./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/barrier_2t.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_1b7e3876-6159-47dc-9513-ff43e558fcff/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7e3876-6159-47dc-9513-ff43e558fcff/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_1b7e3876-6159-47dc-9513-ff43e558fcff/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7e3876-6159-47dc-9513-ff43e558fcff/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/barrier_2t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7e3876-6159-47dc-9513-ff43e558fcff/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_1b7e3876-6159-47dc-9513-ff43e558fcff/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 f16bd48636db1837ea8e0ca595ad8610f40d584c5526c4d4feced86ef6fdf308 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:48:55,528 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:48:55,703 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7e3876-6159-47dc-9513-ff43e558fcff/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 11:48:55,713 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:48:55,714 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:48:55,740 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:48:55,741 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:48:55,741 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:48:55,742 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:48:55,743 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:48:55,744 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:48:55,745 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:48:55,745 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:48:55,746 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:48:55,747 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:48:55,747 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:48:55,748 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:48:55,749 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:48:55,749 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:48:55,750 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:48:55,750 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:48:55,751 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:48:55,752 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 11:48:55,752 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:48:55,753 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:48:55,753 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:48:55,754 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:48:55,754 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:48:55,755 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:48:55,755 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:48:55,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:48:55,757 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:48:55,757 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:48:55,758 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:48:55,758 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:48:55,758 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:48:55,759 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:48:55,759 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:48:55,759 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:48:55,759 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:48:55,760 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:48:55,760 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_1b7e3876-6159-47dc-9513-ff43e558fcff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7e3876-6159-47dc-9513-ff43e558fcff/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f16bd48636db1837ea8e0ca595ad8610f40d584c5526c4d4feced86ef6fdf308 [2023-11-26 11:48:56,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:48:56,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:48:56,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:48:56,085 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:48:56,086 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:48:56,087 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7e3876-6159-47dc-9513-ff43e558fcff/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/pthread-divine/barrier_2t.i [2023-11-26 11:48:59,319 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:48:59,699 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:48:59,700 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7e3876-6159-47dc-9513-ff43e558fcff/sv-benchmarks/c/pthread-divine/barrier_2t.i [2023-11-26 11:48:59,721 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7e3876-6159-47dc-9513-ff43e558fcff/bin/uautomizer-verify-VRDe98Ueme/data/64610e830/fbc8a7e3b03c46129436021d02a78fe8/FLAG5ce16e169 [2023-11-26 11:48:59,739 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7e3876-6159-47dc-9513-ff43e558fcff/bin/uautomizer-verify-VRDe98Ueme/data/64610e830/fbc8a7e3b03c46129436021d02a78fe8 [2023-11-26 11:48:59,742 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:48:59,744 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:48:59,746 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:48:59,746 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:48:59,753 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:48:59,757 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:48:59" (1/1) ... [2023-11-26 11:48:59,759 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42ab0cbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:59, skipping insertion in model container [2023-11-26 11:48:59,759 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:48:59" (1/1) ... [2023-11-26 11:48:59,854 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:49:00,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:49:00,439 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:49:00,564 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:49:00,630 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:49:00,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:00 WrapperNode [2023-11-26 11:49:00,631 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:49:00,633 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:49:00,633 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:49:00,633 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:49:00,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:00" (1/1) ... [2023-11-26 11:49:00,700 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:00" (1/1) ... [2023-11-26 11:49:00,794 INFO L138 Inliner]: procedures = 174, calls = 94, calls flagged for inlining = 19, calls inlined = 31, statements flattened = 1074 [2023-11-26 11:49:00,795 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:49:00,796 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:49:00,796 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:49:00,797 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:49:00,809 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:00" (1/1) ... [2023-11-26 11:49:00,809 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:00" (1/1) ... [2023-11-26 11:49:00,831 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:00" (1/1) ... [2023-11-26 11:49:00,831 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:00" (1/1) ... [2023-11-26 11:49:00,950 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:00" (1/1) ... [2023-11-26 11:49:00,988 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:00" (1/1) ... [2023-11-26 11:49:00,995 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:00" (1/1) ... [2023-11-26 11:49:01,018 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:00" (1/1) ... [2023-11-26 11:49:01,032 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:49:01,047 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:49:01,048 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:49:01,048 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:49:01,049 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:00" (1/1) ... [2023-11-26 11:49:01,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:49:01,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7e3876-6159-47dc-9513-ff43e558fcff/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:49:01,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7e3876-6159-47dc-9513-ff43e558fcff/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:49:01,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7e3876-6159-47dc-9513-ff43e558fcff/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:49:01,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 11:49:01,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 11:49:01,160 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 11:49:01,160 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2023-11-26 11:49:01,160 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2023-11-26 11:49:01,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:49:01,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-26 11:49:01,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:49:01,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-26 11:49:01,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:49:01,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 11:49:01,163 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 11:49:01,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:49:01,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:49:01,169 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 11:49:01,425 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:49:01,428 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:49:03,482 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:49:03,582 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:49:03,583 INFO L309 CfgBuilder]: Removed 20 assume(true) statements. [2023-11-26 11:49:03,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:49:03 BoogieIcfgContainer [2023-11-26 11:49:03,586 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:49:03,591 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:49:03,592 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:49:03,597 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:49:03,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:48:59" (1/3) ... [2023-11-26 11:49:03,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@345a7227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:49:03, skipping insertion in model container [2023-11-26 11:49:03,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:49:00" (2/3) ... [2023-11-26 11:49:03,601 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@345a7227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:49:03, skipping insertion in model container [2023-11-26 11:49:03,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:49:03" (3/3) ... [2023-11-26 11:49:03,605 INFO L112 eAbstractionObserver]: Analyzing ICFG barrier_2t.i [2023-11-26 11:49:03,616 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:49:03,628 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:49:03,628 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 98 error locations. [2023-11-26 11:49:03,629 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:49:03,930 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-26 11:49:04,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1134 places, 1224 transitions, 2455 flow [2023-11-26 11:49:05,562 INFO L124 PetriNetUnfolderBase]: 141/1807 cut-off events. [2023-11-26 11:49:05,562 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 11:49:05,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1812 conditions, 1807 events. 141/1807 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 7333 event pairs, 0 based on Foata normal form. 0/1518 useless extension candidates. Maximal degree in co-relation 1101. Up to 4 conditions per place. [2023-11-26 11:49:05,654 INFO L82 GeneralOperation]: Start removeDead. Operand has 1134 places, 1224 transitions, 2455 flow [2023-11-26 11:49:05,721 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1134 places, 1224 transitions, 2455 flow [2023-11-26 11:49:05,743 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:49:05,752 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;@34aaf23d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:49:05,753 INFO L358 AbstractCegarLoop]: Starting to check reachability of 143 error locations. [2023-11-26 11:49:05,765 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:49:05,765 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2023-11-26 11:49:05,766 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:49:05,766 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:49:05,767 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] [2023-11-26 11:49:05,767 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-26 11:49:05,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:05,776 INFO L85 PathProgramCache]: Analyzing trace with hash -2117681182, now seen corresponding path program 1 times [2023-11-26 11:49:05,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:05,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881082397] [2023-11-26 11:49:05,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:05,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:07,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:07,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:07,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881082397] [2023-11-26 11:49:07,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881082397] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:07,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:07,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:49:07,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615758013] [2023-11-26 11:49:07,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:07,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:49:07,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:07,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:49:07,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:49:10,397 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 880 out of 1224 [2023-11-26 11:49:10,416 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1134 places, 1224 transitions, 2455 flow. Second operand has 6 states, 6 states have (on average 881.5) internal successors, (5289), 6 states have internal predecessors, (5289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:10,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:49:10,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 880 of 1224 [2023-11-26 11:49:10,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:49:34,233 INFO L124 PetriNetUnfolderBase]: 17872/84673 cut-off events. [2023-11-26 11:49:34,234 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 11:49:34,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116765 conditions, 84673 events. 17872/84673 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 1039033 event pairs, 15609 based on Foata normal form. 8048/82435 useless extension candidates. Maximal degree in co-relation 115962. Up to 32082 conditions per place. [2023-11-26 11:49:34,668 INFO L140 encePairwiseOnDemand]: 1152/1224 looper letters, 272 selfloop transitions, 5 changer transitions 3/1111 dead transitions. [2023-11-26 11:49:34,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1092 places, 1111 transitions, 2783 flow [2023-11-26 11:49:34,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:49:34,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:49:34,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5624 transitions. [2023-11-26 11:49:34,707 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7657952069716776 [2023-11-26 11:49:34,708 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 5624 transitions. [2023-11-26 11:49:34,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 5624 transitions. [2023-11-26 11:49:34,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:49:34,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 5624 transitions. [2023-11-26 11:49:34,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 937.3333333333334) internal successors, (5624), 6 states have internal predecessors, (5624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:34,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1224.0) internal successors, (8568), 7 states have internal predecessors, (8568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:34,773 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1224.0) internal successors, (8568), 7 states have internal predecessors, (8568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:34,776 INFO L175 Difference]: Start difference. First operand has 1134 places, 1224 transitions, 2455 flow. Second operand 6 states and 5624 transitions. [2023-11-26 11:49:34,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1092 places, 1111 transitions, 2783 flow [2023-11-26 11:49:34,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1092 places, 1111 transitions, 2783 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:49:34,822 INFO L231 Difference]: Finished difference. Result has 1092 places, 1108 transitions, 2233 flow [2023-11-26 11:49:34,826 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1224, PETRI_DIFFERENCE_MINUEND_FLOW=2229, PETRI_DIFFERENCE_MINUEND_PLACES=1087, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2233, PETRI_PLACES=1092, PETRI_TRANSITIONS=1108} [2023-11-26 11:49:34,830 INFO L281 CegarLoopForPetriNet]: 1134 programPoint places, -42 predicate places. [2023-11-26 11:49:34,831 INFO L495 AbstractCegarLoop]: Abstraction has has 1092 places, 1108 transitions, 2233 flow [2023-11-26 11:49:34,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 881.5) internal successors, (5289), 6 states have internal predecessors, (5289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:34,835 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:49:34,836 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:49:34,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:49:34,836 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-26 11:49:34,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:34,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1901273083, now seen corresponding path program 1 times [2023-11-26 11:49:34,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:34,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553784916] [2023-11-26 11:49:34,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:34,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:34,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:34,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:34,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553784916] [2023-11-26 11:49:34,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553784916] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:34,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:34,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:49:34,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696401006] [2023-11-26 11:49:34,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:34,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:49:34,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:34,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:49:34,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:49:34,982 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1122 out of 1224 [2023-11-26 11:49:34,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1092 places, 1108 transitions, 2233 flow. Second operand has 3 states, 3 states have (on average 1123.3333333333333) internal successors, (3370), 3 states have internal predecessors, (3370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:34,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:49:34,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1122 of 1224 [2023-11-26 11:49:34,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:49:38,448 INFO L124 PetriNetUnfolderBase]: 555/9893 cut-off events. [2023-11-26 11:49:38,448 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 11:49:38,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10510 conditions, 9893 events. 555/9893 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 91074 event pairs, 210 based on Foata normal form. 1/8489 useless extension candidates. Maximal degree in co-relation 10426. Up to 600 conditions per place. [2023-11-26 11:49:38,601 INFO L140 encePairwiseOnDemand]: 1221/1224 looper letters, 35 selfloop transitions, 2 changer transitions 0/1109 dead transitions. [2023-11-26 11:49:38,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1091 places, 1109 transitions, 2309 flow [2023-11-26 11:49:38,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:49:38,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:49:38,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3404 transitions. [2023-11-26 11:49:38,612 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9270152505446623 [2023-11-26 11:49:38,612 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3404 transitions. [2023-11-26 11:49:38,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3404 transitions. [2023-11-26 11:49:38,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:49:38,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3404 transitions. [2023-11-26 11:49:38,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1134.6666666666667) internal successors, (3404), 3 states have internal predecessors, (3404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:38,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1224.0) internal successors, (4896), 4 states have internal predecessors, (4896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:38,643 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1224.0) internal successors, (4896), 4 states have internal predecessors, (4896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:38,643 INFO L175 Difference]: Start difference. First operand has 1092 places, 1108 transitions, 2233 flow. Second operand 3 states and 3404 transitions. [2023-11-26 11:49:38,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1091 places, 1109 transitions, 2309 flow [2023-11-26 11:49:38,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1086 places, 1109 transitions, 2299 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:49:38,670 INFO L231 Difference]: Finished difference. Result has 1087 places, 1109 transitions, 2235 flow [2023-11-26 11:49:38,672 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1224, PETRI_DIFFERENCE_MINUEND_FLOW=2223, PETRI_DIFFERENCE_MINUEND_PLACES=1084, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2235, PETRI_PLACES=1087, PETRI_TRANSITIONS=1109} [2023-11-26 11:49:38,673 INFO L281 CegarLoopForPetriNet]: 1134 programPoint places, -47 predicate places. [2023-11-26 11:49:38,674 INFO L495 AbstractCegarLoop]: Abstraction has has 1087 places, 1109 transitions, 2235 flow [2023-11-26 11:49:38,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1123.3333333333333) internal successors, (3370), 3 states have internal predecessors, (3370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:38,677 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:49:38,678 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] [2023-11-26 11:49:38,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:49:38,682 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-26 11:49:38,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:49:38,683 INFO L85 PathProgramCache]: Analyzing trace with hash 842780391, now seen corresponding path program 1 times [2023-11-26 11:49:38,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:49:38,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136796849] [2023-11-26 11:49:38,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:49:38,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:49:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:49:39,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:49:39,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:49:39,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136796849] [2023-11-26 11:49:39,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136796849] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:49:39,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:49:39,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:49:39,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338184833] [2023-11-26 11:49:39,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:49:39,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:49:39,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:49:39,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:49:39,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:49:41,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 880 out of 1224 [2023-11-26 11:49:41,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1087 places, 1109 transitions, 2235 flow. Second operand has 6 states, 6 states have (on average 881.5) internal successors, (5289), 6 states have internal predecessors, (5289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:49:41,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:49:41,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 880 of 1224 [2023-11-26 11:49:41,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand