./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-more-sum-array-hom.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_b8b156cc-7c9b-4747-876d-cfdf5239d7d2/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b156cc-7c9b-4747-876d-cfdf5239d7d2/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_b8b156cc-7c9b-4747-876d-cfdf5239d7d2/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b156cc-7c9b-4747-876d-cfdf5239d7d2/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-sum-array-hom.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b156cc-7c9b-4747-876d-cfdf5239d7d2/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_b8b156cc-7c9b-4747-876d-cfdf5239d7d2/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 37731ec014f4053387ac8b56c0764486866d63670c206743514c9636df9b594a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:44:00,308 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:44:00,393 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b156cc-7c9b-4747-876d-cfdf5239d7d2/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 10:44:00,399 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:44:00,399 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:44:00,427 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:44:00,428 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:44:00,429 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:44:00,429 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:44:00,430 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:44:00,431 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:44:00,431 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:44:00,432 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:44:00,433 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:44:00,433 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:44:00,434 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:44:00,434 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:44:00,435 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:44:00,435 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:44:00,435 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:44:00,436 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:44:00,437 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:44:00,437 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 10:44:00,437 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:44:00,438 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:44:00,438 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:44:00,439 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:44:00,439 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:44:00,440 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:44:00,440 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:44:00,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:44:00,441 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:44:00,441 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:44:00,442 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:44:00,442 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:44:00,442 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:44:00,443 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:44:00,443 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:44:00,444 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:44:00,444 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:44:00,444 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:44:00,450 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_b8b156cc-7c9b-4747-876d-cfdf5239d7d2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b156cc-7c9b-4747-876d-cfdf5239d7d2/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 37731ec014f4053387ac8b56c0764486866d63670c206743514c9636df9b594a [2023-11-26 10:44:00,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:44:00,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:44:00,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:44:00,804 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:44:00,805 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:44:00,807 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b156cc-7c9b-4747-876d-cfdf5239d7d2/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/popl20-more-sum-array-hom.wvr.c [2023-11-26 10:44:04,042 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:44:04,249 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:44:04,249 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b156cc-7c9b-4747-876d-cfdf5239d7d2/sv-benchmarks/c/weaver/popl20-more-sum-array-hom.wvr.c [2023-11-26 10:44:04,260 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b156cc-7c9b-4747-876d-cfdf5239d7d2/bin/uautomizer-verify-VRDe98Ueme/data/a22eec1a0/74c1b14e839a49709e5bad516e8a777b/FLAG42164bf15 [2023-11-26 10:44:04,281 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b156cc-7c9b-4747-876d-cfdf5239d7d2/bin/uautomizer-verify-VRDe98Ueme/data/a22eec1a0/74c1b14e839a49709e5bad516e8a777b [2023-11-26 10:44:04,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:44:04,287 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:44:04,289 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:44:04,289 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:44:04,294 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:44:04,294 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:44:04" (1/1) ... [2023-11-26 10:44:04,296 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@625ed50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:04, skipping insertion in model container [2023-11-26 10:44:04,296 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:44:04" (1/1) ... [2023-11-26 10:44:04,323 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:44:04,537 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:44:04,548 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:44:04,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:44:04,602 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:44:04,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:04 WrapperNode [2023-11-26 10:44:04,603 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:44:04,604 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:44:04,605 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:44:04,605 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:44:04,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:04" (1/1) ... [2023-11-26 10:44:04,642 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:04" (1/1) ... [2023-11-26 10:44:04,681 INFO L138 Inliner]: procedures = 25, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 159 [2023-11-26 10:44:04,682 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:44:04,682 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:44:04,683 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:44:04,683 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:44:04,692 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:04" (1/1) ... [2023-11-26 10:44:04,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:04" (1/1) ... [2023-11-26 10:44:04,699 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:04" (1/1) ... [2023-11-26 10:44:04,699 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:04" (1/1) ... [2023-11-26 10:44:04,714 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:04" (1/1) ... [2023-11-26 10:44:04,719 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:04" (1/1) ... [2023-11-26 10:44:04,722 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:04" (1/1) ... [2023-11-26 10:44:04,724 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:04" (1/1) ... [2023-11-26 10:44:04,728 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:44:04,742 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:44:04,742 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:44:04,743 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:44:04,743 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:04" (1/1) ... [2023-11-26 10:44:04,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:44:04,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b156cc-7c9b-4747-876d-cfdf5239d7d2/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:44:04,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b156cc-7c9b-4747-876d-cfdf5239d7d2/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:44:04,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b156cc-7c9b-4747-876d-cfdf5239d7d2/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:44:04,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:44:04,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:44:04,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 10:44:04,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 10:44:04,815 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 10:44:04,816 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 10:44:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 10:44:04,816 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 10:44:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-26 10:44:04,816 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-26 10:44:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 10:44:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 10:44:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:44:04,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:44:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:44:04,819 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 10:44:04,933 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:44:04,935 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:44:05,569 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:44:05,591 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:44:05,591 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-26 10:44:05,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:44:05 BoogieIcfgContainer [2023-11-26 10:44:05,593 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:44:05,597 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:44:05,597 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:44:05,601 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:44:05,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:44:04" (1/3) ... [2023-11-26 10:44:05,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2109beee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:44:05, skipping insertion in model container [2023-11-26 10:44:05,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:04" (2/3) ... [2023-11-26 10:44:05,603 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2109beee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:44:05, skipping insertion in model container [2023-11-26 10:44:05,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:44:05" (3/3) ... [2023-11-26 10:44:05,605 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-sum-array-hom.wvr.c [2023-11-26 10:44:05,615 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 10:44:05,624 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:44:05,625 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-11-26 10:44:05,625 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 10:44:05,808 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-26 10:44:05,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 295 places, 298 transitions, 617 flow [2023-11-26 10:44:06,019 INFO L124 PetriNetUnfolderBase]: 13/295 cut-off events. [2023-11-26 10:44:06,019 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 10:44:06,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 295 events. 13/295 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 464 event pairs, 0 based on Foata normal form. 0/252 useless extension candidates. Maximal degree in co-relation 201. Up to 2 conditions per place. [2023-11-26 10:44:06,030 INFO L82 GeneralOperation]: Start removeDead. Operand has 295 places, 298 transitions, 617 flow [2023-11-26 10:44:06,039 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 270 places, 272 transitions, 562 flow [2023-11-26 10:44:06,051 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:44:06,058 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;@63685268, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:44:06,059 INFO L358 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2023-11-26 10:44:06,066 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:44:06,066 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2023-11-26 10:44:06,066 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:44:06,067 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:06,067 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] [2023-11-26 10:44:06,068 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:44:06,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:06,074 INFO L85 PathProgramCache]: Analyzing trace with hash 417052589, now seen corresponding path program 1 times [2023-11-26 10:44:06,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:06,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270369925] [2023-11-26 10:44:06,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:06,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:06,293 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 10:44:06,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:06,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270369925] [2023-11-26 10:44:06,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270369925] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:06,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:06,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:44:06,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680558585] [2023-11-26 10:44:06,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:06,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:44:06,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:06,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:44:06,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:44:06,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 298 [2023-11-26 10:44:06,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 272 transitions, 562 flow. Second operand has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 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 10:44:06,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:06,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 298 [2023-11-26 10:44:06,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:44:06,684 INFO L124 PetriNetUnfolderBase]: 19/473 cut-off events. [2023-11-26 10:44:06,684 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-11-26 10:44:06,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 525 conditions, 473 events. 19/473 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1615 event pairs, 7 based on Foata normal form. 16/408 useless extension candidates. Maximal degree in co-relation 331. Up to 31 conditions per place. [2023-11-26 10:44:06,700 INFO L140 encePairwiseOnDemand]: 288/298 looper letters, 13 selfloop transitions, 2 changer transitions 3/264 dead transitions. [2023-11-26 10:44:06,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 264 transitions, 576 flow [2023-11-26 10:44:06,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:44:06,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:44:06,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 839 transitions. [2023-11-26 10:44:06,728 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9384787472035794 [2023-11-26 10:44:06,729 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 839 transitions. [2023-11-26 10:44:06,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 839 transitions. [2023-11-26 10:44:06,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:44:06,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 839 transitions. [2023-11-26 10:44:06,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 279.6666666666667) internal successors, (839), 3 states have internal predecessors, (839), 0 states have call successors, (0), 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 10:44:06,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 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 10:44:06,760 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 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 10:44:06,762 INFO L175 Difference]: Start difference. First operand has 270 places, 272 transitions, 562 flow. Second operand 3 states and 839 transitions. [2023-11-26 10:44:06,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 264 transitions, 576 flow [2023-11-26 10:44:06,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 264 transitions, 564 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-26 10:44:06,781 INFO L231 Difference]: Finished difference. Result has 265 places, 261 transitions, 532 flow [2023-11-26 10:44:06,784 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=532, PETRI_PLACES=265, PETRI_TRANSITIONS=261} [2023-11-26 10:44:06,790 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -5 predicate places. [2023-11-26 10:44:06,791 INFO L495 AbstractCegarLoop]: Abstraction has has 265 places, 261 transitions, 532 flow [2023-11-26 10:44:06,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 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 10:44:06,792 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:06,792 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] [2023-11-26 10:44:06,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:44:06,793 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:44:06,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:06,794 INFO L85 PathProgramCache]: Analyzing trace with hash 622631830, now seen corresponding path program 1 times [2023-11-26 10:44:06,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:06,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411622116] [2023-11-26 10:44:06,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:06,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:06,928 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 10:44:06,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:06,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411622116] [2023-11-26 10:44:06,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411622116] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:06,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:06,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:44:06,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072141711] [2023-11-26 10:44:06,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:06,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:44:06,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:06,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:44:06,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:44:06,990 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 298 [2023-11-26 10:44:06,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 261 transitions, 532 flow. Second operand has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 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 10:44:06,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:06,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 298 [2023-11-26 10:44:06,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:44:07,104 INFO L124 PetriNetUnfolderBase]: 13/379 cut-off events. [2023-11-26 10:44:07,105 INFO L125 PetriNetUnfolderBase]: For 5/8 co-relation queries the response was YES. [2023-11-26 10:44:07,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 379 events. 13/379 cut-off events. For 5/8 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1152 event pairs, 5 based on Foata normal form. 0/324 useless extension candidates. Maximal degree in co-relation 386. Up to 27 conditions per place. [2023-11-26 10:44:07,112 INFO L140 encePairwiseOnDemand]: 295/298 looper letters, 13 selfloop transitions, 2 changer transitions 0/260 dead transitions. [2023-11-26 10:44:07,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 260 transitions, 560 flow [2023-11-26 10:44:07,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:44:07,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:44:07,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 832 transitions. [2023-11-26 10:44:07,116 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.930648769574944 [2023-11-26 10:44:07,117 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 832 transitions. [2023-11-26 10:44:07,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 832 transitions. [2023-11-26 10:44:07,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:44:07,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 832 transitions. [2023-11-26 10:44:07,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 0 states have call successors, (0), 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 10:44:07,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 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 10:44:07,125 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 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 10:44:07,126 INFO L175 Difference]: Start difference. First operand has 265 places, 261 transitions, 532 flow. Second operand 3 states and 832 transitions. [2023-11-26 10:44:07,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 260 transitions, 560 flow [2023-11-26 10:44:07,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 260 transitions, 556 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:44:07,137 INFO L231 Difference]: Finished difference. Result has 261 places, 260 transitions, 530 flow [2023-11-26 10:44:07,138 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=530, PETRI_PLACES=261, PETRI_TRANSITIONS=260} [2023-11-26 10:44:07,139 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -9 predicate places. [2023-11-26 10:44:07,140 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 260 transitions, 530 flow [2023-11-26 10:44:07,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 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 10:44:07,142 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:07,145 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 10:44:07,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:44:07,146 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:44:07,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:07,149 INFO L85 PathProgramCache]: Analyzing trace with hash -930132728, now seen corresponding path program 1 times [2023-11-26 10:44:07,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:07,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232195544] [2023-11-26 10:44:07,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:07,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:07,262 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 10:44:07,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:07,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232195544] [2023-11-26 10:44:07,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232195544] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:07,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:07,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:44:07,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328185127] [2023-11-26 10:44:07,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:07,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:44:07,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:07,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:44:07,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:44:07,290 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 298 [2023-11-26 10:44:07,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 260 transitions, 530 flow. Second operand has 3 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 0 states have call successors, (0), 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 10:44:07,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:07,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 298 [2023-11-26 10:44:07,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:44:07,433 INFO L124 PetriNetUnfolderBase]: 25/500 cut-off events. [2023-11-26 10:44:07,434 INFO L125 PetriNetUnfolderBase]: For 8/14 co-relation queries the response was YES. [2023-11-26 10:44:07,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 559 conditions, 500 events. 25/500 cut-off events. For 8/14 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1916 event pairs, 12 based on Foata normal form. 0/426 useless extension candidates. Maximal degree in co-relation 520. Up to 46 conditions per place. [2023-11-26 10:44:07,439 INFO L140 encePairwiseOnDemand]: 293/298 looper letters, 14 selfloop transitions, 1 changer transitions 0/256 dead transitions. [2023-11-26 10:44:07,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 256 transitions, 552 flow [2023-11-26 10:44:07,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:44:07,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:44:07,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 829 transitions. [2023-11-26 10:44:07,443 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9272930648769575 [2023-11-26 10:44:07,443 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 829 transitions. [2023-11-26 10:44:07,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 829 transitions. [2023-11-26 10:44:07,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:44:07,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 829 transitions. [2023-11-26 10:44:07,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 276.3333333333333) internal successors, (829), 3 states have internal predecessors, (829), 0 states have call successors, (0), 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 10:44:07,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 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 10:44:07,451 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 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 10:44:07,451 INFO L175 Difference]: Start difference. First operand has 261 places, 260 transitions, 530 flow. Second operand 3 states and 829 transitions. [2023-11-26 10:44:07,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 256 transitions, 552 flow [2023-11-26 10:44:07,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 256 transitions, 548 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:44:07,458 INFO L231 Difference]: Finished difference. Result has 257 places, 256 transitions, 520 flow [2023-11-26 10:44:07,458 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=520, PETRI_PLACES=257, PETRI_TRANSITIONS=256} [2023-11-26 10:44:07,461 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -13 predicate places. [2023-11-26 10:44:07,461 INFO L495 AbstractCegarLoop]: Abstraction has has 257 places, 256 transitions, 520 flow [2023-11-26 10:44:07,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 0 states have call successors, (0), 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 10:44:07,462 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:07,463 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] [2023-11-26 10:44:07,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:44:07,463 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:44:07,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:07,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1144651624, now seen corresponding path program 1 times [2023-11-26 10:44:07,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:07,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000655773] [2023-11-26 10:44:07,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:07,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:08,316 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 10:44:08,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:08,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000655773] [2023-11-26 10:44:08,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000655773] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:08,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:08,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:44:08,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025976257] [2023-11-26 10:44:08,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:08,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:44:08,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:08,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:44:08,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:44:08,662 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 298 [2023-11-26 10:44:08,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 256 transitions, 520 flow. Second operand has 6 states, 6 states have (on average 246.5) internal successors, (1479), 6 states have internal predecessors, (1479), 0 states have call successors, (0), 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 10:44:08,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:08,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 298 [2023-11-26 10:44:08,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:44:10,829 INFO L124 PetriNetUnfolderBase]: 2114/8588 cut-off events. [2023-11-26 10:44:10,830 INFO L125 PetriNetUnfolderBase]: For 62/412 co-relation queries the response was YES. [2023-11-26 10:44:10,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11546 conditions, 8588 events. 2114/8588 cut-off events. For 62/412 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 94441 event pairs, 1640 based on Foata normal form. 0/7012 useless extension candidates. Maximal degree in co-relation 11508. Up to 2919 conditions per place. [2023-11-26 10:44:10,973 INFO L140 encePairwiseOnDemand]: 292/298 looper letters, 38 selfloop transitions, 5 changer transitions 0/255 dead transitions. [2023-11-26 10:44:10,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 255 transitions, 604 flow [2023-11-26 10:44:10,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:44:10,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:44:10,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1514 transitions. [2023-11-26 10:44:10,982 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8467561521252797 [2023-11-26 10:44:10,982 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1514 transitions. [2023-11-26 10:44:10,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1514 transitions. [2023-11-26 10:44:10,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:44:10,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1514 transitions. [2023-11-26 10:44:10,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 252.33333333333334) internal successors, (1514), 6 states have internal predecessors, (1514), 0 states have call successors, (0), 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 10:44:10,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 298.0) internal successors, (2086), 7 states have internal predecessors, (2086), 0 states have call successors, (0), 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 10:44:11,001 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 298.0) internal successors, (2086), 7 states have internal predecessors, (2086), 0 states have call successors, (0), 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 10:44:11,001 INFO L175 Difference]: Start difference. First operand has 257 places, 256 transitions, 520 flow. Second operand 6 states and 1514 transitions. [2023-11-26 10:44:11,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 255 transitions, 604 flow [2023-11-26 10:44:11,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 255 transitions, 603 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:44:11,010 INFO L231 Difference]: Finished difference. Result has 260 places, 255 transitions, 527 flow [2023-11-26 10:44:11,011 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=517, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=527, PETRI_PLACES=260, PETRI_TRANSITIONS=255} [2023-11-26 10:44:11,013 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -10 predicate places. [2023-11-26 10:44:11,013 INFO L495 AbstractCegarLoop]: Abstraction has has 260 places, 255 transitions, 527 flow [2023-11-26 10:44:11,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 246.5) internal successors, (1479), 6 states have internal predecessors, (1479), 0 states have call successors, (0), 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 10:44:11,015 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:11,016 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] [2023-11-26 10:44:11,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:44:11,016 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:44:11,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:11,017 INFO L85 PathProgramCache]: Analyzing trace with hash -438686536, now seen corresponding path program 1 times [2023-11-26 10:44:11,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:11,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357117661] [2023-11-26 10:44:11,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:11,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:11,088 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 10:44:11,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:11,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357117661] [2023-11-26 10:44:11,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357117661] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:11,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:11,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:44:11,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494260917] [2023-11-26 10:44:11,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:11,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:44:11,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:11,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:44:11,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:44:11,124 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 298 [2023-11-26 10:44:11,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 255 transitions, 527 flow. Second operand has 3 states, 3 states have (on average 274.3333333333333) internal successors, (823), 3 states have internal predecessors, (823), 0 states have call successors, (0), 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 10:44:11,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:11,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 298 [2023-11-26 10:44:11,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:44:11,311 INFO L124 PetriNetUnfolderBase]: 24/479 cut-off events. [2023-11-26 10:44:11,312 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-26 10:44:11,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 536 conditions, 479 events. 24/479 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1957 event pairs, 15 based on Foata normal form. 0/419 useless extension candidates. Maximal degree in co-relation 518. Up to 40 conditions per place. [2023-11-26 10:44:11,316 INFO L140 encePairwiseOnDemand]: 295/298 looper letters, 12 selfloop transitions, 2 changer transitions 0/254 dead transitions. [2023-11-26 10:44:11,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 254 transitions, 553 flow [2023-11-26 10:44:11,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:44:11,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:44:11,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 834 transitions. [2023-11-26 10:44:11,322 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9328859060402684 [2023-11-26 10:44:11,323 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 834 transitions. [2023-11-26 10:44:11,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 834 transitions. [2023-11-26 10:44:11,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:44:11,324 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 834 transitions. [2023-11-26 10:44:11,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 278.0) internal successors, (834), 3 states have internal predecessors, (834), 0 states have call successors, (0), 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 10:44:11,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 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 10:44:11,331 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 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 10:44:11,331 INFO L175 Difference]: Start difference. First operand has 260 places, 255 transitions, 527 flow. Second operand 3 states and 834 transitions. [2023-11-26 10:44:11,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 254 transitions, 553 flow [2023-11-26 10:44:11,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 254 transitions, 543 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 10:44:11,339 INFO L231 Difference]: Finished difference. Result has 256 places, 254 transitions, 519 flow [2023-11-26 10:44:11,340 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=519, PETRI_PLACES=256, PETRI_TRANSITIONS=254} [2023-11-26 10:44:11,343 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -14 predicate places. [2023-11-26 10:44:11,343 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 254 transitions, 519 flow [2023-11-26 10:44:11,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 274.3333333333333) internal successors, (823), 3 states have internal predecessors, (823), 0 states have call successors, (0), 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 10:44:11,344 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:11,345 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] [2023-11-26 10:44:11,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 10:44:11,345 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:44:11,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:11,346 INFO L85 PathProgramCache]: Analyzing trace with hash -538514102, now seen corresponding path program 1 times [2023-11-26 10:44:11,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:11,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079082835] [2023-11-26 10:44:11,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:11,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:11,422 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 10:44:11,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:11,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079082835] [2023-11-26 10:44:11,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079082835] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:11,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:11,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:44:11,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589916594] [2023-11-26 10:44:11,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:11,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:44:11,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:11,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:44:11,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:44:11,452 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 298 [2023-11-26 10:44:11,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 254 transitions, 519 flow. Second operand has 3 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 0 states have call successors, (0), 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 10:44:11,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:11,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 298 [2023-11-26 10:44:11,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:44:11,565 INFO L124 PetriNetUnfolderBase]: 37/562 cut-off events. [2023-11-26 10:44:11,565 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-26 10:44:11,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 630 conditions, 562 events. 37/562 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2426 event pairs, 20 based on Foata normal form. 0/480 useless extension candidates. Maximal degree in co-relation 591. Up to 56 conditions per place. [2023-11-26 10:44:11,573 INFO L140 encePairwiseOnDemand]: 293/298 looper letters, 14 selfloop transitions, 1 changer transitions 0/250 dead transitions. [2023-11-26 10:44:11,573 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 250 transitions, 541 flow [2023-11-26 10:44:11,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:44:11,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:44:11,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 829 transitions. [2023-11-26 10:44:11,577 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9272930648769575 [2023-11-26 10:44:11,577 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 829 transitions. [2023-11-26 10:44:11,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 829 transitions. [2023-11-26 10:44:11,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:44:11,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 829 transitions. [2023-11-26 10:44:11,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 276.3333333333333) internal successors, (829), 3 states have internal predecessors, (829), 0 states have call successors, (0), 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 10:44:11,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 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 10:44:11,585 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 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 10:44:11,586 INFO L175 Difference]: Start difference. First operand has 256 places, 254 transitions, 519 flow. Second operand 3 states and 829 transitions. [2023-11-26 10:44:11,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 250 transitions, 541 flow [2023-11-26 10:44:11,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 250 transitions, 537 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:44:11,594 INFO L231 Difference]: Finished difference. Result has 252 places, 250 transitions, 509 flow [2023-11-26 10:44:11,595 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=509, PETRI_PLACES=252, PETRI_TRANSITIONS=250} [2023-11-26 10:44:11,599 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -18 predicate places. [2023-11-26 10:44:11,599 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 250 transitions, 509 flow [2023-11-26 10:44:11,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 0 states have call successors, (0), 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 10:44:11,600 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:11,601 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:44:11,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 10:44:11,601 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:44:11,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:11,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1321718587, now seen corresponding path program 1 times [2023-11-26 10:44:11,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:11,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146012561] [2023-11-26 10:44:11,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:11,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:11,680 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 10:44:11,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:11,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146012561] [2023-11-26 10:44:11,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146012561] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:11,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:11,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:44:11,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123451473] [2023-11-26 10:44:11,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:11,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:44:11,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:11,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:44:11,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:44:11,703 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 298 [2023-11-26 10:44:11,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 250 transitions, 509 flow. Second operand has 3 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:44:11,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:11,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 298 [2023-11-26 10:44:11,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:44:11,786 INFO L124 PetriNetUnfolderBase]: 13/364 cut-off events. [2023-11-26 10:44:11,786 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-26 10:44:11,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 364 events. 13/364 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1035 event pairs, 2 based on Foata normal form. 1/330 useless extension candidates. Maximal degree in co-relation 363. Up to 12 conditions per place. [2023-11-26 10:44:11,790 INFO L140 encePairwiseOnDemand]: 293/298 looper letters, 10 selfloop transitions, 3 changer transitions 0/250 dead transitions. [2023-11-26 10:44:11,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 250 transitions, 537 flow [2023-11-26 10:44:11,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:44:11,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:44:11,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 843 transitions. [2023-11-26 10:44:11,794 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9429530201342282 [2023-11-26 10:44:11,794 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 843 transitions. [2023-11-26 10:44:11,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 843 transitions. [2023-11-26 10:44:11,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:44:11,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 843 transitions. [2023-11-26 10:44:11,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 281.0) internal successors, (843), 3 states have internal predecessors, (843), 0 states have call successors, (0), 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 10:44:11,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 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 10:44:11,802 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 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 10:44:11,802 INFO L175 Difference]: Start difference. First operand has 252 places, 250 transitions, 509 flow. Second operand 3 states and 843 transitions. [2023-11-26 10:44:11,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 250 transitions, 537 flow [2023-11-26 10:44:11,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 250 transitions, 536 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:44:11,810 INFO L231 Difference]: Finished difference. Result has 251 places, 248 transitions, 510 flow [2023-11-26 10:44:11,811 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=510, PETRI_PLACES=251, PETRI_TRANSITIONS=248} [2023-11-26 10:44:11,812 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -19 predicate places. [2023-11-26 10:44:11,812 INFO L495 AbstractCegarLoop]: Abstraction has has 251 places, 248 transitions, 510 flow [2023-11-26 10:44:11,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:44:11,813 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:11,814 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 10:44:11,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 10:44:11,814 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:44:11,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:11,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1138735299, now seen corresponding path program 1 times [2023-11-26 10:44:11,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:11,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375322896] [2023-11-26 10:44:11,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:11,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:11,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:11,902 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 10:44:11,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:11,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375322896] [2023-11-26 10:44:11,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375322896] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:11,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:11,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:44:11,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424586237] [2023-11-26 10:44:11,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:11,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:44:11,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:11,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:44:11,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:44:11,923 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 298 [2023-11-26 10:44:11,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 248 transitions, 510 flow. Second operand has 3 states, 3 states have (on average 274.3333333333333) internal successors, (823), 3 states have internal predecessors, (823), 0 states have call successors, (0), 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 10:44:11,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:11,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 298 [2023-11-26 10:44:11,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:44:12,138 INFO L124 PetriNetUnfolderBase]: 114/1124 cut-off events. [2023-11-26 10:44:12,139 INFO L125 PetriNetUnfolderBase]: For 28/29 co-relation queries the response was YES. [2023-11-26 10:44:12,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1323 conditions, 1124 events. 114/1124 cut-off events. For 28/29 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 7278 event pairs, 22 based on Foata normal form. 0/976 useless extension candidates. Maximal degree in co-relation 1285. Up to 161 conditions per place. [2023-11-26 10:44:12,149 INFO L140 encePairwiseOnDemand]: 292/298 looper letters, 18 selfloop transitions, 3 changer transitions 0/253 dead transitions. [2023-11-26 10:44:12,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 253 transitions, 567 flow [2023-11-26 10:44:12,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:44:12,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:44:12,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 843 transitions. [2023-11-26 10:44:12,153 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9429530201342282 [2023-11-26 10:44:12,153 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 843 transitions. [2023-11-26 10:44:12,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 843 transitions. [2023-11-26 10:44:12,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:44:12,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 843 transitions. [2023-11-26 10:44:12,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 281.0) internal successors, (843), 3 states have internal predecessors, (843), 0 states have call successors, (0), 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 10:44:12,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 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 10:44:12,161 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 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 10:44:12,161 INFO L175 Difference]: Start difference. First operand has 251 places, 248 transitions, 510 flow. Second operand 3 states and 843 transitions. [2023-11-26 10:44:12,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 253 transitions, 567 flow [2023-11-26 10:44:12,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 253 transitions, 561 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:44:12,173 INFO L231 Difference]: Finished difference. Result has 249 places, 248 transitions, 519 flow [2023-11-26 10:44:12,174 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=519, PETRI_PLACES=249, PETRI_TRANSITIONS=248} [2023-11-26 10:44:12,176 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -21 predicate places. [2023-11-26 10:44:12,176 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 248 transitions, 519 flow [2023-11-26 10:44:12,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 274.3333333333333) internal successors, (823), 3 states have internal predecessors, (823), 0 states have call successors, (0), 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 10:44:12,177 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:12,178 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] [2023-11-26 10:44:12,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 10:44:12,178 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:44:12,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:12,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1824966082, now seen corresponding path program 1 times [2023-11-26 10:44:12,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:12,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347121675] [2023-11-26 10:44:12,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:12,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:12,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:12,233 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 10:44:12,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:12,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347121675] [2023-11-26 10:44:12,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347121675] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:12,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:12,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:44:12,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897680145] [2023-11-26 10:44:12,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:12,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:44:12,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:12,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:44:12,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:44:12,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 298 [2023-11-26 10:44:12,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 248 transitions, 519 flow. Second operand has 3 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 0 states have call successors, (0), 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 10:44:12,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:12,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 298 [2023-11-26 10:44:12,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:44:12,410 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([763] thread3EXIT-->L87-7: Formula: (and (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_6| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0))) v_thread3Thread1of1ForFork0_thidvar0_4) (= v_thread3Thread1of1ForFork0_thidvar3_4 0) (= v_thread3Thread1of1ForFork0_thidvar1_4 0) (= v_thread3Thread1of1ForFork0_thidvar2_4 0)) InVars {thread3Thread1of1ForFork0_thidvar3=v_thread3Thread1of1ForFork0_thidvar3_4, thread3Thread1of1ForFork0_thidvar2=v_thread3Thread1of1ForFork0_thidvar2_4, thread3Thread1of1ForFork0_thidvar1=v_thread3Thread1of1ForFork0_thidvar1_4, thread3Thread1of1ForFork0_thidvar0=v_thread3Thread1of1ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_6|} OutVars{thread3Thread1of1ForFork0_thidvar3=v_thread3Thread1of1ForFork0_thidvar3_4, thread3Thread1of1ForFork0_thidvar2=v_thread3Thread1of1ForFork0_thidvar2_4, thread3Thread1of1ForFork0_thidvar1=v_thread3Thread1of1ForFork0_thidvar1_4, thread3Thread1of1ForFork0_thidvar0=v_thread3Thread1of1ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_6|} AuxVars[] AssignedVars[][240], [308#(= |#race~N~0| 0), 323#(= |#race~M~0| 0), 334#true, 47#L87-7true, 331#(= |#race~A~0| 0), Black: 329#true]) [2023-11-26 10:44:12,411 INFO L294 olderBase$Statistics]: this new event has 167 ancestors and is not cut-off event [2023-11-26 10:44:12,411 INFO L297 olderBase$Statistics]: existing Event has 167 ancestors and is not cut-off event [2023-11-26 10:44:12,411 INFO L297 olderBase$Statistics]: existing Event has 189 ancestors and is not cut-off event [2023-11-26 10:44:12,412 INFO L297 olderBase$Statistics]: existing Event has 189 ancestors and is not cut-off event [2023-11-26 10:44:12,413 INFO L124 PetriNetUnfolderBase]: 58/626 cut-off events. [2023-11-26 10:44:12,413 INFO L125 PetriNetUnfolderBase]: For 24/28 co-relation queries the response was YES. [2023-11-26 10:44:12,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 755 conditions, 626 events. 58/626 cut-off events. For 24/28 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2907 event pairs, 8 based on Foata normal form. 0/562 useless extension candidates. Maximal degree in co-relation 717. Up to 41 conditions per place. [2023-11-26 10:44:12,422 INFO L140 encePairwiseOnDemand]: 293/298 looper letters, 10 selfloop transitions, 3 changer transitions 0/248 dead transitions. [2023-11-26 10:44:12,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 248 transitions, 547 flow [2023-11-26 10:44:12,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:44:12,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:44:12,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 843 transitions. [2023-11-26 10:44:12,427 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9429530201342282 [2023-11-26 10:44:12,427 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 843 transitions. [2023-11-26 10:44:12,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 843 transitions. [2023-11-26 10:44:12,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:44:12,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 843 transitions. [2023-11-26 10:44:12,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 281.0) internal successors, (843), 3 states have internal predecessors, (843), 0 states have call successors, (0), 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 10:44:12,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 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 10:44:12,436 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 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 10:44:12,436 INFO L175 Difference]: Start difference. First operand has 249 places, 248 transitions, 519 flow. Second operand 3 states and 843 transitions. [2023-11-26 10:44:12,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 248 transitions, 547 flow [2023-11-26 10:44:12,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 248 transitions, 547 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:44:12,445 INFO L231 Difference]: Finished difference. Result has 249 places, 246 transitions, 521 flow [2023-11-26 10:44:12,446 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=521, PETRI_PLACES=249, PETRI_TRANSITIONS=246} [2023-11-26 10:44:12,448 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -21 predicate places. [2023-11-26 10:44:12,448 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 246 transitions, 521 flow [2023-11-26 10:44:12,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 0 states have call successors, (0), 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 10:44:12,449 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:12,449 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] [2023-11-26 10:44:12,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 10:44:12,450 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:44:12,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:12,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1719754465, now seen corresponding path program 1 times [2023-11-26 10:44:12,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:12,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522752724] [2023-11-26 10:44:12,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:12,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:12,734 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 10:44:12,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:12,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522752724] [2023-11-26 10:44:12,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522752724] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:12,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:12,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 10:44:12,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971665650] [2023-11-26 10:44:12,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:12,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:44:12,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:12,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:44:12,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:44:13,018 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 298 [2023-11-26 10:44:13,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 246 transitions, 521 flow. Second operand has 7 states, 7 states have (on average 269.85714285714283) internal successors, (1889), 7 states have internal predecessors, (1889), 0 states have call successors, (0), 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 10:44:13,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:13,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 298 [2023-11-26 10:44:13,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:44:13,417 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([763] thread3EXIT-->L87-7: Formula: (and (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_6| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0))) v_thread3Thread1of1ForFork0_thidvar0_4) (= v_thread3Thread1of1ForFork0_thidvar3_4 0) (= v_thread3Thread1of1ForFork0_thidvar1_4 0) (= v_thread3Thread1of1ForFork0_thidvar2_4 0)) InVars {thread3Thread1of1ForFork0_thidvar3=v_thread3Thread1of1ForFork0_thidvar3_4, thread3Thread1of1ForFork0_thidvar2=v_thread3Thread1of1ForFork0_thidvar2_4, thread3Thread1of1ForFork0_thidvar1=v_thread3Thread1of1ForFork0_thidvar1_4, thread3Thread1of1ForFork0_thidvar0=v_thread3Thread1of1ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_6|} OutVars{thread3Thread1of1ForFork0_thidvar3=v_thread3Thread1of1ForFork0_thidvar3_4, thread3Thread1of1ForFork0_thidvar2=v_thread3Thread1of1ForFork0_thidvar2_4, thread3Thread1of1ForFork0_thidvar1=v_thread3Thread1of1ForFork0_thidvar1_4, thread3Thread1of1ForFork0_thidvar0=v_thread3Thread1of1ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_6|} AuxVars[] AssignedVars[][257], [338#true, 308#(= |#race~N~0| 0), 323#(= |#race~M~0| 0), 334#true, 47#L87-7true, 331#(= |#race~A~0| 0), Black: 329#true]) [2023-11-26 10:44:13,418 INFO L294 olderBase$Statistics]: this new event has 226 ancestors and is cut-off event [2023-11-26 10:44:13,418 INFO L297 olderBase$Statistics]: existing Event has 182 ancestors and is cut-off event [2023-11-26 10:44:13,418 INFO L297 olderBase$Statistics]: existing Event has 182 ancestors and is cut-off event [2023-11-26 10:44:13,418 INFO L297 olderBase$Statistics]: existing Event has 204 ancestors and is cut-off event [2023-11-26 10:44:13,418 INFO L124 PetriNetUnfolderBase]: 65/1046 cut-off events. [2023-11-26 10:44:13,419 INFO L125 PetriNetUnfolderBase]: For 21/36 co-relation queries the response was YES. [2023-11-26 10:44:13,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1250 conditions, 1046 events. 65/1046 cut-off events. For 21/36 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 6099 event pairs, 16 based on Foata normal form. 4/949 useless extension candidates. Maximal degree in co-relation 1209. Up to 62 conditions per place. [2023-11-26 10:44:13,432 INFO L140 encePairwiseOnDemand]: 285/298 looper letters, 22 selfloop transitions, 14 changer transitions 0/261 dead transitions. [2023-11-26 10:44:13,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 261 transitions, 631 flow [2023-11-26 10:44:13,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 10:44:13,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-26 10:44:13,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2717 transitions. [2023-11-26 10:44:13,445 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.911744966442953 [2023-11-26 10:44:13,445 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2717 transitions. [2023-11-26 10:44:13,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2717 transitions. [2023-11-26 10:44:13,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:44:13,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2717 transitions. [2023-11-26 10:44:13,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 271.7) internal successors, (2717), 10 states have internal predecessors, (2717), 0 states have call successors, (0), 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 10:44:13,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 298.0) internal successors, (3278), 11 states have internal predecessors, (3278), 0 states have call successors, (0), 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 10:44:13,471 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 298.0) internal successors, (3278), 11 states have internal predecessors, (3278), 0 states have call successors, (0), 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 10:44:13,471 INFO L175 Difference]: Start difference. First operand has 249 places, 246 transitions, 521 flow. Second operand 10 states and 2717 transitions. [2023-11-26 10:44:13,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 261 transitions, 631 flow [2023-11-26 10:44:13,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 261 transitions, 625 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:44:13,481 INFO L231 Difference]: Finished difference. Result has 260 places, 253 transitions, 581 flow [2023-11-26 10:44:13,482 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=581, PETRI_PLACES=260, PETRI_TRANSITIONS=253} [2023-11-26 10:44:13,482 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -10 predicate places. [2023-11-26 10:44:13,483 INFO L495 AbstractCegarLoop]: Abstraction has has 260 places, 253 transitions, 581 flow [2023-11-26 10:44:13,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 269.85714285714283) internal successors, (1889), 7 states have internal predecessors, (1889), 0 states have call successors, (0), 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 10:44:13,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:13,485 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] [2023-11-26 10:44:13,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 10:44:13,485 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:44:13,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:13,486 INFO L85 PathProgramCache]: Analyzing trace with hash 512711928, now seen corresponding path program 1 times [2023-11-26 10:44:13,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:13,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798180648] [2023-11-26 10:44:13,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:13,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:13,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:14,294 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 10:44:14,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:14,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798180648] [2023-11-26 10:44:14,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798180648] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:14,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:14,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:44:14,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617221122] [2023-11-26 10:44:14,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:14,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:44:14,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:14,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:44:14,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:44:14,726 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 298 [2023-11-26 10:44:14,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 253 transitions, 581 flow. Second operand has 6 states, 6 states have (on average 270.6666666666667) internal successors, (1624), 6 states have internal predecessors, (1624), 0 states have call successors, (0), 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 10:44:14,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:14,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 298 [2023-11-26 10:44:14,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:44:14,893 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([763] thread3EXIT-->L87-7: Formula: (and (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem25#1_6| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0))) v_thread3Thread1of1ForFork0_thidvar0_4) (= v_thread3Thread1of1ForFork0_thidvar3_4 0) (= v_thread3Thread1of1ForFork0_thidvar1_4 0) (= v_thread3Thread1of1ForFork0_thidvar2_4 0)) InVars {thread3Thread1of1ForFork0_thidvar3=v_thread3Thread1of1ForFork0_thidvar3_4, thread3Thread1of1ForFork0_thidvar2=v_thread3Thread1of1ForFork0_thidvar2_4, thread3Thread1of1ForFork0_thidvar1=v_thread3Thread1of1ForFork0_thidvar1_4, thread3Thread1of1ForFork0_thidvar0=v_thread3Thread1of1ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_6|} OutVars{thread3Thread1of1ForFork0_thidvar3=v_thread3Thread1of1ForFork0_thidvar3_4, thread3Thread1of1ForFork0_thidvar2=v_thread3Thread1of1ForFork0_thidvar2_4, thread3Thread1of1ForFork0_thidvar1=v_thread3Thread1of1ForFork0_thidvar1_4, thread3Thread1of1ForFork0_thidvar0=v_thread3Thread1of1ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem25#1=|v_ULTIMATE.start_main_#t~mem25#1_6|} AuxVars[] AssignedVars[][244], [365#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 308#(= |#race~N~0| 0), 338#true, 323#(= |#race~M~0| 0), Black: 350#(and (<= ~N~0 |ULTIMATE.start_create_fresh_uint_array_~size#1|) (= |ULTIMATE.start_create_fresh_uint_array_~i~3#1| 0) (<= ~N~0 0) (<= ~N~0 |ULTIMATE.start_create_fresh_uint_array_#in~size#1|)), Black: 344#(and (<= ~N~0 0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 348#(and (<= ~N~0 |ULTIMATE.start_create_fresh_uint_array_~size#1|) (= |ULTIMATE.start_create_fresh_uint_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_uint_array_#in~size#1|)), Black: 343#(<= ~N~0 0), 47#L87-7true, Black: 329#true, 331#(= |#race~A~0| 0)]) [2023-11-26 10:44:14,893 INFO L294 olderBase$Statistics]: this new event has 226 ancestors and is cut-off event [2023-11-26 10:44:14,893 INFO L297 olderBase$Statistics]: existing Event has 204 ancestors and is cut-off event [2023-11-26 10:44:14,894 INFO L297 olderBase$Statistics]: existing Event has 182 ancestors and is cut-off event [2023-11-26 10:44:14,894 INFO L297 olderBase$Statistics]: existing Event has 182 ancestors and is cut-off event [2023-11-26 10:44:14,894 INFO L124 PetriNetUnfolderBase]: 32/695 cut-off events. [2023-11-26 10:44:14,894 INFO L125 PetriNetUnfolderBase]: For 23/55 co-relation queries the response was YES. [2023-11-26 10:44:14,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 828 conditions, 695 events. 32/695 cut-off events. For 23/55 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2985 event pairs, 1 based on Foata normal form. 20/656 useless extension candidates. Maximal degree in co-relation 780. Up to 32 conditions per place. [2023-11-26 10:44:14,901 INFO L140 encePairwiseOnDemand]: 293/298 looper letters, 13 selfloop transitions, 4 changer transitions 0/252 dead transitions. [2023-11-26 10:44:14,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 252 transitions, 613 flow [2023-11-26 10:44:14,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:44:14,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:44:14,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1632 transitions. [2023-11-26 10:44:14,908 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.912751677852349 [2023-11-26 10:44:14,908 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1632 transitions. [2023-11-26 10:44:14,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1632 transitions. [2023-11-26 10:44:14,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:44:14,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1632 transitions. [2023-11-26 10:44:14,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 272.0) internal successors, (1632), 6 states have internal predecessors, (1632), 0 states have call successors, (0), 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 10:44:14,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 298.0) internal successors, (2086), 7 states have internal predecessors, (2086), 0 states have call successors, (0), 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 10:44:14,930 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 298.0) internal successors, (2086), 7 states have internal predecessors, (2086), 0 states have call successors, (0), 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 10:44:14,931 INFO L175 Difference]: Start difference. First operand has 260 places, 253 transitions, 581 flow. Second operand 6 states and 1632 transitions. [2023-11-26 10:44:14,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 252 transitions, 613 flow [2023-11-26 10:44:14,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 252 transitions, 609 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:44:14,938 INFO L231 Difference]: Finished difference. Result has 263 places, 252 transitions, 583 flow [2023-11-26 10:44:14,939 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=583, PETRI_PLACES=263, PETRI_TRANSITIONS=252} [2023-11-26 10:44:14,940 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -7 predicate places. [2023-11-26 10:44:14,940 INFO L495 AbstractCegarLoop]: Abstraction has has 263 places, 252 transitions, 583 flow [2023-11-26 10:44:14,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 270.6666666666667) internal successors, (1624), 6 states have internal predecessors, (1624), 0 states have call successors, (0), 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 10:44:14,941 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:14,941 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] [2023-11-26 10:44:14,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 10:44:14,942 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:44:14,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:14,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1779135640, now seen corresponding path program 1 times [2023-11-26 10:44:14,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:14,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173039430] [2023-11-26 10:44:14,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:14,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:14,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:15,122 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 10:44:15,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:15,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173039430] [2023-11-26 10:44:15,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173039430] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:15,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:15,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:44:15,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065218141] [2023-11-26 10:44:15,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:15,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:44:15,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:15,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:44:15,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:44:15,171 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 298 [2023-11-26 10:44:15,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 252 transitions, 583 flow. Second operand has 5 states, 5 states have (on average 272.0) internal successors, (1360), 5 states have internal predecessors, (1360), 0 states have call successors, (0), 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 10:44:15,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:15,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 298 [2023-11-26 10:44:15,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:44:15,482 INFO L124 PetriNetUnfolderBase]: 100/1397 cut-off events. [2023-11-26 10:44:15,482 INFO L125 PetriNetUnfolderBase]: For 70/79 co-relation queries the response was YES. [2023-11-26 10:44:15,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1737 conditions, 1397 events. 100/1397 cut-off events. For 70/79 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 9484 event pairs, 35 based on Foata normal form. 8/1278 useless extension candidates. Maximal degree in co-relation 1689. Up to 111 conditions per place. [2023-11-26 10:44:15,498 INFO L140 encePairwiseOnDemand]: 292/298 looper letters, 24 selfloop transitions, 5 changer transitions 0/263 dead transitions. [2023-11-26 10:44:15,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 263 transitions, 671 flow [2023-11-26 10:44:15,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:44:15,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 10:44:15,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1380 transitions. [2023-11-26 10:44:15,503 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9261744966442953 [2023-11-26 10:44:15,503 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1380 transitions. [2023-11-26 10:44:15,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1380 transitions. [2023-11-26 10:44:15,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:44:15,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1380 transitions. [2023-11-26 10:44:15,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 276.0) internal successors, (1380), 5 states have internal predecessors, (1380), 0 states have call successors, (0), 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 10:44:15,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 298.0) internal successors, (1788), 6 states have internal predecessors, (1788), 0 states have call successors, (0), 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 10:44:15,514 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 298.0) internal successors, (1788), 6 states have internal predecessors, (1788), 0 states have call successors, (0), 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 10:44:15,514 INFO L175 Difference]: Start difference. First operand has 263 places, 252 transitions, 583 flow. Second operand 5 states and 1380 transitions. [2023-11-26 10:44:15,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 263 transitions, 671 flow [2023-11-26 10:44:15,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 263 transitions, 664 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 10:44:15,525 INFO L231 Difference]: Finished difference. Result has 265 places, 254 transitions, 601 flow [2023-11-26 10:44:15,526 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=601, PETRI_PLACES=265, PETRI_TRANSITIONS=254} [2023-11-26 10:44:15,527 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -5 predicate places. [2023-11-26 10:44:15,527 INFO L495 AbstractCegarLoop]: Abstraction has has 265 places, 254 transitions, 601 flow [2023-11-26 10:44:15,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 272.0) internal successors, (1360), 5 states have internal predecessors, (1360), 0 states have call successors, (0), 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 10:44:15,528 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:15,528 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] [2023-11-26 10:44:15,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 10:44:15,528 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:44:15,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:15,529 INFO L85 PathProgramCache]: Analyzing trace with hash 692101204, now seen corresponding path program 1 times [2023-11-26 10:44:15,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:15,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748537066] [2023-11-26 10:44:15,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:15,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:15,584 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 10:44:15,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:15,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748537066] [2023-11-26 10:44:15,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748537066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:15,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:15,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:44:15,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422080041] [2023-11-26 10:44:15,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:15,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:44:15,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:15,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:44:15,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:44:15,598 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 298 [2023-11-26 10:44:15,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 254 transitions, 601 flow. Second operand has 3 states, 3 states have (on average 277.6666666666667) internal successors, (833), 3 states have internal predecessors, (833), 0 states have call successors, (0), 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 10:44:15,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:15,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 298 [2023-11-26 10:44:15,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:44:15,877 INFO L124 PetriNetUnfolderBase]: 128/1377 cut-off events. [2023-11-26 10:44:15,877 INFO L125 PetriNetUnfolderBase]: For 110/123 co-relation queries the response was YES. [2023-11-26 10:44:15,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1754 conditions, 1377 events. 128/1377 cut-off events. For 110/123 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 9527 event pairs, 11 based on Foata normal form. 10/1285 useless extension candidates. Maximal degree in co-relation 1707. Up to 129 conditions per place. [2023-11-26 10:44:15,890 INFO L140 encePairwiseOnDemand]: 293/298 looper letters, 8 selfloop transitions, 2 changer transitions 7/254 dead transitions. [2023-11-26 10:44:15,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 254 transitions, 627 flow [2023-11-26 10:44:15,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:44:15,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:44:15,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 842 transitions. [2023-11-26 10:44:15,894 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.941834451901566 [2023-11-26 10:44:15,894 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 842 transitions. [2023-11-26 10:44:15,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 842 transitions. [2023-11-26 10:44:15,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:44:15,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 842 transitions. [2023-11-26 10:44:15,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 280.6666666666667) internal successors, (842), 3 states have internal predecessors, (842), 0 states have call successors, (0), 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 10:44:15,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 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 10:44:15,901 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 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 10:44:15,901 INFO L175 Difference]: Start difference. First operand has 265 places, 254 transitions, 601 flow. Second operand 3 states and 842 transitions. [2023-11-26 10:44:15,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 254 transitions, 627 flow [2023-11-26 10:44:15,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 254 transitions, 622 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:44:15,909 INFO L231 Difference]: Finished difference. Result has 263 places, 245 transitions, 581 flow [2023-11-26 10:44:15,909 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=581, PETRI_PLACES=263, PETRI_TRANSITIONS=245} [2023-11-26 10:44:15,911 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -7 predicate places. [2023-11-26 10:44:15,911 INFO L495 AbstractCegarLoop]: Abstraction has has 263 places, 245 transitions, 581 flow [2023-11-26 10:44:15,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 277.6666666666667) internal successors, (833), 3 states have internal predecessors, (833), 0 states have call successors, (0), 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 10:44:15,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:15,912 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] [2023-11-26 10:44:15,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 10:44:15,912 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:44:15,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:15,913 INFO L85 PathProgramCache]: Analyzing trace with hash -905959723, now seen corresponding path program 1 times [2023-11-26 10:44:15,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:15,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511126519] [2023-11-26 10:44:15,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:15,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:15,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:16,447 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 10:44:16,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:16,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511126519] [2023-11-26 10:44:16,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511126519] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:16,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:16,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:44:16,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742366664] [2023-11-26 10:44:16,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:16,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:44:16,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:16,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:44:16,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:44:16,863 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 298 [2023-11-26 10:44:16,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 245 transitions, 581 flow. Second operand has 6 states, 6 states have (on average 269.6666666666667) internal successors, (1618), 6 states have internal predecessors, (1618), 0 states have call successors, (0), 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 10:44:16,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:16,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 298 [2023-11-26 10:44:16,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:44:17,174 INFO L124 PetriNetUnfolderBase]: 111/1347 cut-off events. [2023-11-26 10:44:17,175 INFO L125 PetriNetUnfolderBase]: For 138/147 co-relation queries the response was YES. [2023-11-26 10:44:17,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1793 conditions, 1347 events. 111/1347 cut-off events. For 138/147 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 9100 event pairs, 32 based on Foata normal form. 0/1243 useless extension candidates. Maximal degree in co-relation 1745. Up to 124 conditions per place. [2023-11-26 10:44:17,191 INFO L140 encePairwiseOnDemand]: 292/298 looper letters, 24 selfloop transitions, 5 changer transitions 0/252 dead transitions. [2023-11-26 10:44:17,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 252 transitions, 661 flow [2023-11-26 10:44:17,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:44:17,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:44:17,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1636 transitions. [2023-11-26 10:44:17,198 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9149888143176734 [2023-11-26 10:44:17,199 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1636 transitions. [2023-11-26 10:44:17,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1636 transitions. [2023-11-26 10:44:17,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:44:17,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1636 transitions. [2023-11-26 10:44:17,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 272.6666666666667) internal successors, (1636), 6 states have internal predecessors, (1636), 0 states have call successors, (0), 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 10:44:17,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 298.0) internal successors, (2086), 7 states have internal predecessors, (2086), 0 states have call successors, (0), 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 10:44:17,210 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 298.0) internal successors, (2086), 7 states have internal predecessors, (2086), 0 states have call successors, (0), 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 10:44:17,211 INFO L175 Difference]: Start difference. First operand has 263 places, 245 transitions, 581 flow. Second operand 6 states and 1636 transitions. [2023-11-26 10:44:17,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 252 transitions, 661 flow [2023-11-26 10:44:17,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 252 transitions, 657 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:44:17,219 INFO L231 Difference]: Finished difference. Result has 258 places, 244 transitions, 585 flow [2023-11-26 10:44:17,220 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=585, PETRI_PLACES=258, PETRI_TRANSITIONS=244} [2023-11-26 10:44:17,221 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -12 predicate places. [2023-11-26 10:44:17,221 INFO L495 AbstractCegarLoop]: Abstraction has has 258 places, 244 transitions, 585 flow [2023-11-26 10:44:17,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 269.6666666666667) internal successors, (1618), 6 states have internal predecessors, (1618), 0 states have call successors, (0), 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 10:44:17,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:17,222 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] [2023-11-26 10:44:17,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 10:44:17,223 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:44:17,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:17,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1995712902, now seen corresponding path program 1 times [2023-11-26 10:44:17,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:17,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81768859] [2023-11-26 10:44:17,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:17,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:17,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:17,726 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 10:44:17,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:17,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81768859] [2023-11-26 10:44:17,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81768859] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:17,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:17,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:44:17,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689095654] [2023-11-26 10:44:17,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:17,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:44:17,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:17,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:44:17,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:44:18,118 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 298 [2023-11-26 10:44:18,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 244 transitions, 585 flow. Second operand has 6 states, 6 states have (on average 269.8333333333333) internal successors, (1619), 6 states have internal predecessors, (1619), 0 states have call successors, (0), 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 10:44:18,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:18,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 298 [2023-11-26 10:44:18,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:44:18,497 INFO L124 PetriNetUnfolderBase]: 188/1427 cut-off events. [2023-11-26 10:44:18,497 INFO L125 PetriNetUnfolderBase]: For 162/183 co-relation queries the response was YES. [2023-11-26 10:44:18,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1929 conditions, 1427 events. 188/1427 cut-off events. For 162/183 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 10401 event pairs, 43 based on Foata normal form. 8/1326 useless extension candidates. Maximal degree in co-relation 1881. Up to 164 conditions per place. [2023-11-26 10:44:18,512 INFO L140 encePairwiseOnDemand]: 292/298 looper letters, 22 selfloop transitions, 5 changer transitions 0/251 dead transitions. [2023-11-26 10:44:18,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 251 transitions, 661 flow [2023-11-26 10:44:18,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:44:18,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:44:18,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1636 transitions. [2023-11-26 10:44:18,519 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9149888143176734 [2023-11-26 10:44:18,519 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1636 transitions. [2023-11-26 10:44:18,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1636 transitions. [2023-11-26 10:44:18,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:44:18,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1636 transitions. [2023-11-26 10:44:18,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 272.6666666666667) internal successors, (1636), 6 states have internal predecessors, (1636), 0 states have call successors, (0), 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 10:44:18,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 298.0) internal successors, (2086), 7 states have internal predecessors, (2086), 0 states have call successors, (0), 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 10:44:18,531 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 298.0) internal successors, (2086), 7 states have internal predecessors, (2086), 0 states have call successors, (0), 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 10:44:18,531 INFO L175 Difference]: Start difference. First operand has 258 places, 244 transitions, 585 flow. Second operand 6 states and 1636 transitions. [2023-11-26 10:44:18,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 251 transitions, 661 flow [2023-11-26 10:44:18,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 251 transitions, 651 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 10:44:18,538 INFO L231 Difference]: Finished difference. Result has 257 places, 243 transitions, 583 flow [2023-11-26 10:44:18,540 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=573, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=583, PETRI_PLACES=257, PETRI_TRANSITIONS=243} [2023-11-26 10:44:18,541 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -13 predicate places. [2023-11-26 10:44:18,541 INFO L495 AbstractCegarLoop]: Abstraction has has 257 places, 243 transitions, 583 flow [2023-11-26 10:44:18,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 269.8333333333333) internal successors, (1619), 6 states have internal predecessors, (1619), 0 states have call successors, (0), 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 10:44:18,555 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:18,555 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] [2023-11-26 10:44:18,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 10:44:18,555 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:44:18,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:18,556 INFO L85 PathProgramCache]: Analyzing trace with hash -292462376, now seen corresponding path program 1 times [2023-11-26 10:44:18,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:18,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125961716] [2023-11-26 10:44:18,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:18,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:18,620 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 10:44:18,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:18,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125961716] [2023-11-26 10:44:18,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125961716] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:18,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:18,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:44:18,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452413115] [2023-11-26 10:44:18,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:18,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:44:18,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:18,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:44:18,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:44:18,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 298 [2023-11-26 10:44:18,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 243 transitions, 583 flow. Second operand has 3 states, 3 states have (on average 278.0) internal successors, (834), 3 states have internal predecessors, (834), 0 states have call successors, (0), 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 10:44:18,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:18,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 298 [2023-11-26 10:44:18,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:44:18,907 INFO L124 PetriNetUnfolderBase]: 83/1216 cut-off events. [2023-11-26 10:44:18,908 INFO L125 PetriNetUnfolderBase]: For 54/63 co-relation queries the response was YES. [2023-11-26 10:44:18,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1557 conditions, 1216 events. 83/1216 cut-off events. For 54/63 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 7429 event pairs, 19 based on Foata normal form. 0/1142 useless extension candidates. Maximal degree in co-relation 1510. Up to 86 conditions per place. [2023-11-26 10:44:18,921 INFO L140 encePairwiseOnDemand]: 295/298 looper letters, 10 selfloop transitions, 2 changer transitions 0/244 dead transitions. [2023-11-26 10:44:18,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 244 transitions, 611 flow [2023-11-26 10:44:18,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:44:18,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:44:18,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 841 transitions. [2023-11-26 10:44:18,925 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9407158836689038 [2023-11-26 10:44:18,925 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 841 transitions. [2023-11-26 10:44:18,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 841 transitions. [2023-11-26 10:44:18,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:44:18,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 841 transitions. [2023-11-26 10:44:18,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 280.3333333333333) internal successors, (841), 3 states have internal predecessors, (841), 0 states have call successors, (0), 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 10:44:18,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 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 10:44:18,931 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 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 10:44:18,932 INFO L175 Difference]: Start difference. First operand has 257 places, 243 transitions, 583 flow. Second operand 3 states and 841 transitions. [2023-11-26 10:44:18,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 244 transitions, 611 flow [2023-11-26 10:44:18,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 244 transitions, 601 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 10:44:18,940 INFO L231 Difference]: Finished difference. Result has 253 places, 242 transitions, 575 flow [2023-11-26 10:44:18,941 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=571, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=575, PETRI_PLACES=253, PETRI_TRANSITIONS=242} [2023-11-26 10:44:18,941 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -17 predicate places. [2023-11-26 10:44:18,942 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 242 transitions, 575 flow [2023-11-26 10:44:18,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 278.0) internal successors, (834), 3 states have internal predecessors, (834), 0 states have call successors, (0), 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 10:44:18,944 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:18,945 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] [2023-11-26 10:44:18,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 10:44:18,945 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:44:18,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:18,947 INFO L85 PathProgramCache]: Analyzing trace with hash 706795687, now seen corresponding path program 1 times [2023-11-26 10:44:18,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:18,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130527078] [2023-11-26 10:44:18,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:18,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:19,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 10:44:19,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:19,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130527078] [2023-11-26 10:44:19,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130527078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:19,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:19,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:44:19,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288580859] [2023-11-26 10:44:19,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:19,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:44:19,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:19,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:44:19,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:44:19,885 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 298 [2023-11-26 10:44:19,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 242 transitions, 575 flow. Second operand has 6 states, 6 states have (on average 270.1666666666667) internal successors, (1621), 6 states have internal predecessors, (1621), 0 states have call successors, (0), 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 10:44:19,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:19,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 298 [2023-11-26 10:44:19,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:44:20,162 INFO L124 PetriNetUnfolderBase]: 90/1219 cut-off events. [2023-11-26 10:44:20,162 INFO L125 PetriNetUnfolderBase]: For 86/116 co-relation queries the response was YES. [2023-11-26 10:44:20,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1667 conditions, 1219 events. 90/1219 cut-off events. For 86/116 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 7572 event pairs, 27 based on Foata normal form. 4/1161 useless extension candidates. Maximal degree in co-relation 1619. Up to 118 conditions per place. [2023-11-26 10:44:20,174 INFO L140 encePairwiseOnDemand]: 292/298 looper letters, 24 selfloop transitions, 5 changer transitions 0/249 dead transitions. [2023-11-26 10:44:20,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 249 transitions, 655 flow [2023-11-26 10:44:20,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:44:20,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:44:20,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1636 transitions. [2023-11-26 10:44:20,181 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9149888143176734 [2023-11-26 10:44:20,181 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1636 transitions. [2023-11-26 10:44:20,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1636 transitions. [2023-11-26 10:44:20,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:44:20,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1636 transitions. [2023-11-26 10:44:20,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 272.6666666666667) internal successors, (1636), 6 states have internal predecessors, (1636), 0 states have call successors, (0), 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 10:44:20,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 298.0) internal successors, (2086), 7 states have internal predecessors, (2086), 0 states have call successors, (0), 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 10:44:20,192 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 298.0) internal successors, (2086), 7 states have internal predecessors, (2086), 0 states have call successors, (0), 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 10:44:20,192 INFO L175 Difference]: Start difference. First operand has 253 places, 242 transitions, 575 flow. Second operand 6 states and 1636 transitions. [2023-11-26 10:44:20,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 249 transitions, 655 flow [2023-11-26 10:44:20,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 249 transitions, 651 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:44:20,199 INFO L231 Difference]: Finished difference. Result has 255 places, 241 transitions, 579 flow [2023-11-26 10:44:20,201 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=579, PETRI_PLACES=255, PETRI_TRANSITIONS=241} [2023-11-26 10:44:20,201 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -15 predicate places. [2023-11-26 10:44:20,201 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 241 transitions, 579 flow [2023-11-26 10:44:20,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 270.1666666666667) internal successors, (1621), 6 states have internal predecessors, (1621), 0 states have call successors, (0), 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 10:44:20,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:20,203 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 10:44:20,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-26 10:44:20,203 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:44:20,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:20,204 INFO L85 PathProgramCache]: Analyzing trace with hash -615246019, now seen corresponding path program 1 times [2023-11-26 10:44:20,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:20,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480324194] [2023-11-26 10:44:20,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:20,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:20,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:20,265 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 10:44:20,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:20,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480324194] [2023-11-26 10:44:20,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480324194] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:20,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:20,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:44:20,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319319472] [2023-11-26 10:44:20,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:20,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:44:20,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:20,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:44:20,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:44:20,291 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 298 [2023-11-26 10:44:20,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 241 transitions, 579 flow. Second operand has 3 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 0 states have call successors, (0), 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 10:44:20,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:20,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 298 [2023-11-26 10:44:20,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:44:20,608 INFO L124 PetriNetUnfolderBase]: 142/1293 cut-off events. [2023-11-26 10:44:20,608 INFO L125 PetriNetUnfolderBase]: For 116/127 co-relation queries the response was YES. [2023-11-26 10:44:20,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1714 conditions, 1293 events. 142/1293 cut-off events. For 116/127 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 8681 event pairs, 39 based on Foata normal form. 0/1229 useless extension candidates. Maximal degree in co-relation 1667. Up to 156 conditions per place. [2023-11-26 10:44:20,623 INFO L140 encePairwiseOnDemand]: 295/298 looper letters, 10 selfloop transitions, 2 changer transitions 0/242 dead transitions. [2023-11-26 10:44:20,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 242 transitions, 607 flow [2023-11-26 10:44:20,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:44:20,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:44:20,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 841 transitions. [2023-11-26 10:44:20,628 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9407158836689038 [2023-11-26 10:44:20,628 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 841 transitions. [2023-11-26 10:44:20,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 841 transitions. [2023-11-26 10:44:20,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:44:20,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 841 transitions. [2023-11-26 10:44:20,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 280.3333333333333) internal successors, (841), 3 states have internal predecessors, (841), 0 states have call successors, (0), 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 10:44:20,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 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 10:44:20,636 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 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 10:44:20,636 INFO L175 Difference]: Start difference. First operand has 255 places, 241 transitions, 579 flow. Second operand 3 states and 841 transitions. [2023-11-26 10:44:20,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 242 transitions, 607 flow [2023-11-26 10:44:20,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 242 transitions, 597 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 10:44:20,645 INFO L231 Difference]: Finished difference. Result has 251 places, 240 transitions, 571 flow [2023-11-26 10:44:20,645 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=567, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=571, PETRI_PLACES=251, PETRI_TRANSITIONS=240} [2023-11-26 10:44:20,646 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -19 predicate places. [2023-11-26 10:44:20,646 INFO L495 AbstractCegarLoop]: Abstraction has has 251 places, 240 transitions, 571 flow [2023-11-26 10:44:20,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 0 states have call successors, (0), 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 10:44:20,647 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:20,647 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] [2023-11-26 10:44:20,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-26 10:44:20,648 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:44:20,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:20,648 INFO L85 PathProgramCache]: Analyzing trace with hash 141615402, now seen corresponding path program 1 times [2023-11-26 10:44:20,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:20,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101513460] [2023-11-26 10:44:20,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:20,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:20,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 10:44:20,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:20,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101513460] [2023-11-26 10:44:20,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101513460] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:20,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:20,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:44:20,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341117061] [2023-11-26 10:44:20,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:20,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:44:20,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:20,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:44:20,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:44:20,746 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 298 [2023-11-26 10:44:20,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 240 transitions, 571 flow. Second operand has 3 states, 3 states have (on average 277.6666666666667) internal successors, (833), 3 states have internal predecessors, (833), 0 states have call successors, (0), 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 10:44:20,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:20,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 298 [2023-11-26 10:44:20,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:44:20,998 INFO L124 PetriNetUnfolderBase]: 68/1120 cut-off events. [2023-11-26 10:44:20,998 INFO L125 PetriNetUnfolderBase]: For 31/43 co-relation queries the response was YES. [2023-11-26 10:44:21,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1453 conditions, 1120 events. 68/1120 cut-off events. For 31/43 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6635 event pairs, 20 based on Foata normal form. 1/1084 useless extension candidates. Maximal degree in co-relation 1406. Up to 93 conditions per place. [2023-11-26 10:44:21,010 INFO L140 encePairwiseOnDemand]: 295/298 looper letters, 10 selfloop transitions, 2 changer transitions 0/241 dead transitions. [2023-11-26 10:44:21,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 241 transitions, 599 flow [2023-11-26 10:44:21,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:44:21,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:44:21,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 841 transitions. [2023-11-26 10:44:21,014 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9407158836689038 [2023-11-26 10:44:21,014 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 841 transitions. [2023-11-26 10:44:21,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 841 transitions. [2023-11-26 10:44:21,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:44:21,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 841 transitions. [2023-11-26 10:44:21,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 280.3333333333333) internal successors, (841), 3 states have internal predecessors, (841), 0 states have call successors, (0), 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 10:44:21,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 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 10:44:21,020 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 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 10:44:21,020 INFO L175 Difference]: Start difference. First operand has 251 places, 240 transitions, 571 flow. Second operand 3 states and 841 transitions. [2023-11-26 10:44:21,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 241 transitions, 599 flow [2023-11-26 10:44:21,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 241 transitions, 595 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:44:21,028 INFO L231 Difference]: Finished difference. Result has 250 places, 239 transitions, 569 flow [2023-11-26 10:44:21,028 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=565, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=569, PETRI_PLACES=250, PETRI_TRANSITIONS=239} [2023-11-26 10:44:21,029 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -20 predicate places. [2023-11-26 10:44:21,029 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 239 transitions, 569 flow [2023-11-26 10:44:21,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 277.6666666666667) internal successors, (833), 3 states have internal predecessors, (833), 0 states have call successors, (0), 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 10:44:21,030 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:21,030 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] [2023-11-26 10:44:21,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-26 10:44:21,030 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:44:21,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:21,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1478920428, now seen corresponding path program 1 times [2023-11-26 10:44:21,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:21,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602124977] [2023-11-26 10:44:21,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:21,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:21,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:21,569 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 10:44:21,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:21,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602124977] [2023-11-26 10:44:21,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602124977] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:21,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:21,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:44:21,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286024095] [2023-11-26 10:44:21,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:21,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:44:21,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:21,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:44:21,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:44:21,968 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 298 [2023-11-26 10:44:21,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 239 transitions, 569 flow. Second operand has 6 states, 6 states have (on average 270.8333333333333) internal successors, (1625), 6 states have internal predecessors, (1625), 0 states have call successors, (0), 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 10:44:21,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:21,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 298 [2023-11-26 10:44:21,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:44:22,186 INFO L124 PetriNetUnfolderBase]: 32/936 cut-off events. [2023-11-26 10:44:22,186 INFO L125 PetriNetUnfolderBase]: For 21/40 co-relation queries the response was YES. [2023-11-26 10:44:22,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1184 conditions, 936 events. 32/936 cut-off events. For 21/40 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4948 event pairs, 1 based on Foata normal form. 8/918 useless extension candidates. Maximal degree in co-relation 1135. Up to 42 conditions per place. [2023-11-26 10:44:22,195 INFO L140 encePairwiseOnDemand]: 293/298 looper letters, 12 selfloop transitions, 4 changer transitions 0/238 dead transitions. [2023-11-26 10:44:22,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 238 transitions, 599 flow [2023-11-26 10:44:22,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:44:22,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:44:22,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1631 transitions. [2023-11-26 10:44:22,201 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9121923937360179 [2023-11-26 10:44:22,202 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1631 transitions. [2023-11-26 10:44:22,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1631 transitions. [2023-11-26 10:44:22,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:44:22,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1631 transitions. [2023-11-26 10:44:22,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 271.8333333333333) internal successors, (1631), 6 states have internal predecessors, (1631), 0 states have call successors, (0), 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 10:44:22,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 298.0) internal successors, (2086), 7 states have internal predecessors, (2086), 0 states have call successors, (0), 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 10:44:22,213 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 298.0) internal successors, (2086), 7 states have internal predecessors, (2086), 0 states have call successors, (0), 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 10:44:22,213 INFO L175 Difference]: Start difference. First operand has 250 places, 239 transitions, 569 flow. Second operand 6 states and 1631 transitions. [2023-11-26 10:44:22,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 238 transitions, 599 flow [2023-11-26 10:44:22,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 238 transitions, 595 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:44:22,220 INFO L231 Difference]: Finished difference. Result has 252 places, 238 transitions, 571 flow [2023-11-26 10:44:22,221 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=563, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=571, PETRI_PLACES=252, PETRI_TRANSITIONS=238} [2023-11-26 10:44:22,221 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -18 predicate places. [2023-11-26 10:44:22,222 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 238 transitions, 571 flow [2023-11-26 10:44:22,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 270.8333333333333) internal successors, (1625), 6 states have internal predecessors, (1625), 0 states have call successors, (0), 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 10:44:22,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:44:22,223 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] [2023-11-26 10:44:22,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-26 10:44:22,223 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:44:22,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:22,224 INFO L85 PathProgramCache]: Analyzing trace with hash 702030919, now seen corresponding path program 1 times [2023-11-26 10:44:22,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:44:22,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287730525] [2023-11-26 10:44:22,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:22,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:44:22,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:22,819 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 10:44:22,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:44:22,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287730525] [2023-11-26 10:44:22,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287730525] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:22,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:22,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:44:22,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628334876] [2023-11-26 10:44:22,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:22,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:44:22,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:44:22,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:44:22,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:44:23,220 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 298 [2023-11-26 10:44:23,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 238 transitions, 571 flow. Second operand has 6 states, 6 states have (on average 271.0) internal successors, (1626), 6 states have internal predecessors, (1626), 0 states have call successors, (0), 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 10:44:23,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:44:23,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 298 [2023-11-26 10:44:23,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:44:23,403 INFO L124 PetriNetUnfolderBase]: 32/927 cut-off events. [2023-11-26 10:44:23,403 INFO L125 PetriNetUnfolderBase]: For 31/40 co-relation queries the response was YES. [2023-11-26 10:44:23,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1198 conditions, 927 events. 32/927 cut-off events. For 31/40 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4882 event pairs, 1 based on Foata normal form. 0/910 useless extension candidates. Maximal degree in co-relation 1149. Up to 45 conditions per place. [2023-11-26 10:44:23,411 INFO L140 encePairwiseOnDemand]: 293/298 looper letters, 0 selfloop transitions, 0 changer transitions 237/237 dead transitions. [2023-11-26 10:44:23,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 237 transitions, 601 flow [2023-11-26 10:44:23,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:44:23,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:44:23,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1631 transitions. [2023-11-26 10:44:23,417 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9121923937360179 [2023-11-26 10:44:23,418 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1631 transitions. [2023-11-26 10:44:23,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1631 transitions. [2023-11-26 10:44:23,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:44:23,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1631 transitions. [2023-11-26 10:44:23,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 271.8333333333333) internal successors, (1631), 6 states have internal predecessors, (1631), 0 states have call successors, (0), 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 10:44:23,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 298.0) internal successors, (2086), 7 states have internal predecessors, (2086), 0 states have call successors, (0), 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 10:44:23,430 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 298.0) internal successors, (2086), 7 states have internal predecessors, (2086), 0 states have call successors, (0), 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 10:44:23,430 INFO L175 Difference]: Start difference. First operand has 252 places, 238 transitions, 571 flow. Second operand 6 states and 1631 transitions. [2023-11-26 10:44:23,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 237 transitions, 601 flow [2023-11-26 10:44:23,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 237 transitions, 594 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 10:44:23,436 INFO L231 Difference]: Finished difference. Result has 252 places, 0 transitions, 0 flow [2023-11-26 10:44:23,436 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=252, PETRI_TRANSITIONS=0} [2023-11-26 10:44:23,437 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -18 predicate places. [2023-11-26 10:44:23,437 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 0 transitions, 0 flow [2023-11-26 10:44:23,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 271.0) internal successors, (1626), 6 states have internal predecessors, (1626), 0 states have call successors, (0), 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 10:44:23,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (48 of 49 remaining) [2023-11-26 10:44:23,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2023-11-26 10:44:23,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2023-11-26 10:44:23,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2023-11-26 10:44:23,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2023-11-26 10:44:23,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2023-11-26 10:44:23,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2023-11-26 10:44:23,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2023-11-26 10:44:23,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2023-11-26 10:44:23,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2023-11-26 10:44:23,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2023-11-26 10:44:23,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2023-11-26 10:44:23,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2023-11-26 10:44:23,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2023-11-26 10:44:23,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2023-11-26 10:44:23,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2023-11-26 10:44:23,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2023-11-26 10:44:23,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2023-11-26 10:44:23,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2023-11-26 10:44:23,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2023-11-26 10:44:23,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2023-11-26 10:44:23,447 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2023-11-26 10:44:23,447 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2023-11-26 10:44:23,447 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2023-11-26 10:44:23,447 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2023-11-26 10:44:23,447 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2023-11-26 10:44:23,448 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2023-11-26 10:44:23,448 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2023-11-26 10:44:23,448 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2023-11-26 10:44:23,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2023-11-26 10:44:23,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 49 remaining) [2023-11-26 10:44:23,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 49 remaining) [2023-11-26 10:44:23,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 49 remaining) [2023-11-26 10:44:23,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2023-11-26 10:44:23,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2023-11-26 10:44:23,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2023-11-26 10:44:23,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2023-11-26 10:44:23,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2023-11-26 10:44:23,451 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2023-11-26 10:44:23,451 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2023-11-26 10:44:23,451 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2023-11-26 10:44:23,451 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2023-11-26 10:44:23,451 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2023-11-26 10:44:23,452 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2023-11-26 10:44:23,452 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2023-11-26 10:44:23,452 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2023-11-26 10:44:23,452 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2023-11-26 10:44:23,453 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2023-11-26 10:44:23,453 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2023-11-26 10:44:23,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-26 10:44:23,453 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:44:23,463 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 10:44:23,463 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:44:23,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:44:23 BasicIcfg [2023-11-26 10:44:23,472 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:44:23,473 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:44:23,473 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:44:23,473 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:44:23,474 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:44:05" (3/4) ... [2023-11-26 10:44:23,476 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 10:44:23,483 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-26 10:44:23,483 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-26 10:44:23,483 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-11-26 10:44:23,493 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-11-26 10:44:23,494 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-26 10:44:23,494 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 10:44:23,495 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 10:44:23,653 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b156cc-7c9b-4747-876d-cfdf5239d7d2/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 10:44:23,654 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b156cc-7c9b-4747-876d-cfdf5239d7d2/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 10:44:23,654 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:44:23,655 INFO L158 Benchmark]: Toolchain (without parser) took 19367.53ms. Allocated memory was 140.5MB in the beginning and 780.1MB in the end (delta: 639.6MB). Free memory was 101.4MB in the beginning and 408.3MB in the end (delta: -306.9MB). Peak memory consumption was 334.7MB. Max. memory is 16.1GB. [2023-11-26 10:44:23,655 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 100.7MB. Free memory is still 47.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:44:23,655 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.12ms. Allocated memory is still 140.5MB. Free memory was 101.4MB in the beginning and 88.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 10:44:23,656 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.26ms. Allocated memory is still 140.5MB. Free memory was 88.7MB in the beginning and 86.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:44:23,656 INFO L158 Benchmark]: Boogie Preprocessor took 46.13ms. Allocated memory is still 140.5MB. Free memory was 86.6MB in the beginning and 84.1MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:44:23,657 INFO L158 Benchmark]: RCFGBuilder took 851.24ms. Allocated memory was 140.5MB in the beginning and 172.0MB in the end (delta: 31.5MB). Free memory was 84.1MB in the beginning and 141.2MB in the end (delta: -57.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-26 10:44:23,658 INFO L158 Benchmark]: TraceAbstraction took 17875.54ms. Allocated memory was 172.0MB in the beginning and 780.1MB in the end (delta: 608.2MB). Free memory was 141.2MB in the beginning and 414.6MB in the end (delta: -273.4MB). Peak memory consumption was 334.6MB. Max. memory is 16.1GB. [2023-11-26 10:44:23,658 INFO L158 Benchmark]: Witness Printer took 181.15ms. Allocated memory is still 780.1MB. Free memory was 414.6MB in the beginning and 408.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 10:44:23,662 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 100.7MB. Free memory is still 47.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 315.12ms. Allocated memory is still 140.5MB. Free memory was 101.4MB in the beginning and 88.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.26ms. Allocated memory is still 140.5MB. Free memory was 88.7MB in the beginning and 86.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.13ms. Allocated memory is still 140.5MB. Free memory was 86.6MB in the beginning and 84.1MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 851.24ms. Allocated memory was 140.5MB in the beginning and 172.0MB in the end (delta: 31.5MB). Free memory was 84.1MB in the beginning and 141.2MB in the end (delta: -57.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 17875.54ms. Allocated memory was 172.0MB in the beginning and 780.1MB in the end (delta: 608.2MB). Free memory was 141.2MB in the beginning and 414.6MB in the end (delta: -273.4MB). Peak memory consumption was 334.6MB. Max. memory is 16.1GB. * Witness Printer took 181.15ms. Allocated memory is still 780.1MB. Free memory was 414.6MB in the beginning and 408.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 101]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 391 locations, 49 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 17.6s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1593 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 808 mSDsluCounter, 452 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 329 mSDsCounter, 577 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2863 IncrementalHoareTripleChecker+Invalid, 3440 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 577 mSolverCounterUnsat, 123 mSDtfsCounter, 2863 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=601occurred in iteration=12, InterpolantAutomatonStates: 93, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 1894 NumberOfCodeBlocks, 1894 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1873 ConstructedInterpolants, 0 QuantifiedInterpolants, 2822 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 30 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-26 10:44:23,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8b156cc-7c9b-4747-876d-cfdf5239d7d2/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE