./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_688054ab-a721-442c-8440-46f09b88d367/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688054ab-a721-442c-8440-46f09b88d367/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688054ab-a721-442c-8440-46f09b88d367/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688054ab-a721-442c-8440-46f09b88d367/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688054ab-a721-442c-8440-46f09b88d367/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688054ab-a721-442c-8440-46f09b88d367/bin/uautomizer-verify-VRDe98Ueme --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 3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:44:45,227 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:44:45,333 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688054ab-a721-442c-8440-46f09b88d367/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 11:44:45,343 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:44:45,344 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:44:45,394 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:44:45,395 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:44:45,395 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:44:45,397 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:44:45,402 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:44:45,404 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:44:45,405 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:44:45,405 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:44:45,408 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:44:45,412 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:44:45,413 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:44:45,413 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:44:45,414 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:44:45,414 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:44:45,415 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:44:45,415 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:44:45,416 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:44:45,416 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 11:44:45,417 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:44:45,417 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:44:45,418 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:44:45,418 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:44:45,419 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:44:45,420 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:44:45,420 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:44:45,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:44:45,422 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:44:45,422 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:44:45,423 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:44:45,423 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:44:45,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:44:45,423 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:44:45,424 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:44:45,424 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:44:45,424 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:44:45,424 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:44:45,428 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_688054ab-a721-442c-8440-46f09b88d367/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688054ab-a721-442c-8440-46f09b88d367/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0 [2023-11-26 11:44:45,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:44:45,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:44:45,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:44:45,790 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:44:45,791 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:44:45,792 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688054ab-a721-442c-8440-46f09b88d367/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2023-11-26 11:44:49,159 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:44:49,518 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:44:49,519 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688054ab-a721-442c-8440-46f09b88d367/sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2023-11-26 11:44:49,530 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688054ab-a721-442c-8440-46f09b88d367/bin/uautomizer-verify-VRDe98Ueme/data/56900b136/6b6371653dcc44a8b13a51bd399731ec/FLAGcc984be73 [2023-11-26 11:44:49,547 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688054ab-a721-442c-8440-46f09b88d367/bin/uautomizer-verify-VRDe98Ueme/data/56900b136/6b6371653dcc44a8b13a51bd399731ec [2023-11-26 11:44:49,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:44:49,552 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:44:49,554 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:44:49,554 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:44:49,561 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:44:49,562 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:44:49" (1/1) ... [2023-11-26 11:44:49,564 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1977be1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:49, skipping insertion in model container [2023-11-26 11:44:49,564 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:44:49" (1/1) ... [2023-11-26 11:44:49,597 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:44:49,906 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:44:49,921 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:44:50,011 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:44:50,039 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:44:50,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:50 WrapperNode [2023-11-26 11:44:50,040 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:44:50,042 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:44:50,043 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:44:50,043 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:44:50,054 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:50" (1/1) ... [2023-11-26 11:44:50,093 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:50" (1/1) ... [2023-11-26 11:44:50,177 INFO L138 Inliner]: procedures = 27, calls = 67, calls flagged for inlining = 23, calls inlined = 35, statements flattened = 827 [2023-11-26 11:44:50,177 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:44:50,178 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:44:50,179 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:44:50,179 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:44:50,193 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:50" (1/1) ... [2023-11-26 11:44:50,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:50" (1/1) ... [2023-11-26 11:44:50,222 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:50" (1/1) ... [2023-11-26 11:44:50,223 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:50" (1/1) ... [2023-11-26 11:44:50,270 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:50" (1/1) ... [2023-11-26 11:44:50,280 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:50" (1/1) ... [2023-11-26 11:44:50,287 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:50" (1/1) ... [2023-11-26 11:44:50,292 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:50" (1/1) ... [2023-11-26 11:44:50,305 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:44:50,306 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:44:50,307 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:44:50,307 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:44:50,308 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:50" (1/1) ... [2023-11-26 11:44:50,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:44:50,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688054ab-a721-442c-8440-46f09b88d367/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:50,367 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688054ab-a721-442c-8440-46f09b88d367/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:44:50,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688054ab-a721-442c-8440-46f09b88d367/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:44:50,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:44:50,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:44:50,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 11:44:50,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 11:44:50,461 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 11:44:50,462 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 11:44:50,462 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 11:44:50,463 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 11:44:50,464 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-26 11:44:50,464 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-26 11:44:50,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 11:44:50,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:44:50,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:44:50,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:44:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:44:50,471 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 11:44:50,723 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:44:50,726 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:44:52,439 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:44:52,487 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:44:52,487 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-26 11:44:52,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:44:52 BoogieIcfgContainer [2023-11-26 11:44:52,490 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:44:52,493 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:44:52,493 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:44:52,501 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:44:52,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:44:49" (1/3) ... [2023-11-26 11:44:52,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4632fde7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:44:52, skipping insertion in model container [2023-11-26 11:44:52,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:50" (2/3) ... [2023-11-26 11:44:52,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4632fde7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:44:52, skipping insertion in model container [2023-11-26 11:44:52,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:44:52" (3/3) ... [2023-11-26 11:44:52,512 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-subst.wvr.c [2023-11-26 11:44:52,523 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:44:52,534 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:44:52,535 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 119 error locations. [2023-11-26 11:44:52,535 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:44:52,821 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-26 11:44:52,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1043 places, 1081 transitions, 2183 flow [2023-11-26 11:44:53,840 INFO L124 PetriNetUnfolderBase]: 48/1078 cut-off events. [2023-11-26 11:44:53,841 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 11:44:53,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1091 conditions, 1078 events. 48/1078 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2239 event pairs, 0 based on Foata normal form. 0/911 useless extension candidates. Maximal degree in co-relation 852. Up to 2 conditions per place. [2023-11-26 11:44:53,876 INFO L82 GeneralOperation]: Start removeDead. Operand has 1043 places, 1081 transitions, 2183 flow [2023-11-26 11:44:53,912 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1014 places, 1049 transitions, 2116 flow [2023-11-26 11:44:53,933 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:44:53,943 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@95c9e20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:44:53,943 INFO L358 AbstractCegarLoop]: Starting to check reachability of 197 error locations. [2023-11-26 11:44:53,953 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:44:53,953 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2023-11-26 11:44:53,954 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:44:53,954 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:53,955 INFO L208 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] [2023-11-26 11:44:53,956 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-26 11:44:53,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:53,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1359890543, now seen corresponding path program 1 times [2023-11-26 11:44:53,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:53,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722110470] [2023-11-26 11:44:53,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:53,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:54,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:54,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:54,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:54,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722110470] [2023-11-26 11:44:54,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722110470] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:54,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:54,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:54,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432004661] [2023-11-26 11:44:54,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:54,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:54,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:54,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:54,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:54,612 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1028 out of 1081 [2023-11-26 11:44:54,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1014 places, 1049 transitions, 2116 flow. Second operand has 3 states, 3 states have (on average 1029.3333333333333) internal successors, (3088), 3 states have internal predecessors, (3088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:54,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:54,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1028 of 1081 [2023-11-26 11:44:54,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:56,374 INFO L124 PetriNetUnfolderBase]: 86/2529 cut-off events. [2023-11-26 11:44:56,374 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2023-11-26 11:44:56,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2672 conditions, 2529 events. 86/2529 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 14487 event pairs, 39 based on Foata normal form. 70/2145 useless extension candidates. Maximal degree in co-relation 1944. Up to 89 conditions per place. [2023-11-26 11:44:56,460 INFO L140 encePairwiseOnDemand]: 1050/1081 looper letters, 19 selfloop transitions, 2 changer transitions 16/1020 dead transitions. [2023-11-26 11:44:56,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1015 places, 1020 transitions, 2100 flow [2023-11-26 11:44:56,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:56,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:56,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3134 transitions. [2023-11-26 11:44:56,493 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9663891458526056 [2023-11-26 11:44:56,494 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3134 transitions. [2023-11-26 11:44:56,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3134 transitions. [2023-11-26 11:44:56,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:56,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3134 transitions. [2023-11-26 11:44:56,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1044.6666666666667) internal successors, (3134), 3 states have internal predecessors, (3134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:56,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:56,541 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:56,543 INFO L175 Difference]: Start difference. First operand has 1014 places, 1049 transitions, 2116 flow. Second operand 3 states and 3134 transitions. [2023-11-26 11:44:56,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1015 places, 1020 transitions, 2100 flow [2023-11-26 11:44:56,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1009 places, 1020 transitions, 2088 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-26 11:44:56,589 INFO L231 Difference]: Finished difference. Result has 1009 places, 1004 transitions, 2018 flow [2023-11-26 11:44:56,593 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=2046, PETRI_DIFFERENCE_MINUEND_PLACES=1007, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1020, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1018, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2018, PETRI_PLACES=1009, PETRI_TRANSITIONS=1004} [2023-11-26 11:44:56,597 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -5 predicate places. [2023-11-26 11:44:56,597 INFO L495 AbstractCegarLoop]: Abstraction has has 1009 places, 1004 transitions, 2018 flow [2023-11-26 11:44:56,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1029.3333333333333) internal successors, (3088), 3 states have internal predecessors, (3088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:56,600 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:56,601 INFO L208 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] [2023-11-26 11:44:56,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:44:56,602 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-26 11:44:56,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:56,602 INFO L85 PathProgramCache]: Analyzing trace with hash -328154300, now seen corresponding path program 1 times [2023-11-26 11:44:56,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:56,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156682229] [2023-11-26 11:44:56,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:56,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:56,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:56,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:56,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156682229] [2023-11-26 11:44:56,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156682229] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:56,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:56,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:56,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068400487] [2023-11-26 11:44:56,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:56,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:56,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:56,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:56,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:56,812 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1014 out of 1081 [2023-11-26 11:44:56,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1009 places, 1004 transitions, 2018 flow. Second operand has 3 states, 3 states have (on average 1015.0) internal successors, (3045), 3 states have internal predecessors, (3045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:56,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:56,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1014 of 1081 [2023-11-26 11:44:56,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:58,627 INFO L124 PetriNetUnfolderBase]: 212/4005 cut-off events. [2023-11-26 11:44:58,627 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-26 11:44:58,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4325 conditions, 4005 events. 212/4005 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 30022 event pairs, 132 based on Foata normal form. 0/3358 useless extension candidates. Maximal degree in co-relation 4282. Up to 257 conditions per place. [2023-11-26 11:44:58,735 INFO L140 encePairwiseOnDemand]: 1070/1081 looper letters, 26 selfloop transitions, 1 changer transitions 0/994 dead transitions. [2023-11-26 11:44:58,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 985 places, 994 transitions, 2052 flow [2023-11-26 11:44:58,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:58,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:58,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3079 transitions. [2023-11-26 11:44:58,753 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9494295405488745 [2023-11-26 11:44:58,753 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3079 transitions. [2023-11-26 11:44:58,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3079 transitions. [2023-11-26 11:44:58,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:58,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3079 transitions. [2023-11-26 11:44:58,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1026.3333333333333) internal successors, (3079), 3 states have internal predecessors, (3079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:58,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:58,782 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:58,783 INFO L175 Difference]: Start difference. First operand has 1009 places, 1004 transitions, 2018 flow. Second operand 3 states and 3079 transitions. [2023-11-26 11:44:58,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 985 places, 994 transitions, 2052 flow [2023-11-26 11:44:58,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 983 places, 994 transitions, 2048 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:58,811 INFO L231 Difference]: Finished difference. Result has 983 places, 994 transitions, 1996 flow [2023-11-26 11:44:58,814 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1994, PETRI_DIFFERENCE_MINUEND_PLACES=981, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=994, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=993, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1996, PETRI_PLACES=983, PETRI_TRANSITIONS=994} [2023-11-26 11:44:58,815 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -31 predicate places. [2023-11-26 11:44:58,815 INFO L495 AbstractCegarLoop]: Abstraction has has 983 places, 994 transitions, 1996 flow [2023-11-26 11:44:58,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1015.0) internal successors, (3045), 3 states have internal predecessors, (3045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:58,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:58,822 INFO L208 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] [2023-11-26 11:44:58,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:44:58,823 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-26 11:44:58,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:58,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1092830789, now seen corresponding path program 1 times [2023-11-26 11:44:58,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:58,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161801342] [2023-11-26 11:44:58,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:58,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:58,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:58,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:58,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161801342] [2023-11-26 11:44:58,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161801342] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:58,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:58,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:58,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349620354] [2023-11-26 11:44:58,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:58,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:58,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:58,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:58,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:59,081 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1028 out of 1081 [2023-11-26 11:44:59,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 983 places, 994 transitions, 1996 flow. Second operand has 3 states, 3 states have (on average 1029.3333333333333) internal successors, (3088), 3 states have internal predecessors, (3088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:59,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:59,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1028 of 1081 [2023-11-26 11:44:59,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:45:00,057 INFO L124 PetriNetUnfolderBase]: 62/2253 cut-off events. [2023-11-26 11:45:00,058 INFO L125 PetriNetUnfolderBase]: For 9/11 co-relation queries the response was YES. [2023-11-26 11:45:00,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2329 conditions, 2253 events. 62/2253 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 11422 event pairs, 21 based on Foata normal form. 0/1881 useless extension candidates. Maximal degree in co-relation 2286. Up to 62 conditions per place. [2023-11-26 11:45:00,124 INFO L140 encePairwiseOnDemand]: 1078/1081 looper letters, 19 selfloop transitions, 2 changer transitions 0/993 dead transitions. [2023-11-26 11:45:00,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 984 places, 993 transitions, 2036 flow [2023-11-26 11:45:00,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:00,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:45:00,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3106 transitions. [2023-11-26 11:45:00,136 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9577551649707061 [2023-11-26 11:45:00,136 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3106 transitions. [2023-11-26 11:45:00,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3106 transitions. [2023-11-26 11:45:00,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:45:00,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3106 transitions. [2023-11-26 11:45:00,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1035.3333333333333) internal successors, (3106), 3 states have internal predecessors, (3106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:00,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:00,166 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:00,167 INFO L175 Difference]: Start difference. First operand has 983 places, 994 transitions, 1996 flow. Second operand 3 states and 3106 transitions. [2023-11-26 11:45:00,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 984 places, 993 transitions, 2036 flow [2023-11-26 11:45:00,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 983 places, 993 transitions, 2035 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:45:00,193 INFO L231 Difference]: Finished difference. Result has 983 places, 993 transitions, 1997 flow [2023-11-26 11:45:00,195 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1993, PETRI_DIFFERENCE_MINUEND_PLACES=981, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=993, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=991, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1997, PETRI_PLACES=983, PETRI_TRANSITIONS=993} [2023-11-26 11:45:00,196 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -31 predicate places. [2023-11-26 11:45:00,197 INFO L495 AbstractCegarLoop]: Abstraction has has 983 places, 993 transitions, 1997 flow [2023-11-26 11:45:00,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1029.3333333333333) internal successors, (3088), 3 states have internal predecessors, (3088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:00,200 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:45:00,201 INFO L208 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] [2023-11-26 11:45:00,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:45:00,201 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-26 11:45:00,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:00,202 INFO L85 PathProgramCache]: Analyzing trace with hash -659403950, now seen corresponding path program 1 times [2023-11-26 11:45:00,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:00,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306721471] [2023-11-26 11:45:00,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:00,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:00,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:00,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:00,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:00,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306721471] [2023-11-26 11:45:00,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306721471] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:00,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:00,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:45:00,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705337237] [2023-11-26 11:45:00,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:00,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:45:00,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:00,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:45:00,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:00,322 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1014 out of 1081 [2023-11-26 11:45:00,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 983 places, 993 transitions, 1997 flow. Second operand has 3 states, 3 states have (on average 1015.0) internal successors, (3045), 3 states have internal predecessors, (3045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:00,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:45:00,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1014 of 1081 [2023-11-26 11:45:00,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:45:01,850 INFO L124 PetriNetUnfolderBase]: 119/2801 cut-off events. [2023-11-26 11:45:01,851 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-26 11:45:01,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2972 conditions, 2801 events. 119/2801 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 16637 event pairs, 60 based on Foata normal form. 0/2371 useless extension candidates. Maximal degree in co-relation 2930. Up to 149 conditions per place. [2023-11-26 11:45:01,978 INFO L140 encePairwiseOnDemand]: 1070/1081 looper letters, 26 selfloop transitions, 1 changer transitions 0/983 dead transitions. [2023-11-26 11:45:01,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 975 places, 983 transitions, 2031 flow [2023-11-26 11:45:01,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:01,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:45:01,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3079 transitions. [2023-11-26 11:45:01,990 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9494295405488745 [2023-11-26 11:45:01,991 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3079 transitions. [2023-11-26 11:45:01,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3079 transitions. [2023-11-26 11:45:01,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:45:01,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3079 transitions. [2023-11-26 11:45:02,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1026.3333333333333) internal successors, (3079), 3 states have internal predecessors, (3079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:02,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:02,035 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:02,037 INFO L175 Difference]: Start difference. First operand has 983 places, 993 transitions, 1997 flow. Second operand 3 states and 3079 transitions. [2023-11-26 11:45:02,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 975 places, 983 transitions, 2031 flow [2023-11-26 11:45:02,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 973 places, 983 transitions, 2027 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:45:02,065 INFO L231 Difference]: Finished difference. Result has 973 places, 983 transitions, 1975 flow [2023-11-26 11:45:02,067 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1973, PETRI_DIFFERENCE_MINUEND_PLACES=971, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=983, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=982, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1975, PETRI_PLACES=973, PETRI_TRANSITIONS=983} [2023-11-26 11:45:02,069 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -41 predicate places. [2023-11-26 11:45:02,070 INFO L495 AbstractCegarLoop]: Abstraction has has 973 places, 983 transitions, 1975 flow [2023-11-26 11:45:02,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1015.0) internal successors, (3045), 3 states have internal predecessors, (3045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:02,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:45:02,072 INFO L208 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] [2023-11-26 11:45:02,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:45:02,073 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-26 11:45:02,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:02,074 INFO L85 PathProgramCache]: Analyzing trace with hash -675579994, now seen corresponding path program 1 times [2023-11-26 11:45:02,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:02,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669042708] [2023-11-26 11:45:02,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:02,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:02,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:02,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:02,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:02,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669042708] [2023-11-26 11:45:02,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669042708] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:02,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:02,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:45:02,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706990439] [2023-11-26 11:45:02,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:02,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:45:02,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:02,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:45:02,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:02,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1028 out of 1081 [2023-11-26 11:45:02,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 973 places, 983 transitions, 1975 flow. Second operand has 3 states, 3 states have (on average 1029.3333333333333) internal successors, (3088), 3 states have internal predecessors, (3088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:02,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:45:02,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1028 of 1081 [2023-11-26 11:45:02,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:45:03,129 INFO L124 PetriNetUnfolderBase]: 74/1951 cut-off events. [2023-11-26 11:45:03,129 INFO L125 PetriNetUnfolderBase]: For 21/38 co-relation queries the response was YES. [2023-11-26 11:45:03,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2052 conditions, 1951 events. 74/1951 cut-off events. For 21/38 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 9258 event pairs, 39 based on Foata normal form. 0/1663 useless extension candidates. Maximal degree in co-relation 2009. Up to 89 conditions per place. [2023-11-26 11:45:03,186 INFO L140 encePairwiseOnDemand]: 1078/1081 looper letters, 19 selfloop transitions, 2 changer transitions 0/982 dead transitions. [2023-11-26 11:45:03,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 974 places, 982 transitions, 2015 flow [2023-11-26 11:45:03,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:03,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:45:03,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3106 transitions. [2023-11-26 11:45:03,205 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9577551649707061 [2023-11-26 11:45:03,205 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3106 transitions. [2023-11-26 11:45:03,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3106 transitions. [2023-11-26 11:45:03,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:45:03,208 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3106 transitions. [2023-11-26 11:45:03,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1035.3333333333333) internal successors, (3106), 3 states have internal predecessors, (3106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:03,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:03,226 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:03,226 INFO L175 Difference]: Start difference. First operand has 973 places, 983 transitions, 1975 flow. Second operand 3 states and 3106 transitions. [2023-11-26 11:45:03,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 974 places, 982 transitions, 2015 flow [2023-11-26 11:45:03,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 973 places, 982 transitions, 2014 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:45:03,253 INFO L231 Difference]: Finished difference. Result has 973 places, 982 transitions, 1976 flow [2023-11-26 11:45:03,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1972, PETRI_DIFFERENCE_MINUEND_PLACES=971, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=982, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=980, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1976, PETRI_PLACES=973, PETRI_TRANSITIONS=982} [2023-11-26 11:45:03,259 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -41 predicate places. [2023-11-26 11:45:03,260 INFO L495 AbstractCegarLoop]: Abstraction has has 973 places, 982 transitions, 1976 flow [2023-11-26 11:45:03,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1029.3333333333333) internal successors, (3088), 3 states have internal predecessors, (3088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:03,304 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:45:03,305 INFO L208 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] [2023-11-26 11:45:03,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:45:03,305 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-26 11:45:03,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:03,305 INFO L85 PathProgramCache]: Analyzing trace with hash 461443122, now seen corresponding path program 1 times [2023-11-26 11:45:03,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:03,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763762198] [2023-11-26 11:45:03,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:03,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:03,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:03,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:03,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763762198] [2023-11-26 11:45:03,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763762198] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:03,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:03,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:45:03,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461180473] [2023-11-26 11:45:03,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:03,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:45:03,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:03,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:45:03,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:03,441 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1014 out of 1081 [2023-11-26 11:45:03,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 973 places, 982 transitions, 1976 flow. Second operand has 3 states, 3 states have (on average 1015.0) internal successors, (3045), 3 states have internal predecessors, (3045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:03,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:45:03,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1014 of 1081 [2023-11-26 11:45:03,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:45:04,942 INFO L124 PetriNetUnfolderBase]: 226/3743 cut-off events. [2023-11-26 11:45:04,942 INFO L125 PetriNetUnfolderBase]: For 65/94 co-relation queries the response was YES. [2023-11-26 11:45:05,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4034 conditions, 3743 events. 226/3743 cut-off events. For 65/94 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 27051 event pairs, 132 based on Foata normal form. 0/3189 useless extension candidates. Maximal degree in co-relation 3992. Up to 274 conditions per place. [2023-11-26 11:45:05,037 INFO L140 encePairwiseOnDemand]: 1070/1081 looper letters, 26 selfloop transitions, 1 changer transitions 0/972 dead transitions. [2023-11-26 11:45:05,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 965 places, 972 transitions, 2010 flow [2023-11-26 11:45:05,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:05,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:45:05,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3079 transitions. [2023-11-26 11:45:05,047 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9494295405488745 [2023-11-26 11:45:05,047 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3079 transitions. [2023-11-26 11:45:05,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3079 transitions. [2023-11-26 11:45:05,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:45:05,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3079 transitions. [2023-11-26 11:45:05,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1026.3333333333333) internal successors, (3079), 3 states have internal predecessors, (3079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:05,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:05,067 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:05,068 INFO L175 Difference]: Start difference. First operand has 973 places, 982 transitions, 1976 flow. Second operand 3 states and 3079 transitions. [2023-11-26 11:45:05,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 965 places, 972 transitions, 2010 flow [2023-11-26 11:45:05,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 963 places, 972 transitions, 2006 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:45:05,090 INFO L231 Difference]: Finished difference. Result has 963 places, 972 transitions, 1954 flow [2023-11-26 11:45:05,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1952, PETRI_DIFFERENCE_MINUEND_PLACES=961, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=972, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=971, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1954, PETRI_PLACES=963, PETRI_TRANSITIONS=972} [2023-11-26 11:45:05,096 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -51 predicate places. [2023-11-26 11:45:05,096 INFO L495 AbstractCegarLoop]: Abstraction has has 963 places, 972 transitions, 1954 flow [2023-11-26 11:45:05,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1015.0) internal successors, (3045), 3 states have internal predecessors, (3045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:05,097 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:45:05,098 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:05,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:45:05,098 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-26 11:45:05,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:05,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1079269308, now seen corresponding path program 1 times [2023-11-26 11:45:05,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:05,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499074070] [2023-11-26 11:45:05,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:05,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:05,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:05,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:05,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499074070] [2023-11-26 11:45:05,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499074070] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:05,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:05,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:45:05,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871823955] [2023-11-26 11:45:05,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:05,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:45:05,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:05,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:45:05,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:05,223 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1036 out of 1081 [2023-11-26 11:45:05,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 963 places, 972 transitions, 1954 flow. Second operand has 3 states, 3 states have (on average 1037.3333333333333) internal successors, (3112), 3 states have internal predecessors, (3112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:05,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:45:05,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1036 of 1081 [2023-11-26 11:45:05,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:45:05,723 INFO L124 PetriNetUnfolderBase]: 25/1279 cut-off events. [2023-11-26 11:45:05,724 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-26 11:45:05,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1307 conditions, 1279 events. 25/1279 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3425 event pairs, 2 based on Foata normal form. 0/1121 useless extension candidates. Maximal degree in co-relation 1264. Up to 16 conditions per place. [2023-11-26 11:45:05,758 INFO L140 encePairwiseOnDemand]: 1078/1081 looper letters, 11 selfloop transitions, 2 changer transitions 0/971 dead transitions. [2023-11-26 11:45:05,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 964 places, 971 transitions, 1978 flow [2023-11-26 11:45:05,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:05,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:45:05,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3122 transitions. [2023-11-26 11:45:05,772 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9626888683317916 [2023-11-26 11:45:05,772 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3122 transitions. [2023-11-26 11:45:05,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3122 transitions. [2023-11-26 11:45:05,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:45:05,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3122 transitions. [2023-11-26 11:45:05,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1040.6666666666667) internal successors, (3122), 3 states have internal predecessors, (3122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:05,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:05,798 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:05,799 INFO L175 Difference]: Start difference. First operand has 963 places, 972 transitions, 1954 flow. Second operand 3 states and 3122 transitions. [2023-11-26 11:45:05,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 964 places, 971 transitions, 1978 flow [2023-11-26 11:45:05,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 963 places, 971 transitions, 1977 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:45:05,888 INFO L231 Difference]: Finished difference. Result has 963 places, 971 transitions, 1955 flow [2023-11-26 11:45:05,890 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1951, PETRI_DIFFERENCE_MINUEND_PLACES=961, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=971, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=969, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1955, PETRI_PLACES=963, PETRI_TRANSITIONS=971} [2023-11-26 11:45:05,891 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -51 predicate places. [2023-11-26 11:45:05,891 INFO L495 AbstractCegarLoop]: Abstraction has has 963 places, 971 transitions, 1955 flow [2023-11-26 11:45:05,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1037.3333333333333) internal successors, (3112), 3 states have internal predecessors, (3112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:05,892 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:45:05,893 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:05,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:45:05,893 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-26 11:45:05,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:05,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1683682130, now seen corresponding path program 1 times [2023-11-26 11:45:05,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:05,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673436976] [2023-11-26 11:45:05,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:05,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:05,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:05,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:05,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673436976] [2023-11-26 11:45:05,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673436976] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:05,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:05,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:45:05,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814808948] [2023-11-26 11:45:05,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:05,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:45:05,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:05,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:45:05,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:06,034 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1035 out of 1081 [2023-11-26 11:45:06,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 963 places, 971 transitions, 1955 flow. Second operand has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:06,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:45:06,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1035 of 1081 [2023-11-26 11:45:06,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:45:07,078 INFO L124 PetriNetUnfolderBase]: 41/1894 cut-off events. [2023-11-26 11:45:07,079 INFO L125 PetriNetUnfolderBase]: For 3/7 co-relation queries the response was YES. [2023-11-26 11:45:07,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1937 conditions, 1894 events. 41/1894 cut-off events. For 3/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 8621 event pairs, 6 based on Foata normal form. 0/1637 useless extension candidates. Maximal degree in co-relation 1894. Up to 25 conditions per place. [2023-11-26 11:45:07,141 INFO L140 encePairwiseOnDemand]: 1078/1081 looper letters, 12 selfloop transitions, 2 changer transitions 0/970 dead transitions. [2023-11-26 11:45:07,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 964 places, 970 transitions, 1981 flow [2023-11-26 11:45:07,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:07,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:45:07,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3120 transitions. [2023-11-26 11:45:07,155 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9620721554116559 [2023-11-26 11:45:07,155 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3120 transitions. [2023-11-26 11:45:07,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3120 transitions. [2023-11-26 11:45:07,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:45:07,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3120 transitions. [2023-11-26 11:45:07,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1040.0) internal successors, (3120), 3 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:07,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:07,182 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:07,182 INFO L175 Difference]: Start difference. First operand has 963 places, 971 transitions, 1955 flow. Second operand 3 states and 3120 transitions. [2023-11-26 11:45:07,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 964 places, 970 transitions, 1981 flow [2023-11-26 11:45:07,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 962 places, 970 transitions, 1977 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:45:07,212 INFO L231 Difference]: Finished difference. Result has 962 places, 970 transitions, 1953 flow [2023-11-26 11:45:07,214 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1949, PETRI_DIFFERENCE_MINUEND_PLACES=960, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=970, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=968, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1953, PETRI_PLACES=962, PETRI_TRANSITIONS=970} [2023-11-26 11:45:07,217 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -52 predicate places. [2023-11-26 11:45:07,217 INFO L495 AbstractCegarLoop]: Abstraction has has 962 places, 970 transitions, 1953 flow [2023-11-26 11:45:07,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:07,219 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:45:07,220 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:07,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:45:07,220 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-26 11:45:07,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:07,221 INFO L85 PathProgramCache]: Analyzing trace with hash -132271162, now seen corresponding path program 1 times [2023-11-26 11:45:07,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:07,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899865360] [2023-11-26 11:45:07,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:07,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:07,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:07,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:07,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:07,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899865360] [2023-11-26 11:45:07,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899865360] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:07,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:07,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:45:07,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280726628] [2023-11-26 11:45:07,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:07,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:45:07,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:07,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:45:07,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:07,357 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1035 out of 1081 [2023-11-26 11:45:07,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 962 places, 970 transitions, 1953 flow. Second operand has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:07,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:45:07,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1035 of 1081 [2023-11-26 11:45:07,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:45:08,351 INFO L124 PetriNetUnfolderBase]: 41/1893 cut-off events. [2023-11-26 11:45:08,351 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-26 11:45:08,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1936 conditions, 1893 events. 41/1893 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 8625 event pairs, 6 based on Foata normal form. 0/1637 useless extension candidates. Maximal degree in co-relation 1893. Up to 25 conditions per place. [2023-11-26 11:45:08,422 INFO L140 encePairwiseOnDemand]: 1078/1081 looper letters, 12 selfloop transitions, 2 changer transitions 0/969 dead transitions. [2023-11-26 11:45:08,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 963 places, 969 transitions, 1979 flow [2023-11-26 11:45:08,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:08,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:45:08,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3120 transitions. [2023-11-26 11:45:08,436 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9620721554116559 [2023-11-26 11:45:08,436 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3120 transitions. [2023-11-26 11:45:08,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3120 transitions. [2023-11-26 11:45:08,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:45:08,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3120 transitions. [2023-11-26 11:45:08,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1040.0) internal successors, (3120), 3 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:08,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:08,463 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:08,464 INFO L175 Difference]: Start difference. First operand has 962 places, 970 transitions, 1953 flow. Second operand 3 states and 3120 transitions. [2023-11-26 11:45:08,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 963 places, 969 transitions, 1979 flow [2023-11-26 11:45:08,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 961 places, 969 transitions, 1975 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:45:08,493 INFO L231 Difference]: Finished difference. Result has 961 places, 969 transitions, 1951 flow [2023-11-26 11:45:08,495 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1947, PETRI_DIFFERENCE_MINUEND_PLACES=959, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=969, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=967, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1951, PETRI_PLACES=961, PETRI_TRANSITIONS=969} [2023-11-26 11:45:08,496 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -53 predicate places. [2023-11-26 11:45:08,496 INFO L495 AbstractCegarLoop]: Abstraction has has 961 places, 969 transitions, 1951 flow [2023-11-26 11:45:08,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:08,498 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:45:08,498 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:08,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:45:08,499 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-26 11:45:08,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:08,499 INFO L85 PathProgramCache]: Analyzing trace with hash 426445876, now seen corresponding path program 1 times [2023-11-26 11:45:08,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:08,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267102943] [2023-11-26 11:45:08,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:08,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:08,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:08,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:08,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267102943] [2023-11-26 11:45:08,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267102943] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:08,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:08,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:45:08,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251516737] [2023-11-26 11:45:08,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:08,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:45:08,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:08,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:45:08,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:08,585 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1035 out of 1081 [2023-11-26 11:45:08,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 961 places, 969 transitions, 1951 flow. Second operand has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:08,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:45:08,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1035 of 1081 [2023-11-26 11:45:08,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:45:08,950 INFO L124 PetriNetUnfolderBase]: 22/1134 cut-off events. [2023-11-26 11:45:08,950 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2023-11-26 11:45:08,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1164 conditions, 1134 events. 22/1134 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2649 event pairs, 2 based on Foata normal form. 0/1003 useless extension candidates. Maximal degree in co-relation 1121. Up to 17 conditions per place. [2023-11-26 11:45:08,981 INFO L140 encePairwiseOnDemand]: 1078/1081 looper letters, 12 selfloop transitions, 2 changer transitions 0/968 dead transitions. [2023-11-26 11:45:08,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 962 places, 968 transitions, 1977 flow [2023-11-26 11:45:08,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:08,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:45:08,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3120 transitions. [2023-11-26 11:45:08,993 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9620721554116559 [2023-11-26 11:45:08,993 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3120 transitions. [2023-11-26 11:45:08,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3120 transitions. [2023-11-26 11:45:08,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:45:08,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3120 transitions. [2023-11-26 11:45:09,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1040.0) internal successors, (3120), 3 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:09,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:09,018 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:09,018 INFO L175 Difference]: Start difference. First operand has 961 places, 969 transitions, 1951 flow. Second operand 3 states and 3120 transitions. [2023-11-26 11:45:09,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 962 places, 968 transitions, 1977 flow [2023-11-26 11:45:09,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 960 places, 968 transitions, 1973 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:45:09,044 INFO L231 Difference]: Finished difference. Result has 960 places, 968 transitions, 1949 flow [2023-11-26 11:45:09,046 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1945, PETRI_DIFFERENCE_MINUEND_PLACES=958, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=968, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=966, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1949, PETRI_PLACES=960, PETRI_TRANSITIONS=968} [2023-11-26 11:45:09,047 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -54 predicate places. [2023-11-26 11:45:09,047 INFO L495 AbstractCegarLoop]: Abstraction has has 960 places, 968 transitions, 1949 flow [2023-11-26 11:45:09,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:09,049 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:45:09,049 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:09,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 11:45:09,049 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-26 11:45:09,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:09,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1177395702, now seen corresponding path program 1 times [2023-11-26 11:45:09,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:09,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720448281] [2023-11-26 11:45:09,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:09,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:09,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:09,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:09,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720448281] [2023-11-26 11:45:09,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720448281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:09,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:09,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:45:09,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915973474] [2023-11-26 11:45:09,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:09,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:45:09,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:09,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:45:09,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:09,135 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1035 out of 1081 [2023-11-26 11:45:09,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 960 places, 968 transitions, 1949 flow. Second operand has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:09,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:45:09,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1035 of 1081 [2023-11-26 11:45:09,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:45:09,780 INFO L124 PetriNetUnfolderBase]: 32/1465 cut-off events. [2023-11-26 11:45:09,780 INFO L125 PetriNetUnfolderBase]: For 6/30 co-relation queries the response was YES. [2023-11-26 11:45:09,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1505 conditions, 1465 events. 32/1465 cut-off events. For 6/30 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 5255 event pairs, 6 based on Foata normal form. 0/1280 useless extension candidates. Maximal degree in co-relation 1462. Up to 25 conditions per place. [2023-11-26 11:45:09,826 INFO L140 encePairwiseOnDemand]: 1078/1081 looper letters, 12 selfloop transitions, 2 changer transitions 0/967 dead transitions. [2023-11-26 11:45:09,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 961 places, 967 transitions, 1975 flow [2023-11-26 11:45:09,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:09,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:45:09,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3120 transitions. [2023-11-26 11:45:09,838 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9620721554116559 [2023-11-26 11:45:09,838 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3120 transitions. [2023-11-26 11:45:09,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3120 transitions. [2023-11-26 11:45:09,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:45:09,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3120 transitions. [2023-11-26 11:45:09,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1040.0) internal successors, (3120), 3 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:09,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:09,862 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:09,863 INFO L175 Difference]: Start difference. First operand has 960 places, 968 transitions, 1949 flow. Second operand 3 states and 3120 transitions. [2023-11-26 11:45:09,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 961 places, 967 transitions, 1975 flow [2023-11-26 11:45:09,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 959 places, 967 transitions, 1971 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:45:09,888 INFO L231 Difference]: Finished difference. Result has 959 places, 967 transitions, 1947 flow [2023-11-26 11:45:09,890 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1943, PETRI_DIFFERENCE_MINUEND_PLACES=957, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=967, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=965, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1947, PETRI_PLACES=959, PETRI_TRANSITIONS=967} [2023-11-26 11:45:09,891 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -55 predicate places. [2023-11-26 11:45:09,891 INFO L495 AbstractCegarLoop]: Abstraction has has 959 places, 967 transitions, 1947 flow [2023-11-26 11:45:09,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:09,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:45:09,893 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:09,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 11:45:09,893 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-26 11:45:09,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:09,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1430699580, now seen corresponding path program 1 times [2023-11-26 11:45:09,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:09,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335436585] [2023-11-26 11:45:09,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:09,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:09,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:09,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:09,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:09,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335436585] [2023-11-26 11:45:09,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335436585] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:09,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:09,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:45:09,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171544475] [2023-11-26 11:45:09,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:09,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:45:09,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:09,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:45:09,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:09,979 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1035 out of 1081 [2023-11-26 11:45:09,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 959 places, 967 transitions, 1947 flow. Second operand has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:09,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:45:09,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1035 of 1081 [2023-11-26 11:45:09,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:45:10,502 INFO L124 PetriNetUnfolderBase]: 32/1464 cut-off events. [2023-11-26 11:45:10,502 INFO L125 PetriNetUnfolderBase]: For 6/22 co-relation queries the response was YES. [2023-11-26 11:45:10,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1504 conditions, 1464 events. 32/1464 cut-off events. For 6/22 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 5229 event pairs, 6 based on Foata normal form. 0/1281 useless extension candidates. Maximal degree in co-relation 1461. Up to 25 conditions per place. [2023-11-26 11:45:10,528 INFO L140 encePairwiseOnDemand]: 1078/1081 looper letters, 12 selfloop transitions, 2 changer transitions 0/966 dead transitions. [2023-11-26 11:45:10,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 960 places, 966 transitions, 1973 flow [2023-11-26 11:45:10,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:10,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:45:10,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3120 transitions. [2023-11-26 11:45:10,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9620721554116559 [2023-11-26 11:45:10,538 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3120 transitions. [2023-11-26 11:45:10,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3120 transitions. [2023-11-26 11:45:10,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:45:10,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3120 transitions. [2023-11-26 11:45:10,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1040.0) internal successors, (3120), 3 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:10,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:10,553 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:10,553 INFO L175 Difference]: Start difference. First operand has 959 places, 967 transitions, 1947 flow. Second operand 3 states and 3120 transitions. [2023-11-26 11:45:10,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 960 places, 966 transitions, 1973 flow [2023-11-26 11:45:10,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 958 places, 966 transitions, 1969 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:45:10,574 INFO L231 Difference]: Finished difference. Result has 958 places, 966 transitions, 1945 flow [2023-11-26 11:45:10,576 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1941, PETRI_DIFFERENCE_MINUEND_PLACES=956, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=966, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=964, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1945, PETRI_PLACES=958, PETRI_TRANSITIONS=966} [2023-11-26 11:45:10,576 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -56 predicate places. [2023-11-26 11:45:10,577 INFO L495 AbstractCegarLoop]: Abstraction has has 958 places, 966 transitions, 1945 flow [2023-11-26 11:45:10,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:10,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:45:10,578 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:10,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 11:45:10,578 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-26 11:45:10,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:10,579 INFO L85 PathProgramCache]: Analyzing trace with hash 40966072, now seen corresponding path program 1 times [2023-11-26 11:45:10,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:10,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454737913] [2023-11-26 11:45:10,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:10,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:10,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:10,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:10,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:10,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454737913] [2023-11-26 11:45:10,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454737913] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:10,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:10,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:45:10,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860944747] [2023-11-26 11:45:10,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:10,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:45:10,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:10,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:45:10,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:10,680 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1035 out of 1081 [2023-11-26 11:45:10,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 958 places, 966 transitions, 1945 flow. Second operand has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:10,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:45:10,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1035 of 1081 [2023-11-26 11:45:10,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:45:11,037 INFO L124 PetriNetUnfolderBase]: 19/995 cut-off events. [2023-11-26 11:45:11,037 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2023-11-26 11:45:11,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1024 conditions, 995 events. 19/995 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2117 event pairs, 2 based on Foata normal form. 0/892 useless extension candidates. Maximal degree in co-relation 981. Up to 17 conditions per place. [2023-11-26 11:45:11,064 INFO L140 encePairwiseOnDemand]: 1078/1081 looper letters, 12 selfloop transitions, 2 changer transitions 0/965 dead transitions. [2023-11-26 11:45:11,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 959 places, 965 transitions, 1971 flow [2023-11-26 11:45:11,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:11,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:45:11,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3120 transitions. [2023-11-26 11:45:11,076 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9620721554116559 [2023-11-26 11:45:11,076 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3120 transitions. [2023-11-26 11:45:11,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3120 transitions. [2023-11-26 11:45:11,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:45:11,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3120 transitions. [2023-11-26 11:45:11,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1040.0) internal successors, (3120), 3 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:11,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:11,094 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:11,095 INFO L175 Difference]: Start difference. First operand has 958 places, 966 transitions, 1945 flow. Second operand 3 states and 3120 transitions. [2023-11-26 11:45:11,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 959 places, 965 transitions, 1971 flow [2023-11-26 11:45:11,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 957 places, 965 transitions, 1967 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:45:11,119 INFO L231 Difference]: Finished difference. Result has 957 places, 965 transitions, 1943 flow [2023-11-26 11:45:11,121 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1939, PETRI_DIFFERENCE_MINUEND_PLACES=955, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=965, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=963, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1943, PETRI_PLACES=957, PETRI_TRANSITIONS=965} [2023-11-26 11:45:11,123 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -57 predicate places. [2023-11-26 11:45:11,123 INFO L495 AbstractCegarLoop]: Abstraction has has 957 places, 965 transitions, 1943 flow [2023-11-26 11:45:11,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:11,124 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:45:11,124 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:11,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 11:45:11,125 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-26 11:45:11,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:11,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1528248307, now seen corresponding path program 1 times [2023-11-26 11:45:11,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:11,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98239756] [2023-11-26 11:45:11,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:11,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:11,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:11,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:11,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98239756] [2023-11-26 11:45:11,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98239756] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:11,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:11,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:45:11,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892778385] [2023-11-26 11:45:11,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:11,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:45:11,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:11,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:45:11,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:11,219 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1035 out of 1081 [2023-11-26 11:45:11,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 957 places, 965 transitions, 1943 flow. Second operand has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:11,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:45:11,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1035 of 1081 [2023-11-26 11:45:11,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:45:11,657 INFO L124 PetriNetUnfolderBase]: 29/1230 cut-off events. [2023-11-26 11:45:11,657 INFO L125 PetriNetUnfolderBase]: For 9/11 co-relation queries the response was YES. [2023-11-26 11:45:11,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1267 conditions, 1230 events. 29/1230 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 3175 event pairs, 6 based on Foata normal form. 0/1083 useless extension candidates. Maximal degree in co-relation 1224. Up to 25 conditions per place. [2023-11-26 11:45:11,716 INFO L140 encePairwiseOnDemand]: 1078/1081 looper letters, 12 selfloop transitions, 2 changer transitions 0/964 dead transitions. [2023-11-26 11:45:11,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 958 places, 964 transitions, 1969 flow [2023-11-26 11:45:11,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:11,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:45:11,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3120 transitions. [2023-11-26 11:45:11,737 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9620721554116559 [2023-11-26 11:45:11,737 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3120 transitions. [2023-11-26 11:45:11,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3120 transitions. [2023-11-26 11:45:11,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:45:11,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3120 transitions. [2023-11-26 11:45:11,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1040.0) internal successors, (3120), 3 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:11,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:11,768 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:11,768 INFO L175 Difference]: Start difference. First operand has 957 places, 965 transitions, 1943 flow. Second operand 3 states and 3120 transitions. [2023-11-26 11:45:11,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 958 places, 964 transitions, 1969 flow [2023-11-26 11:45:11,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 956 places, 964 transitions, 1965 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:45:11,800 INFO L231 Difference]: Finished difference. Result has 956 places, 964 transitions, 1941 flow [2023-11-26 11:45:11,813 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1937, PETRI_DIFFERENCE_MINUEND_PLACES=954, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=964, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=962, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1941, PETRI_PLACES=956, PETRI_TRANSITIONS=964} [2023-11-26 11:45:11,813 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -58 predicate places. [2023-11-26 11:45:11,814 INFO L495 AbstractCegarLoop]: Abstraction has has 956 places, 964 transitions, 1941 flow [2023-11-26 11:45:11,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:11,815 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:45:11,815 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:11,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 11:45:11,816 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-26 11:45:11,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:11,816 INFO L85 PathProgramCache]: Analyzing trace with hash -914159682, now seen corresponding path program 1 times [2023-11-26 11:45:11,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:11,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007676056] [2023-11-26 11:45:11,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:11,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:11,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:11,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:11,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:11,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007676056] [2023-11-26 11:45:11,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007676056] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:11,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:11,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:45:11,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238156674] [2023-11-26 11:45:11,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:11,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:45:11,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:11,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:45:11,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:11,902 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1035 out of 1081 [2023-11-26 11:45:11,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 956 places, 964 transitions, 1941 flow. Second operand has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:11,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:45:11,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1035 of 1081 [2023-11-26 11:45:11,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:45:12,331 INFO L124 PetriNetUnfolderBase]: 29/1191 cut-off events. [2023-11-26 11:45:12,331 INFO L125 PetriNetUnfolderBase]: For 9/11 co-relation queries the response was YES. [2023-11-26 11:45:12,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1228 conditions, 1191 events. 29/1191 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 3061 event pairs, 6 based on Foata normal form. 0/1051 useless extension candidates. Maximal degree in co-relation 1185. Up to 25 conditions per place. [2023-11-26 11:45:12,360 INFO L140 encePairwiseOnDemand]: 1078/1081 looper letters, 12 selfloop transitions, 2 changer transitions 0/963 dead transitions. [2023-11-26 11:45:12,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 957 places, 963 transitions, 1967 flow [2023-11-26 11:45:12,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:12,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:45:12,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3120 transitions. [2023-11-26 11:45:12,371 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9620721554116559 [2023-11-26 11:45:12,371 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3120 transitions. [2023-11-26 11:45:12,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3120 transitions. [2023-11-26 11:45:12,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:45:12,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3120 transitions. [2023-11-26 11:45:12,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1040.0) internal successors, (3120), 3 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:12,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:12,391 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:12,391 INFO L175 Difference]: Start difference. First operand has 956 places, 964 transitions, 1941 flow. Second operand 3 states and 3120 transitions. [2023-11-26 11:45:12,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 957 places, 963 transitions, 1967 flow [2023-11-26 11:45:12,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 955 places, 963 transitions, 1963 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:45:12,417 INFO L231 Difference]: Finished difference. Result has 955 places, 963 transitions, 1939 flow [2023-11-26 11:45:12,419 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1935, PETRI_DIFFERENCE_MINUEND_PLACES=953, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=963, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=961, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1939, PETRI_PLACES=955, PETRI_TRANSITIONS=963} [2023-11-26 11:45:12,421 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -59 predicate places. [2023-11-26 11:45:12,421 INFO L495 AbstractCegarLoop]: Abstraction has has 955 places, 963 transitions, 1939 flow [2023-11-26 11:45:12,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:12,422 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:45:12,422 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:12,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 11:45:12,423 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-26 11:45:12,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:12,424 INFO L85 PathProgramCache]: Analyzing trace with hash -248508112, now seen corresponding path program 1 times [2023-11-26 11:45:12,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:12,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644900586] [2023-11-26 11:45:12,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:12,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:12,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:12,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:12,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:12,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644900586] [2023-11-26 11:45:12,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644900586] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:12,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:12,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:45:12,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726580591] [2023-11-26 11:45:12,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:12,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:45:12,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:12,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:45:12,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:45:12,575 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1034 out of 1081 [2023-11-26 11:45:12,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 955 places, 963 transitions, 1939 flow. Second operand has 3 states, 3 states have (on average 1035.3333333333333) internal successors, (3106), 3 states have internal predecessors, (3106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:12,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:45:12,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1034 of 1081 [2023-11-26 11:45:12,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:45:13,424 INFO L124 PetriNetUnfolderBase]: 61/2134 cut-off events. [2023-11-26 11:45:13,424 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-26 11:45:13,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2206 conditions, 2134 events. 61/2134 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 10882 event pairs, 20 based on Foata normal form. 0/1836 useless extension candidates. Maximal degree in co-relation 2163. Up to 50 conditions per place. [2023-11-26 11:45:13,477 INFO L140 encePairwiseOnDemand]: 1078/1081 looper letters, 13 selfloop transitions, 2 changer transitions 0/962 dead transitions. [2023-11-26 11:45:13,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 956 places, 962 transitions, 1967 flow [2023-11-26 11:45:13,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:45:13,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:45:13,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3118 transitions. [2023-11-26 11:45:13,485 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9614554424915202 [2023-11-26 11:45:13,485 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3118 transitions. [2023-11-26 11:45:13,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3118 transitions. [2023-11-26 11:45:13,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:45:13,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3118 transitions. [2023-11-26 11:45:13,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1039.3333333333333) internal successors, (3118), 3 states have internal predecessors, (3118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:13,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:13,498 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:13,498 INFO L175 Difference]: Start difference. First operand has 955 places, 963 transitions, 1939 flow. Second operand 3 states and 3118 transitions. [2023-11-26 11:45:13,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 956 places, 962 transitions, 1967 flow [2023-11-26 11:45:13,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 954 places, 962 transitions, 1963 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:45:13,522 INFO L231 Difference]: Finished difference. Result has 954 places, 962 transitions, 1937 flow [2023-11-26 11:45:13,524 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1933, PETRI_DIFFERENCE_MINUEND_PLACES=952, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=962, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=960, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1937, PETRI_PLACES=954, PETRI_TRANSITIONS=962} [2023-11-26 11:45:13,525 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -60 predicate places. [2023-11-26 11:45:13,525 INFO L495 AbstractCegarLoop]: Abstraction has has 954 places, 962 transitions, 1937 flow [2023-11-26 11:45:13,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1035.3333333333333) internal successors, (3106), 3 states have internal predecessors, (3106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:13,526 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:45:13,526 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:13,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 11:45:13,527 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-26 11:45:13,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:13,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1016363657, now seen corresponding path program 1 times [2023-11-26 11:45:13,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:13,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163704165] [2023-11-26 11:45:13,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:13,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:14,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:14,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:14,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163704165] [2023-11-26 11:45:14,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163704165] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:14,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:14,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:45:14,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282598802] [2023-11-26 11:45:14,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:14,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:45:14,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:14,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:45:14,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:45:15,399 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 934 out of 1081 [2023-11-26 11:45:15,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 954 places, 962 transitions, 1937 flow. Second operand has 6 states, 6 states have (on average 935.5) internal successors, (5613), 6 states have internal predecessors, (5613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:15,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:45:15,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 934 of 1081 [2023-11-26 11:45:15,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand