./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff 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_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f36f5593156fc25b34b4c706b0d898a2d66ee8bab5f6d91cd69ff9cf3c129193 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:50:12,670 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:50:12,764 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:50:12,780 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:50:12,782 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:50:12,823 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:50:12,827 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:50:12,828 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:50:12,830 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:50:12,835 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:50:12,836 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:50:12,837 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:50:12,837 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:50:12,839 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:50:12,840 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:50:12,840 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:50:12,841 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:50:12,841 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:50:12,841 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:50:12,842 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:50:12,842 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:50:12,843 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:50:12,843 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:50:12,844 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:50:12,844 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:50:12,845 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:50:12,845 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:50:12,846 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:50:12,846 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:50:12,846 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:50:12,848 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:50:12,848 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:50:12,849 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:50:12,849 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:50:12,849 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:50:12,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:50:12,849 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:50:12,850 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:50:12,850 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:50:12,850 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:50:12,850 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:50:12,851 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_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f36f5593156fc25b34b4c706b0d898a2d66ee8bab5f6d91cd69ff9cf3c129193 [2023-11-19 07:50:13,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:50:13,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:50:13,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:50:13,213 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:50:13,214 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:50:13,215 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c [2023-11-19 07:50:16,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:50:16,624 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:50:16,624 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c [2023-11-19 07:50:16,633 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/data/036fe1b49/f6ad62b2992c4be9b6df7811d7b423a9/FLAGb6de54424 [2023-11-19 07:50:16,648 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/data/036fe1b49/f6ad62b2992c4be9b6df7811d7b423a9 [2023-11-19 07:50:16,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:50:16,652 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:50:16,660 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:50:16,660 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:50:16,666 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:50:16,666 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:50:16" (1/1) ... [2023-11-19 07:50:16,667 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25eea778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:16, skipping insertion in model container [2023-11-19 07:50:16,668 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:50:16" (1/1) ... [2023-11-19 07:50:16,699 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:50:16,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:50:16,925 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:50:16,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:50:16,991 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:50:16,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:16 WrapperNode [2023-11-19 07:50:16,991 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:50:16,992 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:50:16,993 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:50:16,993 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:50:17,001 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:16" (1/1) ... [2023-11-19 07:50:17,018 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:16" (1/1) ... [2023-11-19 07:50:17,074 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 17, calls inlined = 25, statements flattened = 472 [2023-11-19 07:50:17,075 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:50:17,076 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:50:17,076 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:50:17,076 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:50:17,088 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:16" (1/1) ... [2023-11-19 07:50:17,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:16" (1/1) ... [2023-11-19 07:50:17,097 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:16" (1/1) ... [2023-11-19 07:50:17,097 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:16" (1/1) ... [2023-11-19 07:50:17,123 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:16" (1/1) ... [2023-11-19 07:50:17,130 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:16" (1/1) ... [2023-11-19 07:50:17,134 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:16" (1/1) ... [2023-11-19 07:50:17,138 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:16" (1/1) ... [2023-11-19 07:50:17,144 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:50:17,145 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:50:17,145 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:50:17,146 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:50:17,147 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:16" (1/1) ... [2023-11-19 07:50:17,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:50:17,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:17,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:50:17,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:50:17,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:50:17,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:50:17,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:50:17,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:50:17,246 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 07:50:17,246 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 07:50:17,246 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 07:50:17,247 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 07:50:17,247 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 07:50:17,247 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 07:50:17,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:50:17,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:50:17,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:50:17,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:50:17,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:50:17,252 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:50:17,427 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:50:17,430 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:50:18,285 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:50:18,301 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:50:18,301 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-19 07:50:18,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:50:18 BoogieIcfgContainer [2023-11-19 07:50:18,309 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:50:18,317 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:50:18,318 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:50:18,322 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:50:18,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:50:16" (1/3) ... [2023-11-19 07:50:18,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609f51eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:50:18, skipping insertion in model container [2023-11-19 07:50:18,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:16" (2/3) ... [2023-11-19 07:50:18,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609f51eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:50:18, skipping insertion in model container [2023-11-19 07:50:18,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:50:18" (3/3) ... [2023-11-19 07:50:18,328 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-trans.wvr.c [2023-11-19 07:50:18,338 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:50:18,350 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:50:18,350 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2023-11-19 07:50:18,350 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:50:18,635 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-19 07:50:18,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 584 places, 607 transitions, 1235 flow [2023-11-19 07:50:19,071 INFO L124 PetriNetUnfolderBase]: 33/604 cut-off events. [2023-11-19 07:50:19,071 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:50:19,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 604 events. 33/604 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1331 event pairs, 0 based on Foata normal form. 0/523 useless extension candidates. Maximal degree in co-relation 433. Up to 2 conditions per place. [2023-11-19 07:50:19,092 INFO L82 GeneralOperation]: Start removeDead. Operand has 584 places, 607 transitions, 1235 flow [2023-11-19 07:50:19,113 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 556 places, 577 transitions, 1172 flow [2023-11-19 07:50:19,118 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:50:19,140 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 556 places, 577 transitions, 1172 flow [2023-11-19 07:50:19,145 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 556 places, 577 transitions, 1172 flow [2023-11-19 07:50:19,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 556 places, 577 transitions, 1172 flow [2023-11-19 07:50:19,367 INFO L124 PetriNetUnfolderBase]: 31/577 cut-off events. [2023-11-19 07:50:19,367 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:50:19,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 590 conditions, 577 events. 31/577 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1318 event pairs, 0 based on Foata normal form. 0/499 useless extension candidates. Maximal degree in co-relation 433. Up to 2 conditions per place. [2023-11-19 07:50:19,418 INFO L119 LiptonReduction]: Number of co-enabled transitions 79872 [2023-11-19 07:50:34,761 INFO L134 LiptonReduction]: Checked pairs total: 215639 [2023-11-19 07:50:34,761 INFO L136 LiptonReduction]: Total number of compositions: 581 [2023-11-19 07:50:34,779 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:50:34,786 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;@6e920df3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:50:34,787 INFO L358 AbstractCegarLoop]: Starting to check reachability of 84 error locations. [2023-11-19 07:50:34,790 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:50:34,790 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-11-19 07:50:34,790 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:50:34,790 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:34,791 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-19 07:50:34,792 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-19 07:50:34,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:34,797 INFO L85 PathProgramCache]: Analyzing trace with hash 72880, now seen corresponding path program 1 times [2023-11-19 07:50:34,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:34,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576910607] [2023-11-19 07:50:34,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:34,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:34,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:34,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:34,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576910607] [2023-11-19 07:50:34,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576910607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:34,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:34,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:50:34,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878731485] [2023-11-19 07:50:34,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:34,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:50:34,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:35,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:50:35,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:50:35,025 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 578 out of 1188 [2023-11-19 07:50:35,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 151 transitions, 320 flow. Second operand has 2 states, 2 states have (on average 579.0) internal successors, (1158), 2 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:35,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:35,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 578 of 1188 [2023-11-19 07:50:35,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:36,635 INFO L124 PetriNetUnfolderBase]: 3816/9993 cut-off events. [2023-11-19 07:50:36,636 INFO L125 PetriNetUnfolderBase]: For 386/571 co-relation queries the response was YES. [2023-11-19 07:50:36,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15660 conditions, 9993 events. 3816/9993 cut-off events. For 386/571 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 94570 event pairs, 3293 based on Foata normal form. 309/8833 useless extension candidates. Maximal degree in co-relation 13865. Up to 5426 conditions per place. [2023-11-19 07:50:36,757 INFO L140 encePairwiseOnDemand]: 1155/1188 looper letters, 43 selfloop transitions, 0 changer transitions 1/115 dead transitions. [2023-11-19 07:50:36,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 115 transitions, 336 flow [2023-11-19 07:50:36,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:50:36,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:50:36,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1233 transitions. [2023-11-19 07:50:36,783 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5189393939393939 [2023-11-19 07:50:36,784 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1233 transitions. [2023-11-19 07:50:36,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1233 transitions. [2023-11-19 07:50:36,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:36,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1233 transitions. [2023-11-19 07:50:36,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 616.5) internal successors, (1233), 2 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:36,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1188.0) internal successors, (3564), 3 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:36,820 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1188.0) internal successors, (3564), 3 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:36,822 INFO L175 Difference]: Start difference. First operand has 149 places, 151 transitions, 320 flow. Second operand 2 states and 1233 transitions. [2023-11-19 07:50:36,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 115 transitions, 336 flow [2023-11-19 07:50:36,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 115 transitions, 324 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-19 07:50:36,835 INFO L231 Difference]: Finished difference. Result has 114 places, 114 transitions, 233 flow [2023-11-19 07:50:36,838 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1188, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=233, PETRI_PLACES=114, PETRI_TRANSITIONS=114} [2023-11-19 07:50:36,843 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -35 predicate places. [2023-11-19 07:50:36,843 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 114 transitions, 233 flow [2023-11-19 07:50:36,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 579.0) internal successors, (1158), 2 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:36,845 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:36,845 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:36,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:50:36,846 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-19 07:50:36,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:36,848 INFO L85 PathProgramCache]: Analyzing trace with hash -514786343, now seen corresponding path program 1 times [2023-11-19 07:50:36,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:36,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668690698] [2023-11-19 07:50:36,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:36,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:36,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:37,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:37,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:37,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668690698] [2023-11-19 07:50:37,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668690698] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:37,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:37,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:50:37,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594935469] [2023-11-19 07:50:37,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:37,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:50:37,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:37,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:50:37,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:50:37,268 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 560 out of 1188 [2023-11-19 07:50:37,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 114 transitions, 233 flow. Second operand has 3 states, 3 states have (on average 562.0) internal successors, (1686), 3 states have internal predecessors, (1686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:37,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:37,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 560 of 1188 [2023-11-19 07:50:37,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:38,722 INFO L124 PetriNetUnfolderBase]: 3816/9995 cut-off events. [2023-11-19 07:50:38,722 INFO L125 PetriNetUnfolderBase]: For 90/275 co-relation queries the response was YES. [2023-11-19 07:50:38,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15498 conditions, 9995 events. 3816/9995 cut-off events. For 90/275 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 94565 event pairs, 3293 based on Foata normal form. 0/8526 useless extension candidates. Maximal degree in co-relation 15495. Up to 5425 conditions per place. [2023-11-19 07:50:38,802 INFO L140 encePairwiseOnDemand]: 1181/1188 looper letters, 40 selfloop transitions, 6 changer transitions 0/117 dead transitions. [2023-11-19 07:50:38,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 117 transitions, 331 flow [2023-11-19 07:50:38,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:50:38,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:50:38,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1729 transitions. [2023-11-19 07:50:38,809 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4851290684624018 [2023-11-19 07:50:38,810 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1729 transitions. [2023-11-19 07:50:38,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1729 transitions. [2023-11-19 07:50:38,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:38,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1729 transitions. [2023-11-19 07:50:38,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 576.3333333333334) internal successors, (1729), 3 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:38,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1188.0) internal successors, (4752), 4 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:38,831 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1188.0) internal successors, (4752), 4 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:38,831 INFO L175 Difference]: Start difference. First operand has 114 places, 114 transitions, 233 flow. Second operand 3 states and 1729 transitions. [2023-11-19 07:50:38,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 117 transitions, 331 flow [2023-11-19 07:50:38,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 117 transitions, 331 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:50:38,836 INFO L231 Difference]: Finished difference. Result has 116 places, 117 transitions, 265 flow [2023-11-19 07:50:38,836 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1188, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=265, PETRI_PLACES=116, PETRI_TRANSITIONS=117} [2023-11-19 07:50:38,837 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -33 predicate places. [2023-11-19 07:50:38,838 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 117 transitions, 265 flow [2023-11-19 07:50:38,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 562.0) internal successors, (1686), 3 states have internal predecessors, (1686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:38,839 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:38,840 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:38,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:50:38,840 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-19 07:50:38,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:38,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1929092945, now seen corresponding path program 1 times [2023-11-19 07:50:38,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:38,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884520053] [2023-11-19 07:50:38,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:38,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:38,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:38,914 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:50:38,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:38,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884520053] [2023-11-19 07:50:38,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884520053] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:38,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:38,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:50:38,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987510227] [2023-11-19 07:50:38,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:38,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:50:38,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:38,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:50:38,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:50:38,932 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 571 out of 1188 [2023-11-19 07:50:38,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 117 transitions, 265 flow. Second operand has 3 states, 3 states have (on average 574.3333333333334) internal successors, (1723), 3 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:38,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:38,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 571 of 1188 [2023-11-19 07:50:38,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:40,272 INFO L124 PetriNetUnfolderBase]: 3816/8536 cut-off events. [2023-11-19 07:50:40,273 INFO L125 PetriNetUnfolderBase]: For 82/82 co-relation queries the response was YES. [2023-11-19 07:50:40,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14054 conditions, 8536 events. 3816/8536 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 368. Compared 71888 event pairs, 1233 based on Foata normal form. 0/7279 useless extension candidates. Maximal degree in co-relation 14049. Up to 5358 conditions per place. [2023-11-19 07:50:40,347 INFO L140 encePairwiseOnDemand]: 1184/1188 looper letters, 59 selfloop transitions, 2 changer transitions 0/130 dead transitions. [2023-11-19 07:50:40,347 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 130 transitions, 415 flow [2023-11-19 07:50:40,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:50:40,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:50:40,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1773 transitions. [2023-11-19 07:50:40,355 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49747474747474746 [2023-11-19 07:50:40,355 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1773 transitions. [2023-11-19 07:50:40,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1773 transitions. [2023-11-19 07:50:40,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:40,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1773 transitions. [2023-11-19 07:50:40,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 591.0) internal successors, (1773), 3 states have internal predecessors, (1773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:40,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1188.0) internal successors, (4752), 4 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:40,379 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1188.0) internal successors, (4752), 4 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:40,379 INFO L175 Difference]: Start difference. First operand has 116 places, 117 transitions, 265 flow. Second operand 3 states and 1773 transitions. [2023-11-19 07:50:40,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 130 transitions, 415 flow [2023-11-19 07:50:40,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 130 transitions, 409 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:50:40,384 INFO L231 Difference]: Finished difference. Result has 116 places, 117 transitions, 269 flow [2023-11-19 07:50:40,385 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1188, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=269, PETRI_PLACES=116, PETRI_TRANSITIONS=117} [2023-11-19 07:50:40,386 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -33 predicate places. [2023-11-19 07:50:40,386 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 117 transitions, 269 flow [2023-11-19 07:50:40,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 574.3333333333334) internal successors, (1723), 3 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:40,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:40,388 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:40,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:50:40,389 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-19 07:50:40,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:40,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1575560891, now seen corresponding path program 1 times [2023-11-19 07:50:40,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:40,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315503554] [2023-11-19 07:50:40,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:40,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:40,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:40,469 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:50:40,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:40,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315503554] [2023-11-19 07:50:40,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315503554] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:40,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:40,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:50:40,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434806909] [2023-11-19 07:50:40,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:40,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:50:40,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:40,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:50:40,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:50:40,488 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 571 out of 1188 [2023-11-19 07:50:40,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 117 transitions, 269 flow. Second operand has 3 states, 3 states have (on average 575.0) internal successors, (1725), 3 states have internal predecessors, (1725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:40,492 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:40,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 571 of 1188 [2023-11-19 07:50:40,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:41,846 INFO L124 PetriNetUnfolderBase]: 3816/10868 cut-off events. [2023-11-19 07:50:41,846 INFO L125 PetriNetUnfolderBase]: For 371/479 co-relation queries the response was YES. [2023-11-19 07:50:41,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16757 conditions, 10868 events. 3816/10868 cut-off events. For 371/479 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 110253 event pairs, 1099 based on Foata normal form. 1/9239 useless extension candidates. Maximal degree in co-relation 16752. Up to 5266 conditions per place. [2023-11-19 07:50:41,944 INFO L140 encePairwiseOnDemand]: 1184/1188 looper letters, 67 selfloop transitions, 2 changer transitions 0/136 dead transitions. [2023-11-19 07:50:41,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 136 transitions, 457 flow [2023-11-19 07:50:41,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:50:41,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:50:41,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1777 transitions. [2023-11-19 07:50:41,952 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49859708193041524 [2023-11-19 07:50:41,952 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1777 transitions. [2023-11-19 07:50:41,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1777 transitions. [2023-11-19 07:50:41,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:41,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1777 transitions. [2023-11-19 07:50:41,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 592.3333333333334) internal successors, (1777), 3 states have internal predecessors, (1777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:41,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1188.0) internal successors, (4752), 4 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:41,975 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1188.0) internal successors, (4752), 4 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:41,975 INFO L175 Difference]: Start difference. First operand has 116 places, 117 transitions, 269 flow. Second operand 3 states and 1777 transitions. [2023-11-19 07:50:41,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 136 transitions, 457 flow [2023-11-19 07:50:41,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 136 transitions, 457 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:50:41,980 INFO L231 Difference]: Finished difference. Result has 117 places, 117 transitions, 279 flow [2023-11-19 07:50:41,980 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1188, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=279, PETRI_PLACES=117, PETRI_TRANSITIONS=117} [2023-11-19 07:50:41,981 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -32 predicate places. [2023-11-19 07:50:41,982 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 117 transitions, 279 flow [2023-11-19 07:50:41,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 575.0) internal successors, (1725), 3 states have internal predecessors, (1725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:41,983 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:41,984 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:41,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:50:41,984 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-19 07:50:41,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:41,985 INFO L85 PathProgramCache]: Analyzing trace with hash -2008866125, now seen corresponding path program 1 times [2023-11-19 07:50:41,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:41,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686649022] [2023-11-19 07:50:41,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:41,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:42,079 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:50:42,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:42,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686649022] [2023-11-19 07:50:42,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686649022] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:42,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:42,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:50:42,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370096313] [2023-11-19 07:50:42,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:42,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:50:42,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:42,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:50:42,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:50:42,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 571 out of 1188 [2023-11-19 07:50:42,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 117 transitions, 279 flow. Second operand has 3 states, 3 states have (on average 575.6666666666666) internal successors, (1727), 3 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) [2023-11-19 07:50:42,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:42,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 571 of 1188 [2023-11-19 07:50:42,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:43,421 INFO L124 PetriNetUnfolderBase]: 3816/9119 cut-off events. [2023-11-19 07:50:43,421 INFO L125 PetriNetUnfolderBase]: For 763/846 co-relation queries the response was YES. [2023-11-19 07:50:43,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15473 conditions, 9119 events. 3816/9119 cut-off events. For 763/846 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 80367 event pairs, 819 based on Foata normal form. 4/7801 useless extension candidates. Maximal degree in co-relation 15467. Up to 4806 conditions per place. [2023-11-19 07:50:43,512 INFO L140 encePairwiseOnDemand]: 1184/1188 looper letters, 71 selfloop transitions, 2 changer transitions 0/138 dead transitions. [2023-11-19 07:50:43,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 138 transitions, 489 flow [2023-11-19 07:50:43,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:50:43,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:50:43,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1777 transitions. [2023-11-19 07:50:43,521 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49859708193041524 [2023-11-19 07:50:43,521 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1777 transitions. [2023-11-19 07:50:43,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1777 transitions. [2023-11-19 07:50:43,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:43,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1777 transitions. [2023-11-19 07:50:43,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 592.3333333333334) internal successors, (1777), 3 states have internal predecessors, (1777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:43,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1188.0) internal successors, (4752), 4 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:43,544 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1188.0) internal successors, (4752), 4 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:43,544 INFO L175 Difference]: Start difference. First operand has 117 places, 117 transitions, 279 flow. Second operand 3 states and 1777 transitions. [2023-11-19 07:50:43,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 138 transitions, 489 flow [2023-11-19 07:50:43,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 138 transitions, 489 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:50:43,551 INFO L231 Difference]: Finished difference. Result has 118 places, 117 transitions, 289 flow [2023-11-19 07:50:43,552 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1188, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=289, PETRI_PLACES=118, PETRI_TRANSITIONS=117} [2023-11-19 07:50:43,556 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -31 predicate places. [2023-11-19 07:50:43,556 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 117 transitions, 289 flow [2023-11-19 07:50:43,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 575.6666666666666) internal successors, (1727), 3 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) [2023-11-19 07:50:43,558 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:43,558 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:43,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:50:43,558 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-19 07:50:43,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:43,559 INFO L85 PathProgramCache]: Analyzing trace with hash -561769899, now seen corresponding path program 1 times [2023-11-19 07:50:43,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:43,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655224923] [2023-11-19 07:50:43,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:43,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:43,647 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:50:43,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:43,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655224923] [2023-11-19 07:50:43,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655224923] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:43,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:43,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:50:43,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586992149] [2023-11-19 07:50:43,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:43,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:50:43,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:43,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:50:43,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:50:43,666 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 571 out of 1188 [2023-11-19 07:50:43,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 117 transitions, 289 flow. Second operand has 3 states, 3 states have (on average 575.6666666666666) internal successors, (1727), 3 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) [2023-11-19 07:50:43,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:43,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 571 of 1188 [2023-11-19 07:50:43,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:45,424 INFO L124 PetriNetUnfolderBase]: 5322/12943 cut-off events. [2023-11-19 07:50:45,424 INFO L125 PetriNetUnfolderBase]: For 1393/1472 co-relation queries the response was YES. [2023-11-19 07:50:45,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22361 conditions, 12943 events. 5322/12943 cut-off events. For 1393/1472 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 122236 event pairs, 1477 based on Foata normal form. 4/11129 useless extension candidates. Maximal degree in co-relation 22354. Up to 5152 conditions per place. [2023-11-19 07:50:45,539 INFO L140 encePairwiseOnDemand]: 1184/1188 looper letters, 84 selfloop transitions, 2 changer transitions 0/148 dead transitions. [2023-11-19 07:50:45,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 148 transitions, 551 flow [2023-11-19 07:50:45,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:50:45,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:50:45,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1788 transitions. [2023-11-19 07:50:45,547 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5016835016835017 [2023-11-19 07:50:45,547 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1788 transitions. [2023-11-19 07:50:45,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1788 transitions. [2023-11-19 07:50:45,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:45,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1788 transitions. [2023-11-19 07:50:45,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 596.0) internal successors, (1788), 3 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:45,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1188.0) internal successors, (4752), 4 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:45,564 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1188.0) internal successors, (4752), 4 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:45,565 INFO L175 Difference]: Start difference. First operand has 118 places, 117 transitions, 289 flow. Second operand 3 states and 1788 transitions. [2023-11-19 07:50:45,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 148 transitions, 551 flow [2023-11-19 07:50:45,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 148 transitions, 551 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:50:45,570 INFO L231 Difference]: Finished difference. Result has 119 places, 117 transitions, 299 flow [2023-11-19 07:50:45,570 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1188, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=299, PETRI_PLACES=119, PETRI_TRANSITIONS=117} [2023-11-19 07:50:45,571 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -30 predicate places. [2023-11-19 07:50:45,571 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 117 transitions, 299 flow [2023-11-19 07:50:45,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 575.6666666666666) internal successors, (1727), 3 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) [2023-11-19 07:50:45,573 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:45,573 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:45,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:50:45,573 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-19 07:50:45,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:45,574 INFO L85 PathProgramCache]: Analyzing trace with hash -2079301287, now seen corresponding path program 1 times [2023-11-19 07:50:45,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:45,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33814445] [2023-11-19 07:50:45,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:45,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:45,697 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:50:45,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:45,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33814445] [2023-11-19 07:50:45,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33814445] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:45,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:45,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:50:45,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061257560] [2023-11-19 07:50:45,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:45,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:50:45,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:45,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:50:45,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:50:45,715 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 571 out of 1188 [2023-11-19 07:50:45,726 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 117 transitions, 299 flow. Second operand has 3 states, 3 states have (on average 576.3333333333334) internal successors, (1729), 3 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:45,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:45,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 571 of 1188 [2023-11-19 07:50:45,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:48,080 INFO L124 PetriNetUnfolderBase]: 8018/19247 cut-off events. [2023-11-19 07:50:48,081 INFO L125 PetriNetUnfolderBase]: For 2375/2451 co-relation queries the response was YES. [2023-11-19 07:50:48,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34238 conditions, 19247 events. 8018/19247 cut-off events. For 2375/2451 co-relation queries the response was YES. Maximal size of possible extension queue 512. Compared 188510 event pairs, 2241 based on Foata normal form. 1/17587 useless extension candidates. Maximal degree in co-relation 34230. Up to 7528 conditions per place. [2023-11-19 07:50:48,247 INFO L140 encePairwiseOnDemand]: 1184/1188 looper letters, 93 selfloop transitions, 2 changer transitions 0/153 dead transitions. [2023-11-19 07:50:48,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 153 transitions, 599 flow [2023-11-19 07:50:48,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:50:48,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:50:48,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1793 transitions. [2023-11-19 07:50:48,260 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5030864197530864 [2023-11-19 07:50:48,260 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1793 transitions. [2023-11-19 07:50:48,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1793 transitions. [2023-11-19 07:50:48,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:48,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1793 transitions. [2023-11-19 07:50:48,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 597.6666666666666) internal successors, (1793), 3 states have internal predecessors, (1793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:48,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1188.0) internal successors, (4752), 4 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:48,281 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1188.0) internal successors, (4752), 4 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:48,281 INFO L175 Difference]: Start difference. First operand has 119 places, 117 transitions, 299 flow. Second operand 3 states and 1793 transitions. [2023-11-19 07:50:48,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 153 transitions, 599 flow [2023-11-19 07:50:48,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 153 transitions, 599 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:50:48,289 INFO L231 Difference]: Finished difference. Result has 120 places, 117 transitions, 309 flow [2023-11-19 07:50:48,291 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1188, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=309, PETRI_PLACES=120, PETRI_TRANSITIONS=117} [2023-11-19 07:50:48,291 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -29 predicate places. [2023-11-19 07:50:48,292 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 117 transitions, 309 flow [2023-11-19 07:50:48,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 576.3333333333334) internal successors, (1729), 3 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:48,293 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:48,293 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:48,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:50:48,293 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-19 07:50:48,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:48,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1705144622, now seen corresponding path program 1 times [2023-11-19 07:50:48,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:48,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022528255] [2023-11-19 07:50:48,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:48,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:48,466 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:50:48,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:48,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022528255] [2023-11-19 07:50:48,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022528255] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:50:48,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241715457] [2023-11-19 07:50:48,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:48,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:48,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:48,473 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:48,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:50:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:48,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:50:48,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:48,754 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:50:48,755 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:50:48,780 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:50:48,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241715457] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:50:48,781 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:50:48,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2023-11-19 07:50:48,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387650069] [2023-11-19 07:50:48,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:50:48,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:50:48,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:48,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:50:48,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:50:49,079 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 554 out of 1188 [2023-11-19 07:50:49,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 117 transitions, 309 flow. Second operand has 8 states, 8 states have (on average 556.625) internal successors, (4453), 8 states have internal predecessors, (4453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:49,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:49,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 554 of 1188 [2023-11-19 07:50:49,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:51,534 INFO L124 PetriNetUnfolderBase]: 6552/15459 cut-off events. [2023-11-19 07:50:51,534 INFO L125 PetriNetUnfolderBase]: For 2227/2396 co-relation queries the response was YES. [2023-11-19 07:50:51,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28787 conditions, 15459 events. 6552/15459 cut-off events. For 2227/2396 co-relation queries the response was YES. Maximal size of possible extension queue 403. Compared 142550 event pairs, 4887 based on Foata normal form. 0/14337 useless extension candidates. Maximal degree in co-relation 28778. Up to 9297 conditions per place. [2023-11-19 07:50:51,656 INFO L140 encePairwiseOnDemand]: 1181/1188 looper letters, 49 selfloop transitions, 15 changer transitions 0/126 dead transitions. [2023-11-19 07:50:51,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 126 transitions, 473 flow [2023-11-19 07:50:51,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:50:51,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:50:51,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3388 transitions. [2023-11-19 07:50:51,670 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47530864197530864 [2023-11-19 07:50:51,670 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3388 transitions. [2023-11-19 07:50:51,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3388 transitions. [2023-11-19 07:50:51,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:51,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3388 transitions. [2023-11-19 07:50:51,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 564.6666666666666) internal successors, (3388), 6 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:51,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1188.0) internal successors, (8316), 7 states have internal predecessors, (8316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:51,700 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1188.0) internal successors, (8316), 7 states have internal predecessors, (8316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:51,700 INFO L175 Difference]: Start difference. First operand has 120 places, 117 transitions, 309 flow. Second operand 6 states and 3388 transitions. [2023-11-19 07:50:51,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 126 transitions, 473 flow [2023-11-19 07:50:51,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 126 transitions, 473 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:50:51,705 INFO L231 Difference]: Finished difference. Result has 128 places, 126 transitions, 405 flow [2023-11-19 07:50:51,706 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1188, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=405, PETRI_PLACES=128, PETRI_TRANSITIONS=126} [2023-11-19 07:50:51,707 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -21 predicate places. [2023-11-19 07:50:51,707 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 126 transitions, 405 flow [2023-11-19 07:50:51,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 556.625) internal successors, (4453), 8 states have internal predecessors, (4453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:51,709 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:51,709 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:51,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:50:51,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:51,923 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-19 07:50:51,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:51,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1809178136, now seen corresponding path program 2 times [2023-11-19 07:50:51,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:51,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544289923] [2023-11-19 07:50:51,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:51,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:52,284 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 07:50:52,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:52,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544289923] [2023-11-19 07:50:52,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544289923] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:50:52,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743088351] [2023-11-19 07:50:52,289 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:50:52,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:52,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:52,293 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:52,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:50:52,471 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:50:52,472 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:50:52,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:50:52,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:52,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:50:52,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-19 07:50:52,634 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:50:52,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-19 07:50:52,676 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:50:52,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-11-19 07:50:52,709 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 07:50:52,709 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:50:52,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743088351] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:52,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:50:52,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 12 [2023-11-19 07:50:52,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529711941] [2023-11-19 07:50:52,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:52,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:50:52,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:52,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:50:52,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:50:53,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 556 out of 1188 [2023-11-19 07:50:53,330 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 126 transitions, 405 flow. Second operand has 7 states, 7 states have (on average 558.4285714285714) internal successors, (3909), 7 states have internal predecessors, (3909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:53,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:53,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 556 of 1188 [2023-11-19 07:50:53,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:50:57,615 INFO L124 PetriNetUnfolderBase]: 19768/30851 cut-off events. [2023-11-19 07:50:57,616 INFO L125 PetriNetUnfolderBase]: For 7418/7595 co-relation queries the response was YES. [2023-11-19 07:50:57,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68040 conditions, 30851 events. 19768/30851 cut-off events. For 7418/7595 co-relation queries the response was YES. Maximal size of possible extension queue 1058. Compared 219531 event pairs, 1790 based on Foata normal form. 0/29309 useless extension candidates. Maximal degree in co-relation 68027. Up to 9936 conditions per place. [2023-11-19 07:50:57,994 INFO L140 encePairwiseOnDemand]: 1182/1188 looper letters, 203 selfloop transitions, 5 changer transitions 0/265 dead transitions. [2023-11-19 07:50:57,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 265 transitions, 1279 flow [2023-11-19 07:50:57,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:50:57,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 07:50:58,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 4044 transitions. [2023-11-19 07:50:58,012 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4862914862914863 [2023-11-19 07:50:58,013 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 4044 transitions. [2023-11-19 07:50:58,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 4044 transitions. [2023-11-19 07:50:58,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:50:58,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 4044 transitions. [2023-11-19 07:50:58,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 577.7142857142857) internal successors, (4044), 7 states have internal predecessors, (4044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:58,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1188.0) internal successors, (9504), 8 states have internal predecessors, (9504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:58,053 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1188.0) internal successors, (9504), 8 states have internal predecessors, (9504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:58,053 INFO L175 Difference]: Start difference. First operand has 128 places, 126 transitions, 405 flow. Second operand 7 states and 4044 transitions. [2023-11-19 07:50:58,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 265 transitions, 1279 flow [2023-11-19 07:50:58,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 265 transitions, 1255 flow, removed 9 selfloop flow, removed 1 redundant places. [2023-11-19 07:50:58,066 INFO L231 Difference]: Finished difference. Result has 132 places, 125 transitions, 389 flow [2023-11-19 07:50:58,067 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1188, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=389, PETRI_PLACES=132, PETRI_TRANSITIONS=125} [2023-11-19 07:50:58,068 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -17 predicate places. [2023-11-19 07:50:58,068 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 125 transitions, 389 flow [2023-11-19 07:50:58,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 558.4285714285714) internal successors, (3909), 7 states have internal predecessors, (3909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:58,070 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:50:58,070 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:58,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:50:58,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:58,283 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-19 07:50:58,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:58,284 INFO L85 PathProgramCache]: Analyzing trace with hash -699621528, now seen corresponding path program 1 times [2023-11-19 07:50:58,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:58,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483762189] [2023-11-19 07:50:58,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:58,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:58,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:58,716 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 07:50:58,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:58,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483762189] [2023-11-19 07:50:58,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483762189] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:50:58,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155662834] [2023-11-19 07:50:58,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:58,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:58,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:58,720 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:58,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:50:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:58,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:50:58,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:59,030 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 07:50:59,031 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:50:59,127 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 07:50:59,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155662834] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:50:59,128 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:50:59,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2023-11-19 07:50:59,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257152406] [2023-11-19 07:50:59,128 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:50:59,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-19 07:50:59,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:59,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-19 07:50:59,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2023-11-19 07:50:59,913 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 554 out of 1188 [2023-11-19 07:50:59,924 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 125 transitions, 389 flow. Second operand has 17 states, 17 states have (on average 555.7647058823529) internal successors, (9448), 17 states have internal predecessors, (9448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:59,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:50:59,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 554 of 1188 [2023-11-19 07:50:59,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:51:02,014 INFO L124 PetriNetUnfolderBase]: 6552/15464 cut-off events. [2023-11-19 07:51:02,014 INFO L125 PetriNetUnfolderBase]: For 3293/3462 co-relation queries the response was YES. [2023-11-19 07:51:02,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29945 conditions, 15464 events. 6552/15464 cut-off events. For 3293/3462 co-relation queries the response was YES. Maximal size of possible extension queue 403. Compared 142600 event pairs, 4887 based on Foata normal form. 1/14358 useless extension candidates. Maximal degree in co-relation 29931. Up to 9297 conditions per place. [2023-11-19 07:51:02,167 INFO L140 encePairwiseOnDemand]: 1181/1188 looper letters, 49 selfloop transitions, 18 changer transitions 0/128 dead transitions. [2023-11-19 07:51:02,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 128 transitions, 541 flow [2023-11-19 07:51:02,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:51:02,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 07:51:02,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3939 transitions. [2023-11-19 07:51:02,185 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4736652236652237 [2023-11-19 07:51:02,186 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3939 transitions. [2023-11-19 07:51:02,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3939 transitions. [2023-11-19 07:51:02,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:51:02,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3939 transitions. [2023-11-19 07:51:02,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 562.7142857142857) internal successors, (3939), 7 states have internal predecessors, (3939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:51:02,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1188.0) internal successors, (9504), 8 states have internal predecessors, (9504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:51:02,223 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1188.0) internal successors, (9504), 8 states have internal predecessors, (9504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:51:02,223 INFO L175 Difference]: Start difference. First operand has 132 places, 125 transitions, 389 flow. Second operand 7 states and 3939 transitions. [2023-11-19 07:51:02,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 128 transitions, 541 flow [2023-11-19 07:51:02,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 128 transitions, 532 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-19 07:51:02,234 INFO L231 Difference]: Finished difference. Result has 134 places, 128 transitions, 448 flow [2023-11-19 07:51:02,234 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1188, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=448, PETRI_PLACES=134, PETRI_TRANSITIONS=128} [2023-11-19 07:51:02,235 INFO L281 CegarLoopForPetriNet]: 149 programPoint places, -15 predicate places. [2023-11-19 07:51:02,235 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 128 transitions, 448 flow [2023-11-19 07:51:02,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 555.7647058823529) internal successors, (9448), 17 states have internal predecessors, (9448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:51:02,239 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:51:02,239 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:51:02,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:51:02,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bdc9c81-0b84-4656-a868-5253a7393b7a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:51:02,455 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-11-19 07:51:02,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:51:02,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1429607234, now seen corresponding path program 2 times [2023-11-19 07:51:02,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:51:02,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860752438] [2023-11-19 07:51:02,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:51:02,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:51:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat