./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/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_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/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_f3bceeb0-653a-498d-bdc8-6d164f5de25d/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 23ca06a4d1d66eab783b29fc3ce31114eee62eb7d17a2452b84e2d73b8d92cfa --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:43:43,467 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:43:43,548 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 11:43:43,553 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:43:43,554 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:43:43,580 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:43:43,581 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:43:43,582 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:43:43,583 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:43:43,583 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:43:43,584 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:43:43,585 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:43:43,586 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:43:43,587 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:43:43,587 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:43:43,588 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:43:43,589 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:43:43,589 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:43:43,590 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:43:43,591 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:43:43,591 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:43:43,592 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:43:43,593 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 11:43:43,593 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:43:43,594 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:43:43,594 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:43:43,595 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:43:43,595 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:43:43,596 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:43:43,596 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:43:43,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:43:43,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:43:43,598 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:43:43,598 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:43:43,599 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:43:43,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:43:43,600 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:43:43,600 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:43:43,601 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:43:43,601 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:43:43,602 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:43:43,602 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_f3bceeb0-653a-498d-bdc8-6d164f5de25d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23ca06a4d1d66eab783b29fc3ce31114eee62eb7d17a2452b84e2d73b8d92cfa [2023-11-26 11:43:43,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:43:43,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:43:43,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:43:43,992 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:43:43,993 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:43:43,995 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c [2023-11-26 11:43:47,061 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:43:47,273 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:43:47,274 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c [2023-11-26 11:43:47,287 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/data/f58ac1f55/26bc78f1680242e9a25a64be29c8bf5a/FLAG49f04c81e [2023-11-26 11:43:47,339 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/data/f58ac1f55/26bc78f1680242e9a25a64be29c8bf5a [2023-11-26 11:43:47,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:43:47,348 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:43:47,351 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:43:47,351 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:43:47,357 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:43:47,358 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,361 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@494f5c77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47, skipping insertion in model container [2023-11-26 11:43:47,361 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,410 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:43:47,656 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:43:47,667 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:43:47,707 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:43:47,725 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:43:47,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47 WrapperNode [2023-11-26 11:43:47,726 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:43:47,727 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:43:47,728 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:43:47,728 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:43:47,736 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,764 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,807 INFO L138 Inliner]: procedures = 25, calls = 38, calls flagged for inlining = 16, calls inlined = 20, statements flattened = 343 [2023-11-26 11:43:47,808 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:43:47,808 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:43:47,809 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:43:47,809 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:43:47,820 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,820 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,828 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,829 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,848 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,854 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,857 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,860 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,866 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:43:47,867 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:43:47,867 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:43:47,867 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:43:47,868 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:43:47,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:47,906 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:43:47,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:43:47,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:43:47,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:43:47,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 11:43:47,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 11:43:47,947 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 11:43:47,947 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 11:43:47,947 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 11:43:47,947 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 11:43:47,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 11:43:47,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:43:47,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:43:47,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:43:47,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:43:47,950 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 11:43:48,077 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:43:48,080 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:43:48,781 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:43:48,801 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:43:48,801 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-26 11:43:48,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:43:48 BoogieIcfgContainer [2023-11-26 11:43:48,804 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:43:48,806 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:43:48,806 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:43:48,810 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:43:48,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:43:47" (1/3) ... [2023-11-26 11:43:48,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ae74dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:43:48, skipping insertion in model container [2023-11-26 11:43:48,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47" (2/3) ... [2023-11-26 11:43:48,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51ae74dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:43:48, skipping insertion in model container [2023-11-26 11:43:48,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:43:48" (3/3) ... [2023-11-26 11:43:48,813 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-symm.wvr.c [2023-11-26 11:43:48,823 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:43:48,832 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:43:48,833 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2023-11-26 11:43:48,833 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:43:49,064 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-26 11:43:49,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 430 places, 449 transitions, 912 flow [2023-11-26 11:43:49,416 INFO L124 PetriNetUnfolderBase]: 26/447 cut-off events. [2023-11-26 11:43:49,416 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-26 11:43:49,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 456 conditions, 447 events. 26/447 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 706 event pairs, 0 based on Foata normal form. 0/385 useless extension candidates. Maximal degree in co-relation 255. Up to 2 conditions per place. [2023-11-26 11:43:49,431 INFO L82 GeneralOperation]: Start removeDead. Operand has 430 places, 449 transitions, 912 flow [2023-11-26 11:43:49,443 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 406 places, 423 transitions, 858 flow [2023-11-26 11:43:49,454 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:43:49,462 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;@5e5c1f61, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:43:49,462 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2023-11-26 11:43:49,472 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:43:49,472 INFO L124 PetriNetUnfolderBase]: 3/59 cut-off events. [2023-11-26 11:43:49,473 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:43:49,473 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:49,474 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] [2023-11-26 11:43:49,474 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:43:49,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:49,480 INFO L85 PathProgramCache]: Analyzing trace with hash -238933603, now seen corresponding path program 1 times [2023-11-26 11:43:49,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:49,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620057598] [2023-11-26 11:43:49,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:49,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:50,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:43:50,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:50,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620057598] [2023-11-26 11:43:50,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620057598] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:50,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:50,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:43:50,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119208711] [2023-11-26 11:43:50,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:50,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:43:50,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:50,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:43:50,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:43:51,156 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 449 [2023-11-26 11:43:51,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 423 transitions, 858 flow. Second operand has 6 states, 6 states have (on average 376.5) internal successors, (2259), 6 states have internal predecessors, (2259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:51,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:51,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 449 [2023-11-26 11:43:51,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:43:53,144 INFO L124 PetriNetUnfolderBase]: 876/6787 cut-off events. [2023-11-26 11:43:53,144 INFO L125 PetriNetUnfolderBase]: For 73/82 co-relation queries the response was YES. [2023-11-26 11:43:53,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8108 conditions, 6787 events. 876/6787 cut-off events. For 73/82 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 70045 event pairs, 688 based on Foata normal form. 371/6142 useless extension candidates. Maximal degree in co-relation 7511. Up to 1268 conditions per place. [2023-11-26 11:43:53,230 INFO L140 encePairwiseOnDemand]: 421/449 looper letters, 44 selfloop transitions, 10 changer transitions 6/405 dead transitions. [2023-11-26 11:43:53,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 405 transitions, 930 flow [2023-11-26 11:43:53,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:43:53,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:43:53,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2322 transitions. [2023-11-26 11:43:53,255 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8619153674832962 [2023-11-26 11:43:53,256 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2322 transitions. [2023-11-26 11:43:53,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2322 transitions. [2023-11-26 11:43:53,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:43:53,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2322 transitions. [2023-11-26 11:43:53,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 387.0) internal successors, (2322), 6 states have internal predecessors, (2322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:53,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 449.0) internal successors, (3143), 7 states have internal predecessors, (3143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:53,293 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 449.0) internal successors, (3143), 7 states have internal predecessors, (3143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:53,295 INFO L175 Difference]: Start difference. First operand has 406 places, 423 transitions, 858 flow. Second operand 6 states and 2322 transitions. [2023-11-26 11:43:53,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 405 transitions, 930 flow [2023-11-26 11:43:53,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 405 transitions, 922 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:43:53,317 INFO L231 Difference]: Finished difference. Result has 405 places, 399 transitions, 822 flow [2023-11-26 11:43:53,320 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=814, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=822, PETRI_PLACES=405, PETRI_TRANSITIONS=399} [2023-11-26 11:43:53,325 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, -1 predicate places. [2023-11-26 11:43:53,326 INFO L495 AbstractCegarLoop]: Abstraction has has 405 places, 399 transitions, 822 flow [2023-11-26 11:43:53,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 376.5) internal successors, (2259), 6 states have internal predecessors, (2259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:53,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:53,330 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] [2023-11-26 11:43:53,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:43:53,331 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:43:53,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:53,332 INFO L85 PathProgramCache]: Analyzing trace with hash 2110557148, now seen corresponding path program 1 times [2023-11-26 11:43:53,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:53,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013111352] [2023-11-26 11:43:53,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:53,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:53,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:43:53,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:53,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013111352] [2023-11-26 11:43:53,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013111352] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:53,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:53,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:43:53,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562356573] [2023-11-26 11:43:53,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:53,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:43:53,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:53,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:43:53,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:43:53,413 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 449 [2023-11-26 11:43:53,416 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 399 transitions, 822 flow. Second operand has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:53,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:53,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 449 [2023-11-26 11:43:53,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:43:53,576 INFO L124 PetriNetUnfolderBase]: 13/520 cut-off events. [2023-11-26 11:43:53,576 INFO L125 PetriNetUnfolderBase]: For 3/4 co-relation queries the response was YES. [2023-11-26 11:43:53,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 553 conditions, 520 events. 13/520 cut-off events. For 3/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1414 event pairs, 3 based on Foata normal form. 0/455 useless extension candidates. Maximal degree in co-relation 520. Up to 16 conditions per place. [2023-11-26 11:43:53,584 INFO L140 encePairwiseOnDemand]: 446/449 looper letters, 9 selfloop transitions, 2 changer transitions 0/398 dead transitions. [2023-11-26 11:43:53,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 398 transitions, 842 flow [2023-11-26 11:43:53,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:43:53,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:43:53,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1266 transitions. [2023-11-26 11:43:53,589 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9398663697104677 [2023-11-26 11:43:53,590 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1266 transitions. [2023-11-26 11:43:53,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1266 transitions. [2023-11-26 11:43:53,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:43:53,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1266 transitions. [2023-11-26 11:43:53,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 422.0) internal successors, (1266), 3 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:53,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:53,602 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:53,603 INFO L175 Difference]: Start difference. First operand has 405 places, 399 transitions, 822 flow. Second operand 3 states and 1266 transitions. [2023-11-26 11:43:53,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 398 transitions, 842 flow [2023-11-26 11:43:53,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 398 transitions, 822 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:43:53,614 INFO L231 Difference]: Finished difference. Result has 395 places, 398 transitions, 804 flow [2023-11-26 11:43:53,615 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=800, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=804, PETRI_PLACES=395, PETRI_TRANSITIONS=398} [2023-11-26 11:43:53,616 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, -11 predicate places. [2023-11-26 11:43:53,617 INFO L495 AbstractCegarLoop]: Abstraction has has 395 places, 398 transitions, 804 flow [2023-11-26 11:43:53,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:53,618 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:53,619 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] [2023-11-26 11:43:53,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:43:53,623 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:43:53,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:53,625 INFO L85 PathProgramCache]: Analyzing trace with hash 524953959, now seen corresponding path program 1 times [2023-11-26 11:43:53,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:53,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816322330] [2023-11-26 11:43:53,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:53,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:43:53,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:53,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816322330] [2023-11-26 11:43:53,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816322330] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:53,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:53,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:43:53,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356967831] [2023-11-26 11:43:53,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:53,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:43:53,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:53,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:43:53,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:43:53,718 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 449 [2023-11-26 11:43:53,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 398 transitions, 804 flow. Second operand has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:53,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:53,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 449 [2023-11-26 11:43:53,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:43:53,835 INFO L124 PetriNetUnfolderBase]: 16/590 cut-off events. [2023-11-26 11:43:53,835 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2023-11-26 11:43:53,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 590 events. 16/590 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1591 event pairs, 3 based on Foata normal form. 0/513 useless extension candidates. Maximal degree in co-relation 548. Up to 18 conditions per place. [2023-11-26 11:43:53,844 INFO L140 encePairwiseOnDemand]: 446/449 looper letters, 9 selfloop transitions, 2 changer transitions 0/397 dead transitions. [2023-11-26 11:43:53,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 397 transitions, 824 flow [2023-11-26 11:43:53,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:43:53,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:43:53,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1266 transitions. [2023-11-26 11:43:53,849 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9398663697104677 [2023-11-26 11:43:53,849 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1266 transitions. [2023-11-26 11:43:53,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1266 transitions. [2023-11-26 11:43:53,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:43:53,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1266 transitions. [2023-11-26 11:43:53,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 422.0) internal successors, (1266), 3 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:53,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:53,862 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:53,862 INFO L175 Difference]: Start difference. First operand has 395 places, 398 transitions, 804 flow. Second operand 3 states and 1266 transitions. [2023-11-26 11:43:53,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 397 transitions, 824 flow [2023-11-26 11:43:53,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 397 transitions, 820 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:43:53,873 INFO L231 Difference]: Finished difference. Result has 394 places, 397 transitions, 802 flow [2023-11-26 11:43:53,874 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=798, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=802, PETRI_PLACES=394, PETRI_TRANSITIONS=397} [2023-11-26 11:43:53,875 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, -12 predicate places. [2023-11-26 11:43:53,876 INFO L495 AbstractCegarLoop]: Abstraction has has 394 places, 397 transitions, 802 flow [2023-11-26 11:43:53,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:53,877 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:53,878 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] [2023-11-26 11:43:53,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:43:53,878 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:43:53,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:53,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1321957302, now seen corresponding path program 1 times [2023-11-26 11:43:53,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:53,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083515672] [2023-11-26 11:43:53,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:53,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:53,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:43:53,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:53,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083515672] [2023-11-26 11:43:53,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083515672] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:53,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:53,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:43:53,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315050009] [2023-11-26 11:43:53,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:53,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:43:53,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:53,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:43:53,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:43:53,985 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 449 [2023-11-26 11:43:53,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 397 transitions, 802 flow. Second operand has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:53,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:53,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 449 [2023-11-26 11:43:53,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:43:54,099 INFO L124 PetriNetUnfolderBase]: 15/606 cut-off events. [2023-11-26 11:43:54,099 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 11:43:54,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 631 conditions, 606 events. 15/606 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1913 event pairs, 3 based on Foata normal form. 0/527 useless extension candidates. Maximal degree in co-relation 515. Up to 16 conditions per place. [2023-11-26 11:43:54,108 INFO L140 encePairwiseOnDemand]: 446/449 looper letters, 9 selfloop transitions, 2 changer transitions 0/396 dead transitions. [2023-11-26 11:43:54,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 396 transitions, 822 flow [2023-11-26 11:43:54,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:43:54,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:43:54,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1266 transitions. [2023-11-26 11:43:54,113 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9398663697104677 [2023-11-26 11:43:54,113 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1266 transitions. [2023-11-26 11:43:54,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1266 transitions. [2023-11-26 11:43:54,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:43:54,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1266 transitions. [2023-11-26 11:43:54,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 422.0) internal successors, (1266), 3 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:54,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:54,126 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:54,126 INFO L175 Difference]: Start difference. First operand has 394 places, 397 transitions, 802 flow. Second operand 3 states and 1266 transitions. [2023-11-26 11:43:54,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 396 transitions, 822 flow [2023-11-26 11:43:54,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 396 transitions, 818 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:43:54,137 INFO L231 Difference]: Finished difference. Result has 393 places, 396 transitions, 800 flow [2023-11-26 11:43:54,138 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=800, PETRI_PLACES=393, PETRI_TRANSITIONS=396} [2023-11-26 11:43:54,139 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, -13 predicate places. [2023-11-26 11:43:54,139 INFO L495 AbstractCegarLoop]: Abstraction has has 393 places, 396 transitions, 800 flow [2023-11-26 11:43:54,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:54,141 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:54,141 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] [2023-11-26 11:43:54,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:43:54,142 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:43:54,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:54,142 INFO L85 PathProgramCache]: Analyzing trace with hash -821058799, now seen corresponding path program 1 times [2023-11-26 11:43:54,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:54,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658164036] [2023-11-26 11:43:54,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:54,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:43:54,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:54,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658164036] [2023-11-26 11:43:54,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658164036] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:54,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:54,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:43:54,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322786111] [2023-11-26 11:43:54,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:54,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:43:54,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:54,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:43:54,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:43:54,241 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 449 [2023-11-26 11:43:54,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 396 transitions, 800 flow. Second operand has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:54,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:54,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 449 [2023-11-26 11:43:54,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:43:54,366 INFO L124 PetriNetUnfolderBase]: 15/607 cut-off events. [2023-11-26 11:43:54,367 INFO L125 PetriNetUnfolderBase]: For 3/4 co-relation queries the response was YES. [2023-11-26 11:43:54,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 632 conditions, 607 events. 15/607 cut-off events. For 3/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1754 event pairs, 3 based on Foata normal form. 0/528 useless extension candidates. Maximal degree in co-relation 509. Up to 16 conditions per place. [2023-11-26 11:43:54,374 INFO L140 encePairwiseOnDemand]: 446/449 looper letters, 9 selfloop transitions, 2 changer transitions 0/395 dead transitions. [2023-11-26 11:43:54,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 395 transitions, 820 flow [2023-11-26 11:43:54,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:43:54,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:43:54,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1266 transitions. [2023-11-26 11:43:54,385 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9398663697104677 [2023-11-26 11:43:54,385 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1266 transitions. [2023-11-26 11:43:54,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1266 transitions. [2023-11-26 11:43:54,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:43:54,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1266 transitions. [2023-11-26 11:43:54,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 422.0) internal successors, (1266), 3 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:54,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:54,400 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:54,400 INFO L175 Difference]: Start difference. First operand has 393 places, 396 transitions, 800 flow. Second operand 3 states and 1266 transitions. [2023-11-26 11:43:54,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 395 transitions, 820 flow [2023-11-26 11:43:54,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 395 transitions, 816 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:43:54,414 INFO L231 Difference]: Finished difference. Result has 392 places, 395 transitions, 798 flow [2023-11-26 11:43:54,415 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=798, PETRI_PLACES=392, PETRI_TRANSITIONS=395} [2023-11-26 11:43:54,418 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, -14 predicate places. [2023-11-26 11:43:54,418 INFO L495 AbstractCegarLoop]: Abstraction has has 392 places, 395 transitions, 798 flow [2023-11-26 11:43:54,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:54,420 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:54,420 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] [2023-11-26 11:43:54,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:43:54,421 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:43:54,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:54,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1915804808, now seen corresponding path program 1 times [2023-11-26 11:43:54,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:54,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703548558] [2023-11-26 11:43:54,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:54,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:43:54,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:54,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703548558] [2023-11-26 11:43:54,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703548558] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:54,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:54,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:43:54,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018902137] [2023-11-26 11:43:54,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:54,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:43:54,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:54,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:43:54,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:43:54,528 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 449 [2023-11-26 11:43:54,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 395 transitions, 798 flow. Second operand has 3 states, 3 states have (on average 421.3333333333333) internal successors, (1264), 3 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:54,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:54,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 449 [2023-11-26 11:43:54,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:43:54,725 INFO L124 PetriNetUnfolderBase]: 26/887 cut-off events. [2023-11-26 11:43:54,726 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 11:43:54,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 921 conditions, 887 events. 26/887 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3831 event pairs, 5 based on Foata normal form. 0/770 useless extension candidates. Maximal degree in co-relation 791. Up to 22 conditions per place. [2023-11-26 11:43:54,743 INFO L140 encePairwiseOnDemand]: 445/449 looper letters, 10 selfloop transitions, 2 changer transitions 0/396 dead transitions. [2023-11-26 11:43:54,744 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 396 transitions, 825 flow [2023-11-26 11:43:54,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:43:54,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:43:54,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1274 transitions. [2023-11-26 11:43:54,749 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9458054936896808 [2023-11-26 11:43:54,750 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1274 transitions. [2023-11-26 11:43:54,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1274 transitions. [2023-11-26 11:43:54,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:43:54,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1274 transitions. [2023-11-26 11:43:54,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 424.6666666666667) internal successors, (1274), 3 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:54,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:54,761 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:54,762 INFO L175 Difference]: Start difference. First operand has 392 places, 395 transitions, 798 flow. Second operand 3 states and 1274 transitions. [2023-11-26 11:43:54,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 396 transitions, 825 flow [2023-11-26 11:43:54,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 396 transitions, 821 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:43:54,775 INFO L231 Difference]: Finished difference. Result has 391 places, 395 transitions, 804 flow [2023-11-26 11:43:54,776 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=804, PETRI_PLACES=391, PETRI_TRANSITIONS=395} [2023-11-26 11:43:54,779 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, -15 predicate places. [2023-11-26 11:43:54,779 INFO L495 AbstractCegarLoop]: Abstraction has has 391 places, 395 transitions, 804 flow [2023-11-26 11:43:54,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 421.3333333333333) internal successors, (1264), 3 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:54,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:54,783 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:43:54,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:43:54,783 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:43:54,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:54,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1470458961, now seen corresponding path program 1 times [2023-11-26 11:43:54,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:54,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394727062] [2023-11-26 11:43:54,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:54,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:43:54,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:54,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394727062] [2023-11-26 11:43:54,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394727062] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:54,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:54,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:43:54,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201722800] [2023-11-26 11:43:54,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:54,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:43:54,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:54,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:43:54,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:43:54,892 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 449 [2023-11-26 11:43:54,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 395 transitions, 804 flow. Second operand has 3 states, 3 states have (on average 421.6666666666667) internal successors, (1265), 3 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:54,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:54,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 449 [2023-11-26 11:43:54,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:43:55,083 INFO L124 PetriNetUnfolderBase]: 27/865 cut-off events. [2023-11-26 11:43:55,084 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 11:43:55,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 904 conditions, 865 events. 27/865 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4049 event pairs, 3 based on Foata normal form. 0/756 useless extension candidates. Maximal degree in co-relation 674. Up to 22 conditions per place. [2023-11-26 11:43:55,095 INFO L140 encePairwiseOnDemand]: 445/449 looper letters, 10 selfloop transitions, 2 changer transitions 0/396 dead transitions. [2023-11-26 11:43:55,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 396 transitions, 831 flow [2023-11-26 11:43:55,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:43:55,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:43:55,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1274 transitions. [2023-11-26 11:43:55,101 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9458054936896808 [2023-11-26 11:43:55,101 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1274 transitions. [2023-11-26 11:43:55,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1274 transitions. [2023-11-26 11:43:55,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:43:55,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1274 transitions. [2023-11-26 11:43:55,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 424.6666666666667) internal successors, (1274), 3 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:55,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:55,113 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:55,114 INFO L175 Difference]: Start difference. First operand has 391 places, 395 transitions, 804 flow. Second operand 3 states and 1274 transitions. [2023-11-26 11:43:55,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 396 transitions, 831 flow [2023-11-26 11:43:55,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 396 transitions, 831 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:43:55,124 INFO L231 Difference]: Finished difference. Result has 392 places, 395 transitions, 814 flow [2023-11-26 11:43:55,125 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=800, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=814, PETRI_PLACES=392, PETRI_TRANSITIONS=395} [2023-11-26 11:43:55,126 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, -14 predicate places. [2023-11-26 11:43:55,126 INFO L495 AbstractCegarLoop]: Abstraction has has 392 places, 395 transitions, 814 flow [2023-11-26 11:43:55,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 421.6666666666667) internal successors, (1265), 3 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:55,127 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:55,128 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 11:43:55,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:43:55,128 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:43:55,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:55,129 INFO L85 PathProgramCache]: Analyzing trace with hash 203590022, now seen corresponding path program 1 times [2023-11-26 11:43:55,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:55,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684278349] [2023-11-26 11:43:55,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:55,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,294 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 11:43:55,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:55,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684278349] [2023-11-26 11:43:55,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684278349] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:55,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:55,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:43:55,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308851326] [2023-11-26 11:43:55,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:55,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:43:55,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:55,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:43:55,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:43:55,459 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 409 out of 449 [2023-11-26 11:43:55,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 395 transitions, 814 flow. Second operand has 5 states, 5 states have (on average 412.6) internal successors, (2063), 5 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:55,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:55,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 409 of 449 [2023-11-26 11:43:55,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:43:55,636 INFO L124 PetriNetUnfolderBase]: 14/606 cut-off events. [2023-11-26 11:43:55,637 INFO L125 PetriNetUnfolderBase]: For 3/4 co-relation queries the response was YES. [2023-11-26 11:43:55,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 649 conditions, 606 events. 14/606 cut-off events. For 3/4 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1822 event pairs, 0 based on Foata normal form. 2/544 useless extension candidates. Maximal degree in co-relation 395. Up to 10 conditions per place. [2023-11-26 11:43:55,644 INFO L140 encePairwiseOnDemand]: 435/449 looper letters, 12 selfloop transitions, 12 changer transitions 0/397 dead transitions. [2023-11-26 11:43:55,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 397 transitions, 866 flow [2023-11-26 11:43:55,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:43:55,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 11:43:55,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2071 transitions. [2023-11-26 11:43:55,652 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9224944320712695 [2023-11-26 11:43:55,652 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2071 transitions. [2023-11-26 11:43:55,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2071 transitions. [2023-11-26 11:43:55,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:43:55,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2071 transitions. [2023-11-26 11:43:55,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 414.2) internal successors, (2071), 5 states have internal predecessors, (2071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:55,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 449.0) internal successors, (2694), 6 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:55,668 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 449.0) internal successors, (2694), 6 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:55,669 INFO L175 Difference]: Start difference. First operand has 392 places, 395 transitions, 814 flow. Second operand 5 states and 2071 transitions. [2023-11-26 11:43:55,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 397 transitions, 866 flow [2023-11-26 11:43:55,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 397 transitions, 866 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:43:55,679 INFO L231 Difference]: Finished difference. Result has 397 places, 397 transitions, 854 flow [2023-11-26 11:43:55,680 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=814, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=854, PETRI_PLACES=397, PETRI_TRANSITIONS=397} [2023-11-26 11:43:55,681 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, -9 predicate places. [2023-11-26 11:43:55,681 INFO L495 AbstractCegarLoop]: Abstraction has has 397 places, 397 transitions, 854 flow [2023-11-26 11:43:55,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 412.6) internal successors, (2063), 5 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:55,683 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:55,683 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:43:55,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:43:55,684 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:43:55,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:55,684 INFO L85 PathProgramCache]: Analyzing trace with hash 734229805, now seen corresponding path program 1 times [2023-11-26 11:43:55,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:55,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595350285] [2023-11-26 11:43:55,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:55,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:55,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,896 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 11:43:55,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:55,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595350285] [2023-11-26 11:43:55,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595350285] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:43:55,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135081452] [2023-11-26 11:43:55,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:55,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:43:55,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:55,902 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:43:55,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:43:56,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:43:56,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:43:56,302 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 11:43:56,302 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:43:56,429 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 11:43:56,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135081452] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:43:56,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:43:56,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2023-11-26 11:43:56,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079764353] [2023-11-26 11:43:56,431 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:43:56,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-26 11:43:56,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:56,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-26 11:43:56,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2023-11-26 11:43:56,927 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 449 [2023-11-26 11:43:56,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 397 transitions, 854 flow. Second operand has 15 states, 15 states have (on average 405.73333333333335) internal successors, (6086), 15 states have internal predecessors, (6086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:56,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:56,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 449 [2023-11-26 11:43:56,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:43:57,306 INFO L124 PetriNetUnfolderBase]: 14/640 cut-off events. [2023-11-26 11:43:57,307 INFO L125 PetriNetUnfolderBase]: For 13/14 co-relation queries the response was YES. [2023-11-26 11:43:57,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 727 conditions, 640 events. 14/640 cut-off events. For 13/14 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1771 event pairs, 0 based on Foata normal form. 4/580 useless extension candidates. Maximal degree in co-relation 503. Up to 10 conditions per place. [2023-11-26 11:43:57,315 INFO L140 encePairwiseOnDemand]: 429/449 looper letters, 20 selfloop transitions, 26 changer transitions 0/413 dead transitions. [2023-11-26 11:43:57,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 413 transitions, 982 flow [2023-11-26 11:43:57,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 11:43:57,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-26 11:43:57,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4483 transitions. [2023-11-26 11:43:57,328 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9076736181413242 [2023-11-26 11:43:57,329 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4483 transitions. [2023-11-26 11:43:57,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4483 transitions. [2023-11-26 11:43:57,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:43:57,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4483 transitions. [2023-11-26 11:43:57,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 407.54545454545456) internal successors, (4483), 11 states have internal predecessors, (4483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:57,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 449.0) internal successors, (5388), 12 states have internal predecessors, (5388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:57,358 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 449.0) internal successors, (5388), 12 states have internal predecessors, (5388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:57,359 INFO L175 Difference]: Start difference. First operand has 397 places, 397 transitions, 854 flow. Second operand 11 states and 4483 transitions. [2023-11-26 11:43:57,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 413 transitions, 982 flow [2023-11-26 11:43:57,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 413 transitions, 962 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-26 11:43:57,370 INFO L231 Difference]: Finished difference. Result has 407 places, 409 transitions, 954 flow [2023-11-26 11:43:57,372 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=834, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=954, PETRI_PLACES=407, PETRI_TRANSITIONS=409} [2023-11-26 11:43:57,372 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, 1 predicate places. [2023-11-26 11:43:57,373 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 409 transitions, 954 flow [2023-11-26 11:43:57,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 405.73333333333335) internal successors, (6086), 15 states have internal predecessors, (6086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:57,375 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:57,376 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:43:57,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:43:57,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:43:57,583 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:43:57,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:57,584 INFO L85 PathProgramCache]: Analyzing trace with hash -146426739, now seen corresponding path program 2 times [2023-11-26 11:43:57,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:57,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218863654] [2023-11-26 11:43:57,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:57,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:58,034 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-26 11:43:58,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:58,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218863654] [2023-11-26 11:43:58,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218863654] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:43:58,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985388593] [2023-11-26 11:43:58,035 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:43:58,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:43:58,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:58,037 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:43:58,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:43:58,199 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 11:43:58,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:43:58,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-26 11:43:58,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:43:58,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-26 11:43:58,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-26 11:43:58,632 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 11:43:58,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-26 11:43:58,686 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 11:43:58,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-11-26 11:43:58,725 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-26 11:43:58,725 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:43:58,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985388593] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:58,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:43:58,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 16 [2023-11-26 11:43:58,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152311175] [2023-11-26 11:43:58,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:58,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:43:58,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:58,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:43:58,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-11-26 11:43:59,269 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 409 out of 449 [2023-11-26 11:43:59,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 409 transitions, 954 flow. Second operand has 7 states, 7 states have (on average 411.42857142857144) internal successors, (2880), 7 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:59,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:59,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 409 of 449 [2023-11-26 11:43:59,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:43:59,456 INFO L124 PetriNetUnfolderBase]: 14/639 cut-off events. [2023-11-26 11:43:59,456 INFO L125 PetriNetUnfolderBase]: For 15/26 co-relation queries the response was YES. [2023-11-26 11:43:59,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 758 conditions, 639 events. 14/639 cut-off events. For 15/26 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1766 event pairs, 0 based on Foata normal form. 8/584 useless extension candidates. Maximal degree in co-relation 505. Up to 27 conditions per place. [2023-11-26 11:43:59,465 INFO L140 encePairwiseOnDemand]: 443/449 looper letters, 14 selfloop transitions, 5 changer transitions 0/408 dead transitions. [2023-11-26 11:43:59,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 408 transitions, 990 flow [2023-11-26 11:43:59,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:43:59,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-26 11:43:59,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2883 transitions. [2023-11-26 11:43:59,474 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9172764874323894 [2023-11-26 11:43:59,475 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2883 transitions. [2023-11-26 11:43:59,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2883 transitions. [2023-11-26 11:43:59,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:43:59,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2883 transitions. [2023-11-26 11:43:59,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 411.85714285714283) internal successors, (2883), 7 states have internal predecessors, (2883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:59,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 449.0) internal successors, (3592), 8 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:59,494 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 449.0) internal successors, (3592), 8 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:59,494 INFO L175 Difference]: Start difference. First operand has 407 places, 409 transitions, 954 flow. Second operand 7 states and 2883 transitions. [2023-11-26 11:43:59,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 408 transitions, 990 flow [2023-11-26 11:43:59,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 408 transitions, 966 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-11-26 11:43:59,506 INFO L231 Difference]: Finished difference. Result has 409 places, 408 transitions, 938 flow [2023-11-26 11:43:59,507 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=928, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=938, PETRI_PLACES=409, PETRI_TRANSITIONS=408} [2023-11-26 11:43:59,508 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, 3 predicate places. [2023-11-26 11:43:59,508 INFO L495 AbstractCegarLoop]: Abstraction has has 409 places, 408 transitions, 938 flow [2023-11-26 11:43:59,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 411.42857142857144) internal successors, (2880), 7 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:59,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:59,510 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:43:59,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:43:59,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:43:59,717 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:43:59,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:59,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1973975062, now seen corresponding path program 1 times [2023-11-26 11:43:59,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:59,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186193067] [2023-11-26 11:43:59,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:59,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:59,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:59,843 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-26 11:43:59,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:59,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186193067] [2023-11-26 11:43:59,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186193067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:59,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:59,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:43:59,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059749087] [2023-11-26 11:43:59,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:59,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:43:59,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:59,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:43:59,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:43:59,889 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 415 out of 449 [2023-11-26 11:43:59,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 408 transitions, 938 flow. Second operand has 3 states, 3 states have (on average 416.3333333333333) internal successors, (1249), 3 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:59,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:59,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 415 of 449 [2023-11-26 11:43:59,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:00,059 INFO L124 PetriNetUnfolderBase]: 25/738 cut-off events. [2023-11-26 11:44:00,059 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-11-26 11:44:00,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 867 conditions, 738 events. 25/738 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2573 event pairs, 6 based on Foata normal form. 0/664 useless extension candidates. Maximal degree in co-relation 757. Up to 33 conditions per place. [2023-11-26 11:44:00,068 INFO L140 encePairwiseOnDemand]: 446/449 looper letters, 14 selfloop transitions, 2 changer transitions 0/408 dead transitions. [2023-11-26 11:44:00,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 408 transitions, 971 flow [2023-11-26 11:44:00,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:00,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:00,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1262 transitions. [2023-11-26 11:44:00,073 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9368968077208611 [2023-11-26 11:44:00,073 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1262 transitions. [2023-11-26 11:44:00,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1262 transitions. [2023-11-26 11:44:00,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:00,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1262 transitions. [2023-11-26 11:44:00,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 420.6666666666667) internal successors, (1262), 3 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:00,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:00,081 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:00,082 INFO L175 Difference]: Start difference. First operand has 409 places, 408 transitions, 938 flow. Second operand 3 states and 1262 transitions. [2023-11-26 11:44:00,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 408 transitions, 971 flow [2023-11-26 11:44:00,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 408 transitions, 962 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:44:00,093 INFO L231 Difference]: Finished difference. Result has 405 places, 407 transitions, 931 flow [2023-11-26 11:44:00,094 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=927, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=931, PETRI_PLACES=405, PETRI_TRANSITIONS=407} [2023-11-26 11:44:00,095 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, -1 predicate places. [2023-11-26 11:44:00,095 INFO L495 AbstractCegarLoop]: Abstraction has has 405 places, 407 transitions, 931 flow [2023-11-26 11:44:00,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 416.3333333333333) internal successors, (1249), 3 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:00,096 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:00,096 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:00,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 11:44:00,096 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:44:00,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:00,097 INFO L85 PathProgramCache]: Analyzing trace with hash 2111738367, now seen corresponding path program 1 times [2023-11-26 11:44:00,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:00,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337487398] [2023-11-26 11:44:00,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:00,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:00,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:00,216 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-26 11:44:00,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:00,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337487398] [2023-11-26 11:44:00,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337487398] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:00,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:00,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:00,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731414205] [2023-11-26 11:44:00,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:00,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:00,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:00,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:00,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:00,230 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 449 [2023-11-26 11:44:00,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 407 transitions, 931 flow. Second operand has 3 states, 3 states have (on average 421.3333333333333) internal successors, (1264), 3 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:00,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:00,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 449 [2023-11-26 11:44:00,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:00,555 INFO L124 PetriNetUnfolderBase]: 43/1191 cut-off events. [2023-11-26 11:44:00,556 INFO L125 PetriNetUnfolderBase]: For 19/20 co-relation queries the response was YES. [2023-11-26 11:44:00,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1316 conditions, 1191 events. 43/1191 cut-off events. For 19/20 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 5355 event pairs, 2 based on Foata normal form. 0/1046 useless extension candidates. Maximal degree in co-relation 1098. Up to 41 conditions per place. [2023-11-26 11:44:00,573 INFO L140 encePairwiseOnDemand]: 445/449 looper letters, 12 selfloop transitions, 2 changer transitions 0/410 dead transitions. [2023-11-26 11:44:00,573 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 410 transitions, 968 flow [2023-11-26 11:44:00,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:00,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:00,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1276 transitions. [2023-11-26 11:44:00,579 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.947290274684484 [2023-11-26 11:44:00,580 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1276 transitions. [2023-11-26 11:44:00,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1276 transitions. [2023-11-26 11:44:00,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:00,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1276 transitions. [2023-11-26 11:44:00,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 425.3333333333333) internal successors, (1276), 3 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:00,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:00,592 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:00,592 INFO L175 Difference]: Start difference. First operand has 405 places, 407 transitions, 931 flow. Second operand 3 states and 1276 transitions. [2023-11-26 11:44:00,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 410 transitions, 968 flow [2023-11-26 11:44:00,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 410 transitions, 964 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:00,606 INFO L231 Difference]: Finished difference. Result has 404 places, 407 transitions, 937 flow [2023-11-26 11:44:00,608 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=923, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=937, PETRI_PLACES=404, PETRI_TRANSITIONS=407} [2023-11-26 11:44:00,608 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, -2 predicate places. [2023-11-26 11:44:00,608 INFO L495 AbstractCegarLoop]: Abstraction has has 404 places, 407 transitions, 937 flow [2023-11-26 11:44:00,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 421.3333333333333) internal successors, (1264), 3 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:00,609 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:00,610 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:00,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 11:44:00,610 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:44:00,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:00,611 INFO L85 PathProgramCache]: Analyzing trace with hash 310463035, now seen corresponding path program 1 times [2023-11-26 11:44:00,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:00,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185742995] [2023-11-26 11:44:00,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:00,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:00,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:00,735 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-26 11:44:00,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:00,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185742995] [2023-11-26 11:44:00,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185742995] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:00,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:00,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:00,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180272056] [2023-11-26 11:44:00,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:00,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:00,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:00,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:00,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:00,773 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 415 out of 449 [2023-11-26 11:44:00,775 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 407 transitions, 937 flow. Second operand has 3 states, 3 states have (on average 416.6666666666667) internal successors, (1250), 3 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:00,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:00,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 415 of 449 [2023-11-26 11:44:00,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:01,015 INFO L124 PetriNetUnfolderBase]: 48/1004 cut-off events. [2023-11-26 11:44:01,015 INFO L125 PetriNetUnfolderBase]: For 34/36 co-relation queries the response was YES. [2023-11-26 11:44:01,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1167 conditions, 1004 events. 48/1004 cut-off events. For 34/36 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4198 event pairs, 10 based on Foata normal form. 0/880 useless extension candidates. Maximal degree in co-relation 950. Up to 61 conditions per place. [2023-11-26 11:44:01,028 INFO L140 encePairwiseOnDemand]: 446/449 looper letters, 14 selfloop transitions, 2 changer transitions 0/407 dead transitions. [2023-11-26 11:44:01,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 407 transitions, 970 flow [2023-11-26 11:44:01,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:01,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:01,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1262 transitions. [2023-11-26 11:44:01,033 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9368968077208611 [2023-11-26 11:44:01,033 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1262 transitions. [2023-11-26 11:44:01,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1262 transitions. [2023-11-26 11:44:01,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:01,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1262 transitions. [2023-11-26 11:44:01,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 420.6666666666667) internal successors, (1262), 3 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:01,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:01,041 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:01,042 INFO L175 Difference]: Start difference. First operand has 404 places, 407 transitions, 937 flow. Second operand 3 states and 1262 transitions. [2023-11-26 11:44:01,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 407 transitions, 970 flow [2023-11-26 11:44:01,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 407 transitions, 970 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:44:01,052 INFO L231 Difference]: Finished difference. Result has 405 places, 406 transitions, 939 flow [2023-11-26 11:44:01,053 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=935, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=939, PETRI_PLACES=405, PETRI_TRANSITIONS=406} [2023-11-26 11:44:01,054 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, -1 predicate places. [2023-11-26 11:44:01,054 INFO L495 AbstractCegarLoop]: Abstraction has has 405 places, 406 transitions, 939 flow [2023-11-26 11:44:01,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 416.6666666666667) internal successors, (1250), 3 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:01,055 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:01,055 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:01,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 11:44:01,056 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:44:01,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:01,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1039411794, now seen corresponding path program 1 times [2023-11-26 11:44:01,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:01,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353207096] [2023-11-26 11:44:01,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:01,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,164 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-26 11:44:01,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:01,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353207096] [2023-11-26 11:44:01,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353207096] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:01,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:01,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:01,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234137323] [2023-11-26 11:44:01,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:01,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:01,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:01,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:01,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:01,198 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 409 out of 449 [2023-11-26 11:44:01,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 406 transitions, 939 flow. Second operand has 3 states, 3 states have (on average 410.3333333333333) internal successors, (1231), 3 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:01,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:01,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 409 of 449 [2023-11-26 11:44:01,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:01,509 INFO L124 PetriNetUnfolderBase]: 45/1154 cut-off events. [2023-11-26 11:44:01,510 INFO L125 PetriNetUnfolderBase]: For 16/28 co-relation queries the response was YES. [2023-11-26 11:44:01,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1336 conditions, 1154 events. 45/1154 cut-off events. For 16/28 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4862 event pairs, 5 based on Foata normal form. 2/1041 useless extension candidates. Maximal degree in co-relation 1118. Up to 36 conditions per place. [2023-11-26 11:44:01,523 INFO L140 encePairwiseOnDemand]: 439/449 looper letters, 16 selfloop transitions, 5 changer transitions 0/405 dead transitions. [2023-11-26 11:44:01,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 405 transitions, 980 flow [2023-11-26 11:44:01,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:01,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:01,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1253 transitions. [2023-11-26 11:44:01,528 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9302152932442465 [2023-11-26 11:44:01,528 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1253 transitions. [2023-11-26 11:44:01,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1253 transitions. [2023-11-26 11:44:01,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:01,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1253 transitions. [2023-11-26 11:44:01,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 417.6666666666667) internal successors, (1253), 3 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:01,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:01,537 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:01,537 INFO L175 Difference]: Start difference. First operand has 405 places, 406 transitions, 939 flow. Second operand 3 states and 1253 transitions. [2023-11-26 11:44:01,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 405 transitions, 980 flow [2023-11-26 11:44:01,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 405 transitions, 976 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:01,548 INFO L231 Difference]: Finished difference. Result has 402 places, 404 transitions, 957 flow [2023-11-26 11:44:01,549 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=925, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=957, PETRI_PLACES=402, PETRI_TRANSITIONS=404} [2023-11-26 11:44:01,550 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, -4 predicate places. [2023-11-26 11:44:01,550 INFO L495 AbstractCegarLoop]: Abstraction has has 402 places, 404 transitions, 957 flow [2023-11-26 11:44:01,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 410.3333333333333) internal successors, (1231), 3 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:01,551 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:01,551 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:01,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 11:44:01,552 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:44:01,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:01,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1566796122, now seen corresponding path program 1 times [2023-11-26 11:44:01,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:01,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723137750] [2023-11-26 11:44:01,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:01,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,771 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-26 11:44:01,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:01,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723137750] [2023-11-26 11:44:01,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723137750] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:01,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:01,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:44:01,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230667093] [2023-11-26 11:44:01,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:01,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:44:01,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:01,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:44:01,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:44:01,859 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 419 out of 449 [2023-11-26 11:44:01,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 404 transitions, 957 flow. Second operand has 4 states, 4 states have (on average 420.25) internal successors, (1681), 4 states have internal predecessors, (1681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:01,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:01,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 419 of 449 [2023-11-26 11:44:01,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:02,198 INFO L124 PetriNetUnfolderBase]: 46/1324 cut-off events. [2023-11-26 11:44:02,199 INFO L125 PetriNetUnfolderBase]: For 43/65 co-relation queries the response was YES. [2023-11-26 11:44:02,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1557 conditions, 1324 events. 46/1324 cut-off events. For 43/65 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6119 event pairs, 7 based on Foata normal form. 3/1196 useless extension candidates. Maximal degree in co-relation 1338. Up to 34 conditions per place. [2023-11-26 11:44:02,216 INFO L140 encePairwiseOnDemand]: 444/449 looper letters, 20 selfloop transitions, 4 changer transitions 0/415 dead transitions. [2023-11-26 11:44:02,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 415 transitions, 1032 flow [2023-11-26 11:44:02,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:44:02,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 11:44:02,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2120 transitions. [2023-11-26 11:44:02,223 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9443207126948775 [2023-11-26 11:44:02,223 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2120 transitions. [2023-11-26 11:44:02,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2120 transitions. [2023-11-26 11:44:02,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:02,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2120 transitions. [2023-11-26 11:44:02,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 424.0) internal successors, (2120), 5 states have internal predecessors, (2120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:02,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 449.0) internal successors, (2694), 6 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:02,237 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 449.0) internal successors, (2694), 6 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:02,237 INFO L175 Difference]: Start difference. First operand has 402 places, 404 transitions, 957 flow. Second operand 5 states and 2120 transitions. [2023-11-26 11:44:02,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 415 transitions, 1032 flow [2023-11-26 11:44:02,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 415 transitions, 1022 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:02,248 INFO L231 Difference]: Finished difference. Result has 407 places, 406 transitions, 972 flow [2023-11-26 11:44:02,249 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=943, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=972, PETRI_PLACES=407, PETRI_TRANSITIONS=406} [2023-11-26 11:44:02,250 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, 1 predicate places. [2023-11-26 11:44:02,251 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 406 transitions, 972 flow [2023-11-26 11:44:02,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 420.25) internal successors, (1681), 4 states have internal predecessors, (1681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:02,252 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:02,252 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:02,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 11:44:02,252 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:44:02,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:02,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1134624950, now seen corresponding path program 1 times [2023-11-26 11:44:02,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:02,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149106935] [2023-11-26 11:44:02,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:02,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,361 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-26 11:44:02,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:02,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149106935] [2023-11-26 11:44:02,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149106935] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:02,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:02,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:02,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104957212] [2023-11-26 11:44:02,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:02,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:02,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:02,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:02,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:02,376 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 449 [2023-11-26 11:44:02,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 406 transitions, 972 flow. Second operand has 3 states, 3 states have (on average 421.6666666666667) internal successors, (1265), 3 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:02,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:02,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 449 [2023-11-26 11:44:02,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:02,806 INFO L124 PetriNetUnfolderBase]: 62/1755 cut-off events. [2023-11-26 11:44:02,807 INFO L125 PetriNetUnfolderBase]: For 35/36 co-relation queries the response was YES. [2023-11-26 11:44:02,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2029 conditions, 1755 events. 62/1755 cut-off events. For 35/36 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 10006 event pairs, 7 based on Foata normal form. 0/1591 useless extension candidates. Maximal degree in co-relation 1808. Up to 76 conditions per place. [2023-11-26 11:44:02,826 INFO L140 encePairwiseOnDemand]: 445/449 looper letters, 12 selfloop transitions, 2 changer transitions 0/409 dead transitions. [2023-11-26 11:44:02,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 409 transitions, 1009 flow [2023-11-26 11:44:02,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:02,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:02,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1276 transitions. [2023-11-26 11:44:02,831 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.947290274684484 [2023-11-26 11:44:02,831 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1276 transitions. [2023-11-26 11:44:02,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1276 transitions. [2023-11-26 11:44:02,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:02,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1276 transitions. [2023-11-26 11:44:02,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 425.3333333333333) internal successors, (1276), 3 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:02,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:02,839 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:02,840 INFO L175 Difference]: Start difference. First operand has 407 places, 406 transitions, 972 flow. Second operand 3 states and 1276 transitions. [2023-11-26 11:44:02,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 409 transitions, 1009 flow [2023-11-26 11:44:02,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 409 transitions, 1009 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:44:02,851 INFO L231 Difference]: Finished difference. Result has 408 places, 406 transitions, 982 flow [2023-11-26 11:44:02,852 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=968, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=982, PETRI_PLACES=408, PETRI_TRANSITIONS=406} [2023-11-26 11:44:02,853 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, 2 predicate places. [2023-11-26 11:44:02,853 INFO L495 AbstractCegarLoop]: Abstraction has has 408 places, 406 transitions, 982 flow [2023-11-26 11:44:02,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 421.6666666666667) internal successors, (1265), 3 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:02,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:02,854 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:02,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 11:44:02,854 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:44:02,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:02,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1698457432, now seen corresponding path program 1 times [2023-11-26 11:44:02,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:02,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17127622] [2023-11-26 11:44:02,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:02,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:03,229 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-26 11:44:03,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:03,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17127622] [2023-11-26 11:44:03,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17127622] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:44:03,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798910679] [2023-11-26 11:44:03,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:03,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:03,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:03,231 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:03,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:44:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:03,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 11:44:03,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:03,770 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-26 11:44:03,770 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:44:03,986 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-26 11:44:03,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798910679] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:44:03,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:44:03,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2023-11-26 11:44:03,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396436737] [2023-11-26 11:44:03,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:44:03,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-26 11:44:03,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:03,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-26 11:44:03,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2023-11-26 11:44:04,859 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 449 [2023-11-26 11:44:04,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 406 transitions, 982 flow. Second operand has 22 states, 22 states have (on average 405.54545454545456) internal successors, (8922), 22 states have internal predecessors, (8922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:04,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:04,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 449 [2023-11-26 11:44:04,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:05,600 INFO L124 PetriNetUnfolderBase]: 34/1354 cut-off events. [2023-11-26 11:44:05,600 INFO L125 PetriNetUnfolderBase]: For 55/59 co-relation queries the response was YES. [2023-11-26 11:44:05,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1628 conditions, 1354 events. 34/1354 cut-off events. For 55/59 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5844 event pairs, 1 based on Foata normal form. 4/1243 useless extension candidates. Maximal degree in co-relation 1359. Up to 19 conditions per place. [2023-11-26 11:44:05,619 INFO L140 encePairwiseOnDemand]: 429/449 looper letters, 24 selfloop transitions, 38 changer transitions 0/426 dead transitions. [2023-11-26 11:44:05,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 426 transitions, 1202 flow [2023-11-26 11:44:05,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-26 11:44:05,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-26 11:44:05,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 6917 transitions. [2023-11-26 11:44:05,640 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9061967771518407 [2023-11-26 11:44:05,640 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 6917 transitions. [2023-11-26 11:44:05,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 6917 transitions. [2023-11-26 11:44:05,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:05,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 6917 transitions. [2023-11-26 11:44:05,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 406.88235294117646) internal successors, (6917), 17 states have internal predecessors, (6917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:05,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 449.0) internal successors, (8082), 18 states have internal predecessors, (8082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:05,687 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 449.0) internal successors, (8082), 18 states have internal predecessors, (8082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:05,687 INFO L175 Difference]: Start difference. First operand has 408 places, 406 transitions, 982 flow. Second operand 17 states and 6917 transitions. [2023-11-26 11:44:05,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 426 transitions, 1202 flow [2023-11-26 11:44:05,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 426 transitions, 1202 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:44:05,701 INFO L231 Difference]: Finished difference. Result has 427 places, 420 transitions, 1166 flow [2023-11-26 11:44:05,702 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=982, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1166, PETRI_PLACES=427, PETRI_TRANSITIONS=420} [2023-11-26 11:44:05,703 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, 21 predicate places. [2023-11-26 11:44:05,703 INFO L495 AbstractCegarLoop]: Abstraction has has 427 places, 420 transitions, 1166 flow [2023-11-26 11:44:05,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 405.54545454545456) internal successors, (8922), 22 states have internal predecessors, (8922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:05,707 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:05,707 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:05,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:44:05,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:05,915 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:44:05,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:05,915 INFO L85 PathProgramCache]: Analyzing trace with hash -646095544, now seen corresponding path program 2 times [2023-11-26 11:44:05,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:05,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23128244] [2023-11-26 11:44:05,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:05,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:06,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:07,209 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-26 11:44:07,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:07,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23128244] [2023-11-26 11:44:07,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23128244] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:07,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:07,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:44:07,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692221076] [2023-11-26 11:44:07,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:07,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:44:07,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:07,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:44:07,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:44:07,705 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 409 out of 449 [2023-11-26 11:44:07,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 420 transitions, 1166 flow. Second operand has 6 states, 6 states have (on average 411.8333333333333) internal successors, (2471), 6 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:07,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:07,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 409 of 449 [2023-11-26 11:44:07,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:08,177 INFO L124 PetriNetUnfolderBase]: 49/1486 cut-off events. [2023-11-26 11:44:08,177 INFO L125 PetriNetUnfolderBase]: For 91/99 co-relation queries the response was YES. [2023-11-26 11:44:08,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1894 conditions, 1486 events. 49/1486 cut-off events. For 91/99 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6941 event pairs, 3 based on Foata normal form. 5/1372 useless extension candidates. Maximal degree in co-relation 1621. Up to 72 conditions per place. [2023-11-26 11:44:08,197 INFO L140 encePairwiseOnDemand]: 443/449 looper letters, 20 selfloop transitions, 6 changer transitions 0/423 dead transitions. [2023-11-26 11:44:08,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 423 transitions, 1228 flow [2023-11-26 11:44:08,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:44:08,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:44:08,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2480 transitions. [2023-11-26 11:44:08,205 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9205642167780252 [2023-11-26 11:44:08,205 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2480 transitions. [2023-11-26 11:44:08,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2480 transitions. [2023-11-26 11:44:08,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:08,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2480 transitions. [2023-11-26 11:44:08,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 413.3333333333333) internal successors, (2480), 6 states have internal predecessors, (2480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:08,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 449.0) internal successors, (3143), 7 states have internal predecessors, (3143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:08,220 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 449.0) internal successors, (3143), 7 states have internal predecessors, (3143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:08,220 INFO L175 Difference]: Start difference. First operand has 427 places, 420 transitions, 1166 flow. Second operand 6 states and 2480 transitions. [2023-11-26 11:44:08,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 423 transitions, 1228 flow [2023-11-26 11:44:08,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 423 transitions, 1176 flow, removed 8 selfloop flow, removed 8 redundant places. [2023-11-26 11:44:08,233 INFO L231 Difference]: Finished difference. Result has 423 places, 419 transitions, 1124 flow [2023-11-26 11:44:08,233 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=1112, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1124, PETRI_PLACES=423, PETRI_TRANSITIONS=419} [2023-11-26 11:44:08,234 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, 17 predicate places. [2023-11-26 11:44:08,234 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 419 transitions, 1124 flow [2023-11-26 11:44:08,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 411.8333333333333) internal successors, (2471), 6 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:08,235 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:08,236 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:08,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-26 11:44:08,236 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:44:08,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:08,237 INFO L85 PathProgramCache]: Analyzing trace with hash 234823657, now seen corresponding path program 1 times [2023-11-26 11:44:08,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:08,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538282646] [2023-11-26 11:44:08,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:08,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:08,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:08,378 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-26 11:44:08,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:08,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538282646] [2023-11-26 11:44:08,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538282646] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:08,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:08,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:08,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060788352] [2023-11-26 11:44:08,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:08,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:08,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:08,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:08,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:08,427 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 415 out of 449 [2023-11-26 11:44:08,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 419 transitions, 1124 flow. Second operand has 3 states, 3 states have (on average 417.0) internal successors, (1251), 3 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:08,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:08,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 415 of 449 [2023-11-26 11:44:08,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:08,895 INFO L124 PetriNetUnfolderBase]: 63/1488 cut-off events. [2023-11-26 11:44:08,895 INFO L125 PetriNetUnfolderBase]: For 114/130 co-relation queries the response was YES. [2023-11-26 11:44:08,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1917 conditions, 1488 events. 63/1488 cut-off events. For 114/130 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6947 event pairs, 14 based on Foata normal form. 4/1385 useless extension candidates. Maximal degree in co-relation 1574. Up to 90 conditions per place. [2023-11-26 11:44:08,916 INFO L140 encePairwiseOnDemand]: 446/449 looper letters, 16 selfloop transitions, 2 changer transitions 0/419 dead transitions. [2023-11-26 11:44:08,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 419 transitions, 1161 flow [2023-11-26 11:44:08,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:08,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:08,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1262 transitions. [2023-11-26 11:44:08,921 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9368968077208611 [2023-11-26 11:44:08,921 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1262 transitions. [2023-11-26 11:44:08,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1262 transitions. [2023-11-26 11:44:08,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:08,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1262 transitions. [2023-11-26 11:44:08,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 420.6666666666667) internal successors, (1262), 3 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:08,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:08,931 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:08,931 INFO L175 Difference]: Start difference. First operand has 423 places, 419 transitions, 1124 flow. Second operand 3 states and 1262 transitions. [2023-11-26 11:44:08,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 419 transitions, 1161 flow [2023-11-26 11:44:08,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 419 transitions, 1149 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:44:08,984 INFO L231 Difference]: Finished difference. Result has 419 places, 418 transitions, 1114 flow [2023-11-26 11:44:08,985 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=1110, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1114, PETRI_PLACES=419, PETRI_TRANSITIONS=418} [2023-11-26 11:44:08,985 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, 13 predicate places. [2023-11-26 11:44:08,986 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 418 transitions, 1114 flow [2023-11-26 11:44:08,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 417.0) internal successors, (1251), 3 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:08,986 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:08,987 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:08,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-26 11:44:08,987 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:44:08,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:08,987 INFO L85 PathProgramCache]: Analyzing trace with hash -922852797, now seen corresponding path program 1 times [2023-11-26 11:44:08,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:08,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691562792] [2023-11-26 11:44:08,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:08,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:09,113 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-26 11:44:09,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:09,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691562792] [2023-11-26 11:44:09,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691562792] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:09,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:09,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:09,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571544953] [2023-11-26 11:44:09,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:09,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:09,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:09,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:09,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:09,143 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 409 out of 449 [2023-11-26 11:44:09,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 418 transitions, 1114 flow. Second operand has 3 states, 3 states have (on average 410.6666666666667) internal successors, (1232), 3 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:09,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:09,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 409 of 449 [2023-11-26 11:44:09,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:09,728 INFO L124 PetriNetUnfolderBase]: 84/2045 cut-off events. [2023-11-26 11:44:09,728 INFO L125 PetriNetUnfolderBase]: For 116/119 co-relation queries the response was YES. [2023-11-26 11:44:09,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2478 conditions, 2045 events. 84/2045 cut-off events. For 116/119 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 11673 event pairs, 15 based on Foata normal form. 4/1886 useless extension candidates. Maximal degree in co-relation 2135. Up to 84 conditions per place. [2023-11-26 11:44:09,753 INFO L140 encePairwiseOnDemand]: 437/449 looper letters, 10 selfloop transitions, 4 changer transitions 39/419 dead transitions. [2023-11-26 11:44:09,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 419 transitions, 1161 flow [2023-11-26 11:44:09,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:09,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:09,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1254 transitions. [2023-11-26 11:44:09,758 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9309576837416481 [2023-11-26 11:44:09,758 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1254 transitions. [2023-11-26 11:44:09,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1254 transitions. [2023-11-26 11:44:09,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:09,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1254 transitions. [2023-11-26 11:44:09,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 418.0) internal successors, (1254), 3 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:09,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:09,765 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:09,765 INFO L175 Difference]: Start difference. First operand has 419 places, 418 transitions, 1114 flow. Second operand 3 states and 1254 transitions. [2023-11-26 11:44:09,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 419 transitions, 1161 flow [2023-11-26 11:44:09,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 419 transitions, 1157 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:09,777 INFO L231 Difference]: Finished difference. Result has 416 places, 379 transitions, 1051 flow [2023-11-26 11:44:09,778 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=1100, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1051, PETRI_PLACES=416, PETRI_TRANSITIONS=379} [2023-11-26 11:44:09,779 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, 10 predicate places. [2023-11-26 11:44:09,779 INFO L495 AbstractCegarLoop]: Abstraction has has 416 places, 379 transitions, 1051 flow [2023-11-26 11:44:09,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 410.6666666666667) internal successors, (1232), 3 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:09,780 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:09,780 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:09,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-26 11:44:09,780 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:44:09,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:09,781 INFO L85 PathProgramCache]: Analyzing trace with hash -591257475, now seen corresponding path program 1 times [2023-11-26 11:44:09,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:09,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192253974] [2023-11-26 11:44:09,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:09,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:09,975 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-26 11:44:09,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:09,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192253974] [2023-11-26 11:44:09,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192253974] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:09,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:09,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:44:09,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146355171] [2023-11-26 11:44:09,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:09,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:44:09,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:09,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:44:09,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:44:10,047 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 419 out of 449 [2023-11-26 11:44:10,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 379 transitions, 1051 flow. Second operand has 4 states, 4 states have (on average 420.5) internal successors, (1682), 4 states have internal predecessors, (1682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:10,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:10,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 419 of 449 [2023-11-26 11:44:10,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:10,640 INFO L124 PetriNetUnfolderBase]: 64/1857 cut-off events. [2023-11-26 11:44:10,640 INFO L125 PetriNetUnfolderBase]: For 147/150 co-relation queries the response was YES. [2023-11-26 11:44:10,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2340 conditions, 1857 events. 64/1857 cut-off events. For 147/150 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 11147 event pairs, 25 based on Foata normal form. 0/1703 useless extension candidates. Maximal degree in co-relation 1996. Up to 76 conditions per place. [2023-11-26 11:44:10,667 INFO L140 encePairwiseOnDemand]: 444/449 looper letters, 15 selfloop transitions, 4 changer transitions 0/386 dead transitions. [2023-11-26 11:44:10,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 386 transitions, 1104 flow [2023-11-26 11:44:10,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:44:10,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 11:44:10,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2115 transitions. [2023-11-26 11:44:10,674 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9420935412026726 [2023-11-26 11:44:10,675 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2115 transitions. [2023-11-26 11:44:10,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2115 transitions. [2023-11-26 11:44:10,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:10,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2115 transitions. [2023-11-26 11:44:10,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 423.0) internal successors, (2115), 5 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:10,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 449.0) internal successors, (2694), 6 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:10,700 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 449.0) internal successors, (2694), 6 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:10,700 INFO L175 Difference]: Start difference. First operand has 416 places, 379 transitions, 1051 flow. Second operand 5 states and 2115 transitions. [2023-11-26 11:44:10,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 386 transitions, 1104 flow [2023-11-26 11:44:10,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 386 transitions, 1096 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:10,725 INFO L231 Difference]: Finished difference. Result has 386 places, 381 transitions, 1068 flow [2023-11-26 11:44:10,726 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=1039, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1068, PETRI_PLACES=386, PETRI_TRANSITIONS=381} [2023-11-26 11:44:10,727 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, -20 predicate places. [2023-11-26 11:44:10,727 INFO L495 AbstractCegarLoop]: Abstraction has has 386 places, 381 transitions, 1068 flow [2023-11-26 11:44:10,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 420.5) internal successors, (1682), 4 states have internal predecessors, (1682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:10,728 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:10,729 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:10,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-26 11:44:10,730 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:44:10,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:10,732 INFO L85 PathProgramCache]: Analyzing trace with hash -508684865, now seen corresponding path program 1 times [2023-11-26 11:44:10,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:10,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554700759] [2023-11-26 11:44:10,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:10,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:11,972 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-26 11:44:11,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:11,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554700759] [2023-11-26 11:44:11,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554700759] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:11,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:11,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:44:11,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203212436] [2023-11-26 11:44:11,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:11,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:44:11,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:11,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:44:11,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:44:12,400 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 409 out of 449 [2023-11-26 11:44:12,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 381 transitions, 1068 flow. Second operand has 6 states, 6 states have (on average 412.0) internal successors, (2472), 6 states have internal predecessors, (2472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:12,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:12,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 409 of 449 [2023-11-26 11:44:12,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:13,057 INFO L124 PetriNetUnfolderBase]: 64/2014 cut-off events. [2023-11-26 11:44:13,057 INFO L125 PetriNetUnfolderBase]: For 151/154 co-relation queries the response was YES. [2023-11-26 11:44:13,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2581 conditions, 2014 events. 64/2014 cut-off events. For 151/154 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 11166 event pairs, 13 based on Foata normal form. 0/1881 useless extension candidates. Maximal degree in co-relation 2374. Up to 80 conditions per place. [2023-11-26 11:44:13,076 INFO L140 encePairwiseOnDemand]: 443/449 looper letters, 19 selfloop transitions, 6 changer transitions 0/384 dead transitions. [2023-11-26 11:44:13,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 384 transitions, 1128 flow [2023-11-26 11:44:13,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:44:13,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:44:13,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2479 transitions. [2023-11-26 11:44:13,082 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9201930215293245 [2023-11-26 11:44:13,082 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2479 transitions. [2023-11-26 11:44:13,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2479 transitions. [2023-11-26 11:44:13,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:13,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2479 transitions. [2023-11-26 11:44:13,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 413.1666666666667) internal successors, (2479), 6 states have internal predecessors, (2479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:13,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 449.0) internal successors, (3143), 7 states have internal predecessors, (3143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:13,096 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 449.0) internal successors, (3143), 7 states have internal predecessors, (3143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:13,097 INFO L175 Difference]: Start difference. First operand has 386 places, 381 transitions, 1068 flow. Second operand 6 states and 2479 transitions. [2023-11-26 11:44:13,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 384 transitions, 1128 flow [2023-11-26 11:44:13,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 384 transitions, 1128 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:44:13,108 INFO L231 Difference]: Finished difference. Result has 390 places, 380 transitions, 1078 flow [2023-11-26 11:44:13,109 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=1066, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1078, PETRI_PLACES=390, PETRI_TRANSITIONS=380} [2023-11-26 11:44:13,110 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, -16 predicate places. [2023-11-26 11:44:13,110 INFO L495 AbstractCegarLoop]: Abstraction has has 390 places, 380 transitions, 1078 flow [2023-11-26 11:44:13,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 412.0) internal successors, (2472), 6 states have internal predecessors, (2472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:13,111 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:13,112 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:13,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-26 11:44:13,112 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:44:13,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:13,113 INFO L85 PathProgramCache]: Analyzing trace with hash 372234336, now seen corresponding path program 1 times [2023-11-26 11:44:13,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:13,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504388257] [2023-11-26 11:44:13,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:13,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:13,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:13,239 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-26 11:44:13,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:13,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504388257] [2023-11-26 11:44:13,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504388257] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:13,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:13,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:13,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563298798] [2023-11-26 11:44:13,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:13,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:13,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:13,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:13,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:13,282 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 415 out of 449 [2023-11-26 11:44:13,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 380 transitions, 1078 flow. Second operand has 3 states, 3 states have (on average 417.3333333333333) internal successors, (1252), 3 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:13,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:13,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 415 of 449 [2023-11-26 11:44:13,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:13,810 INFO L124 PetriNetUnfolderBase]: 85/1865 cut-off events. [2023-11-26 11:44:13,810 INFO L125 PetriNetUnfolderBase]: For 202/205 co-relation queries the response was YES. [2023-11-26 11:44:13,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2497 conditions, 1865 events. 85/1865 cut-off events. For 202/205 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 11885 event pairs, 46 based on Foata normal form. 0/1735 useless extension candidates. Maximal degree in co-relation 2194. Up to 135 conditions per place. [2023-11-26 11:44:13,830 INFO L140 encePairwiseOnDemand]: 446/449 looper letters, 12 selfloop transitions, 2 changer transitions 0/380 dead transitions. [2023-11-26 11:44:13,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 380 transitions, 1107 flow [2023-11-26 11:44:13,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:13,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:13,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1258 transitions. [2023-11-26 11:44:13,834 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9339272457312546 [2023-11-26 11:44:13,834 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1258 transitions. [2023-11-26 11:44:13,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1258 transitions. [2023-11-26 11:44:13,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:13,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1258 transitions. [2023-11-26 11:44:13,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:13,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:13,841 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:13,841 INFO L175 Difference]: Start difference. First operand has 390 places, 380 transitions, 1078 flow. Second operand 3 states and 1258 transitions. [2023-11-26 11:44:13,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 380 transitions, 1107 flow [2023-11-26 11:44:13,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 380 transitions, 1095 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:44:13,854 INFO L231 Difference]: Finished difference. Result has 386 places, 379 transitions, 1068 flow [2023-11-26 11:44:13,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=1064, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1068, PETRI_PLACES=386, PETRI_TRANSITIONS=379} [2023-11-26 11:44:13,855 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, -20 predicate places. [2023-11-26 11:44:13,855 INFO L495 AbstractCegarLoop]: Abstraction has has 386 places, 379 transitions, 1068 flow [2023-11-26 11:44:13,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 417.3333333333333) internal successors, (1252), 3 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:13,856 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:13,856 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:13,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-26 11:44:13,857 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:44:13,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:13,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1339863697, now seen corresponding path program 1 times [2023-11-26 11:44:13,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:13,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14969025] [2023-11-26 11:44:13,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:13,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:13,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:14,939 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-26 11:44:14,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:14,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14969025] [2023-11-26 11:44:14,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14969025] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:14,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:14,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:44:14,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924988082] [2023-11-26 11:44:14,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:14,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:44:14,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:14,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:44:14,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:44:15,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 409 out of 449 [2023-11-26 11:44:15,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 379 transitions, 1068 flow. Second operand has 6 states, 6 states have (on average 411.8333333333333) internal successors, (2471), 6 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:15,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:15,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 409 of 449 [2023-11-26 11:44:15,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:15,780 INFO L124 PetriNetUnfolderBase]: 36/1628 cut-off events. [2023-11-26 11:44:15,780 INFO L125 PetriNetUnfolderBase]: For 111/112 co-relation queries the response was YES. [2023-11-26 11:44:15,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2129 conditions, 1628 events. 36/1628 cut-off events. For 111/112 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 7473 event pairs, 7 based on Foata normal form. 0/1547 useless extension candidates. Maximal degree in co-relation 2017. Up to 70 conditions per place. [2023-11-26 11:44:15,794 INFO L140 encePairwiseOnDemand]: 443/449 looper letters, 19 selfloop transitions, 6 changer transitions 0/382 dead transitions. [2023-11-26 11:44:15,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 382 transitions, 1128 flow [2023-11-26 11:44:15,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:44:15,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:44:15,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2479 transitions. [2023-11-26 11:44:15,799 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9201930215293245 [2023-11-26 11:44:15,799 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2479 transitions. [2023-11-26 11:44:15,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2479 transitions. [2023-11-26 11:44:15,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:15,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2479 transitions. [2023-11-26 11:44:15,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 413.1666666666667) internal successors, (2479), 6 states have internal predecessors, (2479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:15,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 449.0) internal successors, (3143), 7 states have internal predecessors, (3143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:15,809 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 449.0) internal successors, (3143), 7 states have internal predecessors, (3143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:15,810 INFO L175 Difference]: Start difference. First operand has 386 places, 379 transitions, 1068 flow. Second operand 6 states and 2479 transitions. [2023-11-26 11:44:15,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 382 transitions, 1128 flow [2023-11-26 11:44:15,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 382 transitions, 1124 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:15,821 INFO L231 Difference]: Finished difference. Result has 388 places, 378 transitions, 1074 flow [2023-11-26 11:44:15,822 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=1062, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1074, PETRI_PLACES=388, PETRI_TRANSITIONS=378} [2023-11-26 11:44:15,822 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, -18 predicate places. [2023-11-26 11:44:15,822 INFO L495 AbstractCegarLoop]: Abstraction has has 388 places, 378 transitions, 1074 flow [2023-11-26 11:44:15,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 411.8333333333333) internal successors, (2471), 6 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:15,823 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:15,823 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:15,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-26 11:44:15,824 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:44:15,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:15,824 INFO L85 PathProgramCache]: Analyzing trace with hash 206590694, now seen corresponding path program 1 times [2023-11-26 11:44:15,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:15,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537120435] [2023-11-26 11:44:15,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:15,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:15,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:17,012 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-26 11:44:17,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:17,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537120435] [2023-11-26 11:44:17,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537120435] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:17,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:17,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:44:17,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588163880] [2023-11-26 11:44:17,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:17,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:44:17,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:17,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:44:17,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:44:17,506 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 409 out of 449 [2023-11-26 11:44:17,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 378 transitions, 1074 flow. Second operand has 6 states, 6 states have (on average 412.0) internal successors, (2472), 6 states have internal predecessors, (2472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:17,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:17,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 409 of 449 [2023-11-26 11:44:17,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:17,963 INFO L124 PetriNetUnfolderBase]: 64/1941 cut-off events. [2023-11-26 11:44:17,963 INFO L125 PetriNetUnfolderBase]: For 163/166 co-relation queries the response was YES. [2023-11-26 11:44:17,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2560 conditions, 1941 events. 64/1941 cut-off events. For 163/166 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 10934 event pairs, 13 based on Foata normal form. 0/1850 useless extension candidates. Maximal degree in co-relation 2364. Up to 80 conditions per place. [2023-11-26 11:44:17,983 INFO L140 encePairwiseOnDemand]: 443/449 looper letters, 19 selfloop transitions, 6 changer transitions 0/381 dead transitions. [2023-11-26 11:44:17,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 381 transitions, 1134 flow [2023-11-26 11:44:17,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:44:17,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:44:17,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2479 transitions. [2023-11-26 11:44:17,988 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9201930215293245 [2023-11-26 11:44:17,989 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2479 transitions. [2023-11-26 11:44:17,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2479 transitions. [2023-11-26 11:44:17,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:17,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2479 transitions. [2023-11-26 11:44:17,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 413.1666666666667) internal successors, (2479), 6 states have internal predecessors, (2479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:17,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 449.0) internal successors, (3143), 7 states have internal predecessors, (3143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:17,998 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 449.0) internal successors, (3143), 7 states have internal predecessors, (3143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:17,998 INFO L175 Difference]: Start difference. First operand has 388 places, 378 transitions, 1074 flow. Second operand 6 states and 2479 transitions. [2023-11-26 11:44:17,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 381 transitions, 1134 flow [2023-11-26 11:44:18,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 381 transitions, 1122 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:44:18,011 INFO L231 Difference]: Finished difference. Result has 387 places, 377 transitions, 1072 flow [2023-11-26 11:44:18,012 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=1060, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1072, PETRI_PLACES=387, PETRI_TRANSITIONS=377} [2023-11-26 11:44:18,012 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, -19 predicate places. [2023-11-26 11:44:18,012 INFO L495 AbstractCegarLoop]: Abstraction has has 387 places, 377 transitions, 1072 flow [2023-11-26 11:44:18,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 412.0) internal successors, (2472), 6 states have internal predecessors, (2472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:18,013 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:18,014 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:18,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-26 11:44:18,014 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:44:18,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:18,015 INFO L85 PathProgramCache]: Analyzing trace with hash 855837803, now seen corresponding path program 1 times [2023-11-26 11:44:18,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:18,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454424839] [2023-11-26 11:44:18,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:18,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:18,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:19,116 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-26 11:44:19,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:19,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454424839] [2023-11-26 11:44:19,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454424839] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:19,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:19,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:44:19,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64291221] [2023-11-26 11:44:19,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:19,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:44:19,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:19,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:44:19,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:44:19,555 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 409 out of 449 [2023-11-26 11:44:19,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 377 transitions, 1072 flow. Second operand has 6 states, 6 states have (on average 412.0) internal successors, (2472), 6 states have internal predecessors, (2472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:19,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:19,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 409 of 449 [2023-11-26 11:44:19,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:19,954 INFO L124 PetriNetUnfolderBase]: 21/1491 cut-off events. [2023-11-26 11:44:19,954 INFO L125 PetriNetUnfolderBase]: For 90/93 co-relation queries the response was YES. [2023-11-26 11:44:19,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1962 conditions, 1491 events. 21/1491 cut-off events. For 90/93 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 6321 event pairs, 5 based on Foata normal form. 0/1437 useless extension candidates. Maximal degree in co-relation 1856. Up to 55 conditions per place. [2023-11-26 11:44:19,975 INFO L140 encePairwiseOnDemand]: 444/449 looper letters, 14 selfloop transitions, 4 changer transitions 0/376 dead transitions. [2023-11-26 11:44:19,976 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 376 transitions, 1106 flow [2023-11-26 11:44:19,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:44:19,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:44:19,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2473 transitions. [2023-11-26 11:44:19,981 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9179658500371195 [2023-11-26 11:44:19,982 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2473 transitions. [2023-11-26 11:44:19,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2473 transitions. [2023-11-26 11:44:19,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:19,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2473 transitions. [2023-11-26 11:44:19,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 412.1666666666667) internal successors, (2473), 6 states have internal predecessors, (2473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:19,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 449.0) internal successors, (3143), 7 states have internal predecessors, (3143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:19,991 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 449.0) internal successors, (3143), 7 states have internal predecessors, (3143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:19,992 INFO L175 Difference]: Start difference. First operand has 387 places, 377 transitions, 1072 flow. Second operand 6 states and 2473 transitions. [2023-11-26 11:44:19,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 376 transitions, 1106 flow [2023-11-26 11:44:19,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 376 transitions, 1094 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:44:20,005 INFO L231 Difference]: Finished difference. Result has 386 places, 376 transitions, 1066 flow [2023-11-26 11:44:20,006 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=1058, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1066, PETRI_PLACES=386, PETRI_TRANSITIONS=376} [2023-11-26 11:44:20,006 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, -20 predicate places. [2023-11-26 11:44:20,007 INFO L495 AbstractCegarLoop]: Abstraction has has 386 places, 376 transitions, 1066 flow [2023-11-26 11:44:20,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 412.0) internal successors, (2472), 6 states have internal predecessors, (2472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:20,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:20,008 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:20,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-26 11:44:20,009 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:44:20,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:20,009 INFO L85 PathProgramCache]: Analyzing trace with hash -84598241, now seen corresponding path program 1 times [2023-11-26 11:44:20,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:20,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429987] [2023-11-26 11:44:20,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:20,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:20,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:20,188 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-26 11:44:20,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:20,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429987] [2023-11-26 11:44:20,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429987] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:20,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:20,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:20,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72349719] [2023-11-26 11:44:20,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:20,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:20,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:20,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:20,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:20,223 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 415 out of 449 [2023-11-26 11:44:20,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 376 transitions, 1066 flow. Second operand has 3 states, 3 states have (on average 416.6666666666667) internal successors, (1250), 3 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:20,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:20,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 415 of 449 [2023-11-26 11:44:20,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:20,669 INFO L124 PetriNetUnfolderBase]: 42/1632 cut-off events. [2023-11-26 11:44:20,670 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2023-11-26 11:44:20,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2143 conditions, 1632 events. 42/1632 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 7581 event pairs, 17 based on Foata normal form. 0/1582 useless extension candidates. Maximal degree in co-relation 2037. Up to 79 conditions per place. [2023-11-26 11:44:20,687 INFO L140 encePairwiseOnDemand]: 446/449 looper letters, 11 selfloop transitions, 3 changer transitions 0/376 dead transitions. [2023-11-26 11:44:20,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 376 transitions, 1095 flow [2023-11-26 11:44:20,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:20,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:20,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1258 transitions. [2023-11-26 11:44:20,690 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9339272457312546 [2023-11-26 11:44:20,691 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1258 transitions. [2023-11-26 11:44:20,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1258 transitions. [2023-11-26 11:44:20,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:20,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1258 transitions. [2023-11-26 11:44:20,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:20,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:20,696 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:20,697 INFO L175 Difference]: Start difference. First operand has 386 places, 376 transitions, 1066 flow. Second operand 3 states and 1258 transitions. [2023-11-26 11:44:20,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 376 transitions, 1095 flow [2023-11-26 11:44:20,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 376 transitions, 1088 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:44:20,710 INFO L231 Difference]: Finished difference. Result has 383 places, 375 transitions, 1063 flow [2023-11-26 11:44:20,711 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=1057, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1063, PETRI_PLACES=383, PETRI_TRANSITIONS=375} [2023-11-26 11:44:20,711 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, -23 predicate places. [2023-11-26 11:44:20,712 INFO L495 AbstractCegarLoop]: Abstraction has has 383 places, 375 transitions, 1063 flow [2023-11-26 11:44:20,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 416.6666666666667) internal successors, (1250), 3 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:20,712 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:20,713 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:20,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-26 11:44:20,713 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:44:20,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:20,714 INFO L85 PathProgramCache]: Analyzing trace with hash -769664554, now seen corresponding path program 1 times [2023-11-26 11:44:20,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:20,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573468289] [2023-11-26 11:44:20,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:20,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:20,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:20,859 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-26 11:44:20,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:20,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573468289] [2023-11-26 11:44:20,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573468289] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:20,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:20,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:20,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798244323] [2023-11-26 11:44:20,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:20,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:20,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:20,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:20,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:20,896 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 415 out of 449 [2023-11-26 11:44:20,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 375 transitions, 1063 flow. Second operand has 3 states, 3 states have (on average 417.0) internal successors, (1251), 3 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:20,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:20,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 415 of 449 [2023-11-26 11:44:20,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:21,423 INFO L124 PetriNetUnfolderBase]: 76/1810 cut-off events. [2023-11-26 11:44:21,423 INFO L125 PetriNetUnfolderBase]: For 171/174 co-relation queries the response was YES. [2023-11-26 11:44:21,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2402 conditions, 1810 events. 76/1810 cut-off events. For 171/174 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 11061 event pairs, 43 based on Foata normal form. 0/1737 useless extension candidates. Maximal degree in co-relation 2171. Up to 127 conditions per place. [2023-11-26 11:44:21,436 INFO L140 encePairwiseOnDemand]: 446/449 looper letters, 0 selfloop transitions, 0 changer transitions 375/375 dead transitions. [2023-11-26 11:44:21,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 384 places, 375 transitions, 1092 flow [2023-11-26 11:44:21,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:21,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:21,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1258 transitions. [2023-11-26 11:44:21,438 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9339272457312546 [2023-11-26 11:44:21,438 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1258 transitions. [2023-11-26 11:44:21,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1258 transitions. [2023-11-26 11:44:21,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:21,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1258 transitions. [2023-11-26 11:44:21,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:21,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:21,442 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:21,442 INFO L175 Difference]: Start difference. First operand has 383 places, 375 transitions, 1063 flow. Second operand 3 states and 1258 transitions. [2023-11-26 11:44:21,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 384 places, 375 transitions, 1092 flow [2023-11-26 11:44:21,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 375 transitions, 1086 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:21,452 INFO L231 Difference]: Finished difference. Result has 382 places, 0 transitions, 0 flow [2023-11-26 11:44:21,453 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=1055, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=374, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=382, PETRI_TRANSITIONS=0} [2023-11-26 11:44:21,454 INFO L281 CegarLoopForPetriNet]: 406 programPoint places, -24 predicate places. [2023-11-26 11:44:21,454 INFO L495 AbstractCegarLoop]: Abstraction has has 382 places, 0 transitions, 0 flow [2023-11-26 11:44:21,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 417.0) internal successors, (1251), 3 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:21,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (59 of 60 remaining) [2023-11-26 11:44:21,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (58 of 60 remaining) [2023-11-26 11:44:21,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (57 of 60 remaining) [2023-11-26 11:44:21,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (56 of 60 remaining) [2023-11-26 11:44:21,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (55 of 60 remaining) [2023-11-26 11:44:21,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (54 of 60 remaining) [2023-11-26 11:44:21,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (53 of 60 remaining) [2023-11-26 11:44:21,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (52 of 60 remaining) [2023-11-26 11:44:21,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (51 of 60 remaining) [2023-11-26 11:44:21,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (50 of 60 remaining) [2023-11-26 11:44:21,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (49 of 60 remaining) [2023-11-26 11:44:21,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (48 of 60 remaining) [2023-11-26 11:44:21,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (47 of 60 remaining) [2023-11-26 11:44:21,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (46 of 60 remaining) [2023-11-26 11:44:21,460 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (45 of 60 remaining) [2023-11-26 11:44:21,460 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (44 of 60 remaining) [2023-11-26 11:44:21,460 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (43 of 60 remaining) [2023-11-26 11:44:21,460 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (42 of 60 remaining) [2023-11-26 11:44:21,460 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (41 of 60 remaining) [2023-11-26 11:44:21,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (40 of 60 remaining) [2023-11-26 11:44:21,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (39 of 60 remaining) [2023-11-26 11:44:21,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (38 of 60 remaining) [2023-11-26 11:44:21,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 60 remaining) [2023-11-26 11:44:21,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 60 remaining) [2023-11-26 11:44:21,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 60 remaining) [2023-11-26 11:44:21,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (34 of 60 remaining) [2023-11-26 11:44:21,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (33 of 60 remaining) [2023-11-26 11:44:21,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 60 remaining) [2023-11-26 11:44:21,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (31 of 60 remaining) [2023-11-26 11:44:21,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (30 of 60 remaining) [2023-11-26 11:44:21,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (29 of 60 remaining) [2023-11-26 11:44:21,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (28 of 60 remaining) [2023-11-26 11:44:21,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (27 of 60 remaining) [2023-11-26 11:44:21,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (26 of 60 remaining) [2023-11-26 11:44:21,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (25 of 60 remaining) [2023-11-26 11:44:21,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (24 of 60 remaining) [2023-11-26 11:44:21,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 60 remaining) [2023-11-26 11:44:21,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 60 remaining) [2023-11-26 11:44:21,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 60 remaining) [2023-11-26 11:44:21,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (20 of 60 remaining) [2023-11-26 11:44:21,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 60 remaining) [2023-11-26 11:44:21,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (18 of 60 remaining) [2023-11-26 11:44:21,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (17 of 60 remaining) [2023-11-26 11:44:21,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (16 of 60 remaining) [2023-11-26 11:44:21,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (15 of 60 remaining) [2023-11-26 11:44:21,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (14 of 60 remaining) [2023-11-26 11:44:21,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (13 of 60 remaining) [2023-11-26 11:44:21,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (12 of 60 remaining) [2023-11-26 11:44:21,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (11 of 60 remaining) [2023-11-26 11:44:21,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 60 remaining) [2023-11-26 11:44:21,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 60 remaining) [2023-11-26 11:44:21,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 60 remaining) [2023-11-26 11:44:21,467 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (7 of 60 remaining) [2023-11-26 11:44:21,467 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (6 of 60 remaining) [2023-11-26 11:44:21,467 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (5 of 60 remaining) [2023-11-26 11:44:21,467 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (4 of 60 remaining) [2023-11-26 11:44:21,468 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (3 of 60 remaining) [2023-11-26 11:44:21,468 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (2 of 60 remaining) [2023-11-26 11:44:21,468 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (1 of 60 remaining) [2023-11-26 11:44:21,468 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (0 of 60 remaining) [2023-11-26 11:44:21,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-26 11:44:21,469 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:21,476 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 11:44:21,476 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:44:21,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:44:21 BasicIcfg [2023-11-26 11:44:21,481 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:44:21,482 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:44:21,482 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:44:21,482 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:44:21,483 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:43:48" (3/4) ... [2023-11-26 11:44:21,485 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:44:21,489 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-26 11:44:21,489 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-26 11:44:21,505 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2023-11-26 11:44:21,506 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-26 11:44:21,506 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 11:44:21,507 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:44:21,632 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:44:21,632 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:44:21,632 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:44:21,633 INFO L158 Benchmark]: Toolchain (without parser) took 34284.98ms. Allocated memory was 148.9MB in the beginning and 824.2MB in the end (delta: 675.3MB). Free memory was 120.5MB in the beginning and 302.6MB in the end (delta: -182.1MB). Peak memory consumption was 491.6MB. Max. memory is 16.1GB. [2023-11-26 11:44:21,634 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory was 94.0MB in the beginning and 93.9MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:44:21,634 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.79ms. Allocated memory is still 148.9MB. Free memory was 120.3MB in the beginning and 109.0MB in the end (delta: 11.3MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2023-11-26 11:44:21,635 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.34ms. Allocated memory is still 148.9MB. Free memory was 109.0MB in the beginning and 105.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:44:21,635 INFO L158 Benchmark]: Boogie Preprocessor took 57.57ms. Allocated memory is still 148.9MB. Free memory was 105.5MB in the beginning and 102.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:44:21,635 INFO L158 Benchmark]: RCFGBuilder took 936.98ms. Allocated memory is still 148.9MB. Free memory was 102.7MB in the beginning and 69.2MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-26 11:44:21,636 INFO L158 Benchmark]: TraceAbstraction took 32675.52ms. Allocated memory was 148.9MB in the beginning and 824.2MB in the end (delta: 675.3MB). Free memory was 68.5MB in the beginning and 309.9MB in the end (delta: -241.4MB). Peak memory consumption was 434.8MB. Max. memory is 16.1GB. [2023-11-26 11:44:21,636 INFO L158 Benchmark]: Witness Printer took 150.79ms. Allocated memory is still 824.2MB. Free memory was 309.9MB in the beginning and 302.6MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 11:44:21,638 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory was 94.0MB in the beginning and 93.9MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 375.79ms. Allocated memory is still 148.9MB. Free memory was 120.3MB in the beginning and 109.0MB in the end (delta: 11.3MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.34ms. Allocated memory is still 148.9MB. Free memory was 109.0MB in the beginning and 105.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.57ms. Allocated memory is still 148.9MB. Free memory was 105.5MB in the beginning and 102.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 936.98ms. Allocated memory is still 148.9MB. Free memory was 102.7MB in the beginning and 69.2MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 32675.52ms. Allocated memory was 148.9MB in the beginning and 824.2MB in the end (delta: 675.3MB). Free memory was 68.5MB in the beginning and 309.9MB in the end (delta: -241.4MB). Peak memory consumption was 434.8MB. Max. memory is 16.1GB. * Witness Printer took 150.79ms. Allocated memory is still 824.2MB. Free memory was 309.9MB in the beginning and 302.6MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: 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: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: 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: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: 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: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: 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 5 procedures, 624 locations, 60 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: 32.4s, OverallIterations: 28, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 18.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2912 SdHoareTripleChecker+Valid, 5.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1827 mSDsluCounter, 1123 SdHoareTripleChecker+Invalid, 4.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 951 mSDsCounter, 654 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5494 IncrementalHoareTripleChecker+Invalid, 6148 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 654 mSolverCounterUnsat, 172 mSDtfsCounter, 5494 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1047 GetRequests, 922 SyntacticMatches, 5 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1166occurred in iteration=17, InterpolantAutomatonStates: 134, 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: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 6210 NumberOfCodeBlocks, 6120 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 6534 ConstructedInterpolants, 0 QuantifiedInterpolants, 9126 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1129 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 33 InterpolantComputations, 26 PerfectInterpolantSequences, 4277/4472 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 36 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-26 11:44:21,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bceeb0-653a-498d-bdc8-6d164f5de25d/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