591b3/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc-race-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28cf394-e168-4858-a965-9039058591b3/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28cf394-e168-4858-a965-9039058591b3/bin/uautomizer-verify-jihMAELWvX --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 729ea5b7f047316231f562bf88a66f84bb913811f2b458cb706ab3ed78d2b3a0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:13:58,503 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:13:58,650 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28cf394-e168-4858-a965-9039058591b3/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-08 16:13:58,658 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:13:58,659 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:13:58,690 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:13:58,691 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:13:58,691 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:13:58,692 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:13:58,692 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:13:58,693 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:13:58,693 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:13:58,694 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:13:58,694 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:13:58,695 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:13:58,695 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:13:58,695 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:13:58,696 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:13:58,696 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:13:58,697 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:13:58,697 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:13:58,698 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:13:58,698 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-08 16:13:58,699 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:13:58,699 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:13:58,699 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:13:58,700 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:13:58,700 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:13:58,700 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:13:58,701 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:13:58,701 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:13:58,701 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:13:58,702 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:13:58,702 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:13:58,702 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:13:58,703 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:13:58,703 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:13:58,703 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:13:58,704 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:13:58,704 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:13:58,705 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:13:58,705 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_e28cf394-e168-4858-a965-9039058591b3/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28cf394-e168-4858-a965-9039058591b3/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 729ea5b7f047316231f562bf88a66f84bb913811f2b458cb706ab3ed78d2b3a0 [2024-11-08 16:13:58,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:13:59,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:13:59,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:13:59,065 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:13:59,070 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:13:59,072 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28cf394-e168-4858-a965-9039058591b3/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc-race-2.i Unable to find full path for "g++" [2024-11-08 16:14:01,121 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:14:01,442 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:14:01,443 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28cf394-e168-4858-a965-9039058591b3/sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc-race-2.i [2024-11-08 16:14:01,471 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28cf394-e168-4858-a965-9039058591b3/bin/uautomizer-verify-jihMAELWvX/data/cac527b88/1bdfa4050db1486997adb489066594ab/FLAG96ecc6cb0 [2024-11-08 16:14:01,495 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28cf394-e168-4858-a965-9039058591b3/bin/uautomizer-verify-jihMAELWvX/data/cac527b88/1bdfa4050db1486997adb489066594ab [2024-11-08 16:14:01,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:14:01,500 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:14:01,502 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:14:01,502 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:14:01,508 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:14:01,509 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:14:01" (1/1) ... [2024-11-08 16:14:01,512 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c4be3a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:14:01, skipping insertion in model container [2024-11-08 16:14:01,513 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:14:01" (1/1) ... [2024-11-08 16:14:01,586 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:14:02,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:14:02,257 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:14:02,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:14:02,432 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:14:02,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:14:02 WrapperNode [2024-11-08 16:14:02,433 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:14:02,434 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:14:02,434 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:14:02,434 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:14:02,442 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:14:02" (1/1) ... [2024-11-08 16:14:02,466 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:14:02" (1/1) ... [2024-11-08 16:14:02,497 INFO L138 Inliner]: procedures = 277, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2024-11-08 16:14:02,500 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:14:02,501 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:14:02,501 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:14:02,502 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:14:02,512 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:14:02" (1/1) ... [2024-11-08 16:14:02,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:14:02" (1/1) ... [2024-11-08 16:14:02,519 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:14:02" (1/1) ... [2024-11-08 16:14:02,519 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:14:02" (1/1) ... [2024-11-08 16:14:02,531 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:14:02" (1/1) ... [2024-11-08 16:14:02,534 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:14:02" (1/1) ... [2024-11-08 16:14:02,536 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:14:02" (1/1) ... [2024-11-08 16:14:02,538 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:14:02" (1/1) ... [2024-11-08 16:14:02,541 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:14:02,542 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:14:02,542 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:14:02,542 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:14:02,543 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:14:02" (1/1) ... [2024-11-08 16:14:02,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:14:02,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28cf394-e168-4858-a965-9039058591b3/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:14:02,585 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28cf394-e168-4858-a965-9039058591b3/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:14:02,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e28cf394-e168-4858-a965-9039058591b3/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:14:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 16:14:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 16:14:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 16:14:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 16:14:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 16:14:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 16:14:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:14:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 16:14:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-08 16:14:02,661 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-08 16:14:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:14:02,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:14:02,663 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 16:14:02,885 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:14:02,886 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:14:03,162 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 16:14:03,162 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:14:03,193 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:14:03,194 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:14:03,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:14:03 BoogieIcfgContainer [2024-11-08 16:14:03,194 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:14:03,197 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:14:03,197 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:14:03,201 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:14:03,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:14:01" (1/3) ... [2024-11-08 16:14:03,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5282055d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:14:03, skipping insertion in model container [2024-11-08 16:14:03,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:14:02" (2/3) ... [2024-11-08 16:14:03,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5282055d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:14:03, skipping insertion in model container [2024-11-08 16:14:03,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:14:03" (3/3) ... [2024-11-08 16:14:03,204 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-index-inc-race-2.i [2024-11-08 16:14:03,233 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:14:03,233 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-11-08 16:14:03,233 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 16:14:03,322 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 16:14:03,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 125 transitions, 257 flow [2024-11-08 16:14:03,455 INFO L124 PetriNetUnfolderBase]: 6/162 cut-off events. [2024-11-08 16:14:03,455 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 16:14:03,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 162 events. 6/162 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 258 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 81. Up to 4 conditions per place. [2024-11-08 16:14:03,461 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 125 transitions, 257 flow [2024-11-08 16:14:03,466 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 125 transitions, 257 flow [2024-11-08 16:14:03,475 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:14:03,485 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7f5dee39, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:14:03,485 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-08 16:14:03,494 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:14:03,495 INFO L124 PetriNetUnfolderBase]: 1/32 cut-off events. [2024-11-08 16:14:03,495 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:14:03,495 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:14:03,496 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:03,496 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-08 16:14:03,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:03,505 INFO L85 PathProgramCache]: Analyzing trace with hash 958461797, now seen corresponding path program 1 times [2024-11-08 16:14:03,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:03,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126457631] [2024-11-08 16:14:03,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:03,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:03,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:03,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:14:03,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:03,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126457631] [2024-11-08 16:14:03,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126457631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:03,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:03,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:14:03,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578408499] [2024-11-08 16:14:03,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:03,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:14:03,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:03,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:14:03,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:14:03,913 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 125 [2024-11-08 16:14:03,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 125 transitions, 257 flow. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:03,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:14:03,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 125 [2024-11-08 16:14:03,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:14:04,038 INFO L124 PetriNetUnfolderBase]: 11/238 cut-off events. [2024-11-08 16:14:04,039 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-08 16:14:04,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 238 events. 11/238 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 601 event pairs, 6 based on Foata normal form. 1/207 useless extension candidates. Maximal degree in co-relation 176. Up to 25 conditions per place. [2024-11-08 16:14:04,045 INFO L140 encePairwiseOnDemand]: 121/125 looper letters, 10 selfloop transitions, 2 changer transitions 1/123 dead transitions. [2024-11-08 16:14:04,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 123 transitions, 277 flow [2024-11-08 16:14:04,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:14:04,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:14:04,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 347 transitions. [2024-11-08 16:14:04,063 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9253333333333333 [2024-11-08 16:14:04,066 INFO L175 Difference]: Start difference. First operand has 124 places, 125 transitions, 257 flow. Second operand 3 states and 347 transitions. [2024-11-08 16:14:04,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 123 transitions, 277 flow [2024-11-08 16:14:04,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 123 transitions, 277 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:14:04,081 INFO L231 Difference]: Finished difference. Result has 125 places, 122 transitions, 255 flow [2024-11-08 16:14:04,084 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=255, PETRI_PLACES=125, PETRI_TRANSITIONS=122} [2024-11-08 16:14:04,089 INFO L277 CegarLoopForPetriNet]: 124 programPoint places, 1 predicate places. [2024-11-08 16:14:04,090 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 122 transitions, 255 flow [2024-11-08 16:14:04,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:04,092 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:14:04,092 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:04,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:14:04,094 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-08 16:14:04,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:04,094 INFO L85 PathProgramCache]: Analyzing trace with hash 2123314908, now seen corresponding path program 1 times [2024-11-08 16:14:04,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:04,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099477305] [2024-11-08 16:14:04,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:04,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:04,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:14:04,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:04,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099477305] [2024-11-08 16:14:04,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099477305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:04,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:04,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:14:04,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632605385] [2024-11-08 16:14:04,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:04,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:14:04,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:04,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:14:04,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:14:04,244 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 125 [2024-11-08 16:14:04,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 122 transitions, 255 flow. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:04,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:14:04,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 125 [2024-11-08 16:14:04,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:14:04,331 INFO L124 PetriNetUnfolderBase]: 14/224 cut-off events. [2024-11-08 16:14:04,331 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-08 16:14:04,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 224 events. 14/224 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 497 event pairs, 2 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 221. Up to 24 conditions per place. [2024-11-08 16:14:04,334 INFO L140 encePairwiseOnDemand]: 121/125 looper letters, 11 selfloop transitions, 2 changer transitions 0/124 dead transitions. [2024-11-08 16:14:04,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 124 transitions, 285 flow [2024-11-08 16:14:04,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:14:04,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:14:04,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 354 transitions. [2024-11-08 16:14:04,339 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.944 [2024-11-08 16:14:04,339 INFO L175 Difference]: Start difference. First operand has 125 places, 122 transitions, 255 flow. Second operand 3 states and 354 transitions. [2024-11-08 16:14:04,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 124 transitions, 285 flow [2024-11-08 16:14:04,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 124 transitions, 281 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:14:04,347 INFO L231 Difference]: Finished difference. Result has 123 places, 122 transitions, 261 flow [2024-11-08 16:14:04,348 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=261, PETRI_PLACES=123, PETRI_TRANSITIONS=122} [2024-11-08 16:14:04,349 INFO L277 CegarLoopForPetriNet]: 124 programPoint places, -1 predicate places. [2024-11-08 16:14:04,350 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 122 transitions, 261 flow [2024-11-08 16:14:04,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:04,351 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:14:04,351 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:04,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:14:04,351 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-08 16:14:04,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:04,352 INFO L85 PathProgramCache]: Analyzing trace with hash 156531865, now seen corresponding path program 1 times [2024-11-08 16:14:04,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:04,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700536152] [2024-11-08 16:14:04,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:04,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:05,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:14:05,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:05,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700536152] [2024-11-08 16:14:05,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700536152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:05,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:05,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:14:05,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480936684] [2024-11-08 16:14:05,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:05,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:14:05,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:05,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:14:05,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:14:05,347 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 125 [2024-11-08 16:14:05,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 122 transitions, 261 flow. Second operand has 6 states, 6 states have (on average 99.5) internal successors, (597), 6 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:05,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:14:05,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 125 [2024-11-08 16:14:05,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:14:05,557 INFO L124 PetriNetUnfolderBase]: 112/560 cut-off events. [2024-11-08 16:14:05,557 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-08 16:14:05,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 834 conditions, 560 events. 112/560 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2812 event pairs, 37 based on Foata normal form. 0/495 useless extension candidates. Maximal degree in co-relation 707. Up to 195 conditions per place. [2024-11-08 16:14:05,564 INFO L140 encePairwiseOnDemand]: 114/125 looper letters, 33 selfloop transitions, 22 changer transitions 0/151 dead transitions. [2024-11-08 16:14:05,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 151 transitions, 429 flow [2024-11-08 16:14:05,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:14:05,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:14:05,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 644 transitions. [2024-11-08 16:14:05,570 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8586666666666667 [2024-11-08 16:14:05,570 INFO L175 Difference]: Start difference. First operand has 123 places, 122 transitions, 261 flow. Second operand 6 states and 644 transitions. [2024-11-08 16:14:05,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 151 transitions, 429 flow [2024-11-08 16:14:05,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 151 transitions, 429 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:14:05,574 INFO L231 Difference]: Finished difference. Result has 133 places, 143 transitions, 411 flow [2024-11-08 16:14:05,574 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=411, PETRI_PLACES=133, PETRI_TRANSITIONS=143} [2024-11-08 16:14:05,577 INFO L277 CegarLoopForPetriNet]: 124 programPoint places, 9 predicate places. [2024-11-08 16:14:05,578 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 143 transitions, 411 flow [2024-11-08 16:14:05,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.5) internal successors, (597), 6 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:05,579 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:14:05,580 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:05,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:14:05,580 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-08 16:14:05,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:05,582 INFO L85 PathProgramCache]: Analyzing trace with hash -851701167, now seen corresponding path program 1 times [2024-11-08 16:14:05,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:05,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046584962] [2024-11-08 16:14:05,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:05,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:05,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:05,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:14:05,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:05,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046584962] [2024-11-08 16:14:05,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046584962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:05,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:05,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:14:05,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422310882] [2024-11-08 16:14:05,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:05,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:14:05,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:05,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:14:05,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:14:05,873 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 125 [2024-11-08 16:14:05,874 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 143 transitions, 411 flow. Second operand has 5 states, 5 states have (on average 108.6) internal successors, (543), 5 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:05,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:14:05,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 125 [2024-11-08 16:14:05,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:14:05,975 INFO L124 PetriNetUnfolderBase]: 58/389 cut-off events. [2024-11-08 16:14:05,975 INFO L125 PetriNetUnfolderBase]: For 40/49 co-relation queries the response was YES. [2024-11-08 16:14:05,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 639 conditions, 389 events. 58/389 cut-off events. For 40/49 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1501 event pairs, 0 based on Foata normal form. 2/367 useless extension candidates. Maximal degree in co-relation 508. Up to 53 conditions per place. [2024-11-08 16:14:05,978 INFO L140 encePairwiseOnDemand]: 116/125 looper letters, 17 selfloop transitions, 2 changer transitions 6/151 dead transitions. [2024-11-08 16:14:05,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 151 transitions, 477 flow [2024-11-08 16:14:05,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:14:05,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:14:05,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 668 transitions. [2024-11-08 16:14:05,981 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8906666666666667 [2024-11-08 16:14:05,982 INFO L175 Difference]: Start difference. First operand has 133 places, 143 transitions, 411 flow. Second operand 6 states and 668 transitions. [2024-11-08 16:14:05,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 151 transitions, 477 flow [2024-11-08 16:14:05,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 151 transitions, 477 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:14:05,988 INFO L231 Difference]: Finished difference. Result has 142 places, 143 transitions, 431 flow [2024-11-08 16:14:05,989 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=411, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=431, PETRI_PLACES=142, PETRI_TRANSITIONS=143} [2024-11-08 16:14:05,990 INFO L277 CegarLoopForPetriNet]: 124 programPoint places, 18 predicate places. [2024-11-08 16:14:05,990 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 143 transitions, 431 flow [2024-11-08 16:14:05,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 108.6) internal successors, (543), 5 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:05,991 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:14:05,991 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:05,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:14:05,991 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-08 16:14:05,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:05,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1967733274, now seen corresponding path program 1 times [2024-11-08 16:14:05,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:05,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403922506] [2024-11-08 16:14:05,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:05,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:06,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:14:06,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:06,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403922506] [2024-11-08 16:14:06,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403922506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:06,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:06,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:14:06,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604454041] [2024-11-08 16:14:06,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:06,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:14:06,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:06,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:14:06,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:14:06,057 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 125 [2024-11-08 16:14:06,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 143 transitions, 431 flow. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:06,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:14:06,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 125 [2024-11-08 16:14:06,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:14:06,118 INFO L124 PetriNetUnfolderBase]: 27/273 cut-off events. [2024-11-08 16:14:06,118 INFO L125 PetriNetUnfolderBase]: For 33/44 co-relation queries the response was YES. [2024-11-08 16:14:06,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 456 conditions, 273 events. 27/273 cut-off events. For 33/44 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 884 event pairs, 0 based on Foata normal form. 0/258 useless extension candidates. Maximal degree in co-relation 364. Up to 49 conditions per place. [2024-11-08 16:14:06,120 INFO L140 encePairwiseOnDemand]: 121/125 looper letters, 7 selfloop transitions, 2 changer transitions 0/141 dead transitions. [2024-11-08 16:14:06,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 141 transitions, 445 flow [2024-11-08 16:14:06,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:14:06,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:14:06,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2024-11-08 16:14:06,122 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9333333333333333 [2024-11-08 16:14:06,122 INFO L175 Difference]: Start difference. First operand has 142 places, 143 transitions, 431 flow. Second operand 3 states and 350 transitions. [2024-11-08 16:14:06,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 141 transitions, 445 flow [2024-11-08 16:14:06,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 141 transitions, 431 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-08 16:14:06,128 INFO L231 Difference]: Finished difference. Result has 134 places, 141 transitions, 417 flow [2024-11-08 16:14:06,129 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=417, PETRI_PLACES=134, PETRI_TRANSITIONS=141} [2024-11-08 16:14:06,129 INFO L277 CegarLoopForPetriNet]: 124 programPoint places, 10 predicate places. [2024-11-08 16:14:06,129 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 141 transitions, 417 flow [2024-11-08 16:14:06,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:06,130 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:14:06,130 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:06,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:14:06,131 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-08 16:14:06,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:06,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1565815349, now seen corresponding path program 1 times [2024-11-08 16:14:06,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:06,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863462163] [2024-11-08 16:14:06,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:06,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:06,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:14:06,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:06,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863462163] [2024-11-08 16:14:06,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863462163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:06,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:06,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:14:06,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169222109] [2024-11-08 16:14:06,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:06,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:14:06,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:06,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:14:06,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:14:06,244 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 125 [2024-11-08 16:14:06,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 141 transitions, 417 flow. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:06,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:14:06,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 125 [2024-11-08 16:14:06,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:14:06,314 INFO L124 PetriNetUnfolderBase]: 27/272 cut-off events. [2024-11-08 16:14:06,315 INFO L125 PetriNetUnfolderBase]: For 33/44 co-relation queries the response was YES. [2024-11-08 16:14:06,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 445 conditions, 272 events. 27/272 cut-off events. For 33/44 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 866 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 356. Up to 49 conditions per place. [2024-11-08 16:14:06,317 INFO L140 encePairwiseOnDemand]: 122/125 looper letters, 8 selfloop transitions, 2 changer transitions 0/140 dead transitions. [2024-11-08 16:14:06,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 140 transitions, 435 flow [2024-11-08 16:14:06,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:14:06,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:14:06,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2024-11-08 16:14:06,320 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9333333333333333 [2024-11-08 16:14:06,320 INFO L175 Difference]: Start difference. First operand has 134 places, 141 transitions, 417 flow. Second operand 3 states and 350 transitions. [2024-11-08 16:14:06,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 140 transitions, 435 flow [2024-11-08 16:14:06,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 140 transitions, 431 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:14:06,327 INFO L231 Difference]: Finished difference. Result has 133 places, 140 transitions, 415 flow [2024-11-08 16:14:06,328 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=411, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=415, PETRI_PLACES=133, PETRI_TRANSITIONS=140} [2024-11-08 16:14:06,330 INFO L277 CegarLoopForPetriNet]: 124 programPoint places, 9 predicate places. [2024-11-08 16:14:06,331 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 140 transitions, 415 flow [2024-11-08 16:14:06,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:06,332 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:14:06,332 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:06,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:14:06,333 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-08 16:14:06,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:06,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1377705617, now seen corresponding path program 1 times [2024-11-08 16:14:06,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:06,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876679052] [2024-11-08 16:14:06,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:06,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:06,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:06,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 16:14:06,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:06,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876679052] [2024-11-08 16:14:06,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876679052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:06,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:06,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:14:06,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311773308] [2024-11-08 16:14:06,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:06,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:14:06,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:06,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:14:06,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:14:07,017 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 125 [2024-11-08 16:14:07,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 140 transitions, 415 flow. Second operand has 6 states, 6 states have (on average 102.16666666666667) internal successors, (613), 6 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:07,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:14:07,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 125 [2024-11-08 16:14:07,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:14:07,207 INFO L124 PetriNetUnfolderBase]: 107/621 cut-off events. [2024-11-08 16:14:07,207 INFO L125 PetriNetUnfolderBase]: For 106/108 co-relation queries the response was YES. [2024-11-08 16:14:07,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1144 conditions, 621 events. 107/621 cut-off events. For 106/108 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3272 event pairs, 26 based on Foata normal form. 0/591 useless extension candidates. Maximal degree in co-relation 1022. Up to 203 conditions per place. [2024-11-08 16:14:07,213 INFO L140 encePairwiseOnDemand]: 114/125 looper letters, 48 selfloop transitions, 21 changer transitions 7/170 dead transitions. [2024-11-08 16:14:07,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 170 transitions, 656 flow [2024-11-08 16:14:07,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:14:07,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:14:07,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 655 transitions. [2024-11-08 16:14:07,215 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8733333333333333 [2024-11-08 16:14:07,216 INFO L175 Difference]: Start difference. First operand has 133 places, 140 transitions, 415 flow. Second operand 6 states and 655 transitions. [2024-11-08 16:14:07,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 170 transitions, 656 flow [2024-11-08 16:14:07,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 170 transitions, 652 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:14:07,221 INFO L231 Difference]: Finished difference. Result has 141 places, 155 transitions, 572 flow [2024-11-08 16:14:07,222 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=411, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=572, PETRI_PLACES=141, PETRI_TRANSITIONS=155} [2024-11-08 16:14:07,222 INFO L277 CegarLoopForPetriNet]: 124 programPoint places, 17 predicate places. [2024-11-08 16:14:07,223 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 155 transitions, 572 flow [2024-11-08 16:14:07,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 102.16666666666667) internal successors, (613), 6 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:07,224 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:14:07,224 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:07,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:14:07,224 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-08 16:14:07,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:07,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1431252100, now seen corresponding path program 1 times [2024-11-08 16:14:07,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:07,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054045097] [2024-11-08 16:14:07,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:07,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:14:07,256 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:14:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:14:07,306 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 16:14:07,307 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:14:07,308 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-11-08 16:14:07,310 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-11-08 16:14:07,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-11-08 16:14:07,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-11-08 16:14:07,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-11-08 16:14:07,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-11-08 16:14:07,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2024-11-08 16:14:07,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-11-08 16:14:07,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-11-08 16:14:07,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-11-08 16:14:07,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2024-11-08 16:14:07,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-11-08 16:14:07,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-11-08 16:14:07,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-11-08 16:14:07,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-11-08 16:14:07,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:14:07,315 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:07,318 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 16:14:07,318 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 16:14:07,362 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 16:14:07,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 165 places, 165 transitions, 346 flow [2024-11-08 16:14:07,420 INFO L124 PetriNetUnfolderBase]: 11/276 cut-off events. [2024-11-08 16:14:07,421 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-11-08 16:14:07,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 288 conditions, 276 events. 11/276 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 624 event pairs, 0 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 164. Up to 8 conditions per place. [2024-11-08 16:14:07,424 INFO L82 GeneralOperation]: Start removeDead. Operand has 165 places, 165 transitions, 346 flow [2024-11-08 16:14:07,427 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 165 places, 165 transitions, 346 flow [2024-11-08 16:14:07,428 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:14:07,429 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7f5dee39, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:14:07,433 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-08 16:14:07,437 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:14:07,438 INFO L124 PetriNetUnfolderBase]: 1/32 cut-off events. [2024-11-08 16:14:07,438 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:14:07,438 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:14:07,439 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:07,439 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-08 16:14:07,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:07,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1507174742, now seen corresponding path program 1 times [2024-11-08 16:14:07,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:07,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3103199] [2024-11-08 16:14:07,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:07,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:07,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:07,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:14:07,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:07,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3103199] [2024-11-08 16:14:07,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3103199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:07,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:07,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:14:07,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477066154] [2024-11-08 16:14:07,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:07,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:14:07,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:07,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:14:07,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:14:07,509 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 165 [2024-11-08 16:14:07,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 165 transitions, 346 flow. Second operand has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:07,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:14:07,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 165 [2024-11-08 16:14:07,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:14:07,753 INFO L124 PetriNetUnfolderBase]: 91/1042 cut-off events. [2024-11-08 16:14:07,753 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-11-08 16:14:07,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1233 conditions, 1042 events. 91/1042 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6493 event pairs, 78 based on Foata normal form. 1/898 useless extension candidates. Maximal degree in co-relation 886. Up to 162 conditions per place. [2024-11-08 16:14:07,764 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 15 selfloop transitions, 2 changer transitions 1/163 dead transitions. [2024-11-08 16:14:07,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 163 transitions, 376 flow [2024-11-08 16:14:07,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:14:07,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:14:07,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 457 transitions. [2024-11-08 16:14:07,767 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9232323232323232 [2024-11-08 16:14:07,767 INFO L175 Difference]: Start difference. First operand has 165 places, 165 transitions, 346 flow. Second operand 3 states and 457 transitions. [2024-11-08 16:14:07,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 163 transitions, 376 flow [2024-11-08 16:14:07,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 163 transitions, 376 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:14:07,771 INFO L231 Difference]: Finished difference. Result has 166 places, 162 transitions, 344 flow [2024-11-08 16:14:07,771 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=166, PETRI_TRANSITIONS=162} [2024-11-08 16:14:07,772 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 1 predicate places. [2024-11-08 16:14:07,773 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 162 transitions, 344 flow [2024-11-08 16:14:07,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:07,774 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:14:07,774 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:07,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:14:07,774 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-08 16:14:07,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:07,775 INFO L85 PathProgramCache]: Analyzing trace with hash -344516612, now seen corresponding path program 1 times [2024-11-08 16:14:07,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:07,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386453333] [2024-11-08 16:14:07,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:07,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:07,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:07,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:14:07,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:07,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386453333] [2024-11-08 16:14:07,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386453333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:07,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:07,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:14:07,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937286370] [2024-11-08 16:14:07,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:07,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:14:07,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:07,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:14:07,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:14:07,848 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 165 [2024-11-08 16:14:07,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 162 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:07,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:14:07,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 165 [2024-11-08 16:14:07,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:14:08,072 INFO L124 PetriNetUnfolderBase]: 147/1121 cut-off events. [2024-11-08 16:14:08,072 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-11-08 16:14:08,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1404 conditions, 1121 events. 147/1121 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 7014 event pairs, 41 based on Foata normal form. 0/1019 useless extension candidates. Maximal degree in co-relation 1363. Up to 227 conditions per place. [2024-11-08 16:14:08,084 INFO L140 encePairwiseOnDemand]: 159/165 looper letters, 20 selfloop transitions, 3 changer transitions 0/167 dead transitions. [2024-11-08 16:14:08,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 167 transitions, 405 flow [2024-11-08 16:14:08,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:14:08,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:14:08,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 464 transitions. [2024-11-08 16:14:08,086 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9373737373737374 [2024-11-08 16:14:08,086 INFO L175 Difference]: Start difference. First operand has 166 places, 162 transitions, 344 flow. Second operand 3 states and 464 transitions. [2024-11-08 16:14:08,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 167 transitions, 405 flow [2024-11-08 16:14:08,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 167 transitions, 401 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:14:08,090 INFO L231 Difference]: Finished difference. Result has 163 places, 162 transitions, 355 flow [2024-11-08 16:14:08,090 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=355, PETRI_PLACES=163, PETRI_TRANSITIONS=162} [2024-11-08 16:14:08,091 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, -2 predicate places. [2024-11-08 16:14:08,091 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 162 transitions, 355 flow [2024-11-08 16:14:08,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:08,092 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:14:08,092 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:08,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 16:14:08,093 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-08 16:14:08,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:08,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1229823286, now seen corresponding path program 1 times [2024-11-08 16:14:08,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:08,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497754461] [2024-11-08 16:14:08,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:08,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:08,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:08,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:14:08,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:08,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497754461] [2024-11-08 16:14:08,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497754461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:08,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:08,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:14:08,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240756461] [2024-11-08 16:14:08,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:08,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:14:08,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:08,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:14:08,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:14:08,308 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 165 [2024-11-08 16:14:08,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 162 transitions, 355 flow. Second operand has 5 states, 5 states have (on average 144.6) internal successors, (723), 5 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:08,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:14:08,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 165 [2024-11-08 16:14:08,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:14:08,678 INFO L124 PetriNetUnfolderBase]: 190/2045 cut-off events. [2024-11-08 16:14:08,678 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2024-11-08 16:14:08,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2499 conditions, 2045 events. 190/2045 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 16233 event pairs, 64 based on Foata normal form. 1/1857 useless extension candidates. Maximal degree in co-relation 1086. Up to 308 conditions per place. [2024-11-08 16:14:08,694 INFO L140 encePairwiseOnDemand]: 156/165 looper letters, 22 selfloop transitions, 2 changer transitions 6/171 dead transitions. [2024-11-08 16:14:08,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 171 transitions, 433 flow [2024-11-08 16:14:08,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:14:08,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:14:08,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 889 transitions. [2024-11-08 16:14:08,697 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.897979797979798 [2024-11-08 16:14:08,697 INFO L175 Difference]: Start difference. First operand has 163 places, 162 transitions, 355 flow. Second operand 6 states and 889 transitions. [2024-11-08 16:14:08,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 171 transitions, 433 flow [2024-11-08 16:14:08,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 171 transitions, 433 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:14:08,701 INFO L231 Difference]: Finished difference. Result has 172 places, 163 transitions, 379 flow [2024-11-08 16:14:08,701 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=379, PETRI_PLACES=172, PETRI_TRANSITIONS=163} [2024-11-08 16:14:08,702 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 7 predicate places. [2024-11-08 16:14:08,702 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 163 transitions, 379 flow [2024-11-08 16:14:08,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 144.6) internal successors, (723), 5 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:08,703 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:14:08,703 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:08,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 16:14:08,704 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-08 16:14:08,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:08,704 INFO L85 PathProgramCache]: Analyzing trace with hash -2056910978, now seen corresponding path program 1 times [2024-11-08 16:14:08,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:08,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111227648] [2024-11-08 16:14:08,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:08,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:09,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:14:09,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:09,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111227648] [2024-11-08 16:14:09,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111227648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:09,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:09,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:14:09,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703875606] [2024-11-08 16:14:09,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:09,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:14:09,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:09,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:14:09,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:14:09,228 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 165 [2024-11-08 16:14:09,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 163 transitions, 379 flow. Second operand has 6 states, 6 states have (on average 131.5) internal successors, (789), 6 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:09,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:14:09,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 165 [2024-11-08 16:14:09,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:14:10,445 INFO L124 PetriNetUnfolderBase]: 1948/5637 cut-off events. [2024-11-08 16:14:10,445 INFO L125 PetriNetUnfolderBase]: For 318/318 co-relation queries the response was YES. [2024-11-08 16:14:10,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9317 conditions, 5637 events. 1948/5637 cut-off events. For 318/318 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 50416 event pairs, 968 based on Foata normal form. 0/5103 useless extension candidates. Maximal degree in co-relation 6075. Up to 2666 conditions per place. [2024-11-08 16:14:10,489 INFO L140 encePairwiseOnDemand]: 150/165 looper letters, 51 selfloop transitions, 38 changer transitions 0/217 dead transitions. [2024-11-08 16:14:10,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 217 transitions, 670 flow [2024-11-08 16:14:10,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:14:10,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:14:10,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 869 transitions. [2024-11-08 16:14:10,492 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8777777777777778 [2024-11-08 16:14:10,492 INFO L175 Difference]: Start difference. First operand has 172 places, 163 transitions, 379 flow. Second operand 6 states and 869 transitions. [2024-11-08 16:14:10,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 217 transitions, 670 flow [2024-11-08 16:14:10,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 217 transitions, 658 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-08 16:14:10,500 INFO L231 Difference]: Finished difference. Result has 175 places, 200 transitions, 621 flow [2024-11-08 16:14:10,501 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=621, PETRI_PLACES=175, PETRI_TRANSITIONS=200} [2024-11-08 16:14:10,501 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 10 predicate places. [2024-11-08 16:14:10,501 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 200 transitions, 621 flow [2024-11-08 16:14:10,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 131.5) internal successors, (789), 6 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:10,502 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:14:10,503 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:10,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 16:14:10,503 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-08 16:14:10,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:10,504 INFO L85 PathProgramCache]: Analyzing trace with hash -307863092, now seen corresponding path program 1 times [2024-11-08 16:14:10,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:10,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709407466] [2024-11-08 16:14:10,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:10,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:10,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:14:10,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:10,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709407466] [2024-11-08 16:14:10,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709407466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:10,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:10,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:14:10,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40445028] [2024-11-08 16:14:10,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:10,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:14:10,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:10,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:14:10,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:14:10,572 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 165 [2024-11-08 16:14:10,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 200 transitions, 621 flow. Second operand has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:10,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:14:10,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 165 [2024-11-08 16:14:10,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:14:11,429 INFO L124 PetriNetUnfolderBase]: 852/3915 cut-off events. [2024-11-08 16:14:11,430 INFO L125 PetriNetUnfolderBase]: For 719/881 co-relation queries the response was YES. [2024-11-08 16:14:11,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6900 conditions, 3915 events. 852/3915 cut-off events. For 719/881 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 36474 event pairs, 166 based on Foata normal form. 1/3609 useless extension candidates. Maximal degree in co-relation 5388. Up to 1089 conditions per place. [2024-11-08 16:14:11,475 INFO L140 encePairwiseOnDemand]: 151/165 looper letters, 29 selfloop transitions, 10 changer transitions 0/217 dead transitions. [2024-11-08 16:14:11,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 217 transitions, 744 flow [2024-11-08 16:14:11,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:14:11,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:14:11,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 469 transitions. [2024-11-08 16:14:11,478 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9474747474747475 [2024-11-08 16:14:11,478 INFO L175 Difference]: Start difference. First operand has 175 places, 200 transitions, 621 flow. Second operand 3 states and 469 transitions. [2024-11-08 16:14:11,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 217 transitions, 744 flow [2024-11-08 16:14:11,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 217 transitions, 744 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:14:11,498 INFO L231 Difference]: Finished difference. Result has 179 places, 210 transitions, 709 flow [2024-11-08 16:14:11,499 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=621, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=709, PETRI_PLACES=179, PETRI_TRANSITIONS=210} [2024-11-08 16:14:11,500 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 14 predicate places. [2024-11-08 16:14:11,501 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 210 transitions, 709 flow [2024-11-08 16:14:11,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:11,502 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:14:11,502 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:11,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 16:14:11,503 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-08 16:14:11,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:11,503 INFO L85 PathProgramCache]: Analyzing trace with hash 2059683377, now seen corresponding path program 1 times [2024-11-08 16:14:11,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:11,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590107648] [2024-11-08 16:14:11,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:11,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:11,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:11,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:14:11,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:11,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590107648] [2024-11-08 16:14:11,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590107648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:11,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:11,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:14:11,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629986906] [2024-11-08 16:14:11,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:11,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:14:11,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:11,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:14:11,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:14:11,613 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 165 [2024-11-08 16:14:11,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 210 transitions, 709 flow. Second operand has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:11,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:14:11,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 165 [2024-11-08 16:14:11,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:14:12,596 INFO L124 PetriNetUnfolderBase]: 960/4496 cut-off events. [2024-11-08 16:14:12,597 INFO L125 PetriNetUnfolderBase]: For 1005/1205 co-relation queries the response was YES. [2024-11-08 16:14:12,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8100 conditions, 4496 events. 960/4496 cut-off events. For 1005/1205 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 43321 event pairs, 179 based on Foata normal form. 9/4168 useless extension candidates. Maximal degree in co-relation 4646. Up to 1230 conditions per place. [2024-11-08 16:14:12,640 INFO L140 encePairwiseOnDemand]: 158/165 looper letters, 26 selfloop transitions, 9 changer transitions 0/221 dead transitions. [2024-11-08 16:14:12,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 221 transitions, 825 flow [2024-11-08 16:14:12,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:14:12,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:14:12,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2024-11-08 16:14:12,642 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9414141414141414 [2024-11-08 16:14:12,642 INFO L175 Difference]: Start difference. First operand has 179 places, 210 transitions, 709 flow. Second operand 3 states and 466 transitions. [2024-11-08 16:14:12,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 221 transitions, 825 flow [2024-11-08 16:14:12,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 221 transitions, 799 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:14:12,659 INFO L231 Difference]: Finished difference. Result has 181 places, 217 transitions, 765 flow [2024-11-08 16:14:12,659 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=765, PETRI_PLACES=181, PETRI_TRANSITIONS=217} [2024-11-08 16:14:12,660 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 16 predicate places. [2024-11-08 16:14:12,660 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 217 transitions, 765 flow [2024-11-08 16:14:12,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:12,661 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:14:12,661 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:12,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 16:14:12,662 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-08 16:14:12,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:12,663 INFO L85 PathProgramCache]: Analyzing trace with hash 312411982, now seen corresponding path program 1 times [2024-11-08 16:14:12,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:12,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853999397] [2024-11-08 16:14:12,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:12,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:12,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:13,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 16:14:13,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:13,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853999397] [2024-11-08 16:14:13,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853999397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:13,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:13,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:14:13,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751025858] [2024-11-08 16:14:13,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:13,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:14:13,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:13,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:14:13,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:14:13,245 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 165 [2024-11-08 16:14:13,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 217 transitions, 765 flow. Second operand has 6 states, 6 states have (on average 134.16666666666666) internal successors, (805), 6 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:13,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:14:13,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 165 [2024-11-08 16:14:13,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:14:15,703 INFO L124 PetriNetUnfolderBase]: 3485/12414 cut-off events. [2024-11-08 16:14:15,704 INFO L125 PetriNetUnfolderBase]: For 3167/3380 co-relation queries the response was YES. [2024-11-08 16:14:15,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25390 conditions, 12414 events. 3485/12414 cut-off events. For 3167/3380 co-relation queries the response was YES. Maximal size of possible extension queue 501. Compared 139710 event pairs, 1210 based on Foata normal form. 8/11539 useless extension candidates. Maximal degree in co-relation 23228. Up to 4790 conditions per place. [2024-11-08 16:14:15,836 INFO L140 encePairwiseOnDemand]: 150/165 looper letters, 84 selfloop transitions, 38 changer transitions 0/272 dead transitions. [2024-11-08 16:14:15,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 272 transitions, 1189 flow [2024-11-08 16:14:15,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:14:15,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:14:15,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 880 transitions. [2024-11-08 16:14:15,840 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2024-11-08 16:14:15,840 INFO L175 Difference]: Start difference. First operand has 181 places, 217 transitions, 765 flow. Second operand 6 states and 880 transitions. [2024-11-08 16:14:15,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 272 transitions, 1189 flow [2024-11-08 16:14:15,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 272 transitions, 1171 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:14:15,877 INFO L231 Difference]: Finished difference. Result has 189 places, 254 transitions, 1065 flow [2024-11-08 16:14:15,877 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=747, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1065, PETRI_PLACES=189, PETRI_TRANSITIONS=254} [2024-11-08 16:14:15,879 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 24 predicate places. [2024-11-08 16:14:15,879 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 254 transitions, 1065 flow [2024-11-08 16:14:15,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 134.16666666666666) internal successors, (805), 6 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:15,880 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:14:15,880 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:15,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 16:14:15,880 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-08 16:14:15,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:15,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1231631263, now seen corresponding path program 1 times [2024-11-08 16:14:15,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:15,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060977337] [2024-11-08 16:14:15,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:15,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:16,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:14:16,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:16,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060977337] [2024-11-08 16:14:16,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060977337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:16,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:16,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:14:16,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970041797] [2024-11-08 16:14:16,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:16,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:14:16,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:16,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:14:16,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:14:16,642 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 165 [2024-11-08 16:14:16,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 254 transitions, 1065 flow. Second operand has 6 states, 6 states have (on average 134.83333333333334) internal successors, (809), 6 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:16,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:14:16,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 165 [2024-11-08 16:14:16,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:14:20,140 INFO L124 PetriNetUnfolderBase]: 6354/20061 cut-off events. [2024-11-08 16:14:20,140 INFO L125 PetriNetUnfolderBase]: For 10046/12195 co-relation queries the response was YES. [2024-11-08 16:14:20,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48562 conditions, 20061 events. 6354/20061 cut-off events. For 10046/12195 co-relation queries the response was YES. Maximal size of possible extension queue 597. Compared 225246 event pairs, 1623 based on Foata normal form. 46/18598 useless extension candidates. Maximal degree in co-relation 42612. Up to 8072 conditions per place. [2024-11-08 16:14:20,309 INFO L140 encePairwiseOnDemand]: 146/165 looper letters, 139 selfloop transitions, 118 changer transitions 0/409 dead transitions. [2024-11-08 16:14:20,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 409 transitions, 2453 flow [2024-11-08 16:14:20,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:14:20,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:14:20,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 906 transitions. [2024-11-08 16:14:20,312 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9151515151515152 [2024-11-08 16:14:20,313 INFO L175 Difference]: Start difference. First operand has 189 places, 254 transitions, 1065 flow. Second operand 6 states and 906 transitions. [2024-11-08 16:14:20,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 409 transitions, 2453 flow [2024-11-08 16:14:20,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 409 transitions, 2321 flow, removed 66 selfloop flow, removed 0 redundant places. [2024-11-08 16:14:20,404 INFO L231 Difference]: Finished difference. Result has 198 places, 366 transitions, 2131 flow [2024-11-08 16:14:20,405 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=1001, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2131, PETRI_PLACES=198, PETRI_TRANSITIONS=366} [2024-11-08 16:14:20,406 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 33 predicate places. [2024-11-08 16:14:20,406 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 366 transitions, 2131 flow [2024-11-08 16:14:20,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 134.83333333333334) internal successors, (809), 6 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:20,407 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:14:20,407 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:20,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 16:14:20,407 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-08 16:14:20,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:20,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1525414758, now seen corresponding path program 1 times [2024-11-08 16:14:20,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:20,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436720389] [2024-11-08 16:14:20,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:20,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:20,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:20,459 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:14:20,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:20,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436720389] [2024-11-08 16:14:20,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436720389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:20,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:20,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:14:20,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098650547] [2024-11-08 16:14:20,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:20,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:14:20,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:20,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:14:20,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:14:20,490 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 165 [2024-11-08 16:14:20,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 366 transitions, 2131 flow. Second operand has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:20,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:14:20,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 165 [2024-11-08 16:14:20,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:14:23,423 INFO L124 PetriNetUnfolderBase]: 4342/15271 cut-off events. [2024-11-08 16:14:23,423 INFO L125 PetriNetUnfolderBase]: For 11134/12811 co-relation queries the response was YES. [2024-11-08 16:14:23,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41522 conditions, 15271 events. 4342/15271 cut-off events. For 11134/12811 co-relation queries the response was YES. Maximal size of possible extension queue 562. Compared 173312 event pairs, 353 based on Foata normal form. 18/14525 useless extension candidates. Maximal degree in co-relation 37384. Up to 3695 conditions per place. [2024-11-08 16:14:23,557 INFO L140 encePairwiseOnDemand]: 158/165 looper letters, 28 selfloop transitions, 11 changer transitions 0/376 dead transitions. [2024-11-08 16:14:23,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 376 transitions, 2246 flow [2024-11-08 16:14:23,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:14:23,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:14:23,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 465 transitions. [2024-11-08 16:14:23,559 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9393939393939394 [2024-11-08 16:14:23,559 INFO L175 Difference]: Start difference. First operand has 198 places, 366 transitions, 2131 flow. Second operand 3 states and 465 transitions. [2024-11-08 16:14:23,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 376 transitions, 2246 flow [2024-11-08 16:14:23,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 376 transitions, 2210 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-11-08 16:14:23,986 INFO L231 Difference]: Finished difference. Result has 202 places, 373 transitions, 2183 flow [2024-11-08 16:14:23,987 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=2095, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2183, PETRI_PLACES=202, PETRI_TRANSITIONS=373} [2024-11-08 16:14:23,987 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 37 predicate places. [2024-11-08 16:14:23,988 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 373 transitions, 2183 flow [2024-11-08 16:14:23,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:23,988 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:14:23,989 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:23,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 16:14:23,989 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-08 16:14:23,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:23,990 INFO L85 PathProgramCache]: Analyzing trace with hash 2061472761, now seen corresponding path program 1 times [2024-11-08 16:14:23,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:23,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615575259] [2024-11-08 16:14:23,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:23,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:14:24,019 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:14:24,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:14:24,048 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 16:14:24,048 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:14:24,049 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-11-08 16:14:24,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-11-08 16:14:24,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-11-08 16:14:24,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-11-08 16:14:24,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-11-08 16:14:24,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-11-08 16:14:24,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2024-11-08 16:14:24,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-11-08 16:14:24,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-11-08 16:14:24,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-11-08 16:14:24,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-11-08 16:14:24,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-11-08 16:14:24,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-11-08 16:14:24,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-11-08 16:14:24,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-11-08 16:14:24,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-11-08 16:14:24,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-11-08 16:14:24,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-11-08 16:14:24,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-11-08 16:14:24,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-11-08 16:14:24,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 16:14:24,054 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:24,055 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 16:14:24,055 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-08 16:14:24,094 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-08 16:14:24,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 206 places, 205 transitions, 437 flow [2024-11-08 16:14:24,175 INFO L124 PetriNetUnfolderBase]: 21/445 cut-off events. [2024-11-08 16:14:24,175 INFO L125 PetriNetUnfolderBase]: For 19/21 co-relation queries the response was YES. [2024-11-08 16:14:24,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 470 conditions, 445 events. 21/445 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1341 event pairs, 1 based on Foata normal form. 0/384 useless extension candidates. Maximal degree in co-relation 284. Up to 16 conditions per place. [2024-11-08 16:14:24,177 INFO L82 GeneralOperation]: Start removeDead. Operand has 206 places, 205 transitions, 437 flow [2024-11-08 16:14:24,181 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 206 places, 205 transitions, 437 flow [2024-11-08 16:14:24,183 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:14:24,183 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7f5dee39, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:14:24,183 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-08 16:14:24,188 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:14:24,188 INFO L124 PetriNetUnfolderBase]: 1/32 cut-off events. [2024-11-08 16:14:24,188 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:14:24,188 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:14:24,189 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:24,189 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 16:14:24,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:24,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1936984855, now seen corresponding path program 1 times [2024-11-08 16:14:24,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:24,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854306171] [2024-11-08 16:14:24,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:24,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:24,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:24,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:14:24,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:24,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854306171] [2024-11-08 16:14:24,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854306171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:24,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:24,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:14:24,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620403119] [2024-11-08 16:14:24,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:24,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:14:24,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:24,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:14:24,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:14:24,243 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 205 [2024-11-08 16:14:24,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 205 transitions, 437 flow. Second operand has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:24,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:14:24,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 205 [2024-11-08 16:14:24,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:14:25,347 INFO L124 PetriNetUnfolderBase]: 692/5171 cut-off events. [2024-11-08 16:14:25,348 INFO L125 PetriNetUnfolderBase]: For 337/337 co-relation queries the response was YES. [2024-11-08 16:14:25,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6382 conditions, 5171 events. 692/5171 cut-off events. For 337/337 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 51492 event pairs, 643 based on Foata normal form. 1/4473 useless extension candidates. Maximal degree in co-relation 4764. Up to 1052 conditions per place. [2024-11-08 16:14:25,400 INFO L140 encePairwiseOnDemand]: 201/205 looper letters, 20 selfloop transitions, 2 changer transitions 1/203 dead transitions. [2024-11-08 16:14:25,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 203 transitions, 477 flow [2024-11-08 16:14:25,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:14:25,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:14:25,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 567 transitions. [2024-11-08 16:14:25,403 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9219512195121952 [2024-11-08 16:14:25,403 INFO L175 Difference]: Start difference. First operand has 206 places, 205 transitions, 437 flow. Second operand 3 states and 567 transitions. [2024-11-08 16:14:25,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 203 transitions, 477 flow [2024-11-08 16:14:25,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 203 transitions, 477 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:14:25,408 INFO L231 Difference]: Finished difference. Result has 207 places, 202 transitions, 435 flow [2024-11-08 16:14:25,409 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=433, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=435, PETRI_PLACES=207, PETRI_TRANSITIONS=202} [2024-11-08 16:14:25,409 INFO L277 CegarLoopForPetriNet]: 206 programPoint places, 1 predicate places. [2024-11-08 16:14:25,410 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 202 transitions, 435 flow [2024-11-08 16:14:25,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:25,410 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:14:25,411 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:25,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 16:14:25,411 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 16:14:25,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:25,412 INFO L85 PathProgramCache]: Analyzing trace with hash -547298788, now seen corresponding path program 1 times [2024-11-08 16:14:25,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:25,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622893721] [2024-11-08 16:14:25,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:25,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:25,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:14:25,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:25,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622893721] [2024-11-08 16:14:25,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622893721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:25,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:25,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:14:25,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283806117] [2024-11-08 16:14:25,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:25,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:14:25,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:25,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:14:25,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:14:25,475 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 205 [2024-11-08 16:14:25,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 202 transitions, 435 flow. Second operand has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:25,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:14:25,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 205 [2024-11-08 16:14:25,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:14:26,841 INFO L124 PetriNetUnfolderBase]: 1347/6982 cut-off events. [2024-11-08 16:14:26,841 INFO L125 PetriNetUnfolderBase]: For 527/527 co-relation queries the response was YES. [2024-11-08 16:14:26,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9180 conditions, 6982 events. 1347/6982 cut-off events. For 527/527 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 70797 event pairs, 675 based on Foata normal form. 0/6424 useless extension candidates. Maximal degree in co-relation 9138. Up to 1872 conditions per place. [2024-11-08 16:14:26,906 INFO L140 encePairwiseOnDemand]: 197/205 looper letters, 29 selfloop transitions, 4 changer transitions 0/210 dead transitions. [2024-11-08 16:14:26,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 210 transitions, 529 flow [2024-11-08 16:14:26,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:14:26,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:14:26,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 574 transitions. [2024-11-08 16:14:26,909 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9333333333333333 [2024-11-08 16:14:26,909 INFO L175 Difference]: Start difference. First operand has 207 places, 202 transitions, 435 flow. Second operand 3 states and 574 transitions. [2024-11-08 16:14:26,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 210 transitions, 529 flow [2024-11-08 16:14:26,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 210 transitions, 525 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:14:26,913 INFO L231 Difference]: Finished difference. Result has 203 places, 202 transitions, 451 flow [2024-11-08 16:14:26,914 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=451, PETRI_PLACES=203, PETRI_TRANSITIONS=202} [2024-11-08 16:14:26,914 INFO L277 CegarLoopForPetriNet]: 206 programPoint places, -3 predicate places. [2024-11-08 16:14:26,915 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 202 transitions, 451 flow [2024-11-08 16:14:26,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:26,915 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:14:26,915 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:26,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 16:14:26,916 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 16:14:26,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:26,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1129760189, now seen corresponding path program 1 times [2024-11-08 16:14:26,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:26,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962943689] [2024-11-08 16:14:26,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:26,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:26,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:26,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:14:26,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:26,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962943689] [2024-11-08 16:14:26,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962943689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:26,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:26,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:14:26,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470468532] [2024-11-08 16:14:26,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:26,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:14:26,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:26,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:14:26,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:14:27,089 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 205 [2024-11-08 16:14:27,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 202 transitions, 451 flow. Second operand has 5 states, 5 states have (on average 180.6) internal successors, (903), 5 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:27,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:14:27,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 205 [2024-11-08 16:14:27,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:14:28,629 INFO L124 PetriNetUnfolderBase]: 1132/10839 cut-off events. [2024-11-08 16:14:28,630 INFO L125 PetriNetUnfolderBase]: For 271/271 co-relation queries the response was YES. [2024-11-08 16:14:28,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13148 conditions, 10839 events. 1132/10839 cut-off events. For 271/271 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 126379 event pairs, 601 based on Foata normal form. 1/9757 useless extension candidates. Maximal degree in co-relation 5161. Up to 1536 conditions per place. [2024-11-08 16:14:28,693 INFO L140 encePairwiseOnDemand]: 196/205 looper letters, 26 selfloop transitions, 2 changer transitions 6/211 dead transitions. [2024-11-08 16:14:28,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 211 transitions, 537 flow [2024-11-08 16:14:28,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:14:28,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:14:28,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1109 transitions. [2024-11-08 16:14:28,696 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9016260162601626 [2024-11-08 16:14:28,697 INFO L175 Difference]: Start difference. First operand has 203 places, 202 transitions, 451 flow. Second operand 6 states and 1109 transitions. [2024-11-08 16:14:28,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 211 transitions, 537 flow [2024-11-08 16:14:28,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 211 transitions, 537 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:14:28,701 INFO L231 Difference]: Finished difference. Result has 212 places, 203 transitions, 475 flow [2024-11-08 16:14:28,701 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=451, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=475, PETRI_PLACES=212, PETRI_TRANSITIONS=203} [2024-11-08 16:14:28,702 INFO L277 CegarLoopForPetriNet]: 206 programPoint places, 6 predicate places. [2024-11-08 16:14:28,702 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 203 transitions, 475 flow [2024-11-08 16:14:28,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 180.6) internal successors, (903), 5 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:28,703 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:14:28,703 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:28,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 16:14:28,703 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 16:14:28,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:28,704 INFO L85 PathProgramCache]: Analyzing trace with hash -121527157, now seen corresponding path program 1 times [2024-11-08 16:14:28,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:28,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181000375] [2024-11-08 16:14:28,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:28,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:28,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:14:28,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:28,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181000375] [2024-11-08 16:14:28,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181000375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:28,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:28,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:14:28,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342685463] [2024-11-08 16:14:28,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:28,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:14:28,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:28,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:14:28,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:14:29,225 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 205 [2024-11-08 16:14:29,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 203 transitions, 475 flow. Second operand has 6 states, 6 states have (on average 163.5) internal successors, (981), 6 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:29,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:14:29,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 205 [2024-11-08 16:14:29,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:14:38,954 INFO L124 PetriNetUnfolderBase]: 24921/64905 cut-off events. [2024-11-08 16:14:38,954 INFO L125 PetriNetUnfolderBase]: For 3774/3791 co-relation queries the response was YES. [2024-11-08 16:14:39,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104505 conditions, 64905 events. 24921/64905 cut-off events. For 3774/3791 co-relation queries the response was YES. Maximal size of possible extension queue 1882. Compared 802968 event pairs, 14371 based on Foata normal form. 0/58804 useless extension candidates. Maximal degree in co-relation 104304. Up to 30781 conditions per place. [2024-11-08 16:14:39,444 INFO L140 encePairwiseOnDemand]: 186/205 looper letters, 68 selfloop transitions, 54 changer transitions 0/282 dead transitions. [2024-11-08 16:14:39,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 282 transitions, 889 flow [2024-11-08 16:14:39,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:14:39,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:14:39,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1094 transitions. [2024-11-08 16:14:39,447 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8894308943089431 [2024-11-08 16:14:39,448 INFO L175 Difference]: Start difference. First operand has 212 places, 203 transitions, 475 flow. Second operand 6 states and 1094 transitions. [2024-11-08 16:14:39,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 282 transitions, 889 flow [2024-11-08 16:14:39,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 282 transitions, 877 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-08 16:14:39,470 INFO L231 Difference]: Finished difference. Result has 215 places, 256 transitions, 821 flow [2024-11-08 16:14:39,470 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=463, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=821, PETRI_PLACES=215, PETRI_TRANSITIONS=256} [2024-11-08 16:14:39,471 INFO L277 CegarLoopForPetriNet]: 206 programPoint places, 9 predicate places. [2024-11-08 16:14:39,471 INFO L471 AbstractCegarLoop]: Abstraction has has 215 places, 256 transitions, 821 flow [2024-11-08 16:14:39,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.5) internal successors, (981), 6 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:39,472 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:14:39,472 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:39,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 16:14:39,473 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 16:14:39,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:39,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1830339534, now seen corresponding path program 1 times [2024-11-08 16:14:39,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:39,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470516037] [2024-11-08 16:14:39,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:39,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:39,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:14:39,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:39,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470516037] [2024-11-08 16:14:39,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470516037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:39,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:39,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:14:39,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911828671] [2024-11-08 16:14:39,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:39,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:14:39,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:39,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:14:39,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:14:39,556 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 205 [2024-11-08 16:14:39,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 256 transitions, 821 flow. Second operand has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:39,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:14:39,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 205 [2024-11-08 16:14:39,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:14:49,834 INFO L124 PetriNetUnfolderBase]: 19729/64409 cut-off events. [2024-11-08 16:14:49,834 INFO L125 PetriNetUnfolderBase]: For 16082/19907 co-relation queries the response was YES. [2024-11-08 16:14:50,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117977 conditions, 64409 events. 19729/64409 cut-off events. For 16082/19907 co-relation queries the response was YES. Maximal size of possible extension queue 2197. Compared 892133 event pairs, 5642 based on Foata normal form. 15/58605 useless extension candidates. Maximal degree in co-relation 84622. Up to 20821 conditions per place. [2024-11-08 16:14:50,659 INFO L140 encePairwiseOnDemand]: 184/205 looper letters, 44 selfloop transitions, 15 changer transitions 0/282 dead transitions. [2024-11-08 16:14:50,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 282 transitions, 1012 flow [2024-11-08 16:14:50,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:14:50,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:14:50,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 578 transitions. [2024-11-08 16:14:50,661 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9398373983739837 [2024-11-08 16:14:50,661 INFO L175 Difference]: Start difference. First operand has 215 places, 256 transitions, 821 flow. Second operand 3 states and 578 transitions. [2024-11-08 16:14:50,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 282 transitions, 1012 flow [2024-11-08 16:14:51,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 282 transitions, 1012 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:14:51,242 INFO L231 Difference]: Finished difference. Result has 219 places, 271 transitions, 953 flow [2024-11-08 16:14:51,242 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=821, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=953, PETRI_PLACES=219, PETRI_TRANSITIONS=271} [2024-11-08 16:14:51,243 INFO L277 CegarLoopForPetriNet]: 206 programPoint places, 13 predicate places. [2024-11-08 16:14:51,243 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 271 transitions, 953 flow [2024-11-08 16:14:51,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:51,243 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:14:51,243 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:51,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 16:14:51,243 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-08 16:14:51,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:51,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1076770583, now seen corresponding path program 1 times [2024-11-08 16:14:51,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:51,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138647266] [2024-11-08 16:14:51,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:51,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:51,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:14:51,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:51,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138647266] [2024-11-08 16:14:51,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138647266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:51,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:51,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:14:51,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015400468] [2024-11-08 16:14:51,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:51,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:14:51,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:51,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:14:51,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:14:51,333 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 205 [2024-11-08 16:14:51,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 271 transitions, 953 flow. Second operand has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:14:51,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:14:51,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 205 [2024-11-08 16:14:51,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand