./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/singleton.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_6a2e83b7-98a7-4163-bbf6-f4b473345b70/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2e83b7-98a7-4163-bbf6-f4b473345b70/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2e83b7-98a7-4163-bbf6-f4b473345b70/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2e83b7-98a7-4163-bbf6-f4b473345b70/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/singleton.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2e83b7-98a7-4163-bbf6-f4b473345b70/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2e83b7-98a7-4163-bbf6-f4b473345b70/bin/uautomizer-verify-BQ2R08f2Ya --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 ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:50:03,785 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:50:03,849 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2e83b7-98a7-4163-bbf6-f4b473345b70/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 01:50:03,854 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:50:03,854 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:50:03,886 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:50:03,886 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:50:03,887 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:50:03,887 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:50:03,888 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:50:03,889 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:50:03,890 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:50:03,890 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:50:03,891 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:50:03,891 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:50:03,892 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:50:03,892 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:50:03,893 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:50:03,894 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:50:03,894 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:50:03,895 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:50:03,895 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:50:03,896 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 01:50:03,896 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:50:03,897 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:50:03,897 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:50:03,898 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:50:03,898 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:50:03,898 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:50:03,899 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:50:03,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:50:03,906 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:50:03,906 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:50:03,906 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:50:03,906 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:50:03,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:50:03,907 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:50:03,907 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:50:03,907 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:50:03,907 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:50:03,907 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:50:03,908 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_6a2e83b7-98a7-4163-bbf6-f4b473345b70/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2e83b7-98a7-4163-bbf6-f4b473345b70/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f [2023-11-29 01:50:04,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:50:04,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:50:04,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:50:04,186 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:50:04,187 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:50:04,188 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2e83b7-98a7-4163-bbf6-f4b473345b70/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread/singleton.i [2023-11-29 01:50:07,081 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:50:07,346 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:50:07,347 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2e83b7-98a7-4163-bbf6-f4b473345b70/sv-benchmarks/c/pthread/singleton.i [2023-11-29 01:50:07,366 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2e83b7-98a7-4163-bbf6-f4b473345b70/bin/uautomizer-verify-BQ2R08f2Ya/data/cd1a9d26b/3b0ac992b01e4103b4a19b5ce591ca6f/FLAG098f4fa39 [2023-11-29 01:50:07,381 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2e83b7-98a7-4163-bbf6-f4b473345b70/bin/uautomizer-verify-BQ2R08f2Ya/data/cd1a9d26b/3b0ac992b01e4103b4a19b5ce591ca6f [2023-11-29 01:50:07,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:50:07,385 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:50:07,386 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:50:07,387 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:50:07,392 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:50:07,393 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:50:07" (1/1) ... [2023-11-29 01:50:07,394 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a293587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:07, skipping insertion in model container [2023-11-29 01:50:07,394 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:50:07" (1/1) ... [2023-11-29 01:50:07,451 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:50:08,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:50:08,070 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:50:08,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:50:08,187 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:50:08,187 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:50:08,193 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:50:08,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:08 WrapperNode [2023-11-29 01:50:08,194 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:50:08,195 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:50:08,195 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:50:08,195 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:50:08,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:08" (1/1) ... [2023-11-29 01:50:08,224 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:08" (1/1) ... [2023-11-29 01:50:08,248 INFO L138 Inliner]: procedures = 324, calls = 52, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 46 [2023-11-29 01:50:08,249 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:50:08,249 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:50:08,249 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:50:08,250 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:50:08,257 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:08" (1/1) ... [2023-11-29 01:50:08,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:08" (1/1) ... [2023-11-29 01:50:08,262 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:08" (1/1) ... [2023-11-29 01:50:08,263 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:08" (1/1) ... [2023-11-29 01:50:08,278 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:08" (1/1) ... [2023-11-29 01:50:08,280 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:08" (1/1) ... [2023-11-29 01:50:08,282 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:08" (1/1) ... [2023-11-29 01:50:08,284 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:08" (1/1) ... [2023-11-29 01:50:08,289 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:50:08,290 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:50:08,290 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:50:08,290 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:50:08,291 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:08" (1/1) ... [2023-11-29 01:50:08,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:50:08,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2e83b7-98a7-4163-bbf6-f4b473345b70/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:50:08,320 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2e83b7-98a7-4163-bbf6-f4b473345b70/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:50:08,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a2e83b7-98a7-4163-bbf6-f4b473345b70/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:50:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 01:50:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 01:50:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 01:50:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 01:50:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 01:50:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2023-11-29 01:50:08,353 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2023-11-29 01:50:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-29 01:50:08,354 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-29 01:50:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-29 01:50:08,354 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-29 01:50:08,354 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-29 01:50:08,354 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-29 01:50:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 01:50:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 01:50:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:50:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 01:50:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:50:08,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:50:08,357 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 01:50:08,490 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:50:08,492 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:50:08,779 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:50:08,835 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:50:08,835 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 01:50:08,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:50:08 BoogieIcfgContainer [2023-11-29 01:50:08,849 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:50:08,852 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:50:08,853 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:50:08,856 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:50:08,856 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:50:07" (1/3) ... [2023-11-29 01:50:08,857 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a870250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:50:08, skipping insertion in model container [2023-11-29 01:50:08,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:50:08" (2/3) ... [2023-11-29 01:50:08,858 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a870250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:50:08, skipping insertion in model container [2023-11-29 01:50:08,858 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:50:08" (3/3) ... [2023-11-29 01:50:08,859 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton.i [2023-11-29 01:50:08,868 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 01:50:08,876 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:50:08,876 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2023-11-29 01:50:08,876 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 01:50:09,024 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2023-11-29 01:50:09,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 282 places, 273 transitions, 643 flow [2023-11-29 01:50:09,150 INFO L124 PetriNetUnfolderBase]: 7/186 cut-off events. [2023-11-29 01:50:09,150 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-29 01:50:09,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 186 events. 7/186 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 133 event pairs, 0 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 162. Up to 3 conditions per place. [2023-11-29 01:50:09,157 INFO L82 GeneralOperation]: Start removeDead. Operand has 282 places, 273 transitions, 643 flow [2023-11-29 01:50:09,166 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 178 places, 164 transitions, 379 flow [2023-11-29 01:50:09,178 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:50:09,185 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;@28c92091, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:50:09,186 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-11-29 01:50:09,196 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 01:50:09,196 INFO L124 PetriNetUnfolderBase]: 0/29 cut-off events. [2023-11-29 01:50:09,196 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 01:50:09,196 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:50:09,197 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:50:09,198 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:50:09,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:50:09,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1514420532, now seen corresponding path program 1 times [2023-11-29 01:50:09,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:50:09,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841186258] [2023-11-29 01:50:09,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:50:09,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:50:09,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:09,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:50:09,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:50:09,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841186258] [2023-11-29 01:50:09,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841186258] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:50:09,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:50:09,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:50:09,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566766286] [2023-11-29 01:50:09,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:50:09,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:50:09,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:50:09,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:50:09,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:50:10,527 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 275 [2023-11-29 01:50:10,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 164 transitions, 379 flow. Second operand has 6 states, 6 states have (on average 220.33333333333334) internal successors, (1322), 6 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:10,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:50:10,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 275 [2023-11-29 01:50:10,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:50:11,431 INFO L124 PetriNetUnfolderBase]: 1178/3202 cut-off events. [2023-11-29 01:50:11,431 INFO L125 PetriNetUnfolderBase]: For 808/1073 co-relation queries the response was YES. [2023-11-29 01:50:11,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5626 conditions, 3202 events. 1178/3202 cut-off events. For 808/1073 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 21994 event pairs, 229 based on Foata normal form. 4/2775 useless extension candidates. Maximal degree in co-relation 5579. Up to 1195 conditions per place. [2023-11-29 01:50:11,470 INFO L140 encePairwiseOnDemand]: 257/275 looper letters, 89 selfloop transitions, 21 changer transitions 0/237 dead transitions. [2023-11-29 01:50:11,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 237 transitions, 928 flow [2023-11-29 01:50:11,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:50:11,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:50:11,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1465 transitions. [2023-11-29 01:50:11,489 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8878787878787879 [2023-11-29 01:50:11,490 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1465 transitions. [2023-11-29 01:50:11,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1465 transitions. [2023-11-29 01:50:11,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:50:11,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1465 transitions. [2023-11-29 01:50:11,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 244.16666666666666) internal successors, (1465), 6 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:11,515 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:11,517 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:11,519 INFO L175 Difference]: Start difference. First operand has 178 places, 164 transitions, 379 flow. Second operand 6 states and 1465 transitions. [2023-11-29 01:50:11,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 237 transitions, 928 flow [2023-11-29 01:50:11,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 237 transitions, 772 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-11-29 01:50:11,539 INFO L231 Difference]: Finished difference. Result has 168 places, 176 transitions, 471 flow [2023-11-29 01:50:11,541 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=471, PETRI_PLACES=168, PETRI_TRANSITIONS=176} [2023-11-29 01:50:11,545 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, -10 predicate places. [2023-11-29 01:50:11,545 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 176 transitions, 471 flow [2023-11-29 01:50:11,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 220.33333333333334) internal successors, (1322), 6 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:11,547 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:50:11,547 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:50:11,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 01:50:11,547 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:50:11,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:50:11,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1195813822, now seen corresponding path program 1 times [2023-11-29 01:50:11,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:50:11,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880766494] [2023-11-29 01:50:11,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:50:11,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:50:11,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:11,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:50:11,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:50:11,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880766494] [2023-11-29 01:50:11,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880766494] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:50:11,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:50:11,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:50:11,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566213387] [2023-11-29 01:50:11,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:50:11,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:50:11,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:50:11,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:50:11,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:50:11,621 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 275 [2023-11-29 01:50:11,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 176 transitions, 471 flow. Second operand has 3 states, 3 states have (on average 224.66666666666666) internal successors, (674), 3 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:11,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:50:11,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 275 [2023-11-29 01:50:11,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:50:11,968 INFO L124 PetriNetUnfolderBase]: 782/2143 cut-off events. [2023-11-29 01:50:11,968 INFO L125 PetriNetUnfolderBase]: For 1156/1333 co-relation queries the response was YES. [2023-11-29 01:50:11,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4647 conditions, 2143 events. 782/2143 cut-off events. For 1156/1333 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 13575 event pairs, 306 based on Foata normal form. 0/1958 useless extension candidates. Maximal degree in co-relation 2961. Up to 939 conditions per place. [2023-11-29 01:50:11,991 INFO L140 encePairwiseOnDemand]: 272/275 looper letters, 40 selfloop transitions, 2 changer transitions 0/175 dead transitions. [2023-11-29 01:50:11,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 175 transitions, 553 flow [2023-11-29 01:50:11,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:50:11,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 01:50:11,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 696 transitions. [2023-11-29 01:50:11,993 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8436363636363636 [2023-11-29 01:50:11,993 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 696 transitions. [2023-11-29 01:50:11,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 696 transitions. [2023-11-29 01:50:11,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:50:11,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 696 transitions. [2023-11-29 01:50:11,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:11,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 275.0) internal successors, (1100), 4 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:11,999 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 275.0) internal successors, (1100), 4 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:11,999 INFO L175 Difference]: Start difference. First operand has 168 places, 176 transitions, 471 flow. Second operand 3 states and 696 transitions. [2023-11-29 01:50:11,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 175 transitions, 553 flow [2023-11-29 01:50:12,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 175 transitions, 553 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 01:50:12,007 INFO L231 Difference]: Finished difference. Result has 169 places, 175 transitions, 473 flow [2023-11-29 01:50:12,008 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=473, PETRI_PLACES=169, PETRI_TRANSITIONS=175} [2023-11-29 01:50:12,009 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, -9 predicate places. [2023-11-29 01:50:12,009 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 175 transitions, 473 flow [2023-11-29 01:50:12,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.66666666666666) internal successors, (674), 3 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:12,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:50:12,010 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:50:12,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 01:50:12,011 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread0Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:50:12,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:50:12,011 INFO L85 PathProgramCache]: Analyzing trace with hash 146009635, now seen corresponding path program 1 times [2023-11-29 01:50:12,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:50:12,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458339213] [2023-11-29 01:50:12,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:50:12,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:50:12,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:12,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:50:12,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:50:12,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458339213] [2023-11-29 01:50:12,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458339213] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:50:12,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:50:12,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:50:12,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092225597] [2023-11-29 01:50:12,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:50:12,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:50:12,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:50:12,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:50:12,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:50:12,922 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 275 [2023-11-29 01:50:12,924 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 175 transitions, 473 flow. Second operand has 6 states, 6 states have (on average 222.33333333333334) internal successors, (1334), 6 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:12,924 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:50:12,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 275 [2023-11-29 01:50:12,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:50:13,310 INFO L124 PetriNetUnfolderBase]: 759/2207 cut-off events. [2023-11-29 01:50:13,311 INFO L125 PetriNetUnfolderBase]: For 1259/1373 co-relation queries the response was YES. [2023-11-29 01:50:13,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4658 conditions, 2207 events. 759/2207 cut-off events. For 1259/1373 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 15090 event pairs, 174 based on Foata normal form. 4/1997 useless extension candidates. Maximal degree in co-relation 4611. Up to 934 conditions per place. [2023-11-29 01:50:13,338 INFO L140 encePairwiseOnDemand]: 266/275 looper letters, 43 selfloop transitions, 24 changer transitions 0/197 dead transitions. [2023-11-29 01:50:13,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 197 transitions, 726 flow [2023-11-29 01:50:13,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:50:13,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 01:50:13,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1362 transitions. [2023-11-29 01:50:13,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8254545454545454 [2023-11-29 01:50:13,344 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1362 transitions. [2023-11-29 01:50:13,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1362 transitions. [2023-11-29 01:50:13,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:50:13,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1362 transitions. [2023-11-29 01:50:13,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 227.0) internal successors, (1362), 6 states have internal predecessors, (1362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:13,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:13,356 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:13,356 INFO L175 Difference]: Start difference. First operand has 169 places, 175 transitions, 473 flow. Second operand 6 states and 1362 transitions. [2023-11-29 01:50:13,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 197 transitions, 726 flow [2023-11-29 01:50:13,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 197 transitions, 722 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 01:50:13,365 INFO L231 Difference]: Finished difference. Result has 172 places, 194 transitions, 688 flow [2023-11-29 01:50:13,365 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=688, PETRI_PLACES=172, PETRI_TRANSITIONS=194} [2023-11-29 01:50:13,366 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, -6 predicate places. [2023-11-29 01:50:13,366 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 194 transitions, 688 flow [2023-11-29 01:50:13,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 222.33333333333334) internal successors, (1334), 6 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:13,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:50:13,368 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:50:13,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 01:50:13,368 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:50:13,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:50:13,369 INFO L85 PathProgramCache]: Analyzing trace with hash 982132393, now seen corresponding path program 1 times [2023-11-29 01:50:13,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:50:13,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219161701] [2023-11-29 01:50:13,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:50:13,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:50:13,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:14,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:50:14,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:50:14,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219161701] [2023-11-29 01:50:14,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219161701] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:50:14,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:50:14,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:50:14,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427128992] [2023-11-29 01:50:14,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:50:14,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:50:14,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:50:14,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:50:14,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:50:16,826 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 275 [2023-11-29 01:50:16,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 194 transitions, 688 flow. Second operand has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:16,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:50:16,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 275 [2023-11-29 01:50:16,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:50:18,385 INFO L124 PetriNetUnfolderBase]: 1749/4611 cut-off events. [2023-11-29 01:50:18,385 INFO L125 PetriNetUnfolderBase]: For 3044/3226 co-relation queries the response was YES. [2023-11-29 01:50:18,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11398 conditions, 4611 events. 1749/4611 cut-off events. For 3044/3226 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 34515 event pairs, 444 based on Foata normal form. 107/4061 useless extension candidates. Maximal degree in co-relation 4882. Up to 1196 conditions per place. [2023-11-29 01:50:18,427 INFO L140 encePairwiseOnDemand]: 257/275 looper letters, 206 selfloop transitions, 55 changer transitions 0/375 dead transitions. [2023-11-29 01:50:18,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 375 transitions, 1858 flow [2023-11-29 01:50:18,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 01:50:18,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-29 01:50:18,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3656 transitions. [2023-11-29 01:50:18,439 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7820320855614973 [2023-11-29 01:50:18,439 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3656 transitions. [2023-11-29 01:50:18,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3656 transitions. [2023-11-29 01:50:18,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:50:18,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3656 transitions. [2023-11-29 01:50:18,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 215.05882352941177) internal successors, (3656), 17 states have internal predecessors, (3656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:18,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 275.0) internal successors, (4950), 18 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:18,467 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 275.0) internal successors, (4950), 18 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:18,467 INFO L175 Difference]: Start difference. First operand has 172 places, 194 transitions, 688 flow. Second operand 17 states and 3656 transitions. [2023-11-29 01:50:18,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 375 transitions, 1858 flow [2023-11-29 01:50:18,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 375 transitions, 1823 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 01:50:18,481 INFO L231 Difference]: Finished difference. Result has 198 places, 224 transitions, 1068 flow [2023-11-29 01:50:18,482 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1068, PETRI_PLACES=198, PETRI_TRANSITIONS=224} [2023-11-29 01:50:18,483 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 20 predicate places. [2023-11-29 01:50:18,483 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 224 transitions, 1068 flow [2023-11-29 01:50:18,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:18,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:50:18,485 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:50:18,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 01:50:18,485 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:50:18,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:50:18,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1691742273, now seen corresponding path program 2 times [2023-11-29 01:50:18,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:50:18,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93026736] [2023-11-29 01:50:18,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:50:18,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:50:18,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:19,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:50:19,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:50:19,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93026736] [2023-11-29 01:50:19,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93026736] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:50:19,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:50:19,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:50:19,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217054984] [2023-11-29 01:50:19,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:50:19,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:50:19,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:50:19,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:50:19,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:50:21,851 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 275 [2023-11-29 01:50:21,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 224 transitions, 1068 flow. Second operand has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:21,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:50:21,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 275 [2023-11-29 01:50:21,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:50:23,763 INFO L124 PetriNetUnfolderBase]: 2508/6716 cut-off events. [2023-11-29 01:50:23,763 INFO L125 PetriNetUnfolderBase]: For 9593/10057 co-relation queries the response was YES. [2023-11-29 01:50:23,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19072 conditions, 6716 events. 2508/6716 cut-off events. For 9593/10057 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 54815 event pairs, 665 based on Foata normal form. 63/5823 useless extension candidates. Maximal degree in co-relation 18123. Up to 1881 conditions per place. [2023-11-29 01:50:23,836 INFO L140 encePairwiseOnDemand]: 258/275 looper letters, 264 selfloop transitions, 100 changer transitions 0/478 dead transitions. [2023-11-29 01:50:23,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 478 transitions, 3271 flow [2023-11-29 01:50:23,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 01:50:23,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-29 01:50:23,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4882 transitions. [2023-11-29 01:50:23,852 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7718577075098815 [2023-11-29 01:50:23,853 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4882 transitions. [2023-11-29 01:50:23,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4882 transitions. [2023-11-29 01:50:23,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:50:23,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4882 transitions. [2023-11-29 01:50:23,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 212.2608695652174) internal successors, (4882), 23 states have internal predecessors, (4882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:23,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 275.0) internal successors, (6600), 24 states have internal predecessors, (6600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:23,888 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 275.0) internal successors, (6600), 24 states have internal predecessors, (6600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:23,888 INFO L175 Difference]: Start difference. First operand has 198 places, 224 transitions, 1068 flow. Second operand 23 states and 4882 transitions. [2023-11-29 01:50:23,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 478 transitions, 3271 flow [2023-11-29 01:50:23,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 478 transitions, 3271 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 01:50:23,935 INFO L231 Difference]: Finished difference. Result has 237 places, 307 transitions, 2276 flow [2023-11-29 01:50:23,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=1068, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=2276, PETRI_PLACES=237, PETRI_TRANSITIONS=307} [2023-11-29 01:50:23,937 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 59 predicate places. [2023-11-29 01:50:23,937 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 307 transitions, 2276 flow [2023-11-29 01:50:23,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:23,939 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:50:23,939 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:50:23,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 01:50:23,939 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:50:23,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:50:23,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1242524183, now seen corresponding path program 3 times [2023-11-29 01:50:23,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:50:23,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823325616] [2023-11-29 01:50:23,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:50:23,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:50:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:24,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:50:24,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:50:24,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823325616] [2023-11-29 01:50:24,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823325616] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:50:24,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:50:24,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:50:24,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131852685] [2023-11-29 01:50:24,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:50:24,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:50:24,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:50:24,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:50:24,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:50:26,731 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 275 [2023-11-29 01:50:26,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 307 transitions, 2276 flow. Second operand has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:26,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:50:26,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 275 [2023-11-29 01:50:26,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:50:29,182 INFO L124 PetriNetUnfolderBase]: 3334/9129 cut-off events. [2023-11-29 01:50:29,182 INFO L125 PetriNetUnfolderBase]: For 25988/26593 co-relation queries the response was YES. [2023-11-29 01:50:29,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29033 conditions, 9129 events. 3334/9129 cut-off events. For 25988/26593 co-relation queries the response was YES. Maximal size of possible extension queue 351. Compared 80009 event pairs, 929 based on Foata normal form. 84/7909 useless extension candidates. Maximal degree in co-relation 28112. Up to 2165 conditions per place. [2023-11-29 01:50:29,363 INFO L140 encePairwiseOnDemand]: 258/275 looper letters, 307 selfloop transitions, 149 changer transitions 0/570 dead transitions. [2023-11-29 01:50:29,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 570 transitions, 5289 flow [2023-11-29 01:50:29,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 01:50:29,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-29 01:50:29,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4887 transitions. [2023-11-29 01:50:29,384 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7726482213438736 [2023-11-29 01:50:29,384 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4887 transitions. [2023-11-29 01:50:29,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4887 transitions. [2023-11-29 01:50:29,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:50:29,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4887 transitions. [2023-11-29 01:50:29,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 212.47826086956522) internal successors, (4887), 23 states have internal predecessors, (4887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:29,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 275.0) internal successors, (6600), 24 states have internal predecessors, (6600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:29,445 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 275.0) internal successors, (6600), 24 states have internal predecessors, (6600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:29,445 INFO L175 Difference]: Start difference. First operand has 237 places, 307 transitions, 2276 flow. Second operand 23 states and 4887 transitions. [2023-11-29 01:50:29,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 570 transitions, 5289 flow [2023-11-29 01:50:29,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 570 transitions, 5255 flow, removed 17 selfloop flow, removed 0 redundant places. [2023-11-29 01:50:29,620 INFO L231 Difference]: Finished difference. Result has 275 places, 385 transitions, 3746 flow [2023-11-29 01:50:29,621 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=2242, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=3746, PETRI_PLACES=275, PETRI_TRANSITIONS=385} [2023-11-29 01:50:29,625 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 97 predicate places. [2023-11-29 01:50:29,625 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 385 transitions, 3746 flow [2023-11-29 01:50:29,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:29,627 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:50:29,627 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:50:29,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 01:50:29,628 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:50:29,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:50:29,628 INFO L85 PathProgramCache]: Analyzing trace with hash -138496157, now seen corresponding path program 4 times [2023-11-29 01:50:29,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:50:29,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548835217] [2023-11-29 01:50:29,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:50:29,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:50:29,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:30,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:50:30,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:50:30,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548835217] [2023-11-29 01:50:30,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548835217] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:50:30,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:50:30,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:50:30,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638875622] [2023-11-29 01:50:30,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:50:30,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:50:30,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:50:30,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:50:30,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:50:32,920 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 275 [2023-11-29 01:50:32,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 385 transitions, 3746 flow. Second operand has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:32,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:50:32,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 275 [2023-11-29 01:50:32,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:50:36,319 INFO L124 PetriNetUnfolderBase]: 4378/11427 cut-off events. [2023-11-29 01:50:36,319 INFO L125 PetriNetUnfolderBase]: For 50027/51083 co-relation queries the response was YES. [2023-11-29 01:50:36,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41063 conditions, 11427 events. 4378/11427 cut-off events. For 50027/51083 co-relation queries the response was YES. Maximal size of possible extension queue 447. Compared 102982 event pairs, 1251 based on Foata normal form. 126/9872 useless extension candidates. Maximal degree in co-relation 39773. Up to 2805 conditions per place. [2023-11-29 01:50:36,444 INFO L140 encePairwiseOnDemand]: 258/275 looper letters, 352 selfloop transitions, 182 changer transitions 0/648 dead transitions. [2023-11-29 01:50:36,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 648 transitions, 7307 flow [2023-11-29 01:50:36,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 01:50:36,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-29 01:50:36,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 5085 transitions. [2023-11-29 01:50:36,457 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7704545454545455 [2023-11-29 01:50:36,457 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 5085 transitions. [2023-11-29 01:50:36,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 5085 transitions. [2023-11-29 01:50:36,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:50:36,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 5085 transitions. [2023-11-29 01:50:36,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 211.875) internal successors, (5085), 24 states have internal predecessors, (5085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:36,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 275.0) internal successors, (6875), 25 states have internal predecessors, (6875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:36,482 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 275.0) internal successors, (6875), 25 states have internal predecessors, (6875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:36,483 INFO L175 Difference]: Start difference. First operand has 275 places, 385 transitions, 3746 flow. Second operand 24 states and 5085 transitions. [2023-11-29 01:50:36,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 648 transitions, 7307 flow [2023-11-29 01:50:36,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 648 transitions, 7127 flow, removed 80 selfloop flow, removed 1 redundant places. [2023-11-29 01:50:36,736 INFO L231 Difference]: Finished difference. Result has 316 places, 456 transitions, 5383 flow [2023-11-29 01:50:36,737 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=3605, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=5383, PETRI_PLACES=316, PETRI_TRANSITIONS=456} [2023-11-29 01:50:36,738 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 138 predicate places. [2023-11-29 01:50:36,738 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 456 transitions, 5383 flow [2023-11-29 01:50:36,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:36,739 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:50:36,739 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:50:36,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 01:50:36,739 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:50:36,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:50:36,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1057360239, now seen corresponding path program 5 times [2023-11-29 01:50:36,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:50:36,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227687593] [2023-11-29 01:50:36,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:50:36,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:50:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:37,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:50:37,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:50:37,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227687593] [2023-11-29 01:50:37,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227687593] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:50:37,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:50:37,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:50:37,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532922241] [2023-11-29 01:50:37,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:50:37,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:50:37,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:50:37,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:50:37,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:50:39,468 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 275 [2023-11-29 01:50:39,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 456 transitions, 5383 flow. Second operand has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:39,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:50:39,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 275 [2023-11-29 01:50:39,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:50:43,972 INFO L124 PetriNetUnfolderBase]: 5471/15315 cut-off events. [2023-11-29 01:50:43,972 INFO L125 PetriNetUnfolderBase]: For 93588/94493 co-relation queries the response was YES. [2023-11-29 01:50:44,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56848 conditions, 15315 events. 5471/15315 cut-off events. For 93588/94493 co-relation queries the response was YES. Maximal size of possible extension queue 607. Compared 152240 event pairs, 1635 based on Foata normal form. 268/13489 useless extension candidates. Maximal degree in co-relation 55921. Up to 3898 conditions per place. [2023-11-29 01:50:44,177 INFO L140 encePairwiseOnDemand]: 257/275 looper letters, 415 selfloop transitions, 234 changer transitions 0/763 dead transitions. [2023-11-29 01:50:44,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 763 transitions, 9939 flow [2023-11-29 01:50:44,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 01:50:44,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-29 01:50:44,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4501 transitions. [2023-11-29 01:50:44,184 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7793939393939394 [2023-11-29 01:50:44,184 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4501 transitions. [2023-11-29 01:50:44,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4501 transitions. [2023-11-29 01:50:44,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:50:44,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4501 transitions. [2023-11-29 01:50:44,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 214.33333333333334) internal successors, (4501), 21 states have internal predecessors, (4501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:44,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 275.0) internal successors, (6050), 22 states have internal predecessors, (6050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:44,205 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 275.0) internal successors, (6050), 22 states have internal predecessors, (6050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:44,205 INFO L175 Difference]: Start difference. First operand has 316 places, 456 transitions, 5383 flow. Second operand 21 states and 4501 transitions. [2023-11-29 01:50:44,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 763 transitions, 9939 flow [2023-11-29 01:50:44,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 763 transitions, 9561 flow, removed 189 selfloop flow, removed 0 redundant places. [2023-11-29 01:50:44,722 INFO L231 Difference]: Finished difference. Result has 348 places, 539 transitions, 7325 flow [2023-11-29 01:50:44,723 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=5211, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=159, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=7325, PETRI_PLACES=348, PETRI_TRANSITIONS=539} [2023-11-29 01:50:44,723 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 170 predicate places. [2023-11-29 01:50:44,724 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 539 transitions, 7325 flow [2023-11-29 01:50:44,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:44,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:50:44,724 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:50:44,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 01:50:44,725 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:50:44,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:50:44,725 INFO L85 PathProgramCache]: Analyzing trace with hash -2003563095, now seen corresponding path program 6 times [2023-11-29 01:50:44,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:50:44,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989957249] [2023-11-29 01:50:44,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:50:44,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:50:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:45,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:50:45,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:50:45,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989957249] [2023-11-29 01:50:45,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989957249] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:50:45,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:50:45,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 01:50:45,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096701835] [2023-11-29 01:50:45,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:50:45,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:50:45,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:50:45,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:50:45,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:50:45,923 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 275 [2023-11-29 01:50:45,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 539 transitions, 7325 flow. Second operand has 10 states, 10 states have (on average 216.6) internal successors, (2166), 10 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:45,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:50:45,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 275 [2023-11-29 01:50:45,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:50:50,255 INFO L124 PetriNetUnfolderBase]: 5809/16065 cut-off events. [2023-11-29 01:50:50,255 INFO L125 PetriNetUnfolderBase]: For 117310/118469 co-relation queries the response was YES. [2023-11-29 01:50:50,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62317 conditions, 16065 events. 5809/16065 cut-off events. For 117310/118469 co-relation queries the response was YES. Maximal size of possible extension queue 627. Compared 158525 event pairs, 1682 based on Foata normal form. 123/13830 useless extension candidates. Maximal degree in co-relation 62035. Up to 4085 conditions per place. [2023-11-29 01:50:50,418 INFO L140 encePairwiseOnDemand]: 265/275 looper letters, 359 selfloop transitions, 162 changer transitions 0/703 dead transitions. [2023-11-29 01:50:50,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 703 transitions, 10338 flow [2023-11-29 01:50:50,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 01:50:50,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 01:50:50,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3576 transitions. [2023-11-29 01:50:50,423 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8127272727272727 [2023-11-29 01:50:50,423 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3576 transitions. [2023-11-29 01:50:50,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3576 transitions. [2023-11-29 01:50:50,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:50:50,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3576 transitions. [2023-11-29 01:50:50,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 223.5) internal successors, (3576), 16 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:50,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 275.0) internal successors, (4675), 17 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:50,436 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 275.0) internal successors, (4675), 17 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:50,436 INFO L175 Difference]: Start difference. First operand has 348 places, 539 transitions, 7325 flow. Second operand 16 states and 3576 transitions. [2023-11-29 01:50:50,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 703 transitions, 10338 flow [2023-11-29 01:50:51,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 703 transitions, 10056 flow, removed 63 selfloop flow, removed 3 redundant places. [2023-11-29 01:50:51,138 INFO L231 Difference]: Finished difference. Result has 369 places, 576 transitions, 8272 flow [2023-11-29 01:50:51,139 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=7121, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=8272, PETRI_PLACES=369, PETRI_TRANSITIONS=576} [2023-11-29 01:50:51,140 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 191 predicate places. [2023-11-29 01:50:51,140 INFO L495 AbstractCegarLoop]: Abstraction has has 369 places, 576 transitions, 8272 flow [2023-11-29 01:50:51,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 216.6) internal successors, (2166), 10 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:51,140 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:50:51,140 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:50:51,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 01:50:51,141 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:50:51,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:50:51,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1654373691, now seen corresponding path program 7 times [2023-11-29 01:50:51,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:50:51,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380815300] [2023-11-29 01:50:51,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:50:51,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:50:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:51,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:50:51,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:50:51,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380815300] [2023-11-29 01:50:51,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380815300] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:50:51,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:50:51,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:50:51,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504225952] [2023-11-29 01:50:51,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:50:51,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:50:51,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:50:51,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:50:51,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:50:53,788 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 275 [2023-11-29 01:50:53,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 576 transitions, 8272 flow. Second operand has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:53,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:50:53,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 275 [2023-11-29 01:50:53,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:50:59,186 INFO L124 PetriNetUnfolderBase]: 6354/18550 cut-off events. [2023-11-29 01:50:59,186 INFO L125 PetriNetUnfolderBase]: For 157430/158629 co-relation queries the response was YES. [2023-11-29 01:50:59,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72349 conditions, 18550 events. 6354/18550 cut-off events. For 157430/158629 co-relation queries the response was YES. Maximal size of possible extension queue 723. Compared 193925 event pairs, 1722 based on Foata normal form. 415/16383 useless extension candidates. Maximal degree in co-relation 71913. Up to 6569 conditions per place. [2023-11-29 01:50:59,425 INFO L140 encePairwiseOnDemand]: 258/275 looper letters, 322 selfloop transitions, 324 changer transitions 0/760 dead transitions. [2023-11-29 01:50:59,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 384 places, 760 transitions, 11748 flow [2023-11-29 01:50:59,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 01:50:59,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 01:50:59,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3411 transitions. [2023-11-29 01:50:59,428 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7752272727272728 [2023-11-29 01:50:59,428 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3411 transitions. [2023-11-29 01:50:59,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3411 transitions. [2023-11-29 01:50:59,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:50:59,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3411 transitions. [2023-11-29 01:50:59,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 213.1875) internal successors, (3411), 16 states have internal predecessors, (3411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:59,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 275.0) internal successors, (4675), 17 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:59,437 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 275.0) internal successors, (4675), 17 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:50:59,437 INFO L175 Difference]: Start difference. First operand has 369 places, 576 transitions, 8272 flow. Second operand 16 states and 3411 transitions. [2023-11-29 01:50:59,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 384 places, 760 transitions, 11748 flow [2023-11-29 01:51:00,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 760 transitions, 11518 flow, removed 94 selfloop flow, removed 2 redundant places. [2023-11-29 01:51:00,110 INFO L231 Difference]: Finished difference. Result has 393 places, 644 transitions, 10693 flow [2023-11-29 01:51:00,111 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=8115, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=576, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=264, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=10693, PETRI_PLACES=393, PETRI_TRANSITIONS=644} [2023-11-29 01:51:00,111 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 215 predicate places. [2023-11-29 01:51:00,112 INFO L495 AbstractCegarLoop]: Abstraction has has 393 places, 644 transitions, 10693 flow [2023-11-29 01:51:00,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:51:00,112 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:51:00,112 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:51:00,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 01:51:00,112 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:51:00,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:51:00,113 INFO L85 PathProgramCache]: Analyzing trace with hash 239664999, now seen corresponding path program 8 times [2023-11-29 01:51:00,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:51:00,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817961706] [2023-11-29 01:51:00,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:51:00,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:51:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:51:00,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:51:00,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:51:00,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817961706] [2023-11-29 01:51:00,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817961706] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:51:00,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:51:00,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:51:00,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981553327] [2023-11-29 01:51:00,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:51:00,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:51:00,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:51:00,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:51:00,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:51:02,723 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 275 [2023-11-29 01:51:02,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 644 transitions, 10693 flow. Second operand has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:51:02,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:51:02,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 275 [2023-11-29 01:51:02,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:51:08,370 INFO L124 PetriNetUnfolderBase]: 6691/19635 cut-off events. [2023-11-29 01:51:08,370 INFO L125 PetriNetUnfolderBase]: For 204164/205512 co-relation queries the response was YES. [2023-11-29 01:51:08,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80944 conditions, 19635 events. 6691/19635 cut-off events. For 204164/205512 co-relation queries the response was YES. Maximal size of possible extension queue 768. Compared 208143 event pairs, 1832 based on Foata normal form. 448/17362 useless extension candidates. Maximal degree in co-relation 80459. Up to 6861 conditions per place. [2023-11-29 01:51:08,652 INFO L140 encePairwiseOnDemand]: 258/275 looper letters, 313 selfloop transitions, 368 changer transitions 0/795 dead transitions. [2023-11-29 01:51:08,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 795 transitions, 14157 flow [2023-11-29 01:51:08,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 01:51:08,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 01:51:08,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3391 transitions. [2023-11-29 01:51:08,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7706818181818181 [2023-11-29 01:51:08,655 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3391 transitions. [2023-11-29 01:51:08,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3391 transitions. [2023-11-29 01:51:08,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:51:08,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3391 transitions. [2023-11-29 01:51:08,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 211.9375) internal successors, (3391), 16 states have internal predecessors, (3391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:51:08,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 275.0) internal successors, (4675), 17 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:51:08,662 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 275.0) internal successors, (4675), 17 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:51:08,662 INFO L175 Difference]: Start difference. First operand has 393 places, 644 transitions, 10693 flow. Second operand 16 states and 3391 transitions. [2023-11-29 01:51:08,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 795 transitions, 14157 flow [2023-11-29 01:51:09,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 795 transitions, 14011 flow, removed 61 selfloop flow, removed 1 redundant places. [2023-11-29 01:51:09,588 INFO L231 Difference]: Finished difference. Result has 419 places, 697 transitions, 13321 flow [2023-11-29 01:51:09,589 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=10588, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=644, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=323, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=13321, PETRI_PLACES=419, PETRI_TRANSITIONS=697} [2023-11-29 01:51:09,589 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 241 predicate places. [2023-11-29 01:51:09,589 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 697 transitions, 13321 flow [2023-11-29 01:51:09,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:51:09,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:51:09,590 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:51:09,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 01:51:09,590 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:51:09,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:51:09,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1444880893, now seen corresponding path program 9 times [2023-11-29 01:51:09,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:51:09,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349329764] [2023-11-29 01:51:09,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:51:09,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:51:09,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:51:10,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:51:10,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:51:10,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349329764] [2023-11-29 01:51:10,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349329764] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:51:10,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:51:10,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:51:10,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235687085] [2023-11-29 01:51:10,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:51:10,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:51:10,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:51:10,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:51:10,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:51:11,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 275 [2023-11-29 01:51:11,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 697 transitions, 13321 flow. Second operand has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:51:11,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:51:11,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 275 [2023-11-29 01:51:11,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:51:18,094 INFO L124 PetriNetUnfolderBase]: 7362/20941 cut-off events. [2023-11-29 01:51:18,094 INFO L125 PetriNetUnfolderBase]: For 259559/261722 co-relation queries the response was YES. [2023-11-29 01:51:18,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93569 conditions, 20941 events. 7362/20941 cut-off events. For 259559/261722 co-relation queries the response was YES. Maximal size of possible extension queue 808. Compared 222447 event pairs, 2377 based on Foata normal form. 242/18105 useless extension candidates. Maximal degree in co-relation 93033. Up to 7772 conditions per place. [2023-11-29 01:51:18,425 INFO L140 encePairwiseOnDemand]: 258/275 looper letters, 374 selfloop transitions, 356 changer transitions 0/844 dead transitions. [2023-11-29 01:51:18,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 844 transitions, 17212 flow [2023-11-29 01:51:18,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 01:51:18,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-29 01:51:18,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3363 transitions. [2023-11-29 01:51:18,429 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7643181818181818 [2023-11-29 01:51:18,429 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3363 transitions. [2023-11-29 01:51:18,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3363 transitions. [2023-11-29 01:51:18,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:51:18,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3363 transitions. [2023-11-29 01:51:18,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 210.1875) internal successors, (3363), 16 states have internal predecessors, (3363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:51:18,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 275.0) internal successors, (4675), 17 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:51:18,436 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 275.0) internal successors, (4675), 17 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:51:18,437 INFO L175 Difference]: Start difference. First operand has 419 places, 697 transitions, 13321 flow. Second operand 16 states and 3363 transitions. [2023-11-29 01:51:18,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 844 transitions, 17212 flow [2023-11-29 01:51:19,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 844 transitions, 17082 flow, removed 65 selfloop flow, removed 0 redundant places. [2023-11-29 01:51:20,013 INFO L231 Difference]: Finished difference. Result has 446 places, 753 transitions, 16081 flow [2023-11-29 01:51:20,014 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=13203, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=697, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=300, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=16081, PETRI_PLACES=446, PETRI_TRANSITIONS=753} [2023-11-29 01:51:20,015 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 268 predicate places. [2023-11-29 01:51:20,015 INFO L495 AbstractCegarLoop]: Abstraction has has 446 places, 753 transitions, 16081 flow [2023-11-29 01:51:20,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:51:20,016 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:51:20,016 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:51:20,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 01:51:20,016 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:51:20,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:51:20,017 INFO L85 PathProgramCache]: Analyzing trace with hash -15538260, now seen corresponding path program 1 times [2023-11-29 01:51:20,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:51:20,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304350835] [2023-11-29 01:51:20,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:51:20,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:51:20,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:51:20,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:51:20,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:51:20,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304350835] [2023-11-29 01:51:20,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304350835] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:51:20,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:51:20,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:51:20,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331033727] [2023-11-29 01:51:20,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:51:20,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:51:20,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:51:20,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:51:20,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:51:22,782 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 275 [2023-11-29 01:51:22,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 753 transitions, 16081 flow. Second operand has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:51:22,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:51:22,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 275 [2023-11-29 01:51:22,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:51:30,041 INFO L124 PetriNetUnfolderBase]: 7378/22262 cut-off events. [2023-11-29 01:51:30,041 INFO L125 PetriNetUnfolderBase]: For 308893/310461 co-relation queries the response was YES. [2023-11-29 01:51:30,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99621 conditions, 22262 events. 7378/22262 cut-off events. For 308893/310461 co-relation queries the response was YES. Maximal size of possible extension queue 877. Compared 245069 event pairs, 2077 based on Foata normal form. 478/19637 useless extension candidates. Maximal degree in co-relation 99034. Up to 7393 conditions per place. [2023-11-29 01:51:30,407 INFO L140 encePairwiseOnDemand]: 258/275 looper letters, 394 selfloop transitions, 415 changer transitions 0/923 dead transitions. [2023-11-29 01:51:30,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 923 transitions, 19661 flow [2023-11-29 01:51:30,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 01:51:30,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-29 01:51:30,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 4248 transitions. [2023-11-29 01:51:30,413 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7723636363636364 [2023-11-29 01:51:30,413 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 4248 transitions. [2023-11-29 01:51:30,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 4248 transitions. [2023-11-29 01:51:30,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:51:30,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 4248 transitions. [2023-11-29 01:51:30,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 212.4) internal successors, (4248), 20 states have internal predecessors, (4248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:51:30,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 275.0) internal successors, (5775), 21 states have internal predecessors, (5775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:51:30,425 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 275.0) internal successors, (5775), 21 states have internal predecessors, (5775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:51:30,425 INFO L175 Difference]: Start difference. First operand has 446 places, 753 transitions, 16081 flow. Second operand 20 states and 4248 transitions. [2023-11-29 01:51:30,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 923 transitions, 19661 flow [2023-11-29 01:51:31,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 923 transitions, 19567 flow, removed 47 selfloop flow, removed 0 redundant places. [2023-11-29 01:51:31,969 INFO L231 Difference]: Finished difference. Result has 474 places, 790 transitions, 18278 flow [2023-11-29 01:51:31,969 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=15997, PETRI_DIFFERENCE_MINUEND_PLACES=446, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=753, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=378, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=18278, PETRI_PLACES=474, PETRI_TRANSITIONS=790} [2023-11-29 01:51:31,970 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 296 predicate places. [2023-11-29 01:51:31,970 INFO L495 AbstractCegarLoop]: Abstraction has has 474 places, 790 transitions, 18278 flow [2023-11-29 01:51:31,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:51:31,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:51:31,971 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:51:31,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 01:51:31,971 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:51:31,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:51:31,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1640216878, now seen corresponding path program 2 times [2023-11-29 01:51:31,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:51:31,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085150155] [2023-11-29 01:51:31,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:51:31,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:51:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:51:32,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:51:32,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:51:32,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085150155] [2023-11-29 01:51:32,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085150155] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:51:32,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:51:32,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:51:32,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735585071] [2023-11-29 01:51:32,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:51:32,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:51:32,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:51:32,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:51:32,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:51:34,409 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 275 [2023-11-29 01:51:34,411 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 790 transitions, 18278 flow. Second operand has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:51:34,411 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:51:34,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 275 [2023-11-29 01:51:34,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:51:42,559 INFO L124 PetriNetUnfolderBase]: 7769/23565 cut-off events. [2023-11-29 01:51:42,559 INFO L125 PetriNetUnfolderBase]: For 395594/397241 co-relation queries the response was YES. [2023-11-29 01:51:42,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111239 conditions, 23565 events. 7769/23565 cut-off events. For 395594/397241 co-relation queries the response was YES. Maximal size of possible extension queue 916. Compared 261741 event pairs, 2197 based on Foata normal form. 481/20763 useless extension candidates. Maximal degree in co-relation 110621. Up to 7159 conditions per place. [2023-11-29 01:51:43,195 INFO L140 encePairwiseOnDemand]: 258/275 looper letters, 423 selfloop transitions, 469 changer transitions 0/1006 dead transitions. [2023-11-29 01:51:43,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 1006 transitions, 23557 flow [2023-11-29 01:51:43,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 01:51:43,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-29 01:51:43,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4871 transitions. [2023-11-29 01:51:43,200 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7701185770750988 [2023-11-29 01:51:43,200 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4871 transitions. [2023-11-29 01:51:43,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4871 transitions. [2023-11-29 01:51:43,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:51:43,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4871 transitions. [2023-11-29 01:51:43,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 211.7826086956522) internal successors, (4871), 23 states have internal predecessors, (4871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:51:43,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 275.0) internal successors, (6600), 24 states have internal predecessors, (6600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:51:43,211 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 275.0) internal successors, (6600), 24 states have internal predecessors, (6600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:51:43,211 INFO L175 Difference]: Start difference. First operand has 474 places, 790 transitions, 18278 flow. Second operand 23 states and 4871 transitions. [2023-11-29 01:51:43,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 1006 transitions, 23557 flow [2023-11-29 01:51:45,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 490 places, 1006 transitions, 23343 flow, removed 66 selfloop flow, removed 6 redundant places. [2023-11-29 01:51:45,286 INFO L231 Difference]: Finished difference. Result has 504 places, 848 transitions, 21373 flow [2023-11-29 01:51:45,288 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=18094, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=790, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=413, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=21373, PETRI_PLACES=504, PETRI_TRANSITIONS=848} [2023-11-29 01:51:45,288 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 326 predicate places. [2023-11-29 01:51:45,288 INFO L495 AbstractCegarLoop]: Abstraction has has 504 places, 848 transitions, 21373 flow [2023-11-29 01:51:45,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:51:45,289 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:51:45,289 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:51:45,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 01:51:45,289 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:51:45,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:51:45,289 INFO L85 PathProgramCache]: Analyzing trace with hash 835343196, now seen corresponding path program 3 times [2023-11-29 01:51:45,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:51:45,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837077972] [2023-11-29 01:51:45,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:51:45,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:51:45,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:51:45,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:51:45,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:51:45,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837077972] [2023-11-29 01:51:45,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837077972] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:51:45,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:51:45,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:51:45,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805674716] [2023-11-29 01:51:45,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:51:45,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:51:45,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:51:45,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:51:45,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:51:47,844 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 275 [2023-11-29 01:51:47,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 848 transitions, 21373 flow. Second operand has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:51:47,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:51:47,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 275 [2023-11-29 01:51:47,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:51:56,632 INFO L124 PetriNetUnfolderBase]: 7793/23784 cut-off events. [2023-11-29 01:51:56,632 INFO L125 PetriNetUnfolderBase]: For 435210/436794 co-relation queries the response was YES. [2023-11-29 01:51:57,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116919 conditions, 23784 events. 7793/23784 cut-off events. For 435210/436794 co-relation queries the response was YES. Maximal size of possible extension queue 934. Compared 265915 event pairs, 2156 based on Foata normal form. 472/20956 useless extension candidates. Maximal degree in co-relation 116263. Up to 7741 conditions per place. [2023-11-29 01:51:57,282 INFO L140 encePairwiseOnDemand]: 258/275 looper letters, 388 selfloop transitions, 494 changer transitions 0/996 dead transitions. [2023-11-29 01:51:57,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 996 transitions, 25247 flow [2023-11-29 01:51:57,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 01:51:57,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-29 01:51:57,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3818 transitions. [2023-11-29 01:51:57,286 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7713131313131313 [2023-11-29 01:51:57,286 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3818 transitions. [2023-11-29 01:51:57,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3818 transitions. [2023-11-29 01:51:57,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:51:57,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3818 transitions. [2023-11-29 01:51:57,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 212.11111111111111) internal successors, (3818), 18 states have internal predecessors, (3818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:51:57,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 275.0) internal successors, (5225), 19 states have internal predecessors, (5225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:51:57,293 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 275.0) internal successors, (5225), 19 states have internal predecessors, (5225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:51:57,293 INFO L175 Difference]: Start difference. First operand has 504 places, 848 transitions, 21373 flow. Second operand 18 states and 3818 transitions. [2023-11-29 01:51:57,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 996 transitions, 25247 flow [2023-11-29 01:51:59,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 520 places, 996 transitions, 24977 flow, removed 124 selfloop flow, removed 1 redundant places. [2023-11-29 01:51:59,769 INFO L231 Difference]: Finished difference. Result has 529 places, 883 transitions, 23928 flow [2023-11-29 01:51:59,769 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=21129, PETRI_DIFFERENCE_MINUEND_PLACES=503, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=848, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=459, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=23928, PETRI_PLACES=529, PETRI_TRANSITIONS=883} [2023-11-29 01:51:59,770 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 351 predicate places. [2023-11-29 01:51:59,770 INFO L495 AbstractCegarLoop]: Abstraction has has 529 places, 883 transitions, 23928 flow [2023-11-29 01:51:59,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:51:59,770 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:51:59,770 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:51:59,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 01:51:59,770 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:51:59,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:51:59,771 INFO L85 PathProgramCache]: Analyzing trace with hash 273286164, now seen corresponding path program 4 times [2023-11-29 01:51:59,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:51:59,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958753869] [2023-11-29 01:51:59,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:51:59,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:51:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:52:00,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:52:00,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:52:00,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958753869] [2023-11-29 01:52:00,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958753869] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:52:00,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:52:00,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:52:00,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576249527] [2023-11-29 01:52:00,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:52:00,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:52:00,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:52:00,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:52:00,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:52:02,566 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 275 [2023-11-29 01:52:02,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 883 transitions, 23928 flow. Second operand has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:52:02,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:52:02,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 275 [2023-11-29 01:52:02,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:52:13,738 INFO L124 PetriNetUnfolderBase]: 9375/28874 cut-off events. [2023-11-29 01:52:13,738 INFO L125 PetriNetUnfolderBase]: For 625466/627372 co-relation queries the response was YES. [2023-11-29 01:52:14,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145974 conditions, 28874 events. 9375/28874 cut-off events. For 625466/627372 co-relation queries the response was YES. Maximal size of possible extension queue 1131. Compared 334706 event pairs, 2581 based on Foata normal form. 738/25613 useless extension candidates. Maximal degree in co-relation 145265. Up to 7489 conditions per place. [2023-11-29 01:52:14,289 INFO L140 encePairwiseOnDemand]: 257/275 looper letters, 549 selfloop transitions, 542 changer transitions 0/1205 dead transitions. [2023-11-29 01:52:14,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 551 places, 1205 transitions, 32167 flow [2023-11-29 01:52:14,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 01:52:14,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-29 01:52:14,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4888 transitions. [2023-11-29 01:52:14,296 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.772806324110672 [2023-11-29 01:52:14,296 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4888 transitions. [2023-11-29 01:52:14,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4888 transitions. [2023-11-29 01:52:14,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:52:14,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4888 transitions. [2023-11-29 01:52:14,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 212.52173913043478) internal successors, (4888), 23 states have internal predecessors, (4888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:52:14,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 275.0) internal successors, (6600), 24 states have internal predecessors, (6600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:52:14,310 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 275.0) internal successors, (6600), 24 states have internal predecessors, (6600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:52:14,310 INFO L175 Difference]: Start difference. First operand has 529 places, 883 transitions, 23928 flow. Second operand 23 states and 4888 transitions. [2023-11-29 01:52:14,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 551 places, 1205 transitions, 32167 flow [2023-11-29 01:52:18,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 545 places, 1205 transitions, 31947 flow, removed 67 selfloop flow, removed 6 redundant places. [2023-11-29 01:52:18,453 INFO L231 Difference]: Finished difference. Result has 562 places, 1034 transitions, 30593 flow [2023-11-29 01:52:18,454 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=23769, PETRI_DIFFERENCE_MINUEND_PLACES=523, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=883, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=408, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=30593, PETRI_PLACES=562, PETRI_TRANSITIONS=1034} [2023-11-29 01:52:18,455 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 384 predicate places. [2023-11-29 01:52:18,455 INFO L495 AbstractCegarLoop]: Abstraction has has 562 places, 1034 transitions, 30593 flow [2023-11-29 01:52:18,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:52:18,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:52:18,456 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:52:18,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 01:52:18,456 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:52:18,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:52:18,457 INFO L85 PathProgramCache]: Analyzing trace with hash 231263498, now seen corresponding path program 5 times [2023-11-29 01:52:18,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:52:18,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312673759] [2023-11-29 01:52:18,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:52:18,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:52:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:52:18,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:52:18,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:52:18,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312673759] [2023-11-29 01:52:18,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312673759] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:52:18,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:52:18,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:52:18,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267617874] [2023-11-29 01:52:18,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:52:18,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:52:18,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:52:18,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:52:18,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:52:20,940 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 275 [2023-11-29 01:52:20,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 562 places, 1034 transitions, 30593 flow. Second operand has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:52:20,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:52:20,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 275 [2023-11-29 01:52:20,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:52:35,569 INFO L124 PetriNetUnfolderBase]: 10386/30214 cut-off events. [2023-11-29 01:52:35,569 INFO L125 PetriNetUnfolderBase]: For 767425/770211 co-relation queries the response was YES. [2023-11-29 01:52:36,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167410 conditions, 30214 events. 10386/30214 cut-off events. For 767425/770211 co-relation queries the response was YES. Maximal size of possible extension queue 1165. Compared 344264 event pairs, 3264 based on Foata normal form. 358/26157 useless extension candidates. Maximal degree in co-relation 166670. Up to 9780 conditions per place. [2023-11-29 01:52:36,586 INFO L140 encePairwiseOnDemand]: 258/275 looper letters, 617 selfloop transitions, 551 changer transitions 0/1282 dead transitions. [2023-11-29 01:52:36,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 587 places, 1282 transitions, 38055 flow [2023-11-29 01:52:36,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 01:52:36,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-11-29 01:52:36,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 5480 transitions. [2023-11-29 01:52:36,594 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7664335664335664 [2023-11-29 01:52:36,595 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 5480 transitions. [2023-11-29 01:52:36,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 5480 transitions. [2023-11-29 01:52:36,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:52:36,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 5480 transitions. [2023-11-29 01:52:36,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 210.76923076923077) internal successors, (5480), 26 states have internal predecessors, (5480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:52:36,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 275.0) internal successors, (7425), 27 states have internal predecessors, (7425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:52:36,613 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 275.0) internal successors, (7425), 27 states have internal predecessors, (7425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:52:36,614 INFO L175 Difference]: Start difference. First operand has 562 places, 1034 transitions, 30593 flow. Second operand 26 states and 5480 transitions. [2023-11-29 01:52:36,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 587 places, 1282 transitions, 38055 flow [2023-11-29 01:52:43,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 586 places, 1282 transitions, 37605 flow, removed 206 selfloop flow, removed 1 redundant places. [2023-11-29 01:52:43,500 INFO L231 Difference]: Finished difference. Result has 603 places, 1086 transitions, 33566 flow [2023-11-29 01:52:43,501 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=30179, PETRI_DIFFERENCE_MINUEND_PLACES=561, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1034, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=503, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=509, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=33566, PETRI_PLACES=603, PETRI_TRANSITIONS=1086} [2023-11-29 01:52:43,502 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 425 predicate places. [2023-11-29 01:52:43,502 INFO L495 AbstractCegarLoop]: Abstraction has has 603 places, 1086 transitions, 33566 flow [2023-11-29 01:52:43,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:52:43,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:52:43,502 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:52:43,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 01:52:43,503 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:52:43,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:52:43,503 INFO L85 PathProgramCache]: Analyzing trace with hash -960733176, now seen corresponding path program 6 times [2023-11-29 01:52:43,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:52:43,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495073016] [2023-11-29 01:52:43,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:52:43,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:52:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:52:43,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:52:43,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:52:43,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495073016] [2023-11-29 01:52:43,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495073016] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:52:43,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:52:43,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:52:43,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767182211] [2023-11-29 01:52:43,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:52:43,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:52:43,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:52:43,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:52:43,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:52:45,858 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 275 [2023-11-29 01:52:45,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 603 places, 1086 transitions, 33566 flow. Second operand has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:52:45,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:52:45,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 275 [2023-11-29 01:52:45,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:53:03,675 INFO L124 PetriNetUnfolderBase]: 11029/32478 cut-off events. [2023-11-29 01:53:03,676 INFO L125 PetriNetUnfolderBase]: For 914828/917182 co-relation queries the response was YES. [2023-11-29 01:53:04,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181839 conditions, 32478 events. 11029/32478 cut-off events. For 914828/917182 co-relation queries the response was YES. Maximal size of possible extension queue 1257. Compared 374571 event pairs, 3459 based on Foata normal form. 482/28145 useless extension candidates. Maximal degree in co-relation 180827. Up to 7741 conditions per place. [2023-11-29 01:53:04,800 INFO L140 encePairwiseOnDemand]: 257/275 looper letters, 907 selfloop transitions, 442 changer transitions 0/1463 dead transitions. [2023-11-29 01:53:04,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 636 places, 1463 transitions, 41895 flow [2023-11-29 01:53:04,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-29 01:53:04,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2023-11-29 01:53:04,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 7237 transitions. [2023-11-29 01:53:04,810 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7740106951871658 [2023-11-29 01:53:04,811 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 7237 transitions. [2023-11-29 01:53:04,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 7237 transitions. [2023-11-29 01:53:04,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:53:04,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 7237 transitions. [2023-11-29 01:53:04,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 212.85294117647058) internal successors, (7237), 34 states have internal predecessors, (7237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:53:04,824 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 275.0) internal successors, (9625), 35 states have internal predecessors, (9625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:53:04,826 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 275.0) internal successors, (9625), 35 states have internal predecessors, (9625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:53:04,826 INFO L175 Difference]: Start difference. First operand has 603 places, 1086 transitions, 33566 flow. Second operand 34 states and 7237 transitions. [2023-11-29 01:53:04,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 636 places, 1463 transitions, 41895 flow [2023-11-29 01:53:13,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 635 places, 1463 transitions, 41456 flow, removed 181 selfloop flow, removed 1 redundant places. [2023-11-29 01:53:13,620 INFO L231 Difference]: Finished difference. Result has 656 places, 1171 transitions, 37534 flow [2023-11-29 01:53:13,621 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=33176, PETRI_DIFFERENCE_MINUEND_PLACES=602, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1086, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=363, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=682, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=37534, PETRI_PLACES=656, PETRI_TRANSITIONS=1171} [2023-11-29 01:53:13,622 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 478 predicate places. [2023-11-29 01:53:13,622 INFO L495 AbstractCegarLoop]: Abstraction has has 656 places, 1171 transitions, 37534 flow [2023-11-29 01:53:13,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:53:13,622 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:53:13,622 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:53:13,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 01:53:13,623 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:53:13,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:53:13,623 INFO L85 PathProgramCache]: Analyzing trace with hash -44465068, now seen corresponding path program 7 times [2023-11-29 01:53:13,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:53:13,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800148262] [2023-11-29 01:53:13,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:53:13,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:53:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:53:14,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:53:14,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:53:14,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800148262] [2023-11-29 01:53:14,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800148262] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:53:14,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:53:14,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:53:14,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124598740] [2023-11-29 01:53:14,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:53:14,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:53:14,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:53:14,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:53:14,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:53:16,301 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 275 [2023-11-29 01:53:16,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 656 places, 1171 transitions, 37534 flow. Second operand has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:53:16,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:53:16,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 275 [2023-11-29 01:53:16,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:53:34,683 INFO L124 PetriNetUnfolderBase]: 11405/33282 cut-off events. [2023-11-29 01:53:34,683 INFO L125 PetriNetUnfolderBase]: For 1047059/1050146 co-relation queries the response was YES. [2023-11-29 01:53:35,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194474 conditions, 33282 events. 11405/33282 cut-off events. For 1047059/1050146 co-relation queries the response was YES. Maximal size of possible extension queue 1277. Compared 385460 event pairs, 3577 based on Foata normal form. 501/28903 useless extension candidates. Maximal degree in co-relation 193428. Up to 11172 conditions per place. [2023-11-29 01:53:36,181 INFO L140 encePairwiseOnDemand]: 258/275 looper letters, 639 selfloop transitions, 623 changer transitions 0/1376 dead transitions. [2023-11-29 01:53:36,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 678 places, 1376 transitions, 44875 flow [2023-11-29 01:53:36,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 01:53:36,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-29 01:53:36,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4843 transitions. [2023-11-29 01:53:36,186 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.765691699604743 [2023-11-29 01:53:36,186 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4843 transitions. [2023-11-29 01:53:36,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4843 transitions. [2023-11-29 01:53:36,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:53:36,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4843 transitions. [2023-11-29 01:53:36,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 210.56521739130434) internal successors, (4843), 23 states have internal predecessors, (4843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:53:36,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 275.0) internal successors, (6600), 24 states have internal predecessors, (6600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:53:36,195 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 275.0) internal successors, (6600), 24 states have internal predecessors, (6600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:53:36,196 INFO L175 Difference]: Start difference. First operand has 656 places, 1171 transitions, 37534 flow. Second operand 23 states and 4843 transitions. [2023-11-29 01:53:36,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 678 places, 1376 transitions, 44875 flow [2023-11-29 01:53:47,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 671 places, 1376 transitions, 44267 flow, removed 246 selfloop flow, removed 7 redundant places. [2023-11-29 01:53:47,347 INFO L231 Difference]: Finished difference. Result has 684 places, 1211 transitions, 40417 flow [2023-11-29 01:53:47,348 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=37021, PETRI_DIFFERENCE_MINUEND_PLACES=649, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=583, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=565, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=40417, PETRI_PLACES=684, PETRI_TRANSITIONS=1211} [2023-11-29 01:53:47,348 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 506 predicate places. [2023-11-29 01:53:47,348 INFO L495 AbstractCegarLoop]: Abstraction has has 684 places, 1211 transitions, 40417 flow [2023-11-29 01:53:47,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:53:47,349 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:53:47,349 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:53:47,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 01:53:47,349 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:53:47,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:53:47,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1239676210, now seen corresponding path program 8 times [2023-11-29 01:53:47,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:53:47,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487046350] [2023-11-29 01:53:47,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:53:47,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:53:47,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:53:47,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:53:47,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:53:47,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487046350] [2023-11-29 01:53:47,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487046350] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:53:47,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:53:47,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:53:47,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592253282] [2023-11-29 01:53:47,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:53:47,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:53:47,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:53:47,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:53:47,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:53:49,733 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 275 [2023-11-29 01:53:49,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 684 places, 1211 transitions, 40417 flow. Second operand has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:53:49,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:53:49,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 275 [2023-11-29 01:53:49,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:54:08,672 INFO L124 PetriNetUnfolderBase]: 11430/33585 cut-off events. [2023-11-29 01:54:08,672 INFO L125 PetriNetUnfolderBase]: For 1123548/1126673 co-relation queries the response was YES. [2023-11-29 01:54:09,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199892 conditions, 33585 events. 11430/33585 cut-off events. For 1123548/1126673 co-relation queries the response was YES. Maximal size of possible extension queue 1294. Compared 391302 event pairs, 3590 based on Foata normal form. 474/29144 useless extension candidates. Maximal degree in co-relation 199335. Up to 11772 conditions per place. [2023-11-29 01:54:09,839 INFO L140 encePairwiseOnDemand]: 258/275 looper letters, 601 selfloop transitions, 634 changer transitions 0/1349 dead transitions. [2023-11-29 01:54:09,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 701 places, 1349 transitions, 45645 flow [2023-11-29 01:54:09,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 01:54:09,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-29 01:54:09,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3790 transitions. [2023-11-29 01:54:09,842 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7656565656565657 [2023-11-29 01:54:09,842 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3790 transitions. [2023-11-29 01:54:09,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3790 transitions. [2023-11-29 01:54:09,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:54:09,843 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3790 transitions. [2023-11-29 01:54:09,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 210.55555555555554) internal successors, (3790), 18 states have internal predecessors, (3790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:54:09,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 275.0) internal successors, (5225), 19 states have internal predecessors, (5225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:54:09,849 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 275.0) internal successors, (5225), 19 states have internal predecessors, (5225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:54:09,849 INFO L175 Difference]: Start difference. First operand has 684 places, 1211 transitions, 40417 flow. Second operand 18 states and 3790 transitions. [2023-11-29 01:54:09,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 701 places, 1349 transitions, 45645 flow [2023-11-29 01:54:20,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 699 places, 1349 transitions, 45169 flow, removed 233 selfloop flow, removed 2 redundant places. [2023-11-29 01:54:20,789 INFO L231 Difference]: Finished difference. Result has 707 places, 1237 transitions, 43106 flow [2023-11-29 01:54:20,791 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=39989, PETRI_DIFFERENCE_MINUEND_PLACES=682, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=608, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=43106, PETRI_PLACES=707, PETRI_TRANSITIONS=1237} [2023-11-29 01:54:20,791 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 529 predicate places. [2023-11-29 01:54:20,791 INFO L495 AbstractCegarLoop]: Abstraction has has 707 places, 1237 transitions, 43106 flow [2023-11-29 01:54:20,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:54:20,792 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:54:20,792 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:54:20,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 01:54:20,792 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:54:20,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:54:20,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1401599912, now seen corresponding path program 9 times [2023-11-29 01:54:20,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:54:20,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2318943] [2023-11-29 01:54:20,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:54:20,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:54:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:54:21,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:54:21,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:54:21,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2318943] [2023-11-29 01:54:21,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2318943] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:54:21,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:54:21,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:54:21,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820402846] [2023-11-29 01:54:21,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:54:21,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:54:21,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:54:21,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:54:21,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:54:23,667 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 275 [2023-11-29 01:54:23,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 707 places, 1237 transitions, 43106 flow. Second operand has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:54:23,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:54:23,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 275 [2023-11-29 01:54:23,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:54:47,240 INFO L124 PetriNetUnfolderBase]: 12322/37134 cut-off events. [2023-11-29 01:54:47,240 INFO L125 PetriNetUnfolderBase]: For 1421730/1424598 co-relation queries the response was YES. [2023-11-29 01:54:48,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221654 conditions, 37134 events. 12322/37134 cut-off events. For 1421730/1424598 co-relation queries the response was YES. Maximal size of possible extension queue 1443. Compared 443745 event pairs, 3643 based on Foata normal form. 1029/32880 useless extension candidates. Maximal degree in co-relation 221105. Up to 8645 conditions per place. [2023-11-29 01:54:48,599 INFO L140 encePairwiseOnDemand]: 257/275 looper letters, 908 selfloop transitions, 597 changer transitions 0/1619 dead transitions. [2023-11-29 01:54:48,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 738 places, 1619 transitions, 52693 flow [2023-11-29 01:54:48,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 01:54:48,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-11-29 01:54:48,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 6841 transitions. [2023-11-29 01:54:48,607 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7773863636363636 [2023-11-29 01:54:48,607 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 6841 transitions. [2023-11-29 01:54:48,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 6841 transitions. [2023-11-29 01:54:48,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:54:48,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 6841 transitions. [2023-11-29 01:54:48,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 213.78125) internal successors, (6841), 32 states have internal predecessors, (6841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:54:48,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 275.0) internal successors, (9075), 33 states have internal predecessors, (9075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:54:48,622 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 275.0) internal successors, (9075), 33 states have internal predecessors, (9075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:54:48,622 INFO L175 Difference]: Start difference. First operand has 707 places, 1237 transitions, 43106 flow. Second operand 32 states and 6841 transitions. [2023-11-29 01:54:48,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 738 places, 1619 transitions, 52693 flow [2023-11-29 01:55:00,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 732 places, 1619 transitions, 52310 flow, removed 95 selfloop flow, removed 6 redundant places. [2023-11-29 01:55:00,686 INFO L231 Difference]: Finished difference. Result has 749 places, 1320 transitions, 48037 flow [2023-11-29 01:55:00,687 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=42819, PETRI_DIFFERENCE_MINUEND_PLACES=701, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=525, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=667, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=48037, PETRI_PLACES=749, PETRI_TRANSITIONS=1320} [2023-11-29 01:55:00,687 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 571 predicate places. [2023-11-29 01:55:00,687 INFO L495 AbstractCegarLoop]: Abstraction has has 749 places, 1320 transitions, 48037 flow [2023-11-29 01:55:00,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:55:00,688 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:55:00,688 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:55:00,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 01:55:00,688 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:55:00,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:55:00,688 INFO L85 PathProgramCache]: Analyzing trace with hash 269775656, now seen corresponding path program 10 times [2023-11-29 01:55:00,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:55:00,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069791956] [2023-11-29 01:55:00,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:55:00,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:55:00,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:55:01,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:55:01,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:55:01,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069791956] [2023-11-29 01:55:01,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069791956] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:55:01,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:55:01,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:55:01,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863269839] [2023-11-29 01:55:01,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:55:01,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:55:01,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:55:01,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:55:01,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:55:03,636 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 275 [2023-11-29 01:55:03,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 749 places, 1320 transitions, 48037 flow. Second operand has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:55:03,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:55:03,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 275 [2023-11-29 01:55:03,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:55:29,391 INFO L124 PetriNetUnfolderBase]: 12681/39581 cut-off events. [2023-11-29 01:55:29,392 INFO L125 PetriNetUnfolderBase]: For 1664803/1667944 co-relation queries the response was YES. [2023-11-29 01:55:30,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236509 conditions, 39581 events. 12681/39581 cut-off events. For 1664803/1667944 co-relation queries the response was YES. Maximal size of possible extension queue 1548. Compared 485096 event pairs, 3532 based on Foata normal form. 1581/35771 useless extension candidates. Maximal degree in co-relation 235932. Up to 12276 conditions per place. [2023-11-29 01:55:31,166 INFO L140 encePairwiseOnDemand]: 257/275 looper letters, 675 selfloop transitions, 759 changer transitions 0/1548 dead transitions. [2023-11-29 01:55:31,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 771 places, 1548 transitions, 55124 flow [2023-11-29 01:55:31,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 01:55:31,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-29 01:55:31,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4893 transitions. [2023-11-29 01:55:31,170 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.773596837944664 [2023-11-29 01:55:31,170 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4893 transitions. [2023-11-29 01:55:31,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4893 transitions. [2023-11-29 01:55:31,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:55:31,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4893 transitions. [2023-11-29 01:55:31,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 212.7391304347826) internal successors, (4893), 23 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:55:31,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 275.0) internal successors, (6600), 24 states have internal predecessors, (6600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:55:31,179 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 275.0) internal successors, (6600), 24 states have internal predecessors, (6600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:55:31,179 INFO L175 Difference]: Start difference. First operand has 749 places, 1320 transitions, 48037 flow. Second operand 23 states and 4893 transitions. [2023-11-29 01:55:31,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 771 places, 1548 transitions, 55124 flow [2023-11-29 01:55:44,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 765 places, 1548 transitions, 54480 flow, removed 278 selfloop flow, removed 6 redundant places. [2023-11-29 01:55:44,638 INFO L231 Difference]: Finished difference. Result has 782 places, 1394 transitions, 52773 flow [2023-11-29 01:55:44,639 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=47551, PETRI_DIFFERENCE_MINUEND_PLACES=743, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=690, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=578, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=52773, PETRI_PLACES=782, PETRI_TRANSITIONS=1394} [2023-11-29 01:55:44,639 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 604 predicate places. [2023-11-29 01:55:44,640 INFO L495 AbstractCegarLoop]: Abstraction has has 782 places, 1394 transitions, 52773 flow [2023-11-29 01:55:44,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:55:44,640 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:55:44,640 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:55:44,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 01:55:44,640 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:55:44,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:55:44,640 INFO L85 PathProgramCache]: Analyzing trace with hash -427023544, now seen corresponding path program 11 times [2023-11-29 01:55:44,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:55:44,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911994159] [2023-11-29 01:55:44,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:55:44,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:55:44,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:55:45,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:55:45,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:55:45,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911994159] [2023-11-29 01:55:45,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911994159] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:55:45,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:55:45,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:55:45,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794057768] [2023-11-29 01:55:45,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:55:45,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:55:45,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:55:45,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:55:45,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:55:47,520 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 275 [2023-11-29 01:55:47,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 782 places, 1394 transitions, 52773 flow. Second operand has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:55:47,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:55:47,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 275 [2023-11-29 01:55:47,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:56:13,382 INFO L124 PetriNetUnfolderBase]: 12993/40978 cut-off events. [2023-11-29 01:56:13,382 INFO L125 PetriNetUnfolderBase]: For 1900500/1903726 co-relation queries the response was YES. [2023-11-29 01:56:14,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251704 conditions, 40978 events. 12993/40978 cut-off events. For 1900500/1903726 co-relation queries the response was YES. Maximal size of possible extension queue 1601. Compared 507006 event pairs, 3595 based on Foata normal form. 1802/37208 useless extension candidates. Maximal degree in co-relation 251250. Up to 13358 conditions per place. [2023-11-29 01:56:14,944 INFO L140 encePairwiseOnDemand]: 257/275 looper letters, 729 selfloop transitions, 761 changer transitions 0/1604 dead transitions. [2023-11-29 01:56:14,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 801 places, 1604 transitions, 60223 flow [2023-11-29 01:56:14,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 01:56:14,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-29 01:56:14,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 4265 transitions. [2023-11-29 01:56:14,948 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7754545454545455 [2023-11-29 01:56:14,948 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 4265 transitions. [2023-11-29 01:56:14,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 4265 transitions. [2023-11-29 01:56:14,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:56:14,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 4265 transitions. [2023-11-29 01:56:14,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 213.25) internal successors, (4265), 20 states have internal predecessors, (4265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:56:14,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 275.0) internal successors, (5775), 21 states have internal predecessors, (5775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:56:14,955 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 275.0) internal successors, (5775), 21 states have internal predecessors, (5775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:56:14,955 INFO L175 Difference]: Start difference. First operand has 782 places, 1394 transitions, 52773 flow. Second operand 20 states and 4265 transitions. [2023-11-29 01:56:14,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 801 places, 1604 transitions, 60223 flow [2023-11-29 01:56:31,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 796 places, 1604 transitions, 59358 flow, removed 416 selfloop flow, removed 5 redundant places. [2023-11-29 01:56:31,628 INFO L231 Difference]: Finished difference. Result has 803 places, 1463 transitions, 58145 flow [2023-11-29 01:56:31,629 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=52088, PETRI_DIFFERENCE_MINUEND_PLACES=777, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=696, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=639, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=58145, PETRI_PLACES=803, PETRI_TRANSITIONS=1463} [2023-11-29 01:56:31,630 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 625 predicate places. [2023-11-29 01:56:31,630 INFO L495 AbstractCegarLoop]: Abstraction has has 803 places, 1463 transitions, 58145 flow [2023-11-29 01:56:31,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:56:31,630 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:56:31,631 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:56:31,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-29 01:56:31,631 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:56:31,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:56:31,631 INFO L85 PathProgramCache]: Analyzing trace with hash 925484040, now seen corresponding path program 12 times [2023-11-29 01:56:31,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:56:31,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260874921] [2023-11-29 01:56:31,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:56:31,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:56:31,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:56:32,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:56:32,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:56:32,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260874921] [2023-11-29 01:56:32,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260874921] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:56:32,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:56:32,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:56:32,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171653274] [2023-11-29 01:56:32,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:56:32,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:56:32,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:56:32,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:56:32,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:56:34,370 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 275 [2023-11-29 01:56:34,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 803 places, 1463 transitions, 58145 flow. Second operand has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:56:34,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:56:34,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 275 [2023-11-29 01:56:34,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:57:03,304 INFO L124 PetriNetUnfolderBase]: 13366/42203 cut-off events. [2023-11-29 01:57:03,304 INFO L125 PetriNetUnfolderBase]: For 2103383/2106951 co-relation queries the response was YES. [2023-11-29 01:57:04,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266059 conditions, 42203 events. 13366/42203 cut-off events. For 2103383/2106951 co-relation queries the response was YES. Maximal size of possible extension queue 1646. Compared 524730 event pairs, 3676 based on Foata normal form. 2008/38509 useless extension candidates. Maximal degree in co-relation 265687. Up to 14382 conditions per place. [2023-11-29 01:57:05,129 INFO L140 encePairwiseOnDemand]: 257/275 looper letters, 722 selfloop transitions, 802 changer transitions 0/1638 dead transitions. [2023-11-29 01:57:05,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 820 places, 1638 transitions, 64447 flow [2023-11-29 01:57:05,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 01:57:05,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-29 01:57:05,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3860 transitions. [2023-11-29 01:57:05,132 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7797979797979798 [2023-11-29 01:57:05,132 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3860 transitions. [2023-11-29 01:57:05,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3860 transitions. [2023-11-29 01:57:05,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:57:05,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3860 transitions. [2023-11-29 01:57:05,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 214.44444444444446) internal successors, (3860), 18 states have internal predecessors, (3860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:57:05,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 275.0) internal successors, (5225), 19 states have internal predecessors, (5225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:57:05,139 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 275.0) internal successors, (5225), 19 states have internal predecessors, (5225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:57:05,139 INFO L175 Difference]: Start difference. First operand has 803 places, 1463 transitions, 58145 flow. Second operand 18 states and 3860 transitions. [2023-11-29 01:57:05,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 820 places, 1638 transitions, 64447 flow [2023-11-29 01:57:23,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 816 places, 1638 transitions, 63867 flow, removed 169 selfloop flow, removed 4 redundant places. [2023-11-29 01:57:23,615 INFO L231 Difference]: Finished difference. Result has 826 places, 1517 transitions, 62889 flow [2023-11-29 01:57:23,617 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=57668, PETRI_DIFFERENCE_MINUEND_PLACES=799, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=759, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=673, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=62889, PETRI_PLACES=826, PETRI_TRANSITIONS=1517} [2023-11-29 01:57:23,617 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 648 predicate places. [2023-11-29 01:57:23,617 INFO L495 AbstractCegarLoop]: Abstraction has has 826 places, 1517 transitions, 62889 flow [2023-11-29 01:57:23,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:57:23,618 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:57:23,618 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:57:23,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-29 01:57:23,618 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:57:23,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:57:23,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1016925778, now seen corresponding path program 13 times [2023-11-29 01:57:23,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:57:23,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808144995] [2023-11-29 01:57:23,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:57:23,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:57:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:57:24,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:57:24,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:57:24,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808144995] [2023-11-29 01:57:24,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808144995] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:57:24,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:57:24,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:57:24,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048671690] [2023-11-29 01:57:24,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:57:24,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:57:24,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:57:24,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:57:24,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:57:26,633 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 275 [2023-11-29 01:57:26,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 826 places, 1517 transitions, 62889 flow. Second operand has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:57:26,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:57:26,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 275 [2023-11-29 01:57:26,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:57:57,842 INFO L124 PetriNetUnfolderBase]: 13392/42579 cut-off events. [2023-11-29 01:57:57,842 INFO L125 PetriNetUnfolderBase]: For 2197730/2200967 co-relation queries the response was YES. [2023-11-29 01:57:59,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273134 conditions, 42579 events. 13392/42579 cut-off events. For 2197730/2200967 co-relation queries the response was YES. Maximal size of possible extension queue 1661. Compared 531223 event pairs, 3707 based on Foata normal form. 1719/38575 useless extension candidates. Maximal degree in co-relation 272752. Up to 13974 conditions per place. [2023-11-29 01:57:59,769 INFO L140 encePairwiseOnDemand]: 257/275 looper letters, 785 selfloop transitions, 786 changer transitions 0/1685 dead transitions. [2023-11-29 01:57:59,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 845 places, 1685 transitions, 68598 flow [2023-11-29 01:57:59,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 01:57:59,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-29 01:57:59,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 4273 transitions. [2023-11-29 01:57:59,774 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7769090909090909 [2023-11-29 01:57:59,774 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 4273 transitions. [2023-11-29 01:57:59,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 4273 transitions. [2023-11-29 01:57:59,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:57:59,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 4273 transitions. [2023-11-29 01:57:59,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 213.65) internal successors, (4273), 20 states have internal predecessors, (4273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:57:59,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 275.0) internal successors, (5775), 21 states have internal predecessors, (5775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:57:59,786 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 275.0) internal successors, (5775), 21 states have internal predecessors, (5775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:57:59,786 INFO L175 Difference]: Start difference. First operand has 826 places, 1517 transitions, 62889 flow. Second operand 20 states and 4273 transitions. [2023-11-29 01:57:59,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 845 places, 1685 transitions, 68598 flow [2023-11-29 01:58:17,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 842 places, 1685 transitions, 68220 flow, removed 172 selfloop flow, removed 3 redundant places. [2023-11-29 01:58:17,929 INFO L231 Difference]: Finished difference. Result has 853 places, 1556 transitions, 67218 flow [2023-11-29 01:58:17,930 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=62517, PETRI_DIFFERENCE_MINUEND_PLACES=823, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=751, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=737, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=67218, PETRI_PLACES=853, PETRI_TRANSITIONS=1556} [2023-11-29 01:58:17,931 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 675 predicate places. [2023-11-29 01:58:17,931 INFO L495 AbstractCegarLoop]: Abstraction has has 853 places, 1556 transitions, 67218 flow [2023-11-29 01:58:17,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:58:17,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:58:17,931 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:58:17,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-29 01:58:17,932 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:58:17,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:58:17,932 INFO L85 PathProgramCache]: Analyzing trace with hash -928393912, now seen corresponding path program 14 times [2023-11-29 01:58:17,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:58:17,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474218518] [2023-11-29 01:58:17,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:58:17,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:58:17,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:58:18,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:58:18,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:58:18,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474218518] [2023-11-29 01:58:18,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474218518] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:58:18,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:58:18,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:58:18,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310399440] [2023-11-29 01:58:18,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:58:18,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:58:18,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:58:18,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:58:18,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:58:21,042 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 275 [2023-11-29 01:58:21,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 853 places, 1556 transitions, 67218 flow. Second operand has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:58:21,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:58:21,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 275 [2023-11-29 01:58:21,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:58:52,202 INFO L124 PetriNetUnfolderBase]: 13441/42604 cut-off events. [2023-11-29 01:58:52,202 INFO L125 PetriNetUnfolderBase]: For 2371753/2375179 co-relation queries the response was YES. [2023-11-29 01:58:53,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282186 conditions, 42604 events. 13441/42604 cut-off events. For 2371753/2375179 co-relation queries the response was YES. Maximal size of possible extension queue 1663. Compared 531205 event pairs, 3606 based on Foata normal form. 1858/38727 useless extension candidates. Maximal degree in co-relation 281796. Up to 13703 conditions per place. [2023-11-29 01:58:54,488 INFO L140 encePairwiseOnDemand]: 257/275 looper letters, 720 selfloop transitions, 885 changer transitions 0/1719 dead transitions. [2023-11-29 01:58:54,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 872 places, 1719 transitions, 73397 flow [2023-11-29 01:58:54,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 01:58:54,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-29 01:58:54,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 4250 transitions. [2023-11-29 01:58:54,492 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727 [2023-11-29 01:58:54,492 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 4250 transitions. [2023-11-29 01:58:54,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 4250 transitions. [2023-11-29 01:58:54,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:58:54,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 4250 transitions. [2023-11-29 01:58:54,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 212.5) internal successors, (4250), 20 states have internal predecessors, (4250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:58:54,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 275.0) internal successors, (5775), 21 states have internal predecessors, (5775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:58:54,500 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 275.0) internal successors, (5775), 21 states have internal predecessors, (5775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:58:54,500 INFO L175 Difference]: Start difference. First operand has 853 places, 1556 transitions, 67218 flow. Second operand 20 states and 4250 transitions. [2023-11-29 01:58:54,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 872 places, 1719 transitions, 73397 flow [2023-11-29 01:59:13,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 870 places, 1719 transitions, 72820 flow, removed 178 selfloop flow, removed 2 redundant places. [2023-11-29 01:59:13,146 INFO L231 Difference]: Finished difference. Result has 879 places, 1604 transitions, 71951 flow [2023-11-29 01:59:13,148 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=66664, PETRI_DIFFERENCE_MINUEND_PLACES=851, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1556, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=846, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=687, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=71951, PETRI_PLACES=879, PETRI_TRANSITIONS=1604} [2023-11-29 01:59:13,149 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 701 predicate places. [2023-11-29 01:59:13,149 INFO L495 AbstractCegarLoop]: Abstraction has has 879 places, 1604 transitions, 71951 flow [2023-11-29 01:59:13,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:59:13,149 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:59:13,149 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:59:13,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-29 01:59:13,150 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 01:59:13,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:59:13,150 INFO L85 PathProgramCache]: Analyzing trace with hash -866439702, now seen corresponding path program 15 times [2023-11-29 01:59:13,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:59:13,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481730291] [2023-11-29 01:59:13,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:59:13,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:59:13,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:59:13,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:59:13,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:59:13,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481730291] [2023-11-29 01:59:13,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481730291] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:59:13,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:59:13,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:59:13,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433765981] [2023-11-29 01:59:13,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:59:13,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:59:13,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:59:13,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:59:13,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:59:16,471 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 275 [2023-11-29 01:59:16,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 879 places, 1604 transitions, 71951 flow. Second operand has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:59:16,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:59:16,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 275 [2023-11-29 01:59:16,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:59:52,180 INFO L124 PetriNetUnfolderBase]: 13799/44152 cut-off events. [2023-11-29 01:59:52,180 INFO L125 PetriNetUnfolderBase]: For 2659670/2662980 co-relation queries the response was YES. [2023-11-29 01:59:53,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299030 conditions, 44152 events. 13799/44152 cut-off events. For 2659670/2662980 co-relation queries the response was YES. Maximal size of possible extension queue 1726. Compared 555450 event pairs, 3711 based on Foata normal form. 1795/40044 useless extension candidates. Maximal degree in co-relation 298631. Up to 14544 conditions per place. [2023-11-29 01:59:54,312 INFO L140 encePairwiseOnDemand]: 257/275 looper letters, 824 selfloop transitions, 849 changer transitions 0/1787 dead transitions. [2023-11-29 01:59:54,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 898 places, 1787 transitions, 78601 flow [2023-11-29 01:59:54,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 01:59:54,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-29 01:59:54,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 4281 transitions. [2023-11-29 01:59:54,317 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7783636363636364 [2023-11-29 01:59:54,317 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 4281 transitions. [2023-11-29 01:59:54,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 4281 transitions. [2023-11-29 01:59:54,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:59:54,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 4281 transitions. [2023-11-29 01:59:54,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 214.05) internal successors, (4281), 20 states have internal predecessors, (4281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:59:54,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 275.0) internal successors, (5775), 21 states have internal predecessors, (5775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:59:54,325 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 275.0) internal successors, (5775), 21 states have internal predecessors, (5775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:59:54,325 INFO L175 Difference]: Start difference. First operand has 879 places, 1604 transitions, 71951 flow. Second operand 20 states and 4281 transitions. [2023-11-29 01:59:54,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 898 places, 1787 transitions, 78601 flow [2023-11-29 02:00:14,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 897 places, 1787 transitions, 78262 flow, removed 160 selfloop flow, removed 1 redundant places. [2023-11-29 02:00:14,994 INFO L231 Difference]: Finished difference. Result has 908 places, 1648 transitions, 77017 flow [2023-11-29 02:00:14,996 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=71617, PETRI_DIFFERENCE_MINUEND_PLACES=878, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1604, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=808, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=761, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=77017, PETRI_PLACES=908, PETRI_TRANSITIONS=1648} [2023-11-29 02:00:14,997 INFO L281 CegarLoopForPetriNet]: 178 programPoint places, 730 predicate places. [2023-11-29 02:00:14,997 INFO L495 AbstractCegarLoop]: Abstraction has has 908 places, 1648 transitions, 77017 flow [2023-11-29 02:00:14,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:00:14,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 02:00:14,997 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:00:14,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 02:00:14,997 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 02:00:14,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:00:14,998 INFO L85 PathProgramCache]: Analyzing trace with hash -33835554, now seen corresponding path program 16 times [2023-11-29 02:00:14,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:00:14,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665484937] [2023-11-29 02:00:14,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:00:14,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:00:15,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:00:15,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:00:15,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:00:15,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665484937] [2023-11-29 02:00:15,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665484937] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:00:15,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:00:15,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 02:00:15,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721307263] [2023-11-29 02:00:15,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:00:15,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:00:15,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:00:15,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:00:15,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:00:17,879 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 275 [2023-11-29 02:00:17,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 908 places, 1648 transitions, 77017 flow. Second operand has 12 states, 12 states have (on average 203.5) internal successors, (2442), 12 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:00:17,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 02:00:17,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 275 [2023-11-29 02:00:17,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand