./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/queue_ok_longer.i --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_9b099427-0ce9-4826-b9ec-544d2a7c51fb/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b099427-0ce9-4826-b9ec-544d2a7c51fb/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_9b099427-0ce9-4826-b9ec-544d2a7c51fb/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b099427-0ce9-4826-b9ec-544d2a7c51fb/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/queue_ok_longer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b099427-0ce9-4826-b9ec-544d2a7c51fb/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_9b099427-0ce9-4826-b9ec-544d2a7c51fb/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 f58af1aa15d4bec1241042c84c595fb9585ff7c461dd0b44f9fde0638838779a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:02:13,795 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:02:13,927 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b099427-0ce9-4826-b9ec-544d2a7c51fb/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 12:02:13,933 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:02:13,934 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:02:13,964 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:02:13,965 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:02:13,966 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:02:13,967 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:02:13,967 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:02:13,968 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:02:13,969 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:02:13,970 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:02:13,970 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:02:13,971 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:02:13,971 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:02:13,972 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:02:13,973 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:02:13,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:02:13,974 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:02:13,974 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:02:13,975 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:02:13,976 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 12:02:13,976 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:02:13,977 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:02:13,978 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:02:13,978 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:02:13,979 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:02:13,980 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:02:13,980 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:02:13,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:02:13,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:02:13,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:02:13,983 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:02:13,983 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:02:13,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:02:13,984 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:02:13,985 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:02:13,985 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:02:13,986 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:02:13,986 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:02:13,986 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_9b099427-0ce9-4826-b9ec-544d2a7c51fb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b099427-0ce9-4826-b9ec-544d2a7c51fb/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f58af1aa15d4bec1241042c84c595fb9585ff7c461dd0b44f9fde0638838779a [2023-11-26 12:02:14,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:02:14,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:02:14,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:02:14,311 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:02:14,312 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:02:14,313 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b099427-0ce9-4826-b9ec-544d2a7c51fb/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/pthread/queue_ok_longer.i [2023-11-26 12:02:17,656 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:02:18,023 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:02:18,023 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b099427-0ce9-4826-b9ec-544d2a7c51fb/sv-benchmarks/c/pthread/queue_ok_longer.i [2023-11-26 12:02:18,045 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b099427-0ce9-4826-b9ec-544d2a7c51fb/bin/uautomizer-verify-VRDe98Ueme/data/df6e831f4/8db40aa6f0a44893ab799a1a7732995f/FLAG73ba7b733 [2023-11-26 12:02:18,060 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b099427-0ce9-4826-b9ec-544d2a7c51fb/bin/uautomizer-verify-VRDe98Ueme/data/df6e831f4/8db40aa6f0a44893ab799a1a7732995f [2023-11-26 12:02:18,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:02:18,065 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:02:18,066 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:18,066 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:02:18,072 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:02:18,076 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:18" (1/1) ... [2023-11-26 12:02:18,077 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@441015da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:18, skipping insertion in model container [2023-11-26 12:02:18,078 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:18" (1/1) ... [2023-11-26 12:02:18,159 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:02:18,824 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:18,840 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:02:18,953 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:19,027 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:02:19,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:19 WrapperNode [2023-11-26 12:02:19,028 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:19,030 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:19,030 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:02:19,030 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:02:19,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:19" (1/1) ... [2023-11-26 12:02:19,085 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:19" (1/1) ... [2023-11-26 12:02:19,158 INFO L138 Inliner]: procedures = 275, calls = 61, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 399 [2023-11-26 12:02:19,158 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:19,159 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:02:19,159 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:02:19,159 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:02:19,175 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:19" (1/1) ... [2023-11-26 12:02:19,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:19" (1/1) ... [2023-11-26 12:02:19,186 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:19" (1/1) ... [2023-11-26 12:02:19,187 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:19" (1/1) ... [2023-11-26 12:02:19,219 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:19" (1/1) ... [2023-11-26 12:02:19,224 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:19" (1/1) ... [2023-11-26 12:02:19,228 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:19" (1/1) ... [2023-11-26 12:02:19,232 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:19" (1/1) ... [2023-11-26 12:02:19,238 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:02:19,240 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:02:19,240 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:02:19,240 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:02:19,241 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:19" (1/1) ... [2023-11-26 12:02:19,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:02:19,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b099427-0ce9-4826-b9ec-544d2a7c51fb/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:19,277 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b099427-0ce9-4826-b9ec-544d2a7c51fb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:02:19,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b099427-0ce9-4826-b9ec-544d2a7c51fb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:02:19,341 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-11-26 12:02:19,341 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-11-26 12:02:19,341 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-11-26 12:02:19,341 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-11-26 12:02:19,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:02:19,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:02:19,342 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 12:02:19,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 12:02:19,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 12:02:19,343 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 12:02:19,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:02:19,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 12:02:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:02:19,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:02:19,347 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 12:02:19,592 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:02:19,595 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:02:20,560 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:02:20,605 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:02:20,605 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 12:02:20,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:20 BoogieIcfgContainer [2023-11-26 12:02:20,607 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:02:20,611 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:02:20,612 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:02:20,616 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:02:20,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:02:18" (1/3) ... [2023-11-26 12:02:20,617 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4785d3e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:20, skipping insertion in model container [2023-11-26 12:02:20,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:19" (2/3) ... [2023-11-26 12:02:20,619 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4785d3e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:20, skipping insertion in model container [2023-11-26 12:02:20,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:20" (3/3) ... [2023-11-26 12:02:20,622 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_ok_longer.i [2023-11-26 12:02:20,632 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 12:02:20,643 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:02:20,644 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2023-11-26 12:02:20,645 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 12:02:20,865 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-26 12:02:20,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 448 places, 456 transitions, 926 flow [2023-11-26 12:02:21,249 INFO L124 PetriNetUnfolderBase]: 15/454 cut-off events. [2023-11-26 12:02:21,249 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-26 12:02:21,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 463 conditions, 454 events. 15/454 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 832 event pairs, 0 based on Foata normal form. 0/404 useless extension candidates. Maximal degree in co-relation 323. Up to 3 conditions per place. [2023-11-26 12:02:21,265 INFO L82 GeneralOperation]: Start removeDead. Operand has 448 places, 456 transitions, 926 flow [2023-11-26 12:02:21,291 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 436 places, 444 transitions, 897 flow [2023-11-26 12:02:21,311 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:02:21,322 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;@3c1045e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:02:21,322 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2023-11-26 12:02:21,332 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 12:02:21,332 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2023-11-26 12:02:21,332 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:02:21,332 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:21,333 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] [2023-11-26 12:02:21,335 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 12:02:21,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:21,342 INFO L85 PathProgramCache]: Analyzing trace with hash -796067664, now seen corresponding path program 1 times [2023-11-26 12:02:21,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:21,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369294930] [2023-11-26 12:02:21,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:21,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:21,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:21,696 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 12:02:21,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:21,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369294930] [2023-11-26 12:02:21,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369294930] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:21,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:21,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:21,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696905196] [2023-11-26 12:02:21,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:21,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:02:21,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:21,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:02:21,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:02:21,786 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 456 [2023-11-26 12:02:21,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 444 transitions, 897 flow. Second operand has 3 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:21,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:21,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 456 [2023-11-26 12:02:21,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:22,162 INFO L124 PetriNetUnfolderBase]: 40/985 cut-off events. [2023-11-26 12:02:22,162 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-11-26 12:02:22,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1058 conditions, 985 events. 40/985 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4732 event pairs, 19 based on Foata normal form. 13/885 useless extension candidates. Maximal degree in co-relation 890. Up to 52 conditions per place. [2023-11-26 12:02:22,178 INFO L140 encePairwiseOnDemand]: 448/456 looper letters, 13 selfloop transitions, 2 changer transitions 0/427 dead transitions. [2023-11-26 12:02:22,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 427 transitions, 893 flow [2023-11-26 12:02:22,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:02:22,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:02:22,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1308 transitions. [2023-11-26 12:02:22,206 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.956140350877193 [2023-11-26 12:02:22,207 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1308 transitions. [2023-11-26 12:02:22,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1308 transitions. [2023-11-26 12:02:22,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:22,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1308 transitions. [2023-11-26 12:02:22,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 436.0) internal successors, (1308), 3 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:22,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:22,242 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:22,245 INFO L175 Difference]: Start difference. First operand has 436 places, 444 transitions, 897 flow. Second operand 3 states and 1308 transitions. [2023-11-26 12:02:22,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 427 transitions, 893 flow [2023-11-26 12:02:22,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 427 transitions, 888 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-26 12:02:22,272 INFO L231 Difference]: Finished difference. Result has 424 places, 427 transitions, 862 flow [2023-11-26 12:02:22,276 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=862, PETRI_PLACES=424, PETRI_TRANSITIONS=427} [2023-11-26 12:02:22,282 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -12 predicate places. [2023-11-26 12:02:22,283 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 427 transitions, 862 flow [2023-11-26 12:02:22,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:22,284 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:22,285 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] [2023-11-26 12:02:22,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:02:22,285 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 12:02:22,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:22,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1013186647, now seen corresponding path program 1 times [2023-11-26 12:02:22,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:22,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650661568] [2023-11-26 12:02:22,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:22,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:22,413 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 12:02:22,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:22,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650661568] [2023-11-26 12:02:22,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650661568] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:22,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:22,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:22,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768401396] [2023-11-26 12:02:22,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:22,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:02:22,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:22,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:02:22,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:02:22,451 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 456 [2023-11-26 12:02:22,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 427 transitions, 862 flow. Second operand has 3 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:22,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:22,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 456 [2023-11-26 12:02:22,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:22,830 INFO L124 PetriNetUnfolderBase]: 43/1121 cut-off events. [2023-11-26 12:02:22,830 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-26 12:02:22,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1188 conditions, 1121 events. 43/1121 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5915 event pairs, 19 based on Foata normal form. 0/997 useless extension candidates. Maximal degree in co-relation 1152. Up to 52 conditions per place. [2023-11-26 12:02:22,842 INFO L140 encePairwiseOnDemand]: 453/456 looper letters, 13 selfloop transitions, 2 changer transitions 0/426 dead transitions. [2023-11-26 12:02:22,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 426 transitions, 890 flow [2023-11-26 12:02:22,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:02:22,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:02:22,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1303 transitions. [2023-11-26 12:02:22,847 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.952485380116959 [2023-11-26 12:02:22,848 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1303 transitions. [2023-11-26 12:02:22,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1303 transitions. [2023-11-26 12:02:22,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:22,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1303 transitions. [2023-11-26 12:02:22,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 434.3333333333333) internal successors, (1303), 3 states have internal predecessors, (1303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:22,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:22,861 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:22,861 INFO L175 Difference]: Start difference. First operand has 424 places, 427 transitions, 862 flow. Second operand 3 states and 1303 transitions. [2023-11-26 12:02:22,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 426 transitions, 890 flow [2023-11-26 12:02:22,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 426 transitions, 886 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:02:22,874 INFO L231 Difference]: Finished difference. Result has 423 places, 426 transitions, 860 flow [2023-11-26 12:02:22,875 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=860, PETRI_PLACES=423, PETRI_TRANSITIONS=426} [2023-11-26 12:02:22,876 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -13 predicate places. [2023-11-26 12:02:22,876 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 426 transitions, 860 flow [2023-11-26 12:02:22,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:22,878 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:22,878 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] [2023-11-26 12:02:22,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:02:22,879 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 12:02:22,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:22,880 INFO L85 PathProgramCache]: Analyzing trace with hash -439365894, now seen corresponding path program 1 times [2023-11-26 12:02:22,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:22,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157077271] [2023-11-26 12:02:22,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:22,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:23,483 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 12:02:23,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:23,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157077271] [2023-11-26 12:02:23,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157077271] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:23,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:23,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:02:23,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396415997] [2023-11-26 12:02:23,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:23,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:02:23,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:23,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:02:23,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:02:24,268 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 456 [2023-11-26 12:02:24,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 426 transitions, 860 flow. Second operand has 6 states, 6 states have (on average 333.3333333333333) internal successors, (2000), 6 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:24,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:24,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 456 [2023-11-26 12:02:24,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:35,623 INFO L124 PetriNetUnfolderBase]: 18045/52322 cut-off events. [2023-11-26 12:02:35,624 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2023-11-26 12:02:35,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79475 conditions, 52322 events. 18045/52322 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 573435 event pairs, 16336 based on Foata normal form. 0/47620 useless extension candidates. Maximal degree in co-relation 79435. Up to 27065 conditions per place. [2023-11-26 12:02:36,067 INFO L140 encePairwiseOnDemand]: 450/456 looper letters, 108 selfloop transitions, 5 changer transitions 0/425 dead transitions. [2023-11-26 12:02:36,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 425 transitions, 1084 flow [2023-11-26 12:02:36,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:02:36,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 12:02:36,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2106 transitions. [2023-11-26 12:02:36,075 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7697368421052632 [2023-11-26 12:02:36,075 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2106 transitions. [2023-11-26 12:02:36,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2106 transitions. [2023-11-26 12:02:36,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:36,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2106 transitions. [2023-11-26 12:02:36,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 351.0) internal successors, (2106), 6 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:36,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:36,096 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:36,096 INFO L175 Difference]: Start difference. First operand has 423 places, 426 transitions, 860 flow. Second operand 6 states and 2106 transitions. [2023-11-26 12:02:36,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 425 transitions, 1084 flow [2023-11-26 12:02:36,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 425 transitions, 1080 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:02:36,108 INFO L231 Difference]: Finished difference. Result has 425 places, 425 transitions, 864 flow [2023-11-26 12:02:36,109 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=864, PETRI_PLACES=425, PETRI_TRANSITIONS=425} [2023-11-26 12:02:36,111 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -11 predicate places. [2023-11-26 12:02:36,111 INFO L495 AbstractCegarLoop]: Abstraction has has 425 places, 425 transitions, 864 flow [2023-11-26 12:02:36,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 333.3333333333333) internal successors, (2000), 6 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:36,114 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:36,114 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] [2023-11-26 12:02:36,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:02:36,115 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 12:02:36,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:36,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1140905659, now seen corresponding path program 1 times [2023-11-26 12:02:36,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:36,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744500711] [2023-11-26 12:02:36,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:36,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:36,638 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 12:02:36,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:36,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744500711] [2023-11-26 12:02:36,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744500711] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:36,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:36,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:02:36,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505010098] [2023-11-26 12:02:36,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:36,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:02:36,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:36,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:02:36,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:02:37,565 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 456 [2023-11-26 12:02:37,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 425 transitions, 864 flow. Second operand has 6 states, 6 states have (on average 333.3333333333333) internal successors, (2000), 6 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:37,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:37,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 456 [2023-11-26 12:02:37,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:47,446 INFO L124 PetriNetUnfolderBase]: 18045/52321 cut-off events. [2023-11-26 12:02:47,446 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2023-11-26 12:02:47,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79477 conditions, 52321 events. 18045/52321 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 573314 event pairs, 16336 based on Foata normal form. 0/47620 useless extension candidates. Maximal degree in co-relation 79421. Up to 27065 conditions per place. [2023-11-26 12:02:47,823 INFO L140 encePairwiseOnDemand]: 450/456 looper letters, 108 selfloop transitions, 5 changer transitions 0/424 dead transitions. [2023-11-26 12:02:47,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 424 transitions, 1088 flow [2023-11-26 12:02:47,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:02:47,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 12:02:47,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2106 transitions. [2023-11-26 12:02:47,831 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7697368421052632 [2023-11-26 12:02:47,832 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2106 transitions. [2023-11-26 12:02:47,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2106 transitions. [2023-11-26 12:02:47,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:47,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2106 transitions. [2023-11-26 12:02:47,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 351.0) internal successors, (2106), 6 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:47,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:47,853 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:47,853 INFO L175 Difference]: Start difference. First operand has 425 places, 425 transitions, 864 flow. Second operand 6 states and 2106 transitions. [2023-11-26 12:02:47,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 424 transitions, 1088 flow [2023-11-26 12:02:47,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 424 transitions, 1078 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 12:02:47,864 INFO L231 Difference]: Finished difference. Result has 424 places, 424 transitions, 862 flow [2023-11-26 12:02:47,865 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=852, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=862, PETRI_PLACES=424, PETRI_TRANSITIONS=424} [2023-11-26 12:02:47,868 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -12 predicate places. [2023-11-26 12:02:47,869 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 424 transitions, 862 flow [2023-11-26 12:02:47,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 333.3333333333333) internal successors, (2000), 6 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:47,871 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:47,872 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] [2023-11-26 12:02:47,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 12:02:47,872 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 12:02:47,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:47,873 INFO L85 PathProgramCache]: Analyzing trace with hash -209609778, now seen corresponding path program 1 times [2023-11-26 12:02:47,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:47,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139933680] [2023-11-26 12:02:47,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:47,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:48,608 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 12:02:48,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:48,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139933680] [2023-11-26 12:02:48,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139933680] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:48,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:48,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:02:48,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884236750] [2023-11-26 12:02:48,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:48,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:02:48,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:48,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:02:48,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:02:49,387 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 456 [2023-11-26 12:02:49,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 424 transitions, 862 flow. Second operand has 6 states, 6 states have (on average 333.3333333333333) internal successors, (2000), 6 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:49,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:49,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 456 [2023-11-26 12:02:49,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:59,040 INFO L124 PetriNetUnfolderBase]: 18045/52320 cut-off events. [2023-11-26 12:02:59,041 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2023-11-26 12:02:59,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79476 conditions, 52320 events. 18045/52320 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 573328 event pairs, 16336 based on Foata normal form. 0/47620 useless extension candidates. Maximal degree in co-relation 79412. Up to 27065 conditions per place. [2023-11-26 12:02:59,418 INFO L140 encePairwiseOnDemand]: 450/456 looper letters, 108 selfloop transitions, 5 changer transitions 0/423 dead transitions. [2023-11-26 12:02:59,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 423 transitions, 1086 flow [2023-11-26 12:02:59,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:02:59,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 12:02:59,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2106 transitions. [2023-11-26 12:02:59,426 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7697368421052632 [2023-11-26 12:02:59,426 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2106 transitions. [2023-11-26 12:02:59,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2106 transitions. [2023-11-26 12:02:59,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:59,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2106 transitions. [2023-11-26 12:02:59,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 351.0) internal successors, (2106), 6 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:59,440 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:59,442 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:59,442 INFO L175 Difference]: Start difference. First operand has 424 places, 424 transitions, 862 flow. Second operand 6 states and 2106 transitions. [2023-11-26 12:02:59,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 423 transitions, 1086 flow [2023-11-26 12:02:59,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 423 transitions, 1076 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 12:02:59,453 INFO L231 Difference]: Finished difference. Result has 423 places, 423 transitions, 860 flow [2023-11-26 12:02:59,454 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=850, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=860, PETRI_PLACES=423, PETRI_TRANSITIONS=423} [2023-11-26 12:02:59,455 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -13 predicate places. [2023-11-26 12:02:59,455 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 423 transitions, 860 flow [2023-11-26 12:02:59,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 333.3333333333333) internal successors, (2000), 6 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:59,457 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:59,457 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] [2023-11-26 12:02:59,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 12:02:59,457 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 12:02:59,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:59,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1452068456, now seen corresponding path program 1 times [2023-11-26 12:02:59,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:59,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509126859] [2023-11-26 12:02:59,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:59,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:00,151 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 12:03:00,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:00,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509126859] [2023-11-26 12:03:00,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509126859] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:00,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:00,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:03:00,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577812199] [2023-11-26 12:03:00,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:00,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:03:00,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:00,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:03:00,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:03:01,377 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 456 [2023-11-26 12:03:01,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 423 transitions, 860 flow. Second operand has 6 states, 6 states have (on average 389.1666666666667) internal successors, (2335), 6 states have internal predecessors, (2335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:01,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:01,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 456 [2023-11-26 12:03:01,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:02,368 INFO L124 PetriNetUnfolderBase]: 502/4952 cut-off events. [2023-11-26 12:03:02,368 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-26 12:03:02,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5822 conditions, 4952 events. 502/4952 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 40178 event pairs, 344 based on Foata normal form. 0/4365 useless extension candidates. Maximal degree in co-relation 5740. Up to 811 conditions per place. [2023-11-26 12:03:02,404 INFO L140 encePairwiseOnDemand]: 450/456 looper letters, 54 selfloop transitions, 5 changer transitions 0/422 dead transitions. [2023-11-26 12:03:02,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 422 transitions, 976 flow [2023-11-26 12:03:02,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:03:02,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 12:03:02,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2376 transitions. [2023-11-26 12:03:02,416 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.868421052631579 [2023-11-26 12:03:02,417 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2376 transitions. [2023-11-26 12:03:02,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2376 transitions. [2023-11-26 12:03:02,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:02,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2376 transitions. [2023-11-26 12:03:02,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 396.0) internal successors, (2376), 6 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:02,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:02,441 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:02,441 INFO L175 Difference]: Start difference. First operand has 423 places, 423 transitions, 860 flow. Second operand 6 states and 2376 transitions. [2023-11-26 12:03:02,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 422 transitions, 976 flow [2023-11-26 12:03:02,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 422 transitions, 966 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 12:03:02,454 INFO L231 Difference]: Finished difference. Result has 422 places, 422 transitions, 858 flow [2023-11-26 12:03:02,455 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=858, PETRI_PLACES=422, PETRI_TRANSITIONS=422} [2023-11-26 12:03:02,459 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -14 predicate places. [2023-11-26 12:03:02,459 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 422 transitions, 858 flow [2023-11-26 12:03:02,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 389.1666666666667) internal successors, (2335), 6 states have internal predecessors, (2335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:02,478 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:02,479 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] [2023-11-26 12:03:02,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 12:03:02,479 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 12:03:02,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:02,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1867753033, now seen corresponding path program 1 times [2023-11-26 12:03:02,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:02,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251015663] [2023-11-26 12:03:02,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:02,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:03,211 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 12:03:03,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:03,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251015663] [2023-11-26 12:03:03,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251015663] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:03,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:03,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:03:03,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844299764] [2023-11-26 12:03:03,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:03,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:03:03,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:03,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:03:03,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:03:04,551 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 456 [2023-11-26 12:03:04,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 422 transitions, 858 flow. Second operand has 6 states, 6 states have (on average 389.1666666666667) internal successors, (2335), 6 states have internal predecessors, (2335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:04,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:04,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 456 [2023-11-26 12:03:04,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:05,431 INFO L124 PetriNetUnfolderBase]: 502/4951 cut-off events. [2023-11-26 12:03:05,431 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-26 12:03:05,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5821 conditions, 4951 events. 502/4951 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 40187 event pairs, 344 based on Foata normal form. 0/4365 useless extension candidates. Maximal degree in co-relation 5702. Up to 811 conditions per place. [2023-11-26 12:03:05,471 INFO L140 encePairwiseOnDemand]: 450/456 looper letters, 54 selfloop transitions, 5 changer transitions 0/421 dead transitions. [2023-11-26 12:03:05,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 421 transitions, 974 flow [2023-11-26 12:03:05,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:03:05,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 12:03:05,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2376 transitions. [2023-11-26 12:03:05,481 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.868421052631579 [2023-11-26 12:03:05,481 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2376 transitions. [2023-11-26 12:03:05,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2376 transitions. [2023-11-26 12:03:05,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:05,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2376 transitions. [2023-11-26 12:03:05,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 396.0) internal successors, (2376), 6 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:05,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:05,498 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 456.0) internal successors, (3192), 7 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:05,499 INFO L175 Difference]: Start difference. First operand has 422 places, 422 transitions, 858 flow. Second operand 6 states and 2376 transitions. [2023-11-26 12:03:05,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 421 transitions, 974 flow [2023-11-26 12:03:05,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 421 transitions, 964 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 12:03:05,509 INFO L231 Difference]: Finished difference. Result has 421 places, 421 transitions, 856 flow [2023-11-26 12:03:05,510 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=856, PETRI_PLACES=421, PETRI_TRANSITIONS=421} [2023-11-26 12:03:05,511 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -15 predicate places. [2023-11-26 12:03:05,512 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 421 transitions, 856 flow [2023-11-26 12:03:05,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 389.1666666666667) internal successors, (2335), 6 states have internal predecessors, (2335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:05,513 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:05,513 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:05,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 12:03:05,513 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 12:03:05,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:05,514 INFO L85 PathProgramCache]: Analyzing trace with hash -447143693, now seen corresponding path program 1 times [2023-11-26 12:03:05,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:05,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793317586] [2023-11-26 12:03:05,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:05,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:05,583 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 12:03:05,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:05,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793317586] [2023-11-26 12:03:05,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793317586] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:05,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:05,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:03:05,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394827612] [2023-11-26 12:03:05,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:05,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:03:05,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:05,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:03:05,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:03:05,602 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 433 out of 456 [2023-11-26 12:03:05,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 421 transitions, 856 flow. Second operand has 3 states, 3 states have (on average 434.6666666666667) internal successors, (1304), 3 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:05,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:05,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 433 of 456 [2023-11-26 12:03:05,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:05,808 INFO L124 PetriNetUnfolderBase]: 53/1061 cut-off events. [2023-11-26 12:03:05,809 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-26 12:03:05,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1171 conditions, 1061 events. 53/1061 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 5511 event pairs, 14 based on Foata normal form. 0/949 useless extension candidates. Maximal degree in co-relation 1071. Up to 56 conditions per place. [2023-11-26 12:03:05,820 INFO L140 encePairwiseOnDemand]: 451/456 looper letters, 17 selfloop transitions, 4 changer transitions 0/429 dead transitions. [2023-11-26 12:03:05,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 429 transitions, 917 flow [2023-11-26 12:03:05,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:03:05,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:03:05,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1321 transitions. [2023-11-26 12:03:05,826 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9656432748538012 [2023-11-26 12:03:05,826 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1321 transitions. [2023-11-26 12:03:05,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1321 transitions. [2023-11-26 12:03:05,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:05,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1321 transitions. [2023-11-26 12:03:05,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 440.3333333333333) internal successors, (1321), 3 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:05,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:05,837 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 456.0) internal successors, (1824), 4 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:05,837 INFO L175 Difference]: Start difference. First operand has 421 places, 421 transitions, 856 flow. Second operand 3 states and 1321 transitions. [2023-11-26 12:03:05,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 429 transitions, 917 flow [2023-11-26 12:03:05,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 429 transitions, 907 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 12:03:05,856 INFO L231 Difference]: Finished difference. Result has 420 places, 424 transitions, 876 flow [2023-11-26 12:03:05,857 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=456, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=876, PETRI_PLACES=420, PETRI_TRANSITIONS=424} [2023-11-26 12:03:05,861 INFO L281 CegarLoopForPetriNet]: 436 programPoint places, -16 predicate places. [2023-11-26 12:03:05,861 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 424 transitions, 876 flow [2023-11-26 12:03:05,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 434.6666666666667) internal successors, (1304), 3 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:05,862 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:05,863 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 12:03:05,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 12:03:05,863 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 12:03:05,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:05,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1957841084, now seen corresponding path program 1 times [2023-11-26 12:03:05,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:05,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772276228] [2023-11-26 12:03:05,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:05,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:05,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:05,938 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 12:03:05,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:05,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772276228] [2023-11-26 12:03:05,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772276228] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:05,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:05,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:03:05,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446147308] [2023-11-26 12:03:05,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:05,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:03:05,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:05,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:03:05,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:03:05,960 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 433 out of 456 [2023-11-26 12:03:05,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 424 transitions, 876 flow. Second operand has 3 states, 3 states have (on average 435.0) internal successors, (1305), 3 states have internal predecessors, (1305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:05,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:05,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 433 of 456 [2023-11-26 12:03:05,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand