./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/per-thread-index-bitmask-race-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/per-thread-index-bitmask-race-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl --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 6029e5a48177b265da8d69ef0b285080ea9366bff1fe25e3f3180b0cf8b63df5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:27:21,383 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:27:21,508 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-12 02:27:21,515 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:27:21,516 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:27:21,557 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:27:21,558 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:27:21,559 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:27:21,560 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:27:21,565 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:27:21,567 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:27:21,568 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:27:21,568 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:27:21,570 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:27:21,570 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:27:21,571 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:27:21,571 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:27:21,572 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:27:21,572 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:27:21,573 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:27:21,573 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:27:21,574 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:27:21,575 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 02:27:21,575 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:27:21,576 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:27:21,576 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:27:21,577 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:27:21,578 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:27:21,578 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:27:21,579 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:27:21,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:27:21,581 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:27:21,581 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:27:21,581 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:27:21,581 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:27:21,582 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:27:21,582 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:27:21,582 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:27:21,582 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:27:21,583 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:27:21,583 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:27:21,583 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_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6029e5a48177b265da8d69ef0b285080ea9366bff1fe25e3f3180b0cf8b63df5 [2023-11-12 02:27:21,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:27:21,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:27:21,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:27:21,929 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:27:21,929 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:27:21,930 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-race-challenges/per-thread-index-bitmask-race-3.i [2023-11-12 02:27:25,255 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:27:25,711 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:27:25,712 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/sv-benchmarks/c/pthread-race-challenges/per-thread-index-bitmask-race-3.i [2023-11-12 02:27:25,739 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/data/1e132392d/db91efca573a4d43b9de2cc959fd9314/FLAGf9c66db57 [2023-11-12 02:27:25,762 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/data/1e132392d/db91efca573a4d43b9de2cc959fd9314 [2023-11-12 02:27:25,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:27:25,771 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:27:25,775 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:27:25,775 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:27:25,780 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:27:25,781 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:27:25" (1/1) ... [2023-11-12 02:27:25,782 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dc5953a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:25, skipping insertion in model container [2023-11-12 02:27:25,782 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:27:25" (1/1) ... [2023-11-12 02:27:25,853 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:27:26,093 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 02:27:26,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:27:26,464 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:27:26,480 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 02:27:26,514 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:27:26,593 WARN L672 CHandler]: The function ffs is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:27:26,594 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:27:26,602 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:27:26,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:26 WrapperNode [2023-11-12 02:27:26,603 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:27:26,604 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:27:26,604 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:27:26,604 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:27:26,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:26" (1/1) ... [2023-11-12 02:27:26,650 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:26" (1/1) ... [2023-11-12 02:27:26,695 INFO L138 Inliner]: procedures = 281, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 129 [2023-11-12 02:27:26,696 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:27:26,696 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:27:26,697 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:27:26,697 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:27:26,707 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:26" (1/1) ... [2023-11-12 02:27:26,707 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:26" (1/1) ... [2023-11-12 02:27:26,717 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:26" (1/1) ... [2023-11-12 02:27:26,717 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:26" (1/1) ... [2023-11-12 02:27:26,736 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:26" (1/1) ... [2023-11-12 02:27:26,745 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:26" (1/1) ... [2023-11-12 02:27:26,777 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:26" (1/1) ... [2023-11-12 02:27:26,779 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:26" (1/1) ... [2023-11-12 02:27:26,788 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:27:26,789 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:27:26,789 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:27:26,789 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:27:26,790 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:26" (1/1) ... [2023-11-12 02:27:26,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:27:26,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:27:26,827 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:27:26,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:27:26,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:27:26,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:27:26,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:27:26,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:27:26,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:27:26,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:27:26,883 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 02:27:26,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:27:26,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:27:26,885 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2023-11-12 02:27:26,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:27:26,886 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-12 02:27:26,887 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-12 02:27:26,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:27:26,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:27:26,889 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:27:27,099 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:27:27,101 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:27:27,567 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:27:27,580 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:27:27,582 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:27:27,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:27:27 BoogieIcfgContainer [2023-11-12 02:27:27,585 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:27:27,587 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:27:27,587 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:27:27,590 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:27:27,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:27:25" (1/3) ... [2023-11-12 02:27:27,592 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f391f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:27:27, skipping insertion in model container [2023-11-12 02:27:27,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:26" (2/3) ... [2023-11-12 02:27:27,592 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f391f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:27:27, skipping insertion in model container [2023-11-12 02:27:27,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:27:27" (3/3) ... [2023-11-12 02:27:27,594 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-index-bitmask-race-3.i [2023-11-12 02:27:27,603 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:27:27,615 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:27:27,615 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2023-11-12 02:27:27,615 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:27:27,693 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-12 02:27:27,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 188 places, 196 transitions, 399 flow [2023-11-12 02:27:27,959 INFO L124 PetriNetUnfolderBase]: 16/284 cut-off events. [2023-11-12 02:27:27,965 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-12 02:27:27,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 284 events. 16/284 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 617 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 142. Up to 6 conditions per place. [2023-11-12 02:27:27,976 INFO L82 GeneralOperation]: Start removeDead. Operand has 188 places, 196 transitions, 399 flow [2023-11-12 02:27:27,985 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 188 places, 196 transitions, 399 flow [2023-11-12 02:27:27,990 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:27:28,002 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 188 places, 196 transitions, 399 flow [2023-11-12 02:27:28,005 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 188 places, 196 transitions, 399 flow [2023-11-12 02:27:28,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 188 places, 196 transitions, 399 flow [2023-11-12 02:27:28,082 INFO L124 PetriNetUnfolderBase]: 16/284 cut-off events. [2023-11-12 02:27:28,083 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-12 02:27:28,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 284 events. 16/284 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 617 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 142. Up to 6 conditions per place. [2023-11-12 02:27:28,094 INFO L119 LiptonReduction]: Number of co-enabled transitions 9120 [2023-11-12 02:27:33,051 INFO L134 LiptonReduction]: Checked pairs total: 54580 [2023-11-12 02:27:33,051 INFO L136 LiptonReduction]: Total number of compositions: 121 [2023-11-12 02:27:33,068 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:27:33,076 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;@649ee19d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:27:33,076 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-11-12 02:27:33,079 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:27:33,079 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-12 02:27:33,079 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:27:33,080 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:33,080 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-12 02:27:33,081 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-12 02:27:33,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:33,087 INFO L85 PathProgramCache]: Analyzing trace with hash 641, now seen corresponding path program 1 times [2023-11-12 02:27:33,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:33,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164474688] [2023-11-12 02:27:33,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:33,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:33,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:33,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:33,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164474688] [2023-11-12 02:27:33,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164474688] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:33,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:33,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 02:27:33,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261540855] [2023-11-12 02:27:33,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:33,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:27:33,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:33,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:27:33,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:27:33,271 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 317 [2023-11-12 02:27:33,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 91 transitions, 189 flow. Second operand has 2 states, 2 states have (on average 190.5) internal successors, (381), 2 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:33,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:33,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 317 [2023-11-12 02:27:33,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:33,523 INFO L124 PetriNetUnfolderBase]: 258/861 cut-off events. [2023-11-12 02:27:33,523 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 02:27:33,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1356 conditions, 861 events. 258/861 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 5115 event pairs, 204 based on Foata normal form. 0/778 useless extension candidates. Maximal degree in co-relation 1267. Up to 490 conditions per place. [2023-11-12 02:27:33,533 INFO L140 encePairwiseOnDemand]: 316/317 looper letters, 35 selfloop transitions, 0 changer transitions 0/90 dead transitions. [2023-11-12 02:27:33,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 90 transitions, 257 flow [2023-11-12 02:27:33,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:27:33,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:27:33,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 416 transitions. [2023-11-12 02:27:33,551 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6561514195583596 [2023-11-12 02:27:33,552 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 416 transitions. [2023-11-12 02:27:33,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 416 transitions. [2023-11-12 02:27:33,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:33,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 416 transitions. [2023-11-12 02:27:33,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 208.0) internal successors, (416), 2 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:33,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 317.0) internal successors, (951), 3 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:33,570 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 317.0) internal successors, (951), 3 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:33,573 INFO L175 Difference]: Start difference. First operand has 89 places, 91 transitions, 189 flow. Second operand 2 states and 416 transitions. [2023-11-12 02:27:33,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 90 transitions, 257 flow [2023-11-12 02:27:33,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 90 transitions, 257 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:27:33,582 INFO L231 Difference]: Finished difference. Result has 89 places, 90 transitions, 187 flow [2023-11-12 02:27:33,584 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=187, PETRI_PLACES=89, PETRI_TRANSITIONS=90} [2023-11-12 02:27:33,588 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 0 predicate places. [2023-11-12 02:27:33,589 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 90 transitions, 187 flow [2023-11-12 02:27:33,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 190.5) internal successors, (381), 2 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:33,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:33,590 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-12 02:27:33,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:27:33,591 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-12 02:27:33,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:33,592 INFO L85 PathProgramCache]: Analyzing trace with hash 19670451, now seen corresponding path program 1 times [2023-11-12 02:27:33,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:33,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764544058] [2023-11-12 02:27:33,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:33,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:33,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:33,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:33,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764544058] [2023-11-12 02:27:33,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764544058] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:33,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:33,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:27:33,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657351655] [2023-11-12 02:27:33,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:33,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:27:33,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:33,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:27:33,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:27:33,761 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 317 [2023-11-12 02:27:33,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 90 transitions, 187 flow. Second operand has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:33,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:33,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 317 [2023-11-12 02:27:33,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:34,051 INFO L124 PetriNetUnfolderBase]: 325/1044 cut-off events. [2023-11-12 02:27:34,052 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 02:27:34,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1667 conditions, 1044 events. 325/1044 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 6436 event pairs, 126 based on Foata normal form. 0/912 useless extension candidates. Maximal degree in co-relation 1663. Up to 316 conditions per place. [2023-11-12 02:27:34,062 INFO L140 encePairwiseOnDemand]: 306/317 looper letters, 63 selfloop transitions, 8 changer transitions 0/122 dead transitions. [2023-11-12 02:27:34,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 122 transitions, 393 flow [2023-11-12 02:27:34,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:27:34,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:27:34,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 611 transitions. [2023-11-12 02:27:34,068 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6424815983175605 [2023-11-12 02:27:34,068 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 611 transitions. [2023-11-12 02:27:34,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 611 transitions. [2023-11-12 02:27:34,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:34,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 611 transitions. [2023-11-12 02:27:34,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 203.66666666666666) internal successors, (611), 3 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:34,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 317.0) internal successors, (1268), 4 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:34,077 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 317.0) internal successors, (1268), 4 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:34,078 INFO L175 Difference]: Start difference. First operand has 89 places, 90 transitions, 187 flow. Second operand 3 states and 611 transitions. [2023-11-12 02:27:34,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 122 transitions, 393 flow [2023-11-12 02:27:34,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 122 transitions, 393 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:27:34,083 INFO L231 Difference]: Finished difference. Result has 93 places, 98 transitions, 257 flow [2023-11-12 02:27:34,084 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=257, PETRI_PLACES=93, PETRI_TRANSITIONS=98} [2023-11-12 02:27:34,085 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 4 predicate places. [2023-11-12 02:27:34,085 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 98 transitions, 257 flow [2023-11-12 02:27:34,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:34,086 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:34,086 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:34,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:27:34,087 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-12 02:27:34,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:34,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1312622900, now seen corresponding path program 1 times [2023-11-12 02:27:34,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:34,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560139584] [2023-11-12 02:27:34,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:34,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:34,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:34,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:34,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:34,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560139584] [2023-11-12 02:27:34,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560139584] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:34,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:34,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:27:34,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680492807] [2023-11-12 02:27:34,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:34,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:27:34,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:34,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:27:34,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:27:34,347 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 317 [2023-11-12 02:27:34,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 98 transitions, 257 flow. Second operand has 4 states, 4 states have (on average 181.75) internal successors, (727), 4 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:34,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:34,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 317 [2023-11-12 02:27:34,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:34,606 INFO L124 PetriNetUnfolderBase]: 303/1008 cut-off events. [2023-11-12 02:27:34,606 INFO L125 PetriNetUnfolderBase]: For 186/200 co-relation queries the response was YES. [2023-11-12 02:27:34,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1796 conditions, 1008 events. 303/1008 cut-off events. For 186/200 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 6273 event pairs, 149 based on Foata normal form. 2/887 useless extension candidates. Maximal degree in co-relation 1790. Up to 536 conditions per place. [2023-11-12 02:27:34,615 INFO L140 encePairwiseOnDemand]: 312/317 looper letters, 64 selfloop transitions, 4 changer transitions 0/124 dead transitions. [2023-11-12 02:27:34,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 124 transitions, 465 flow [2023-11-12 02:27:34,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:27:34,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:27:34,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 786 transitions. [2023-11-12 02:27:34,619 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6198738170347003 [2023-11-12 02:27:34,619 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 786 transitions. [2023-11-12 02:27:34,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 786 transitions. [2023-11-12 02:27:34,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:34,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 786 transitions. [2023-11-12 02:27:34,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 196.5) internal successors, (786), 4 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:34,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 317.0) internal successors, (1585), 5 states have internal predecessors, (1585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:34,629 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 317.0) internal successors, (1585), 5 states have internal predecessors, (1585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:34,629 INFO L175 Difference]: Start difference. First operand has 93 places, 98 transitions, 257 flow. Second operand 4 states and 786 transitions. [2023-11-12 02:27:34,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 124 transitions, 465 flow [2023-11-12 02:27:34,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 124 transitions, 443 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:27:34,635 INFO L231 Difference]: Finished difference. Result has 96 places, 100 transitions, 264 flow [2023-11-12 02:27:34,636 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=264, PETRI_PLACES=96, PETRI_TRANSITIONS=100} [2023-11-12 02:27:34,637 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 7 predicate places. [2023-11-12 02:27:34,637 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 100 transitions, 264 flow [2023-11-12 02:27:34,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 181.75) internal successors, (727), 4 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:34,639 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:34,639 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:34,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:27:34,639 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-12 02:27:34,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:34,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1735239334, now seen corresponding path program 1 times [2023-11-12 02:27:34,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:34,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101382235] [2023-11-12 02:27:34,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:34,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:35,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:35,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:35,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101382235] [2023-11-12 02:27:35,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101382235] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:35,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:35,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:27:35,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77381549] [2023-11-12 02:27:35,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:35,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:27:35,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:35,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:27:35,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:27:35,297 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 317 [2023-11-12 02:27:35,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 100 transitions, 264 flow. Second operand has 6 states, 6 states have (on average 165.33333333333334) internal successors, (992), 6 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:35,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:35,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 317 [2023-11-12 02:27:35,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:35,953 INFO L124 PetriNetUnfolderBase]: 900/2373 cut-off events. [2023-11-12 02:27:35,954 INFO L125 PetriNetUnfolderBase]: For 206/231 co-relation queries the response was YES. [2023-11-12 02:27:35,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4534 conditions, 2373 events. 900/2373 cut-off events. For 206/231 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 16755 event pairs, 257 based on Foata normal form. 16/2171 useless extension candidates. Maximal degree in co-relation 4526. Up to 1026 conditions per place. [2023-11-12 02:27:35,974 INFO L140 encePairwiseOnDemand]: 294/317 looper letters, 143 selfloop transitions, 29 changer transitions 0/207 dead transitions. [2023-11-12 02:27:35,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 207 transitions, 876 flow [2023-11-12 02:27:35,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:27:35,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:27:35,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1142 transitions. [2023-11-12 02:27:35,980 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6004206098843323 [2023-11-12 02:27:35,980 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1142 transitions. [2023-11-12 02:27:35,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1142 transitions. [2023-11-12 02:27:35,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:35,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1142 transitions. [2023-11-12 02:27:35,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 190.33333333333334) internal successors, (1142), 6 states have internal predecessors, (1142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:35,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 317.0) internal successors, (2219), 7 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:35,992 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 317.0) internal successors, (2219), 7 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:35,993 INFO L175 Difference]: Start difference. First operand has 96 places, 100 transitions, 264 flow. Second operand 6 states and 1142 transitions. [2023-11-12 02:27:35,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 207 transitions, 876 flow [2023-11-12 02:27:36,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 207 transitions, 872 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:27:36,004 INFO L231 Difference]: Finished difference. Result has 105 places, 129 transitions, 481 flow [2023-11-12 02:27:36,005 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=481, PETRI_PLACES=105, PETRI_TRANSITIONS=129} [2023-11-12 02:27:36,007 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 16 predicate places. [2023-11-12 02:27:36,007 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 129 transitions, 481 flow [2023-11-12 02:27:36,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.33333333333334) internal successors, (992), 6 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:36,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:36,009 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:36,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:27:36,009 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-12 02:27:36,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:36,010 INFO L85 PathProgramCache]: Analyzing trace with hash -757647534, now seen corresponding path program 1 times [2023-11-12 02:27:36,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:36,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567946247] [2023-11-12 02:27:36,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:36,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:36,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:36,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:36,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567946247] [2023-11-12 02:27:36,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567946247] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:36,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:36,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:27:36,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335924649] [2023-11-12 02:27:36,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:36,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:27:36,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:36,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:27:36,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:27:36,116 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 317 [2023-11-12 02:27:36,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 129 transitions, 481 flow. Second operand has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:36,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:36,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 317 [2023-11-12 02:27:36,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:36,417 INFO L124 PetriNetUnfolderBase]: 478/1589 cut-off events. [2023-11-12 02:27:36,417 INFO L125 PetriNetUnfolderBase]: For 359/403 co-relation queries the response was YES. [2023-11-12 02:27:36,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3294 conditions, 1589 events. 478/1589 cut-off events. For 359/403 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 11351 event pairs, 213 based on Foata normal form. 8/1461 useless extension candidates. Maximal degree in co-relation 3282. Up to 775 conditions per place. [2023-11-12 02:27:36,433 INFO L140 encePairwiseOnDemand]: 311/317 looper letters, 60 selfloop transitions, 7 changer transitions 0/147 dead transitions. [2023-11-12 02:27:36,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 147 transitions, 661 flow [2023-11-12 02:27:36,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:27:36,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:27:36,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 591 transitions. [2023-11-12 02:27:36,437 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6214511041009464 [2023-11-12 02:27:36,437 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 591 transitions. [2023-11-12 02:27:36,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 591 transitions. [2023-11-12 02:27:36,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:36,438 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 591 transitions. [2023-11-12 02:27:36,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:36,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 317.0) internal successors, (1268), 4 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:36,444 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 317.0) internal successors, (1268), 4 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:36,445 INFO L175 Difference]: Start difference. First operand has 105 places, 129 transitions, 481 flow. Second operand 3 states and 591 transitions. [2023-11-12 02:27:36,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 147 transitions, 661 flow [2023-11-12 02:27:36,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 147 transitions, 661 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:27:36,453 INFO L231 Difference]: Finished difference. Result has 109 places, 134 transitions, 537 flow [2023-11-12 02:27:36,454 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=537, PETRI_PLACES=109, PETRI_TRANSITIONS=134} [2023-11-12 02:27:36,454 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 20 predicate places. [2023-11-12 02:27:36,455 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 134 transitions, 537 flow [2023-11-12 02:27:36,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:36,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:36,456 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:36,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:27:36,456 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-12 02:27:36,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:36,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1117474698, now seen corresponding path program 1 times [2023-11-12 02:27:36,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:36,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945230786] [2023-11-12 02:27:36,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:36,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:36,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:36,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:36,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945230786] [2023-11-12 02:27:36,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945230786] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:36,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:36,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:27:36,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535788083] [2023-11-12 02:27:36,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:36,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:27:36,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:36,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:27:36,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:27:36,507 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 317 [2023-11-12 02:27:36,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 134 transitions, 537 flow. Second operand has 3 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:36,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:36,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 317 [2023-11-12 02:27:36,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:36,809 INFO L124 PetriNetUnfolderBase]: 457/1537 cut-off events. [2023-11-12 02:27:36,810 INFO L125 PetriNetUnfolderBase]: For 605/640 co-relation queries the response was YES. [2023-11-12 02:27:36,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3376 conditions, 1537 events. 457/1537 cut-off events. For 605/640 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 10834 event pairs, 73 based on Foata normal form. 34/1448 useless extension candidates. Maximal degree in co-relation 3362. Up to 760 conditions per place. [2023-11-12 02:27:36,826 INFO L140 encePairwiseOnDemand]: 313/317 looper letters, 64 selfloop transitions, 2 changer transitions 2/150 dead transitions. [2023-11-12 02:27:36,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 150 transitions, 735 flow [2023-11-12 02:27:36,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:27:36,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:27:36,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 604 transitions. [2023-11-12 02:27:36,829 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6351209253417456 [2023-11-12 02:27:36,830 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 604 transitions. [2023-11-12 02:27:36,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 604 transitions. [2023-11-12 02:27:36,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:36,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 604 transitions. [2023-11-12 02:27:36,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 201.33333333333334) internal successors, (604), 3 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:36,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 317.0) internal successors, (1268), 4 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:36,836 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 317.0) internal successors, (1268), 4 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:36,836 INFO L175 Difference]: Start difference. First operand has 109 places, 134 transitions, 537 flow. Second operand 3 states and 604 transitions. [2023-11-12 02:27:36,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 150 transitions, 735 flow [2023-11-12 02:27:36,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 150 transitions, 717 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:27:36,845 INFO L231 Difference]: Finished difference. Result has 108 places, 132 transitions, 523 flow [2023-11-12 02:27:36,845 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=523, PETRI_PLACES=108, PETRI_TRANSITIONS=132} [2023-11-12 02:27:36,846 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 19 predicate places. [2023-11-12 02:27:36,847 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 132 transitions, 523 flow [2023-11-12 02:27:36,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:36,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:36,847 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] [2023-11-12 02:27:36,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:27:36,848 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-12 02:27:36,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:36,848 INFO L85 PathProgramCache]: Analyzing trace with hash -364276722, now seen corresponding path program 1 times [2023-11-12 02:27:36,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:36,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187876790] [2023-11-12 02:27:36,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:36,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:36,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:37,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:37,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:37,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187876790] [2023-11-12 02:27:37,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187876790] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:37,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:37,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:27:37,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704046122] [2023-11-12 02:27:37,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:37,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:27:37,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:37,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:27:37,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:27:37,480 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 317 [2023-11-12 02:27:37,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 132 transitions, 523 flow. Second operand has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:37,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:37,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 317 [2023-11-12 02:27:37,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:38,461 INFO L124 PetriNetUnfolderBase]: 1095/2761 cut-off events. [2023-11-12 02:27:38,461 INFO L125 PetriNetUnfolderBase]: For 1261/1311 co-relation queries the response was YES. [2023-11-12 02:27:38,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6809 conditions, 2761 events. 1095/2761 cut-off events. For 1261/1311 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 19683 event pairs, 463 based on Foata normal form. 24/2530 useless extension candidates. Maximal degree in co-relation 6795. Up to 1814 conditions per place. [2023-11-12 02:27:38,489 INFO L140 encePairwiseOnDemand]: 294/317 looper letters, 171 selfloop transitions, 83 changer transitions 0/290 dead transitions. [2023-11-12 02:27:38,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 290 transitions, 1667 flow [2023-11-12 02:27:38,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:27:38,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:27:38,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1176 transitions. [2023-11-12 02:27:38,495 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6182965299684543 [2023-11-12 02:27:38,495 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1176 transitions. [2023-11-12 02:27:38,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1176 transitions. [2023-11-12 02:27:38,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:38,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1176 transitions. [2023-11-12 02:27:38,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:38,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 317.0) internal successors, (2219), 7 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:38,506 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 317.0) internal successors, (2219), 7 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:38,506 INFO L175 Difference]: Start difference. First operand has 108 places, 132 transitions, 523 flow. Second operand 6 states and 1176 transitions. [2023-11-12 02:27:38,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 290 transitions, 1667 flow [2023-11-12 02:27:38,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 290 transitions, 1641 flow, removed 10 selfloop flow, removed 2 redundant places. [2023-11-12 02:27:38,525 INFO L231 Difference]: Finished difference. Result has 115 places, 213 transitions, 1253 flow [2023-11-12 02:27:38,526 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=517, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1253, PETRI_PLACES=115, PETRI_TRANSITIONS=213} [2023-11-12 02:27:38,527 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 26 predicate places. [2023-11-12 02:27:38,527 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 213 transitions, 1253 flow [2023-11-12 02:27:38,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:38,528 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:38,528 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:38,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:27:38,529 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-12 02:27:38,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:38,529 INFO L85 PathProgramCache]: Analyzing trace with hash -218931083, now seen corresponding path program 1 times [2023-11-12 02:27:38,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:38,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69233099] [2023-11-12 02:27:38,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:38,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:38,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:38,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:38,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:38,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69233099] [2023-11-12 02:27:38,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69233099] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:27:38,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501307263] [2023-11-12 02:27:38,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:38,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:27:38,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:27:38,664 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:27:38,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:27:38,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:38,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:27:38,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:27:38,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:38,970 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:27:39,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:39,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501307263] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:27:39,062 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:27:39,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-11-12 02:27:39,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881399103] [2023-11-12 02:27:39,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:27:39,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:27:39,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:39,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:27:39,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:27:39,222 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 317 [2023-11-12 02:27:39,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 213 transitions, 1253 flow. Second operand has 7 states, 7 states have (on average 180.42857142857142) internal successors, (1263), 7 states have internal predecessors, (1263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:39,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:39,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 317 [2023-11-12 02:27:39,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:39,742 INFO L124 PetriNetUnfolderBase]: 488/1575 cut-off events. [2023-11-12 02:27:39,742 INFO L125 PetriNetUnfolderBase]: For 920/943 co-relation queries the response was YES. [2023-11-12 02:27:39,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4051 conditions, 1575 events. 488/1575 cut-off events. For 920/943 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 11031 event pairs, 148 based on Foata normal form. 2/1477 useless extension candidates. Maximal degree in co-relation 4033. Up to 499 conditions per place. [2023-11-12 02:27:39,761 INFO L140 encePairwiseOnDemand]: 310/317 looper letters, 56 selfloop transitions, 5 changer transitions 12/205 dead transitions. [2023-11-12 02:27:39,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 205 transitions, 1241 flow [2023-11-12 02:27:39,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:27:39,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:27:39,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1290 transitions. [2023-11-12 02:27:39,766 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5813429472735466 [2023-11-12 02:27:39,767 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1290 transitions. [2023-11-12 02:27:39,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1290 transitions. [2023-11-12 02:27:39,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:39,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1290 transitions. [2023-11-12 02:27:39,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 184.28571428571428) internal successors, (1290), 7 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:39,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 317.0) internal successors, (2536), 8 states have internal predecessors, (2536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:39,778 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 317.0) internal successors, (2536), 8 states have internal predecessors, (2536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:39,778 INFO L175 Difference]: Start difference. First operand has 115 places, 213 transitions, 1253 flow. Second operand 7 states and 1290 transitions. [2023-11-12 02:27:39,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 205 transitions, 1241 flow [2023-11-12 02:27:39,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 205 transitions, 1183 flow, removed 27 selfloop flow, removed 2 redundant places. [2023-11-12 02:27:39,798 INFO L231 Difference]: Finished difference. Result has 120 places, 178 transitions, 970 flow [2023-11-12 02:27:39,799 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=1000, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=970, PETRI_PLACES=120, PETRI_TRANSITIONS=178} [2023-11-12 02:27:39,803 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 31 predicate places. [2023-11-12 02:27:39,803 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 178 transitions, 970 flow [2023-11-12 02:27:39,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 180.42857142857142) internal successors, (1263), 7 states have internal predecessors, (1263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:39,804 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:39,804 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:39,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:27:40,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:27:40,010 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-12 02:27:40,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:40,010 INFO L85 PathProgramCache]: Analyzing trace with hash -294307923, now seen corresponding path program 1 times [2023-11-12 02:27:40,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:40,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867654306] [2023-11-12 02:27:40,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:40,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:40,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:40,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:40,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:40,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867654306] [2023-11-12 02:27:40,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867654306] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:40,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:40,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:27:40,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512691366] [2023-11-12 02:27:40,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:40,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:27:40,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:40,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:27:40,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:27:40,254 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 317 [2023-11-12 02:27:40,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 178 transitions, 970 flow. Second operand has 4 states, 4 states have (on average 185.75) internal successors, (743), 4 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:40,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:40,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 317 [2023-11-12 02:27:40,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:40,563 INFO L124 PetriNetUnfolderBase]: 521/1561 cut-off events. [2023-11-12 02:27:40,564 INFO L125 PetriNetUnfolderBase]: For 808/853 co-relation queries the response was YES. [2023-11-12 02:27:40,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3975 conditions, 1561 events. 521/1561 cut-off events. For 808/853 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 10566 event pairs, 197 based on Foata normal form. 8/1469 useless extension candidates. Maximal degree in co-relation 3955. Up to 729 conditions per place. [2023-11-12 02:27:40,582 INFO L140 encePairwiseOnDemand]: 312/317 looper letters, 51 selfloop transitions, 4 changer transitions 0/184 dead transitions. [2023-11-12 02:27:40,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 184 transitions, 1100 flow [2023-11-12 02:27:40,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:27:40,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:27:40,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 766 transitions. [2023-11-12 02:27:40,586 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6041009463722398 [2023-11-12 02:27:40,586 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 766 transitions. [2023-11-12 02:27:40,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 766 transitions. [2023-11-12 02:27:40,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:40,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 766 transitions. [2023-11-12 02:27:40,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 191.5) internal successors, (766), 4 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:40,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 317.0) internal successors, (1585), 5 states have internal predecessors, (1585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:40,594 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 317.0) internal successors, (1585), 5 states have internal predecessors, (1585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:40,594 INFO L175 Difference]: Start difference. First operand has 120 places, 178 transitions, 970 flow. Second operand 4 states and 766 transitions. [2023-11-12 02:27:40,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 184 transitions, 1100 flow [2023-11-12 02:27:40,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 184 transitions, 1097 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:27:40,609 INFO L231 Difference]: Finished difference. Result has 115 places, 181 transitions, 996 flow [2023-11-12 02:27:40,610 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=967, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=996, PETRI_PLACES=115, PETRI_TRANSITIONS=181} [2023-11-12 02:27:40,611 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 26 predicate places. [2023-11-12 02:27:40,611 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 181 transitions, 996 flow [2023-11-12 02:27:40,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 185.75) internal successors, (743), 4 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:40,612 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:40,612 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:40,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:27:40,612 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-12 02:27:40,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:40,613 INFO L85 PathProgramCache]: Analyzing trace with hash -919658473, now seen corresponding path program 1 times [2023-11-12 02:27:40,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:40,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836204316] [2023-11-12 02:27:40,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:40,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:40,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:40,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:40,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836204316] [2023-11-12 02:27:40,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836204316] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:40,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:40,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:27:40,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074457274] [2023-11-12 02:27:40,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:40,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:27:40,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:40,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:27:40,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:27:40,826 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 317 [2023-11-12 02:27:40,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 181 transitions, 996 flow. Second operand has 4 states, 4 states have (on average 184.75) internal successors, (739), 4 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:40,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:40,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 317 [2023-11-12 02:27:40,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:41,294 INFO L124 PetriNetUnfolderBase]: 721/2197 cut-off events. [2023-11-12 02:27:41,294 INFO L125 PetriNetUnfolderBase]: For 1207/1285 co-relation queries the response was YES. [2023-11-12 02:27:41,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5708 conditions, 2197 events. 721/2197 cut-off events. For 1207/1285 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 16645 event pairs, 210 based on Foata normal form. 17/2087 useless extension candidates. Maximal degree in co-relation 5686. Up to 776 conditions per place. [2023-11-12 02:27:41,320 INFO L140 encePairwiseOnDemand]: 310/317 looper letters, 75 selfloop transitions, 6 changer transitions 0/209 dead transitions. [2023-11-12 02:27:41,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 209 transitions, 1262 flow [2023-11-12 02:27:41,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:27:41,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:27:41,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 780 transitions. [2023-11-12 02:27:41,324 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6151419558359621 [2023-11-12 02:27:41,324 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 780 transitions. [2023-11-12 02:27:41,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 780 transitions. [2023-11-12 02:27:41,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:41,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 780 transitions. [2023-11-12 02:27:41,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 195.0) internal successors, (780), 4 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) [2023-11-12 02:27:41,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 317.0) internal successors, (1585), 5 states have internal predecessors, (1585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:41,331 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 317.0) internal successors, (1585), 5 states have internal predecessors, (1585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:41,331 INFO L175 Difference]: Start difference. First operand has 115 places, 181 transitions, 996 flow. Second operand 4 states and 780 transitions. [2023-11-12 02:27:41,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 209 transitions, 1262 flow [2023-11-12 02:27:41,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 209 transitions, 1258 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-12 02:27:41,351 INFO L231 Difference]: Finished difference. Result has 119 places, 182 transitions, 1016 flow [2023-11-12 02:27:41,351 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=987, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1016, PETRI_PLACES=119, PETRI_TRANSITIONS=182} [2023-11-12 02:27:41,352 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 30 predicate places. [2023-11-12 02:27:41,352 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 182 transitions, 1016 flow [2023-11-12 02:27:41,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 184.75) internal successors, (739), 4 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:41,353 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:41,353 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:41,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:27:41,353 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-12 02:27:41,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:41,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1873476162, now seen corresponding path program 1 times [2023-11-12 02:27:41,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:41,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447478594] [2023-11-12 02:27:41,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:41,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:41,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:42,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 02:27:42,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:42,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447478594] [2023-11-12 02:27:42,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447478594] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:42,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:42,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:27:42,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971741752] [2023-11-12 02:27:42,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:42,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:27:42,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:42,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:27:42,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:27:42,477 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 317 [2023-11-12 02:27:42,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 182 transitions, 1016 flow. Second operand has 8 states, 8 states have (on average 165.625) internal successors, (1325), 8 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:42,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:42,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 317 [2023-11-12 02:27:42,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:43,041 INFO L124 PetriNetUnfolderBase]: 1060/2724 cut-off events. [2023-11-12 02:27:43,042 INFO L125 PetriNetUnfolderBase]: For 2227/2290 co-relation queries the response was YES. [2023-11-12 02:27:43,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8217 conditions, 2724 events. 1060/2724 cut-off events. For 2227/2290 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 19700 event pairs, 545 based on Foata normal form. 77/2595 useless extension candidates. Maximal degree in co-relation 8193. Up to 2044 conditions per place. [2023-11-12 02:27:43,077 INFO L140 encePairwiseOnDemand]: 310/317 looper letters, 135 selfloop transitions, 5 changer transitions 0/191 dead transitions. [2023-11-12 02:27:43,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 191 transitions, 1348 flow [2023-11-12 02:27:43,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:27:43,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:27:43,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1195 transitions. [2023-11-12 02:27:43,082 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5385308697611537 [2023-11-12 02:27:43,082 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1195 transitions. [2023-11-12 02:27:43,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1195 transitions. [2023-11-12 02:27:43,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:43,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1195 transitions. [2023-11-12 02:27:43,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 170.71428571428572) internal successors, (1195), 7 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:43,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 317.0) internal successors, (2536), 8 states have internal predecessors, (2536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:43,095 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 317.0) internal successors, (2536), 8 states have internal predecessors, (2536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:43,095 INFO L175 Difference]: Start difference. First operand has 119 places, 182 transitions, 1016 flow. Second operand 7 states and 1195 transitions. [2023-11-12 02:27:43,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 191 transitions, 1348 flow [2023-11-12 02:27:43,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 191 transitions, 1327 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-12 02:27:43,123 INFO L231 Difference]: Finished difference. Result has 124 places, 184 transitions, 1045 flow [2023-11-12 02:27:43,124 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=988, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1045, PETRI_PLACES=124, PETRI_TRANSITIONS=184} [2023-11-12 02:27:43,125 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 35 predicate places. [2023-11-12 02:27:43,125 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 184 transitions, 1045 flow [2023-11-12 02:27:43,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 165.625) internal successors, (1325), 8 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:43,126 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:43,126 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:43,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 02:27:43,126 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-12 02:27:43,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:43,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1433373521, now seen corresponding path program 1 times [2023-11-12 02:27:43,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:43,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455404830] [2023-11-12 02:27:43,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:43,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:43,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 02:27:43,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:43,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455404830] [2023-11-12 02:27:43,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455404830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:43,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:43,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:27:43,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723940854] [2023-11-12 02:27:43,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:43,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:27:43,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:43,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:27:43,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:27:44,171 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 317 [2023-11-12 02:27:44,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 184 transitions, 1045 flow. Second operand has 8 states, 8 states have (on average 162.5) internal successors, (1300), 8 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:44,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:44,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 317 [2023-11-12 02:27:44,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:45,132 INFO L124 PetriNetUnfolderBase]: 1094/2810 cut-off events. [2023-11-12 02:27:45,132 INFO L125 PetriNetUnfolderBase]: For 2215/2280 co-relation queries the response was YES. [2023-11-12 02:27:45,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8429 conditions, 2810 events. 1094/2810 cut-off events. For 2215/2280 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 20595 event pairs, 478 based on Foata normal form. 56/2634 useless extension candidates. Maximal degree in co-relation 8402. Up to 1558 conditions per place. [2023-11-12 02:27:45,165 INFO L140 encePairwiseOnDemand]: 305/317 looper letters, 218 selfloop transitions, 46 changer transitions 0/298 dead transitions. [2023-11-12 02:27:45,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 298 transitions, 2210 flow [2023-11-12 02:27:45,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:27:45,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:27:45,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1271 transitions. [2023-11-12 02:27:45,172 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.572780531771068 [2023-11-12 02:27:45,172 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1271 transitions. [2023-11-12 02:27:45,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1271 transitions. [2023-11-12 02:27:45,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:45,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1271 transitions. [2023-11-12 02:27:45,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 181.57142857142858) internal successors, (1271), 7 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:45,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 317.0) internal successors, (2536), 8 states have internal predecessors, (2536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:45,185 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 317.0) internal successors, (2536), 8 states have internal predecessors, (2536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:45,185 INFO L175 Difference]: Start difference. First operand has 124 places, 184 transitions, 1045 flow. Second operand 7 states and 1271 transitions. [2023-11-12 02:27:45,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 298 transitions, 2210 flow [2023-11-12 02:27:45,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 298 transitions, 2201 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-11-12 02:27:45,227 INFO L231 Difference]: Finished difference. Result has 134 places, 196 transitions, 1304 flow [2023-11-12 02:27:45,227 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=1036, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1304, PETRI_PLACES=134, PETRI_TRANSITIONS=196} [2023-11-12 02:27:45,228 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 45 predicate places. [2023-11-12 02:27:45,228 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 196 transitions, 1304 flow [2023-11-12 02:27:45,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 162.5) internal successors, (1300), 8 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:45,229 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:45,230 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:45,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-12 02:27:45,230 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-12 02:27:45,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:45,231 INFO L85 PathProgramCache]: Analyzing trace with hash 348045638, now seen corresponding path program 1 times [2023-11-12 02:27:45,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:45,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294268728] [2023-11-12 02:27:45,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:45,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:45,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:45,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 02:27:45,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:45,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294268728] [2023-11-12 02:27:45,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294268728] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:45,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:45,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:27:45,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405789735] [2023-11-12 02:27:45,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:45,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:27:45,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:45,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:27:45,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:27:46,000 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 317 [2023-11-12 02:27:46,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 196 transitions, 1304 flow. Second operand has 6 states, 6 states have (on average 176.33333333333334) internal successors, (1058), 6 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:46,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:46,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 317 [2023-11-12 02:27:46,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:46,733 INFO L124 PetriNetUnfolderBase]: 932/2477 cut-off events. [2023-11-12 02:27:46,734 INFO L125 PetriNetUnfolderBase]: For 4068/4129 co-relation queries the response was YES. [2023-11-12 02:27:46,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8015 conditions, 2477 events. 932/2477 cut-off events. For 4068/4129 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 18319 event pairs, 299 based on Foata normal form. 12/2346 useless extension candidates. Maximal degree in co-relation 7983. Up to 1334 conditions per place. [2023-11-12 02:27:46,844 INFO L140 encePairwiseOnDemand]: 306/317 looper letters, 139 selfloop transitions, 47 changer transitions 13/290 dead transitions. [2023-11-12 02:27:46,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 290 transitions, 2252 flow [2023-11-12 02:27:46,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:27:46,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:27:46,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1154 transitions. [2023-11-12 02:27:46,849 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6067297581493165 [2023-11-12 02:27:46,850 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1154 transitions. [2023-11-12 02:27:46,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1154 transitions. [2023-11-12 02:27:46,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:46,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1154 transitions. [2023-11-12 02:27:46,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 192.33333333333334) internal successors, (1154), 6 states have internal predecessors, (1154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:46,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 317.0) internal successors, (2219), 7 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:46,876 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 317.0) internal successors, (2219), 7 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:46,877 INFO L175 Difference]: Start difference. First operand has 134 places, 196 transitions, 1304 flow. Second operand 6 states and 1154 transitions. [2023-11-12 02:27:46,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 290 transitions, 2252 flow [2023-11-12 02:27:46,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 290 transitions, 2197 flow, removed 27 selfloop flow, removed 1 redundant places. [2023-11-12 02:27:46,919 INFO L231 Difference]: Finished difference. Result has 143 places, 228 transitions, 1762 flow [2023-11-12 02:27:46,920 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=1291, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1762, PETRI_PLACES=143, PETRI_TRANSITIONS=228} [2023-11-12 02:27:46,921 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 54 predicate places. [2023-11-12 02:27:46,922 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 228 transitions, 1762 flow [2023-11-12 02:27:46,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 176.33333333333334) internal successors, (1058), 6 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:46,922 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:46,922 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:46,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-12 02:27:46,923 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting threadErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-12 02:27:46,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:46,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1157540917, now seen corresponding path program 1 times [2023-11-12 02:27:46,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:46,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897406487] [2023-11-12 02:27:46,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:46,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:46,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:46,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:46,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897406487] [2023-11-12 02:27:46,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897406487] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:46,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:46,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:27:46,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897516973] [2023-11-12 02:27:46,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:46,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:27:46,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:46,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:27:46,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:27:47,008 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 317 [2023-11-12 02:27:47,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 228 transitions, 1762 flow. Second operand has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:47,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:47,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 317 [2023-11-12 02:27:47,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:47,542 INFO L124 PetriNetUnfolderBase]: 723/2128 cut-off events. [2023-11-12 02:27:47,543 INFO L125 PetriNetUnfolderBase]: For 3338/3420 co-relation queries the response was YES. [2023-11-12 02:27:47,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6840 conditions, 2128 events. 723/2128 cut-off events. For 3338/3420 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 16128 event pairs, 216 based on Foata normal form. 17/2029 useless extension candidates. Maximal degree in co-relation 6804. Up to 916 conditions per place. [2023-11-12 02:27:47,571 INFO L140 encePairwiseOnDemand]: 311/317 looper letters, 58 selfloop transitions, 10 changer transitions 12/246 dead transitions. [2023-11-12 02:27:47,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 246 transitions, 1974 flow [2023-11-12 02:27:47,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:27:47,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:27:47,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 590 transitions. [2023-11-12 02:27:47,575 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6203995793901157 [2023-11-12 02:27:47,575 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 590 transitions. [2023-11-12 02:27:47,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 590 transitions. [2023-11-12 02:27:47,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:47,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 590 transitions. [2023-11-12 02:27:47,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 196.66666666666666) internal successors, (590), 3 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:47,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 317.0) internal successors, (1268), 4 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:47,580 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 317.0) internal successors, (1268), 4 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:47,581 INFO L175 Difference]: Start difference. First operand has 143 places, 228 transitions, 1762 flow. Second operand 3 states and 590 transitions. [2023-11-12 02:27:47,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 246 transitions, 1974 flow [2023-11-12 02:27:47,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 246 transitions, 1934 flow, removed 20 selfloop flow, removed 1 redundant places. [2023-11-12 02:27:47,626 INFO L231 Difference]: Finished difference. Result has 142 places, 224 transitions, 1667 flow [2023-11-12 02:27:47,627 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=1724, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1667, PETRI_PLACES=142, PETRI_TRANSITIONS=224} [2023-11-12 02:27:47,627 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 53 predicate places. [2023-11-12 02:27:47,628 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 224 transitions, 1667 flow [2023-11-12 02:27:47,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:47,628 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:47,628 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:47,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-12 02:27:47,629 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-12 02:27:47,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:47,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1321738509, now seen corresponding path program 1 times [2023-11-12 02:27:47,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:47,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629772640] [2023-11-12 02:27:47,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:47,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:47,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:47,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 02:27:47,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:47,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629772640] [2023-11-12 02:27:47,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629772640] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:47,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:47,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:27:47,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201161456] [2023-11-12 02:27:47,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:47,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:27:47,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:47,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:27:47,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:27:47,772 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 317 [2023-11-12 02:27:47,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 224 transitions, 1667 flow. Second operand has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:47,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:47,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 317 [2023-11-12 02:27:47,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:48,171 INFO L124 PetriNetUnfolderBase]: 442/1495 cut-off events. [2023-11-12 02:27:48,172 INFO L125 PetriNetUnfolderBase]: For 2973/2996 co-relation queries the response was YES. [2023-11-12 02:27:48,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5211 conditions, 1495 events. 442/1495 cut-off events. For 2973/2996 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 10768 event pairs, 47 based on Foata normal form. 30/1474 useless extension candidates. Maximal degree in co-relation 5174. Up to 374 conditions per place. [2023-11-12 02:27:48,190 INFO L140 encePairwiseOnDemand]: 313/317 looper letters, 37 selfloop transitions, 7 changer transitions 1/208 dead transitions. [2023-11-12 02:27:48,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 208 transitions, 1642 flow [2023-11-12 02:27:48,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:27:48,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:27:48,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 594 transitions. [2023-11-12 02:27:48,193 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6246056782334385 [2023-11-12 02:27:48,193 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 594 transitions. [2023-11-12 02:27:48,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 594 transitions. [2023-11-12 02:27:48,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:48,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 594 transitions. [2023-11-12 02:27:48,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:48,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 317.0) internal successors, (1268), 4 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:48,200 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 317.0) internal successors, (1268), 4 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:48,200 INFO L175 Difference]: Start difference. First operand has 142 places, 224 transitions, 1667 flow. Second operand 3 states and 594 transitions. [2023-11-12 02:27:48,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 208 transitions, 1642 flow [2023-11-12 02:27:48,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 208 transitions, 1602 flow, removed 11 selfloop flow, removed 7 redundant places. [2023-11-12 02:27:48,244 INFO L231 Difference]: Finished difference. Result has 132 places, 200 transitions, 1503 flow [2023-11-12 02:27:48,245 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=1489, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1503, PETRI_PLACES=132, PETRI_TRANSITIONS=200} [2023-11-12 02:27:48,245 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 43 predicate places. [2023-11-12 02:27:48,245 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 200 transitions, 1503 flow [2023-11-12 02:27:48,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:48,246 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:48,246 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:48,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-12 02:27:48,246 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-12 02:27:48,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:48,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1805494964, now seen corresponding path program 1 times [2023-11-12 02:27:48,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:48,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826291613] [2023-11-12 02:27:48,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:48,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:48,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:49,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:49,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826291613] [2023-11-12 02:27:49,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826291613] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:27:49,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762099723] [2023-11-12 02:27:49,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:49,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:27:49,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:27:49,345 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:27:49,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:27:49,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:49,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-12 02:27:49,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:27:49,560 INFO L322 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-12 02:27:49,561 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 27 [2023-11-12 02:27:49,775 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-12 02:27:49,776 INFO L351 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2023-11-12 02:27:49,828 INFO L351 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 25 treesize of output 18 [2023-11-12 02:27:49,843 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 24 treesize of output 12 [2023-11-12 02:27:49,862 INFO L351 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 [2023-11-12 02:27:49,874 INFO L351 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 [2023-11-12 02:27:49,894 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:27:49,895 INFO L351 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 [2023-11-12 02:27:49,920 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:27:49,921 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-11-12 02:27:49,971 INFO L351 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 56 treesize of output 45 [2023-11-12 02:27:49,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 02:27:49,984 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:27:49,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762099723] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:49,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:27:49,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 11 [2023-11-12 02:27:49,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214660639] [2023-11-12 02:27:49,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:49,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 02:27:49,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:49,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 02:27:49,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:27:50,429 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 317 [2023-11-12 02:27:50,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 200 transitions, 1503 flow. Second operand has 10 states, 10 states have (on average 157.3) internal successors, (1573), 10 states have internal predecessors, (1573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:50,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:50,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 317 [2023-11-12 02:27:50,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:51,536 INFO L124 PetriNetUnfolderBase]: 976/2510 cut-off events. [2023-11-12 02:27:51,537 INFO L125 PetriNetUnfolderBase]: For 5915/5927 co-relation queries the response was YES. [2023-11-12 02:27:51,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9279 conditions, 2510 events. 976/2510 cut-off events. For 5915/5927 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 17838 event pairs, 291 based on Foata normal form. 19/2411 useless extension candidates. Maximal degree in co-relation 9245. Up to 703 conditions per place. [2023-11-12 02:27:51,570 INFO L140 encePairwiseOnDemand]: 306/317 looper letters, 269 selfloop transitions, 69 changer transitions 10/375 dead transitions. [2023-11-12 02:27:51,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 375 transitions, 3547 flow [2023-11-12 02:27:51,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-12 02:27:51,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-12 02:27:51,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1831 transitions. [2023-11-12 02:27:51,578 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5250932033266418 [2023-11-12 02:27:51,578 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1831 transitions. [2023-11-12 02:27:51,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1831 transitions. [2023-11-12 02:27:51,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:51,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1831 transitions. [2023-11-12 02:27:51,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 166.45454545454547) internal successors, (1831), 11 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:51,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 317.0) internal successors, (3804), 12 states have internal predecessors, (3804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:51,594 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 317.0) internal successors, (3804), 12 states have internal predecessors, (3804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:51,594 INFO L175 Difference]: Start difference. First operand has 132 places, 200 transitions, 1503 flow. Second operand 11 states and 1831 transitions. [2023-11-12 02:27:51,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 375 transitions, 3547 flow [2023-11-12 02:27:51,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 375 transitions, 3533 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:27:51,659 INFO L231 Difference]: Finished difference. Result has 146 places, 250 transitions, 2313 flow [2023-11-12 02:27:51,659 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=1496, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2313, PETRI_PLACES=146, PETRI_TRANSITIONS=250} [2023-11-12 02:27:51,660 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 57 predicate places. [2023-11-12 02:27:51,660 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 250 transitions, 2313 flow [2023-11-12 02:27:51,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 157.3) internal successors, (1573), 10 states have internal predecessors, (1573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:51,661 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:51,661 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:51,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:27:51,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-12 02:27:51,867 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-12 02:27:51,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:51,868 INFO L85 PathProgramCache]: Analyzing trace with hash -738301002, now seen corresponding path program 2 times [2023-11-12 02:27:51,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:51,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177730760] [2023-11-12 02:27:51,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:51,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:52,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:52,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:52,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177730760] [2023-11-12 02:27:52,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177730760] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:27:52,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539667429] [2023-11-12 02:27:52,938 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:27:52,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:27:52,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:27:52,941 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:27:52,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:27:53,113 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 02:27:53,113 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:27:53,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-12 02:27:53,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:27:53,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:27:53,141 INFO L351 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 [2023-11-12 02:27:53,402 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-12 02:27:53,402 INFO L351 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 [2023-11-12 02:27:53,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:27:53,446 INFO L351 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 26 treesize of output 19 [2023-11-12 02:27:53,460 INFO L351 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 [2023-11-12 02:27:53,513 INFO L351 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 [2023-11-12 02:27:53,579 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:27:53,580 INFO L351 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 [2023-11-12 02:27:53,712 INFO L351 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 [2023-11-12 02:27:53,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:27:53,779 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 35 [2023-11-12 02:27:53,825 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:27:53,826 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-11-12 02:27:53,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:27:53,912 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-11-12 02:27:53,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:27:53,970 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-11-12 02:27:54,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:27:54,006 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-11-12 02:27:54,069 INFO L351 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 56 treesize of output 45 [2023-11-12 02:27:54,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:54,083 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:27:54,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539667429] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:54,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:27:54,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 17 [2023-11-12 02:27:54,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077010875] [2023-11-12 02:27:54,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:54,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:27:54,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:54,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:27:54,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2023-11-12 02:27:54,793 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 317 [2023-11-12 02:27:54,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 250 transitions, 2313 flow. Second operand has 11 states, 11 states have (on average 157.0) internal successors, (1727), 11 states have internal predecessors, (1727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:54,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:54,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 317 [2023-11-12 02:27:54,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:27:56,626 INFO L124 PetriNetUnfolderBase]: 1024/2609 cut-off events. [2023-11-12 02:27:56,626 INFO L125 PetriNetUnfolderBase]: For 8352/8368 co-relation queries the response was YES. [2023-11-12 02:27:56,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10791 conditions, 2609 events. 1024/2609 cut-off events. For 8352/8368 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 18650 event pairs, 255 based on Foata normal form. 19/2498 useless extension candidates. Maximal degree in co-relation 10751. Up to 864 conditions per place. [2023-11-12 02:27:56,653 INFO L140 encePairwiseOnDemand]: 302/317 looper letters, 262 selfloop transitions, 105 changer transitions 33/427 dead transitions. [2023-11-12 02:27:56,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 427 transitions, 4331 flow [2023-11-12 02:27:56,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-12 02:27:56,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-12 02:27:56,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2353 transitions. [2023-11-12 02:27:56,663 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5301937809824245 [2023-11-12 02:27:56,663 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2353 transitions. [2023-11-12 02:27:56,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2353 transitions. [2023-11-12 02:27:56,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:27:56,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2353 transitions. [2023-11-12 02:27:56,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 168.07142857142858) internal successors, (2353), 14 states have internal predecessors, (2353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:56,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 317.0) internal successors, (4755), 15 states have internal predecessors, (4755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:56,681 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 317.0) internal successors, (4755), 15 states have internal predecessors, (4755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:56,682 INFO L175 Difference]: Start difference. First operand has 146 places, 250 transitions, 2313 flow. Second operand 14 states and 2353 transitions. [2023-11-12 02:27:56,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 427 transitions, 4331 flow [2023-11-12 02:27:56,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 427 transitions, 4330 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:27:56,778 INFO L231 Difference]: Finished difference. Result has 163 places, 280 transitions, 2955 flow [2023-11-12 02:27:56,779 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=2312, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2955, PETRI_PLACES=163, PETRI_TRANSITIONS=280} [2023-11-12 02:27:56,779 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 74 predicate places. [2023-11-12 02:27:56,779 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 280 transitions, 2955 flow [2023-11-12 02:27:56,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 157.0) internal successors, (1727), 11 states have internal predecessors, (1727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:56,780 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:27:56,780 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:56,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:27:56,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-12 02:27:56,986 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-12 02:27:56,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:56,987 INFO L85 PathProgramCache]: Analyzing trace with hash -99406540, now seen corresponding path program 1 times [2023-11-12 02:27:56,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:56,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751293283] [2023-11-12 02:27:56,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:56,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:57,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:57,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:57,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:57,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751293283] [2023-11-12 02:27:57,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751293283] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:27:57,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78272014] [2023-11-12 02:27:57,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:57,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:27:57,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:27:57,728 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:27:57,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:27:57,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:57,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-12 02:27:57,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:27:57,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:27:57,910 INFO L322 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-12 02:27:57,910 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 23 [2023-11-12 02:27:58,131 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-12 02:27:58,131 INFO L351 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 33 treesize of output 32 [2023-11-12 02:27:58,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:27:58,165 INFO L351 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 25 treesize of output 18 [2023-11-12 02:27:58,191 INFO L351 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 24 treesize of output 12 [2023-11-12 02:27:58,206 INFO L351 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 [2023-11-12 02:27:58,217 INFO L351 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 [2023-11-12 02:27:58,234 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:27:58,235 INFO L351 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 [2023-11-12 02:27:58,259 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:27:58,260 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-11-12 02:27:58,284 INFO L351 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 56 treesize of output 45 [2023-11-12 02:27:58,296 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 02:27:58,297 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:27:58,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78272014] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:58,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:27:58,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 12 [2023-11-12 02:27:58,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623252522] [2023-11-12 02:27:58,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:58,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 02:27:58,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:58,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 02:27:58,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:27:59,086 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 317 [2023-11-12 02:27:59,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 280 transitions, 2955 flow. Second operand has 10 states, 10 states have (on average 168.5) internal successors, (1685), 10 states have internal predecessors, (1685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:27:59,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:27:59,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 317 [2023-11-12 02:27:59,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:28:00,295 INFO L124 PetriNetUnfolderBase]: 779/2121 cut-off events. [2023-11-12 02:28:00,296 INFO L125 PetriNetUnfolderBase]: For 9850/9896 co-relation queries the response was YES. [2023-11-12 02:28:00,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9356 conditions, 2121 events. 779/2121 cut-off events. For 9850/9896 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 15298 event pairs, 138 based on Foata normal form. 25/2042 useless extension candidates. Maximal degree in co-relation 9311. Up to 428 conditions per place. [2023-11-12 02:28:00,327 INFO L140 encePairwiseOnDemand]: 308/317 looper letters, 137 selfloop transitions, 24 changer transitions 172/400 dead transitions. [2023-11-12 02:28:00,327 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 400 transitions, 4600 flow [2023-11-12 02:28:00,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:28:00,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-12 02:28:00,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1636 transitions. [2023-11-12 02:28:00,336 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5734314756396776 [2023-11-12 02:28:00,336 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1636 transitions. [2023-11-12 02:28:00,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1636 transitions. [2023-11-12 02:28:00,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:28:00,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1636 transitions. [2023-11-12 02:28:00,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 181.77777777777777) internal successors, (1636), 9 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:00,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 317.0) internal successors, (3170), 10 states have internal predecessors, (3170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:00,351 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 317.0) internal successors, (3170), 10 states have internal predecessors, (3170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:00,351 INFO L175 Difference]: Start difference. First operand has 163 places, 280 transitions, 2955 flow. Second operand 9 states and 1636 transitions. [2023-11-12 02:28:00,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 400 transitions, 4600 flow [2023-11-12 02:28:00,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 400 transitions, 4399 flow, removed 30 selfloop flow, removed 4 redundant places. [2023-11-12 02:28:00,451 INFO L231 Difference]: Finished difference. Result has 166 places, 196 transitions, 1724 flow [2023-11-12 02:28:00,452 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=2786, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1724, PETRI_PLACES=166, PETRI_TRANSITIONS=196} [2023-11-12 02:28:00,452 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 77 predicate places. [2023-11-12 02:28:00,453 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 196 transitions, 1724 flow [2023-11-12 02:28:00,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 168.5) internal successors, (1685), 10 states have internal predecessors, (1685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:00,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:28:00,454 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:00,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:28:00,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-12 02:28:00,661 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-12 02:28:00,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:00,661 INFO L85 PathProgramCache]: Analyzing trace with hash 255394818, now seen corresponding path program 3 times [2023-11-12 02:28:00,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:00,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054672269] [2023-11-12 02:28:00,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:00,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:01,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:01,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:01,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054672269] [2023-11-12 02:28:01,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054672269] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:28:01,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304613111] [2023-11-12 02:28:01,564 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 02:28:01,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:28:01,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:01,569 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:28:01,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:28:01,837 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-12 02:28:01,838 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:28:01,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-12 02:28:01,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:28:01,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:28:01,858 INFO L351 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 [2023-11-12 02:28:02,065 INFO L322 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2023-11-12 02:28:02,065 INFO L351 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 24 [2023-11-12 02:28:02,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:28:02,102 INFO L351 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 26 treesize of output 19 [2023-11-12 02:28:02,125 INFO L351 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 [2023-11-12 02:28:02,167 INFO L351 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 [2023-11-12 02:28:02,223 INFO L351 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 [2023-11-12 02:28:02,275 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:28:02,280 INFO L351 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 [2023-11-12 02:28:02,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:28:02,340 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 35 [2023-11-12 02:28:02,389 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:28:02,389 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-11-12 02:28:02,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:28:02,468 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-11-12 02:28:02,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:28:02,503 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-11-12 02:28:02,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:28:02,540 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-11-12 02:28:02,610 INFO L351 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 56 treesize of output 45 [2023-11-12 02:28:02,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 02:28:02,621 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:28:02,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304613111] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:02,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:28:02,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 17 [2023-11-12 02:28:02,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122777964] [2023-11-12 02:28:02,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:02,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:28:02,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:02,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:28:02,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2023-11-12 02:28:03,267 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 317 [2023-11-12 02:28:03,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 196 transitions, 1724 flow. Second operand has 11 states, 11 states have (on average 157.0) internal successors, (1727), 11 states have internal predecessors, (1727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:03,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:28:03,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 317 [2023-11-12 02:28:03,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:28:04,435 INFO L124 PetriNetUnfolderBase]: 735/1991 cut-off events. [2023-11-12 02:28:04,435 INFO L125 PetriNetUnfolderBase]: For 6459/6467 co-relation queries the response was YES. [2023-11-12 02:28:04,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8307 conditions, 1991 events. 735/1991 cut-off events. For 6459/6467 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 13671 event pairs, 187 based on Foata normal form. 16/1909 useless extension candidates. Maximal degree in co-relation 8262. Up to 483 conditions per place. [2023-11-12 02:28:04,461 INFO L140 encePairwiseOnDemand]: 305/317 looper letters, 199 selfloop transitions, 42 changer transitions 75/342 dead transitions. [2023-11-12 02:28:04,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 342 transitions, 3472 flow [2023-11-12 02:28:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-12 02:28:04,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-12 02:28:04,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2168 transitions. [2023-11-12 02:28:04,468 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5260859014802233 [2023-11-12 02:28:04,468 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2168 transitions. [2023-11-12 02:28:04,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2168 transitions. [2023-11-12 02:28:04,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:28:04,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2168 transitions. [2023-11-12 02:28:04,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 166.76923076923077) internal successors, (2168), 13 states have internal predecessors, (2168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:04,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 317.0) internal successors, (4438), 14 states have internal predecessors, (4438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:04,484 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 317.0) internal successors, (4438), 14 states have internal predecessors, (4438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:04,484 INFO L175 Difference]: Start difference. First operand has 166 places, 196 transitions, 1724 flow. Second operand 13 states and 2168 transitions. [2023-11-12 02:28:04,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 342 transitions, 3472 flow [2023-11-12 02:28:04,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 342 transitions, 3202 flow, removed 48 selfloop flow, removed 13 redundant places. [2023-11-12 02:28:04,560 INFO L231 Difference]: Finished difference. Result has 167 places, 195 transitions, 1711 flow [2023-11-12 02:28:04,561 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=317, PETRI_DIFFERENCE_MINUEND_FLOW=1561, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1711, PETRI_PLACES=167, PETRI_TRANSITIONS=195} [2023-11-12 02:28:04,561 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, 78 predicate places. [2023-11-12 02:28:04,562 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 195 transitions, 1711 flow [2023-11-12 02:28:04,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 157.0) internal successors, (1727), 11 states have internal predecessors, (1727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:28:04,562 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:28:04,563 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:28:04,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:28:04,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:28:04,769 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-12 02:28:04,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:04,769 INFO L85 PathProgramCache]: Analyzing trace with hash 162249516, now seen corresponding path program 4 times [2023-11-12 02:28:04,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:04,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81956567] [2023-11-12 02:28:04,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:04,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:05,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:28:05,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:05,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81956567] [2023-11-12 02:28:05,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81956567] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:28:05,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291378608] [2023-11-12 02:28:05,604 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-12 02:28:05,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:28:05,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:05,606 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:28:05,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3585b22-40e8-4407-9695-9e2f76f11156/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 02:28:05,992 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-12 02:28:05,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:28:05,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-12 02:28:06,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:28:06,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:28:06,021 INFO L351 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 14 treesize of output 12 [2023-11-12 02:28:06,258 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-12 02:28:06,259 INFO L351 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 [2023-11-12 02:28:06,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:28:06,305 INFO L351 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 26 treesize of output 19 [2023-11-12 02:28:06,333 INFO L351 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 [2023-11-12 02:28:06,377 INFO L351 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 [2023-11-12 02:28:06,421 INFO L351 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 [2023-11-12 02:28:06,474 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:28:06,475 INFO L351 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 [2023-11-12 02:28:06,571 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:28:06,572 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-11-12 02:28:06,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:28:06,646 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-11-12 02:28:06,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:28:06,673 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-11-12 02:28:06,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:28:06,708 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-11-12 02:28:06,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:28:06,737 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-11-12 02:28:06,786 INFO L351 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 56 treesize of output 45 [2023-11-12 02:28:06,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 02:28:06,798 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:28:06,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291378608] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:06,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:28:06,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 17 [2023-11-12 02:28:06,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419649774] [2023-11-12 02:28:06,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:06,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:28:06,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:06,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:28:06,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342