./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-index.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff 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_88d966a5-77ed-4aeb-9a93-4e7879a0b7c2/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d966a5-77ed-4aeb-9a93-4e7879a0b7c2/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d966a5-77ed-4aeb-9a93-4e7879a0b7c2/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d966a5-77ed-4aeb-9a93-4e7879a0b7c2/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-index.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d966a5-77ed-4aeb-9a93-4e7879a0b7c2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d966a5-77ed-4aeb-9a93-4e7879a0b7c2/bin/uautomizer-verify-uCwYo4JHxu --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 04b5785f32baf312774bbdd81055e04eea16b74acd932ddd06ae0cc7f49160c1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:00:19,606 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:00:19,701 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d966a5-77ed-4aeb-9a93-4e7879a0b7c2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 08:00:19,712 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:00:19,713 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:00:19,760 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:00:19,761 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:00:19,761 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:00:19,763 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:00:19,768 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:00:19,769 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:00:19,769 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:00:19,770 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:00:19,772 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:00:19,773 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:00:19,773 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:00:19,774 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:00:19,774 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:00:19,775 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:00:19,775 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:00:19,776 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:00:19,776 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:00:19,777 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 08:00:19,778 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:00:19,778 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:00:19,779 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:00:19,779 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:00:19,780 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:00:19,781 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:00:19,781 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:00:19,783 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:00:19,783 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:00:19,784 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:00:19,784 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:00:19,784 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:00:19,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:00:19,785 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:00:19,785 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:00:19,786 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:00:19,786 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:00:19,786 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:00:19,787 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_88d966a5-77ed-4aeb-9a93-4e7879a0b7c2/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d966a5-77ed-4aeb-9a93-4e7879a0b7c2/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04b5785f32baf312774bbdd81055e04eea16b74acd932ddd06ae0cc7f49160c1 [2023-11-19 08:00:20,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:00:20,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:00:20,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:00:20,221 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:00:20,221 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:00:20,223 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d966a5-77ed-4aeb-9a93-4e7879a0b7c2/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-index.i [2023-11-19 08:00:23,417 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:00:23,730 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:00:23,731 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d966a5-77ed-4aeb-9a93-4e7879a0b7c2/sv-benchmarks/c/pthread-race-challenges/per-thread-array-index.i [2023-11-19 08:00:23,755 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d966a5-77ed-4aeb-9a93-4e7879a0b7c2/bin/uautomizer-verify-uCwYo4JHxu/data/ce9c2dac2/c6ca590223194e1fad9f09feebf859fb/FLAG1e9be54ca [2023-11-19 08:00:23,781 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d966a5-77ed-4aeb-9a93-4e7879a0b7c2/bin/uautomizer-verify-uCwYo4JHxu/data/ce9c2dac2/c6ca590223194e1fad9f09feebf859fb [2023-11-19 08:00:23,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:00:23,792 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:00:23,797 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:23,797 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:00:23,803 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:00:23,804 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:23" (1/1) ... [2023-11-19 08:00:23,805 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29993030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:23, skipping insertion in model container [2023-11-19 08:00:23,805 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:23" (1/1) ... [2023-11-19 08:00:23,883 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:00:24,166 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 08:00:24,486 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:24,496 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:00:24,512 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 08:00:24,551 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:24,633 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:00:24,641 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:00:24,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:24 WrapperNode [2023-11-19 08:00:24,642 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:24,644 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:00:24,644 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:00:24,644 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:00:24,652 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:24" (1/1) ... [2023-11-19 08:00:24,690 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:24" (1/1) ... [2023-11-19 08:00:24,736 INFO L138 Inliner]: procedures = 266, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 87 [2023-11-19 08:00:24,737 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:00:24,737 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:00:24,738 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:00:24,738 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:00:24,749 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:24" (1/1) ... [2023-11-19 08:00:24,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:24" (1/1) ... [2023-11-19 08:00:24,769 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:24" (1/1) ... [2023-11-19 08:00:24,770 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:24" (1/1) ... [2023-11-19 08:00:24,780 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:24" (1/1) ... [2023-11-19 08:00:24,784 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:24" (1/1) ... [2023-11-19 08:00:24,786 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:24" (1/1) ... [2023-11-19 08:00:24,788 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:24" (1/1) ... [2023-11-19 08:00:24,792 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:00:24,793 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:00:24,793 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:00:24,793 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:00:24,794 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:24" (1/1) ... [2023-11-19 08:00:24,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:00:24,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d966a5-77ed-4aeb-9a93-4e7879a0b7c2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:24,825 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d966a5-77ed-4aeb-9a93-4e7879a0b7c2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:00:24,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d966a5-77ed-4aeb-9a93-4e7879a0b7c2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:00:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:00:24,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 08:00:24,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:00:24,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 08:00:24,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 08:00:24,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:00:24,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 08:00:24,884 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-19 08:00:24,885 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-19 08:00:24,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:00:24,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:00:24,889 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 08:00:25,072 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:00:25,074 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:00:25,372 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:00:25,382 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:00:25,392 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 08:00:25,397 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:25 BoogieIcfgContainer [2023-11-19 08:00:25,413 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:00:25,416 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:00:25,417 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:00:25,420 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:00:25,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:00:23" (1/3) ... [2023-11-19 08:00:25,422 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ec3e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:25, skipping insertion in model container [2023-11-19 08:00:25,422 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:24" (2/3) ... [2023-11-19 08:00:25,422 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ec3e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:25, skipping insertion in model container [2023-11-19 08:00:25,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:25" (3/3) ... [2023-11-19 08:00:25,424 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-array-index.i [2023-11-19 08:00:25,438 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 08:00:25,448 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:00:25,448 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-19 08:00:25,449 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 08:00:25,550 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 08:00:25,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 115 transitions, 237 flow [2023-11-19 08:00:25,701 INFO L124 PetriNetUnfolderBase]: 6/167 cut-off events. [2023-11-19 08:00:25,702 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 08:00:25,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 167 events. 6/167 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 351 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 82. Up to 4 conditions per place. [2023-11-19 08:00:25,718 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 115 transitions, 237 flow [2023-11-19 08:00:25,722 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 115 transitions, 237 flow [2023-11-19 08:00:25,726 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:00:25,736 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 115 transitions, 237 flow [2023-11-19 08:00:25,738 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 115 transitions, 237 flow [2023-11-19 08:00:25,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 115 transitions, 237 flow [2023-11-19 08:00:25,799 INFO L124 PetriNetUnfolderBase]: 6/167 cut-off events. [2023-11-19 08:00:25,800 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 08:00:25,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 167 events. 6/167 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 351 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 82. Up to 4 conditions per place. [2023-11-19 08:00:25,804 INFO L119 LiptonReduction]: Number of co-enabled transitions 2242 [2023-11-19 08:00:28,212 INFO L134 LiptonReduction]: Checked pairs total: 10692 [2023-11-19 08:00:28,212 INFO L136 LiptonReduction]: Total number of compositions: 74 [2023-11-19 08:00:28,245 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:00:28,253 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;@624e0e0f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:00:28,254 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-19 08:00:28,255 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:00:28,255 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 08:00:28,256 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:00:28,256 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:28,256 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 08:00:28,257 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-19 08:00:28,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:28,263 INFO L85 PathProgramCache]: Analyzing trace with hash 378, now seen corresponding path program 1 times [2023-11-19 08:00:28,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:28,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419230975] [2023-11-19 08:00:28,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:28,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:28,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:28,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:28,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:28,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419230975] [2023-11-19 08:00:28,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419230975] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:28,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:28,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 08:00:28,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257113106] [2023-11-19 08:00:28,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:28,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:00:28,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:28,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:00:28,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:00:28,471 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 189 [2023-11-19 08:00:28,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 50 transitions, 107 flow. Second operand has 2 states, 2 states have (on average 110.5) internal successors, (221), 2 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:28,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:28,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 189 [2023-11-19 08:00:28,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:28,563 INFO L124 PetriNetUnfolderBase]: 36/208 cut-off events. [2023-11-19 08:00:28,563 INFO L125 PetriNetUnfolderBase]: For 4/8 co-relation queries the response was YES. [2023-11-19 08:00:28,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 208 events. 36/208 cut-off events. For 4/8 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 987 event pairs, 35 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 251. Up to 93 conditions per place. [2023-11-19 08:00:28,566 INFO L140 encePairwiseOnDemand]: 188/189 looper letters, 16 selfloop transitions, 0 changer transitions 0/49 dead transitions. [2023-11-19 08:00:28,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 49 transitions, 137 flow [2023-11-19 08:00:28,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:00:28,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 08:00:28,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 237 transitions. [2023-11-19 08:00:28,582 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.626984126984127 [2023-11-19 08:00:28,583 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 237 transitions. [2023-11-19 08:00:28,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 237 transitions. [2023-11-19 08:00:28,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:28,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 237 transitions. [2023-11-19 08:00:28,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 118.5) internal successors, (237), 2 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:28,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:28,598 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:28,600 INFO L175 Difference]: Start difference. First operand has 52 places, 50 transitions, 107 flow. Second operand 2 states and 237 transitions. [2023-11-19 08:00:28,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 49 transitions, 137 flow [2023-11-19 08:00:28,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 49 transitions, 137 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:00:28,606 INFO L231 Difference]: Finished difference. Result has 52 places, 49 transitions, 105 flow [2023-11-19 08:00:28,609 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=105, PETRI_PLACES=52, PETRI_TRANSITIONS=49} [2023-11-19 08:00:28,613 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 0 predicate places. [2023-11-19 08:00:28,613 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 49 transitions, 105 flow [2023-11-19 08:00:28,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 110.5) internal successors, (221), 2 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:28,614 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:28,614 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:28,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:00:28,615 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-19 08:00:28,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:28,615 INFO L85 PathProgramCache]: Analyzing trace with hash 765784018, now seen corresponding path program 1 times [2023-11-19 08:00:28,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:28,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646553049] [2023-11-19 08:00:28,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:28,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:29,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:29,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:29,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646553049] [2023-11-19 08:00:29,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646553049] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:29,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:29,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:00:29,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173442896] [2023-11-19 08:00:29,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:29,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:00:29,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:29,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:00:29,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:00:29,549 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 189 [2023-11-19 08:00:29,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 49 transitions, 105 flow. Second operand has 6 states, 6 states have (on average 85.16666666666667) internal successors, (511), 6 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:29,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:29,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 189 [2023-11-19 08:00:29,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:29,890 INFO L124 PetriNetUnfolderBase]: 233/685 cut-off events. [2023-11-19 08:00:29,890 INFO L125 PetriNetUnfolderBase]: For 7/9 co-relation queries the response was YES. [2023-11-19 08:00:29,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1246 conditions, 685 events. 233/685 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3944 event pairs, 83 based on Foata normal form. 1/640 useless extension candidates. Maximal degree in co-relation 1242. Up to 278 conditions per place. [2023-11-19 08:00:29,903 INFO L140 encePairwiseOnDemand]: 166/189 looper letters, 59 selfloop transitions, 29 changer transitions 0/101 dead transitions. [2023-11-19 08:00:29,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 101 transitions, 388 flow [2023-11-19 08:00:29,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:00:29,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 08:00:29,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 595 transitions. [2023-11-19 08:00:29,912 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5246913580246914 [2023-11-19 08:00:29,912 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 595 transitions. [2023-11-19 08:00:29,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 595 transitions. [2023-11-19 08:00:29,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:29,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 595 transitions. [2023-11-19 08:00:29,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.16666666666667) internal successors, (595), 6 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:29,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 189.0) internal successors, (1323), 7 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:29,924 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 189.0) internal successors, (1323), 7 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:29,924 INFO L175 Difference]: Start difference. First operand has 52 places, 49 transitions, 105 flow. Second operand 6 states and 595 transitions. [2023-11-19 08:00:29,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 101 transitions, 388 flow [2023-11-19 08:00:29,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 101 transitions, 388 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:00:29,930 INFO L231 Difference]: Finished difference. Result has 62 places, 78 transitions, 325 flow [2023-11-19 08:00:29,930 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=325, PETRI_PLACES=62, PETRI_TRANSITIONS=78} [2023-11-19 08:00:29,931 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 10 predicate places. [2023-11-19 08:00:29,931 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 78 transitions, 325 flow [2023-11-19 08:00:29,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.16666666666667) internal successors, (511), 6 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:29,932 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:29,932 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:29,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:00:29,933 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-19 08:00:29,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:29,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1696814717, now seen corresponding path program 1 times [2023-11-19 08:00:29,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:29,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485740063] [2023-11-19 08:00:29,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:29,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:29,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:30,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:30,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:30,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485740063] [2023-11-19 08:00:30,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485740063] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:30,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:30,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:00:30,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958758860] [2023-11-19 08:00:30,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:30,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:00:30,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:30,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:00:30,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:00:30,022 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 189 [2023-11-19 08:00:30,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 78 transitions, 325 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:30,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:30,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 189 [2023-11-19 08:00:30,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:30,180 INFO L124 PetriNetUnfolderBase]: 128/491 cut-off events. [2023-11-19 08:00:30,180 INFO L125 PetriNetUnfolderBase]: For 119/130 co-relation queries the response was YES. [2023-11-19 08:00:30,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1106 conditions, 491 events. 128/491 cut-off events. For 119/130 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2723 event pairs, 10 based on Foata normal form. 14/475 useless extension candidates. Maximal degree in co-relation 1097. Up to 142 conditions per place. [2023-11-19 08:00:30,186 INFO L140 encePairwiseOnDemand]: 185/189 looper letters, 26 selfloop transitions, 2 changer transitions 0/84 dead transitions. [2023-11-19 08:00:30,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 84 transitions, 395 flow [2023-11-19 08:00:30,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:00:30,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:00:30,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 336 transitions. [2023-11-19 08:00:30,190 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5925925925925926 [2023-11-19 08:00:30,190 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 336 transitions. [2023-11-19 08:00:30,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 336 transitions. [2023-11-19 08:00:30,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:30,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 336 transitions. [2023-11-19 08:00:30,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:30,196 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:30,197 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:30,197 INFO L175 Difference]: Start difference. First operand has 62 places, 78 transitions, 325 flow. Second operand 3 states and 336 transitions. [2023-11-19 08:00:30,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 84 transitions, 395 flow [2023-11-19 08:00:30,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 84 transitions, 395 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:00:30,211 INFO L231 Difference]: Finished difference. Result has 63 places, 78 transitions, 335 flow [2023-11-19 08:00:30,211 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=335, PETRI_PLACES=63, PETRI_TRANSITIONS=78} [2023-11-19 08:00:30,213 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 11 predicate places. [2023-11-19 08:00:30,213 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 78 transitions, 335 flow [2023-11-19 08:00:30,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:30,214 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:30,215 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:30,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:00:30,220 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-19 08:00:30,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:30,221 INFO L85 PathProgramCache]: Analyzing trace with hash 414860577, now seen corresponding path program 1 times [2023-11-19 08:00:30,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:30,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639623728] [2023-11-19 08:00:30,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:30,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:30,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:30,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:30,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:30,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639623728] [2023-11-19 08:00:30,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639623728] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:30,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:30,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:00:30,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068985424] [2023-11-19 08:00:30,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:30,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:00:30,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:30,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:00:30,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:00:31,017 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 189 [2023-11-19 08:00:31,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 78 transitions, 335 flow. Second operand has 6 states, 6 states have (on average 94.33333333333333) internal successors, (566), 6 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:31,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:31,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 189 [2023-11-19 08:00:31,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:31,267 INFO L124 PetriNetUnfolderBase]: 221/674 cut-off events. [2023-11-19 08:00:31,267 INFO L125 PetriNetUnfolderBase]: For 298/306 co-relation queries the response was YES. [2023-11-19 08:00:31,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1718 conditions, 674 events. 221/674 cut-off events. For 298/306 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3716 event pairs, 52 based on Foata normal form. 0/637 useless extension candidates. Maximal degree in co-relation 1708. Up to 344 conditions per place. [2023-11-19 08:00:31,274 INFO L140 encePairwiseOnDemand]: 178/189 looper letters, 50 selfloop transitions, 33 changer transitions 8/128 dead transitions. [2023-11-19 08:00:31,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 128 transitions, 720 flow [2023-11-19 08:00:31,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:00:31,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 08:00:31,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 622 transitions. [2023-11-19 08:00:31,277 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5485008818342152 [2023-11-19 08:00:31,278 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 622 transitions. [2023-11-19 08:00:31,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 622 transitions. [2023-11-19 08:00:31,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:31,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 622 transitions. [2023-11-19 08:00:31,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 103.66666666666667) internal successors, (622), 6 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:31,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 189.0) internal successors, (1323), 7 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:31,285 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 189.0) internal successors, (1323), 7 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:31,286 INFO L175 Difference]: Start difference. First operand has 63 places, 78 transitions, 335 flow. Second operand 6 states and 622 transitions. [2023-11-19 08:00:31,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 128 transitions, 720 flow [2023-11-19 08:00:31,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 128 transitions, 720 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:00:31,295 INFO L231 Difference]: Finished difference. Result has 73 places, 108 transitions, 636 flow [2023-11-19 08:00:31,296 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=636, PETRI_PLACES=73, PETRI_TRANSITIONS=108} [2023-11-19 08:00:31,297 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 21 predicate places. [2023-11-19 08:00:31,298 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 108 transitions, 636 flow [2023-11-19 08:00:31,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 94.33333333333333) internal successors, (566), 6 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:31,299 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:31,299 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:31,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:00:31,300 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-19 08:00:31,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:31,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1420528202, now seen corresponding path program 1 times [2023-11-19 08:00:31,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:31,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795904805] [2023-11-19 08:00:31,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:31,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:31,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:31,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:31,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:31,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795904805] [2023-11-19 08:00:31,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795904805] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:31,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:31,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:00:31,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320190506] [2023-11-19 08:00:31,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:31,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:00:31,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:31,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:00:31,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:00:31,875 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 189 [2023-11-19 08:00:31,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 108 transitions, 636 flow. Second operand has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:31,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:31,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 189 [2023-11-19 08:00:31,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:32,324 INFO L124 PetriNetUnfolderBase]: 385/992 cut-off events. [2023-11-19 08:00:32,325 INFO L125 PetriNetUnfolderBase]: For 739/747 co-relation queries the response was YES. [2023-11-19 08:00:32,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3195 conditions, 992 events. 385/992 cut-off events. For 739/747 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5955 event pairs, 97 based on Foata normal form. 0/929 useless extension candidates. Maximal degree in co-relation 3180. Up to 704 conditions per place. [2023-11-19 08:00:32,334 INFO L140 encePairwiseOnDemand]: 167/189 looper letters, 104 selfloop transitions, 76 changer transitions 20/214 dead transitions. [2023-11-19 08:00:32,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 214 transitions, 1494 flow [2023-11-19 08:00:32,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:00:32,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 08:00:32,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 629 transitions. [2023-11-19 08:00:32,338 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5546737213403881 [2023-11-19 08:00:32,338 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 629 transitions. [2023-11-19 08:00:32,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 629 transitions. [2023-11-19 08:00:32,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:32,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 629 transitions. [2023-11-19 08:00:32,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:32,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 189.0) internal successors, (1323), 7 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:32,345 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 189.0) internal successors, (1323), 7 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:32,345 INFO L175 Difference]: Start difference. First operand has 73 places, 108 transitions, 636 flow. Second operand 6 states and 629 transitions. [2023-11-19 08:00:32,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 214 transitions, 1494 flow [2023-11-19 08:00:32,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 214 transitions, 1494 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:00:32,356 INFO L231 Difference]: Finished difference. Result has 81 places, 174 transitions, 1227 flow [2023-11-19 08:00:32,356 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1227, PETRI_PLACES=81, PETRI_TRANSITIONS=174} [2023-11-19 08:00:32,357 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 29 predicate places. [2023-11-19 08:00:32,357 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 174 transitions, 1227 flow [2023-11-19 08:00:32,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:32,358 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:32,358 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-19 08:00:32,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 08:00:32,358 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-19 08:00:32,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:32,359 INFO L85 PathProgramCache]: Analyzing trace with hash 2130312720, now seen corresponding path program 1 times [2023-11-19 08:00:32,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:32,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362479859] [2023-11-19 08:00:32,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:32,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:32,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:00:32,389 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:00:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:00:32,439 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:00:32,439 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 08:00:32,440 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2023-11-19 08:00:32,442 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2023-11-19 08:00:32,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2023-11-19 08:00:32,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2023-11-19 08:00:32,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2023-11-19 08:00:32,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2023-11-19 08:00:32,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2023-11-19 08:00:32,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2023-11-19 08:00:32,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2023-11-19 08:00:32,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2023-11-19 08:00:32,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2023-11-19 08:00:32,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 08:00:32,454 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-19 08:00:32,457 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 08:00:32,458 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-19 08:00:32,502 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 08:00:32,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 136 transitions, 288 flow [2023-11-19 08:00:32,554 INFO L124 PetriNetUnfolderBase]: 11/295 cut-off events. [2023-11-19 08:00:32,555 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 08:00:32,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 295 events. 11/295 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 748 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 169. Up to 8 conditions per place. [2023-11-19 08:00:32,556 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 136 transitions, 288 flow [2023-11-19 08:00:32,558 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 136 places, 136 transitions, 288 flow [2023-11-19 08:00:32,558 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:00:32,559 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 136 places, 136 transitions, 288 flow [2023-11-19 08:00:32,559 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 136 places, 136 transitions, 288 flow [2023-11-19 08:00:32,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 136 transitions, 288 flow [2023-11-19 08:00:32,598 INFO L124 PetriNetUnfolderBase]: 11/295 cut-off events. [2023-11-19 08:00:32,598 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 08:00:32,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 295 events. 11/295 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 748 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 169. Up to 8 conditions per place. [2023-11-19 08:00:32,605 INFO L119 LiptonReduction]: Number of co-enabled transitions 5700 [2023-11-19 08:00:34,809 INFO L134 LiptonReduction]: Checked pairs total: 26658 [2023-11-19 08:00:34,809 INFO L136 LiptonReduction]: Total number of compositions: 81 [2023-11-19 08:00:34,812 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:00:34,812 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;@624e0e0f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:00:34,813 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-11-19 08:00:34,813 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:00:34,814 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 08:00:34,814 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:00:34,814 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:34,814 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 08:00:34,814 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-19 08:00:34,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:34,815 INFO L85 PathProgramCache]: Analyzing trace with hash 615, now seen corresponding path program 1 times [2023-11-19 08:00:34,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:34,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184730158] [2023-11-19 08:00:34,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:34,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:34,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:34,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:34,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184730158] [2023-11-19 08:00:34,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184730158] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:34,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:34,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 08:00:34,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718582667] [2023-11-19 08:00:34,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:34,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:00:34,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:34,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:00:34,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:00:34,824 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 217 [2023-11-19 08:00:34,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 64 transitions, 144 flow. Second operand has 2 states, 2 states have (on average 129.5) internal successors, (259), 2 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:34,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:34,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 217 [2023-11-19 08:00:34,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:34,986 INFO L124 PetriNetUnfolderBase]: 363/1129 cut-off events. [2023-11-19 08:00:34,987 INFO L125 PetriNetUnfolderBase]: For 49/139 co-relation queries the response was YES. [2023-11-19 08:00:34,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1808 conditions, 1129 events. 363/1129 cut-off events. For 49/139 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 7200 event pairs, 356 based on Foata normal form. 0/1002 useless extension candidates. Maximal degree in co-relation 1476. Up to 647 conditions per place. [2023-11-19 08:00:34,995 INFO L140 encePairwiseOnDemand]: 216/217 looper letters, 21 selfloop transitions, 0 changer transitions 0/63 dead transitions. [2023-11-19 08:00:34,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 63 transitions, 184 flow [2023-11-19 08:00:34,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:00:34,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 08:00:34,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 280 transitions. [2023-11-19 08:00:34,997 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6451612903225806 [2023-11-19 08:00:34,998 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 280 transitions. [2023-11-19 08:00:34,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 280 transitions. [2023-11-19 08:00:34,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:35,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 280 transitions. [2023-11-19 08:00:35,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 140.0) internal successors, (280), 2 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,003 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,003 INFO L175 Difference]: Start difference. First operand has 67 places, 64 transitions, 144 flow. Second operand 2 states and 280 transitions. [2023-11-19 08:00:35,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 63 transitions, 184 flow [2023-11-19 08:00:35,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 63 transitions, 184 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:00:35,012 INFO L231 Difference]: Finished difference. Result has 67 places, 63 transitions, 142 flow [2023-11-19 08:00:35,012 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=142, PETRI_PLACES=67, PETRI_TRANSITIONS=63} [2023-11-19 08:00:35,015 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 0 predicate places. [2023-11-19 08:00:35,015 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 63 transitions, 142 flow [2023-11-19 08:00:35,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 129.5) internal successors, (259), 2 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,020 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:35,020 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:35,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 08:00:35,020 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-19 08:00:35,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:35,021 INFO L85 PathProgramCache]: Analyzing trace with hash 849973669, now seen corresponding path program 1 times [2023-11-19 08:00:35,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:35,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986064810] [2023-11-19 08:00:35,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:35,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:35,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:35,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:35,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:35,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986064810] [2023-11-19 08:00:35,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986064810] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:35,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:35,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:00:35,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529985981] [2023-11-19 08:00:35,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:35,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:00:35,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:35,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:00:35,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:00:35,421 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 217 [2023-11-19 08:00:35,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 63 transitions, 142 flow. Second operand has 6 states, 6 states have (on average 100.16666666666667) internal successors, (601), 6 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:35,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 217 [2023-11-19 08:00:35,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:37,151 INFO L124 PetriNetUnfolderBase]: 6178/11557 cut-off events. [2023-11-19 08:00:37,152 INFO L125 PetriNetUnfolderBase]: For 246/289 co-relation queries the response was YES. [2023-11-19 08:00:37,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21780 conditions, 11557 events. 6178/11557 cut-off events. For 246/289 co-relation queries the response was YES. Maximal size of possible extension queue 422. Compared 85274 event pairs, 1725 based on Foata normal form. 16/11017 useless extension candidates. Maximal degree in co-relation 21775. Up to 6091 conditions per place. [2023-11-19 08:00:37,241 INFO L140 encePairwiseOnDemand]: 190/217 looper letters, 96 selfloop transitions, 48 changer transitions 0/161 dead transitions. [2023-11-19 08:00:37,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 161 transitions, 637 flow [2023-11-19 08:00:37,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:00:37,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 08:00:37,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 741 transitions. [2023-11-19 08:00:37,245 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5691244239631337 [2023-11-19 08:00:37,246 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 741 transitions. [2023-11-19 08:00:37,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 741 transitions. [2023-11-19 08:00:37,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:37,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 741 transitions. [2023-11-19 08:00:37,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:37,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 217.0) internal successors, (1519), 7 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:37,253 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 217.0) internal successors, (1519), 7 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:37,254 INFO L175 Difference]: Start difference. First operand has 67 places, 63 transitions, 142 flow. Second operand 6 states and 741 transitions. [2023-11-19 08:00:37,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 161 transitions, 637 flow [2023-11-19 08:00:37,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 161 transitions, 637 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:00:37,259 INFO L231 Difference]: Finished difference. Result has 77 places, 111 transitions, 484 flow [2023-11-19 08:00:37,260 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=484, PETRI_PLACES=77, PETRI_TRANSITIONS=111} [2023-11-19 08:00:37,261 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 10 predicate places. [2023-11-19 08:00:37,261 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 111 transitions, 484 flow [2023-11-19 08:00:37,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 100.16666666666667) internal successors, (601), 6 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:37,262 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:37,262 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:37,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 08:00:37,262 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-19 08:00:37,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:37,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1146233734, now seen corresponding path program 1 times [2023-11-19 08:00:37,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:37,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076335841] [2023-11-19 08:00:37,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:37,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:37,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:37,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:37,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076335841] [2023-11-19 08:00:37,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076335841] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:37,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:37,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:00:37,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351287158] [2023-11-19 08:00:37,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:37,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:00:37,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:37,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:00:37,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:00:37,304 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 217 [2023-11-19 08:00:37,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 111 transitions, 484 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:37,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:37,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 217 [2023-11-19 08:00:37,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:38,130 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([573] L1022-10-->threadEXIT: Formula: (let ((.cse0 (select |v_#race_69| v_~datas~0.base_83)) (.cse1 (* v_threadThread1of2ForFork0_~i~0_29 4))) (and (= |v_threadThread1of2ForFork0_#t~nondet4_28| (select .cse0 (+ .cse1 v_~datas~0.offset_73 1))) (= |v_threadThread1of2ForFork0_#t~nondet4_28| (select .cse0 (+ 3 .cse1 v_~datas~0.offset_73))) (= |v_threadThread1of2ForFork0_#res.offset_9| 0) (= (select .cse0 (+ .cse1 v_~datas~0.offset_73)) |v_threadThread1of2ForFork0_#t~nondet4_28|) (= |v_threadThread1of2ForFork0_#res.base_9| 0) (= (select .cse0 (+ 2 .cse1 v_~datas~0.offset_73)) |v_threadThread1of2ForFork0_#t~nondet4_28|))) InVars {#race=|v_#race_69|, ~datas~0.base=v_~datas~0.base_83, threadThread1of2ForFork0_~i~0=v_threadThread1of2ForFork0_~i~0_29, threadThread1of2ForFork0_#t~nondet4=|v_threadThread1of2ForFork0_#t~nondet4_28|, ~datas~0.offset=v_~datas~0.offset_73} OutVars{#race=|v_#race_69|, threadThread1of2ForFork0_#res.base=|v_threadThread1of2ForFork0_#res.base_9|, threadThread1of2ForFork0_#res.offset=|v_threadThread1of2ForFork0_#res.offset_9|, threadThread1of2ForFork0_#t~nondet3=|v_threadThread1of2ForFork0_#t~nondet3_19|, ~datas~0.base=v_~datas~0.base_83, threadThread1of2ForFork0_~i~0=v_threadThread1of2ForFork0_~i~0_29, ~datas~0.offset=v_~datas~0.offset_73} AuxVars[] AssignedVars[threadThread1of2ForFork0_#res.base, threadThread1of2ForFork0_#res.offset, threadThread1of2ForFork0_#t~nondet3, threadThread1of2ForFork0_#t~nondet4][58], [139#true, 156#(= |#race~datas~0| 0), 59#L1022-6true, 2#ULTIMATE.startEXITtrue, Black: 146#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 147#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 3)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 145#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), threadThread1of2ForFork0InUse, Black: 144#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), threadThread2of2ForFork0InUse, 53#threadEXITtrue, 142#true]) [2023-11-19 08:00:38,130 INFO L294 olderBase$Statistics]: this new event has 41 ancestors and is cut-off event [2023-11-19 08:00:38,130 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-11-19 08:00:38,131 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-11-19 08:00:38,131 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-11-19 08:00:38,131 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([490] L1022-6-->L1022-7: Formula: (= (store |v_#race_42| v_~datas~0.base_4 (store (select |v_#race_42| v_~datas~0.base_4) (+ (* v_threadThread2of2ForFork0_~i~0_5 4) v_~datas~0.offset_4) |v_threadThread2of2ForFork0_#t~nondet4_3|)) |v_#race_41|) InVars {#race=|v_#race_42|, ~datas~0.base=v_~datas~0.base_4, threadThread2of2ForFork0_#t~nondet4=|v_threadThread2of2ForFork0_#t~nondet4_3|, ~datas~0.offset=v_~datas~0.offset_4, threadThread2of2ForFork0_~i~0=v_threadThread2of2ForFork0_~i~0_5} OutVars{#race=|v_#race_41|, ~datas~0.base=v_~datas~0.base_4, threadThread2of2ForFork0_#t~nondet4=|v_threadThread2of2ForFork0_#t~nondet4_3|, ~datas~0.offset=v_~datas~0.offset_4, threadThread2of2ForFork0_~i~0=v_threadThread2of2ForFork0_~i~0_5} AuxVars[] AssignedVars[#race][91], [139#true, 4#L1022-10true, 156#(= |#race~datas~0| 0), 2#ULTIMATE.startEXITtrue, Black: 146#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 147#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 3)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 145#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), threadThread1of2ForFork0InUse, 79#L1022-7true, Black: 144#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), threadThread2of2ForFork0InUse, 142#true]) [2023-11-19 08:00:38,132 INFO L294 olderBase$Statistics]: this new event has 41 ancestors and is cut-off event [2023-11-19 08:00:38,132 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-11-19 08:00:38,132 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-11-19 08:00:38,132 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-11-19 08:00:38,340 INFO L124 PetriNetUnfolderBase]: 2675/6387 cut-off events. [2023-11-19 08:00:38,340 INFO L125 PetriNetUnfolderBase]: For 1809/1985 co-relation queries the response was YES. [2023-11-19 08:00:38,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14290 conditions, 6387 events. 2675/6387 cut-off events. For 1809/1985 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 53138 event pairs, 890 based on Foata normal form. 117/6093 useless extension candidates. Maximal degree in co-relation 14280. Up to 2371 conditions per place. [2023-11-19 08:00:38,404 INFO L140 encePairwiseOnDemand]: 211/217 looper letters, 31 selfloop transitions, 3 changer transitions 0/118 dead transitions. [2023-11-19 08:00:38,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 118 transitions, 573 flow [2023-11-19 08:00:38,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:00:38,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:00:38,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2023-11-19 08:00:38,407 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6021505376344086 [2023-11-19 08:00:38,407 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 392 transitions. [2023-11-19 08:00:38,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 392 transitions. [2023-11-19 08:00:38,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:38,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 392 transitions. [2023-11-19 08:00:38,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:38,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:38,412 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:38,412 INFO L175 Difference]: Start difference. First operand has 77 places, 111 transitions, 484 flow. Second operand 3 states and 392 transitions. [2023-11-19 08:00:38,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 118 transitions, 573 flow [2023-11-19 08:00:38,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 118 transitions, 573 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:00:38,435 INFO L231 Difference]: Finished difference. Result has 77 places, 111 transitions, 499 flow [2023-11-19 08:00:38,436 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=499, PETRI_PLACES=77, PETRI_TRANSITIONS=111} [2023-11-19 08:00:38,437 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 10 predicate places. [2023-11-19 08:00:38,437 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 111 transitions, 499 flow [2023-11-19 08:00:38,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:38,437 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:38,438 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:38,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 08:00:38,438 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-19 08:00:38,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:38,438 INFO L85 PathProgramCache]: Analyzing trace with hash -185603671, now seen corresponding path program 1 times [2023-11-19 08:00:38,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:38,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394156746] [2023-11-19 08:00:38,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:38,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:38,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:38,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:38,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394156746] [2023-11-19 08:00:38,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394156746] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:38,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:38,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:00:38,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280714946] [2023-11-19 08:00:38,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:38,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:00:38,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:38,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:00:38,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:00:39,024 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 217 [2023-11-19 08:00:39,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 111 transitions, 499 flow. Second operand has 6 states, 6 states have (on average 109.33333333333333) internal successors, (656), 6 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:39,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:39,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 217 [2023-11-19 08:00:39,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:40,937 INFO L124 PetriNetUnfolderBase]: 6068/11327 cut-off events. [2023-11-19 08:00:40,937 INFO L125 PetriNetUnfolderBase]: For 6972/7111 co-relation queries the response was YES. [2023-11-19 08:00:40,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30037 conditions, 11327 events. 6068/11327 cut-off events. For 6972/7111 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 83435 event pairs, 2015 based on Foata normal form. 0/10706 useless extension candidates. Maximal degree in co-relation 30026. Up to 7401 conditions per place. [2023-11-19 08:00:41,042 INFO L140 encePairwiseOnDemand]: 202/217 looper letters, 113 selfloop transitions, 70 changer transitions 0/222 dead transitions. [2023-11-19 08:00:41,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 222 transitions, 1325 flow [2023-11-19 08:00:41,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:00:41,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 08:00:41,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 756 transitions. [2023-11-19 08:00:41,047 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5806451612903226 [2023-11-19 08:00:41,047 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 756 transitions. [2023-11-19 08:00:41,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 756 transitions. [2023-11-19 08:00:41,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:41,048 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 756 transitions. [2023-11-19 08:00:41,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 126.0) internal successors, (756), 6 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:41,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 217.0) internal successors, (1519), 7 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:41,056 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 217.0) internal successors, (1519), 7 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:41,056 INFO L175 Difference]: Start difference. First operand has 77 places, 111 transitions, 499 flow. Second operand 6 states and 756 transitions. [2023-11-19 08:00:41,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 222 transitions, 1325 flow [2023-11-19 08:00:41,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 222 transitions, 1325 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:00:41,078 INFO L231 Difference]: Finished difference. Result has 87 places, 180 transitions, 1153 flow [2023-11-19 08:00:41,078 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1153, PETRI_PLACES=87, PETRI_TRANSITIONS=180} [2023-11-19 08:00:41,079 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 20 predicate places. [2023-11-19 08:00:41,079 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 180 transitions, 1153 flow [2023-11-19 08:00:41,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.33333333333333) internal successors, (656), 6 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:41,080 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:41,080 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:41,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 08:00:41,081 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-19 08:00:41,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:41,082 INFO L85 PathProgramCache]: Analyzing trace with hash 815089310, now seen corresponding path program 1 times [2023-11-19 08:00:41,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:41,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553290550] [2023-11-19 08:00:41,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:41,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:41,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:41,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:41,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:41,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553290550] [2023-11-19 08:00:41,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553290550] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:41,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:41,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:00:41,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479536321] [2023-11-19 08:00:41,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:41,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:00:41,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:41,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:00:41,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:00:41,675 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 217 [2023-11-19 08:00:41,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 180 transitions, 1153 flow. Second operand has 6 states, 6 states have (on average 100.5) internal successors, (603), 6 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:41,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:41,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 217 [2023-11-19 08:00:41,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:45,140 INFO L124 PetriNetUnfolderBase]: 12280/21372 cut-off events. [2023-11-19 08:00:45,141 INFO L125 PetriNetUnfolderBase]: For 19998/20180 co-relation queries the response was YES. [2023-11-19 08:00:45,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67739 conditions, 21372 events. 12280/21372 cut-off events. For 19998/20180 co-relation queries the response was YES. Maximal size of possible extension queue 631. Compared 159171 event pairs, 3782 based on Foata normal form. 8/19961 useless extension candidates. Maximal degree in co-relation 67723. Up to 15089 conditions per place. [2023-11-19 08:00:45,312 INFO L140 encePairwiseOnDemand]: 191/217 looper letters, 238 selfloop transitions, 132 changer transitions 0/389 dead transitions. [2023-11-19 08:00:45,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 389 transitions, 2927 flow [2023-11-19 08:00:45,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:00:45,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 08:00:45,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 784 transitions. [2023-11-19 08:00:45,316 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6021505376344086 [2023-11-19 08:00:45,316 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 784 transitions. [2023-11-19 08:00:45,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 784 transitions. [2023-11-19 08:00:45,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:45,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 784 transitions. [2023-11-19 08:00:45,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:45,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 217.0) internal successors, (1519), 7 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:45,324 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 217.0) internal successors, (1519), 7 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:45,324 INFO L175 Difference]: Start difference. First operand has 87 places, 180 transitions, 1153 flow. Second operand 6 states and 784 transitions. [2023-11-19 08:00:45,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 389 transitions, 2927 flow [2023-11-19 08:00:45,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 389 transitions, 2927 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:00:45,388 INFO L231 Difference]: Finished difference. Result has 96 places, 302 transitions, 2324 flow [2023-11-19 08:00:45,388 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=1153, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2324, PETRI_PLACES=96, PETRI_TRANSITIONS=302} [2023-11-19 08:00:45,389 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 29 predicate places. [2023-11-19 08:00:45,389 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 302 transitions, 2324 flow [2023-11-19 08:00:45,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 100.5) internal successors, (603), 6 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:45,390 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:45,390 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:45,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 08:00:45,390 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-19 08:00:45,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:45,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1580093865, now seen corresponding path program 1 times [2023-11-19 08:00:45,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:45,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408840411] [2023-11-19 08:00:45,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:45,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:45,837 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 08:00:45,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:45,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408840411] [2023-11-19 08:00:45,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408840411] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:00:45,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108438015] [2023-11-19 08:00:45,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:45,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:00:45,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d966a5-77ed-4aeb-9a93-4e7879a0b7c2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:45,846 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d966a5-77ed-4aeb-9a93-4e7879a0b7c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:00:45,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d966a5-77ed-4aeb-9a93-4e7879a0b7c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 08:00:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:45,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-19 08:00:46,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:00:46,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 08:00:46,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-19 08:00:46,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-11-19 08:00:46,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2023-11-19 08:00:46,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:00:46,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-11-19 08:00:46,386 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 08:00:46,386 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:00:46,437 WARN L854 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_282 (Array Int Int))) (= (select (select (store |c_#race| c_~datas~0.base v_ArrVal_282) |c_ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |c_ULTIMATE.start_main_~#tids~0#1.offset|)) 0)) (forall ((v_ArrVal_282 (Array Int Int))) (= (select (select (store |c_#race| c_~datas~0.base v_ArrVal_282) |c_ULTIMATE.start_main_~#tids~0#1.base|) |c_ULTIMATE.start_main_~#tids~0#1.offset|) 0)) (forall ((v_ArrVal_282 (Array Int Int))) (= (select (select (store |c_#race| c_~datas~0.base v_ArrVal_282) |c_ULTIMATE.start_main_~#tids~0#1.base|) (+ 3 |c_ULTIMATE.start_main_~#tids~0#1.offset|)) 0)) (forall ((v_ArrVal_282 (Array Int Int))) (= 0 (select (select (store |c_#race| c_~datas~0.base v_ArrVal_282) |c_ULTIMATE.start_main_~#tids~0#1.base|) (+ |c_ULTIMATE.start_main_~#tids~0#1.offset| 1))))) is different from false [2023-11-19 08:00:46,490 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (+ 3 |c_ULTIMATE.start_main_~#tids~0#1.offset|))) (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base|) .cse1 0)))) (and (forall ((v_ArrVal_282 (Array Int Int))) (= (select (select (store .cse0 c_~datas~0.base v_ArrVal_282) |c_ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |c_ULTIMATE.start_main_~#tids~0#1.offset|)) 0)) (forall ((v_ArrVal_282 (Array Int Int))) (= (select (select (store .cse0 c_~datas~0.base v_ArrVal_282) |c_ULTIMATE.start_main_~#tids~0#1.base|) .cse1) 0)) (forall ((v_ArrVal_282 (Array Int Int))) (= (select (select (store .cse0 c_~datas~0.base v_ArrVal_282) |c_ULTIMATE.start_main_~#tids~0#1.base|) (+ |c_ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0)) (forall ((v_ArrVal_282 (Array Int Int))) (= (select (select (store .cse0 c_~datas~0.base v_ArrVal_282) |c_ULTIMATE.start_main_~#tids~0#1.base|) |c_ULTIMATE.start_main_~#tids~0#1.offset|) 0))))) is different from false [2023-11-19 08:00:46,533 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (+ 2 |c_ULTIMATE.start_main_~#tids~0#1.offset|)) (.cse2 (+ 3 |c_ULTIMATE.start_main_~#tids~0#1.offset|))) (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base| (store (store (select |c_#race| |c_ULTIMATE.start_main_~#tids~0#1.base|) .cse1 0) .cse2 0)))) (and (forall ((v_ArrVal_282 (Array Int Int))) (= (select (select (store .cse0 c_~datas~0.base v_ArrVal_282) |c_ULTIMATE.start_main_~#tids~0#1.base|) |c_ULTIMATE.start_main_~#tids~0#1.offset|) 0)) (forall ((v_ArrVal_282 (Array Int Int))) (= (select (select (store .cse0 c_~datas~0.base v_ArrVal_282) |c_ULTIMATE.start_main_~#tids~0#1.base|) .cse1) 0)) (forall ((v_ArrVal_282 (Array Int Int))) (= (select (select (store .cse0 c_~datas~0.base v_ArrVal_282) |c_ULTIMATE.start_main_~#tids~0#1.base|) .cse2) 0)) (forall ((v_ArrVal_282 (Array Int Int))) (= (select (select (store .cse0 c_~datas~0.base v_ArrVal_282) |c_ULTIMATE.start_main_~#tids~0#1.base|) (+ |c_ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0))))) is different from false [2023-11-19 08:00:48,654 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2023-11-19 08:00:48,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108438015] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:00:48,655 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:00:48,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2023-11-19 08:00:48,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273879657] [2023-11-19 08:00:48,655 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:00:48,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-19 08:00:48,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:48,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-19 08:00:48,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=121, Unknown=3, NotChecked=78, Total=272 [2023-11-19 08:00:48,820 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 217 [2023-11-19 08:00:48,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 302 transitions, 2324 flow. Second operand has 17 states, 17 states have (on average 81.3529411764706) internal successors, (1383), 17 states have internal predecessors, (1383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:48,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:48,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 217 [2023-11-19 08:00:48,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:54,109 INFO L124 PetriNetUnfolderBase]: 14914/24635 cut-off events. [2023-11-19 08:00:54,109 INFO L125 PetriNetUnfolderBase]: For 46521/46525 co-relation queries the response was YES. [2023-11-19 08:00:54,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95078 conditions, 24635 events. 14914/24635 cut-off events. For 46521/46525 co-relation queries the response was YES. Maximal size of possible extension queue 644. Compared 172400 event pairs, 6452 based on Foata normal form. 528/23639 useless extension candidates. Maximal degree in co-relation 95057. Up to 23230 conditions per place. [2023-11-19 08:00:54,301 INFO L140 encePairwiseOnDemand]: 200/217 looper letters, 325 selfloop transitions, 7 changer transitions 11/351 dead transitions. [2023-11-19 08:00:54,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 351 transitions, 3333 flow [2023-11-19 08:00:54,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 08:00:54,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 08:00:54,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 641 transitions. [2023-11-19 08:00:54,305 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4219881500987492 [2023-11-19 08:00:54,305 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 641 transitions. [2023-11-19 08:00:54,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 641 transitions. [2023-11-19 08:00:54,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:54,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 641 transitions. [2023-11-19 08:00:54,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 91.57142857142857) internal successors, (641), 7 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:54,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 217.0) internal successors, (1736), 8 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:54,311 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 217.0) internal successors, (1736), 8 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:54,312 INFO L175 Difference]: Start difference. First operand has 96 places, 302 transitions, 2324 flow. Second operand 7 states and 641 transitions. [2023-11-19 08:00:54,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 351 transitions, 3333 flow [2023-11-19 08:00:54,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 351 transitions, 3237 flow, removed 48 selfloop flow, removed 0 redundant places. [2023-11-19 08:00:54,766 INFO L231 Difference]: Finished difference. Result has 103 places, 303 transitions, 2288 flow [2023-11-19 08:00:54,766 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=2216, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2288, PETRI_PLACES=103, PETRI_TRANSITIONS=303} [2023-11-19 08:00:54,767 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 36 predicate places. [2023-11-19 08:00:54,767 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 303 transitions, 2288 flow [2023-11-19 08:00:54,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 81.3529411764706) internal successors, (1383), 17 states have internal predecessors, (1383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:54,768 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:54,768 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:54,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d966a5-77ed-4aeb-9a93-4e7879a0b7c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 08:00:54,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d966a5-77ed-4aeb-9a93-4e7879a0b7c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:00:54,987 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-19 08:00:54,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:54,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1149062384, now seen corresponding path program 1 times [2023-11-19 08:00:54,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:54,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700098986] [2023-11-19 08:00:54,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:54,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:55,483 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 08:00:55,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:55,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700098986] [2023-11-19 08:00:55,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700098986] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:55,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:55,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 08:00:55,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028021006] [2023-11-19 08:00:55,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:55,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 08:00:55,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:55,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 08:00:55,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:00:55,909 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 217 [2023-11-19 08:00:55,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 303 transitions, 2288 flow. Second operand has 8 states, 8 states have (on average 96.125) internal successors, (769), 8 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:55,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:55,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 217 [2023-11-19 08:00:55,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:01:01,318 INFO L124 PetriNetUnfolderBase]: 14374/24990 cut-off events. [2023-11-19 08:01:01,318 INFO L125 PetriNetUnfolderBase]: For 44852/44943 co-relation queries the response was YES. [2023-11-19 08:01:01,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97979 conditions, 24990 events. 14374/24990 cut-off events. For 44852/44943 co-relation queries the response was YES. Maximal size of possible extension queue 865. Compared 191318 event pairs, 3870 based on Foata normal form. 401/24865 useless extension candidates. Maximal degree in co-relation 97953. Up to 11783 conditions per place. [2023-11-19 08:01:01,620 INFO L140 encePairwiseOnDemand]: 201/217 looper letters, 455 selfloop transitions, 166 changer transitions 1/638 dead transitions. [2023-11-19 08:01:01,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 638 transitions, 5721 flow [2023-11-19 08:01:01,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:01:01,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-19 08:01:01,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 975 transitions. [2023-11-19 08:01:01,626 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5616359447004609 [2023-11-19 08:01:01,626 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 975 transitions. [2023-11-19 08:01:01,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 975 transitions. [2023-11-19 08:01:01,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:01:01,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 975 transitions. [2023-11-19 08:01:01,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 121.875) internal successors, (975), 8 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:01,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 217.0) internal successors, (1953), 9 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:01,636 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 217.0) internal successors, (1953), 9 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:01,637 INFO L175 Difference]: Start difference. First operand has 103 places, 303 transitions, 2288 flow. Second operand 8 states and 975 transitions. [2023-11-19 08:01:01,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 638 transitions, 5721 flow [2023-11-19 08:01:02,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 638 transitions, 5637 flow, removed 31 selfloop flow, removed 2 redundant places. [2023-11-19 08:01:02,246 INFO L231 Difference]: Finished difference. Result has 114 places, 420 transitions, 3914 flow [2023-11-19 08:01:02,246 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=2268, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3914, PETRI_PLACES=114, PETRI_TRANSITIONS=420} [2023-11-19 08:01:02,247 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 47 predicate places. [2023-11-19 08:01:02,247 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 420 transitions, 3914 flow [2023-11-19 08:01:02,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 96.125) internal successors, (769), 8 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:02,248 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:01:02,248 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:01:02,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 08:01:02,249 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-19 08:01:02,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:02,249 INFO L85 PathProgramCache]: Analyzing trace with hash 327104232, now seen corresponding path program 1 times [2023-11-19 08:01:02,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:02,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52163929] [2023-11-19 08:01:02,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:02,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:02,551 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-19 08:01:02,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:02,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52163929] [2023-11-19 08:01:02,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52163929] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:01:02,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:01:02,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:01:02,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358220143] [2023-11-19 08:01:02,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:01:02,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:01:02,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:01:02,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:01:02,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:01:02,721 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 217 [2023-11-19 08:01:02,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 420 transitions, 3914 flow. Second operand has 6 states, 6 states have (on average 100.83333333333333) internal successors, (605), 6 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:02,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:01:02,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 217 [2023-11-19 08:01:02,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:01:09,569 INFO L124 PetriNetUnfolderBase]: 18537/31847 cut-off events. [2023-11-19 08:01:09,570 INFO L125 PetriNetUnfolderBase]: For 124952/125557 co-relation queries the response was YES. [2023-11-19 08:01:09,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147674 conditions, 31847 events. 18537/31847 cut-off events. For 124952/125557 co-relation queries the response was YES. Maximal size of possible extension queue 1151. Compared 249508 event pairs, 4564 based on Foata normal form. 68/29716 useless extension candidates. Maximal degree in co-relation 147642. Up to 24731 conditions per place. [2023-11-19 08:01:09,903 INFO L140 encePairwiseOnDemand]: 191/217 looper letters, 441 selfloop transitions, 164 changer transitions 1/622 dead transitions. [2023-11-19 08:01:09,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 622 transitions, 6656 flow [2023-11-19 08:01:09,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:01:09,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 08:01:09,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 780 transitions. [2023-11-19 08:01:09,908 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5990783410138248 [2023-11-19 08:01:09,908 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 780 transitions. [2023-11-19 08:01:09,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 780 transitions. [2023-11-19 08:01:09,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:01:09,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 780 transitions. [2023-11-19 08:01:09,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 130.0) internal successors, (780), 6 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:09,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 217.0) internal successors, (1519), 7 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:09,917 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 217.0) internal successors, (1519), 7 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:09,917 INFO L175 Difference]: Start difference. First operand has 114 places, 420 transitions, 3914 flow. Second operand 6 states and 780 transitions. [2023-11-19 08:01:09,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 622 transitions, 6656 flow [2023-11-19 08:01:10,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 622 transitions, 6618 flow, removed 19 selfloop flow, removed 0 redundant places. [2023-11-19 08:01:10,648 INFO L231 Difference]: Finished difference. Result has 123 places, 535 transitions, 5506 flow [2023-11-19 08:01:10,649 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=3876, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5506, PETRI_PLACES=123, PETRI_TRANSITIONS=535} [2023-11-19 08:01:10,649 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 56 predicate places. [2023-11-19 08:01:10,650 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 535 transitions, 5506 flow [2023-11-19 08:01:10,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 100.83333333333333) internal successors, (605), 6 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:01:10,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:01:10,650 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] [2023-11-19 08:01:10,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 08:01:10,651 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-19 08:01:10,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:10,651 INFO L85 PathProgramCache]: Analyzing trace with hash -437368121, now seen corresponding path program 1 times [2023-11-19 08:01:10,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:10,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743237442] [2023-11-19 08:01:10,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:10,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:11,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:01:11,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:01:11,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743237442] [2023-11-19 08:01:11,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743237442] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:01:11,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808484542] [2023-11-19 08:01:11,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:11,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:01:11,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d966a5-77ed-4aeb-9a93-4e7879a0b7c2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:11,666 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d966a5-77ed-4aeb-9a93-4e7879a0b7c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:01:11,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88d966a5-77ed-4aeb-9a93-4e7879a0b7c2/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 08:01:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:01:11,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-19 08:01:11,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:01:11,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 08:01:11,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2023-11-19 08:01:11,973 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-19 08:01:11,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33 [2023-11-19 08:01:12,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-19 08:01:12,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-19 08:01:12,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-11-19 08:01:12,080 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 08:01:12,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42